Merge pull request #3324 from rockandska/bats_in_docker

Bats test suite in docker
2025-11-08 11:33:49 -05:00 · 2025-09-15 22:37:01 +03:00
parent 857806e6ca dee36c348d
commit 4033a0a260
38 changed files with 503 additions and 265 deletions
--- a/.github/workflows/pyenv_tests.yml
+++ b/.github/workflows/pyenv_tests.yml
@@ -40,10 +40,15 @@ jobs:
        run: |
          echo $PYENV_ROOT
          echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
-      - run: |
+      - name: Run test on the host
+        run: |
          make test
+      - name: Run test with docker
+        if: ${{ ! contains(matrix.os, 'macos') }}
+        run: |
+          make test-docker
      - env:
          PYENV_NATIVE_EXT: 1
        run: |
          (cd src; ./configure; make)
-          bats/bin/bats test/{pyenv,hooks,versions}.bats
+          bats/bin/bats test/{pyenv,hooks,versions}.bats
--- a/.gitignore
+++ b/.gitignore
@@ -6,7 +6,8 @@
 /libexec/*.dylib
 /src/Makefile
 /src/*.o
-/bats/
+/bats
+/bats-*/
 /default-packages
 .idea
 *.un~
--- a/96
+++ b/96
@@ -1,3 +1,86 @@
+TEST_BATS_VERSION = v1.10.0
+TEST_BASH_VERSIONS = 3.2.57 4.1.17
+TEST_UNIT_DOCKER_PREFIX = test-unit-docker
+TEST_UNIT_DOCKER_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_UNIT_DOCKER_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_UNIT_DOCKER_PREFIX)))
+TEST_PLUGIN_DOCKER_PREFIX = test-plugin-docker
+TEST_PLUGIN_DOCKER_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_PLUGIN_DOCKER_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_PLUGIN_DOCKER_PREFIX)))
+TEST_BATS_IMAGE_PREFIX = test-pyenv-docker-image
+TEST_BATS_IMAGE_TARGETS = $(foreach bash,$(TEST_BASH_VERSIONS),$(addsuffix -$(bash),$(TEST_BATS_IMAGE_PREFIX)) $(addsuffix -gnu-$(bash),$(TEST_BATS_IMAGE_PREFIX)))
+
+.PHONY:
+test-docker: $(TEST_UNIT_DOCKER_PREFIX) $(TEST_PLUGIN_DOCKER_PREFIX)
+
+# Run all unit test under bats docker
+.PHONY: $(TEST_UNIT_DOCKER_PREFIX)
+$(TEST_UNIT_DOCKER_PREFIX): $(TEST_UNIT_DOCKER_TARGETS)
+
+# Run each unit test under bats docker
+.PHONY: $(TEST_UNIT_DOCKER_TARGETS)
+$(TEST_UNIT_DOCKER_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_UNIT_DOCKER_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_UNIT_DOCKER_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_UNIT_DOCKER_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_UNIT_DOCKER_TARGETS): INTERACTIVE = $(if $(findstring true,$(CI)),,-ti)
+$(TEST_UNIT_DOCKER_TARGETS): $(TEST_UNIT_DOCKER_PREFIX)-% : $(TEST_BATS_IMAGE_PREFIX)-%
+	$(info Running test with docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker run \
+		--init \
+		-v $(PWD):/code:ro \
+		-v /etc/passwd:/etc/passwd:ro \
+		-v /etc/group:/etc/group:ro \
+		-u "$$(id -u $$(whoami)):$$(id -g $$(whoami))" \
+		$${BATS_TEST_FILTER:+-e BATS_TEST_FILTER="$${BATS_TEST_FILTER}"} \
+		$${BATS_FILE_FILTER:+-e BATS_FILE_FILTER="$${BATS_FILE_FILTER}"} \
+	        $${CI+-e CI="$${CI}"} \
+	        $(INTERACTIVE) \
+		$(DOCKER_IMAGE):$(DOCKER_TAG) \
+		test/run
+
+# Run all plugin test under bats docker
+.PHONY: $(TEST_PLUGIN_DOCKER_PREFIX)
+$(TEST_PLUGIN_DOCKER_PREFIX): $(TEST_PLUGIN_DOCKER_TARGETS)
+
+# Run each plugin test under bats docker
+.PHONY: $(TEST_PLUGIN_DOCKER_TARGETS)
+$(TEST_PLUGIN_DOCKER_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_PLUGIN_DOCKER_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_PLUGIN_DOCKER_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_PLUGIN_DOCKER_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_PLUGIN_DOCKER_TARGETS): INTERACTIVE = $(if $(findstring true,$(CI)),,-ti)
+$(TEST_PLUGIN_DOCKER_TARGETS): $(TEST_PLUGIN_DOCKER_PREFIX)-% : $(TEST_BATS_IMAGE_PREFIX)-%
+	$(info Running test with docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker run \
+		--init \
+		-v $(PWD):/code:ro \
+		-v /etc/passwd:/etc/passwd:ro \
+		-v /etc/group:/etc/group:ro \
+		-u "$$(id -u $$(whoami)):$$(id -g $$(whoami))" \
+	        $${CI+-e CI="$${CI}"} \
+	        $(INTERACTIVE) \
+		$(DOCKER_IMAGE):$(DOCKER_TAG) \
+		bats $${BATS_TEST_FILTER:+--filter "$${BATS_TEST_FILTER}"} plugins/python-build/test/$${BATS_FILE_FILTER}
+
+# Build all images needed for bats under docker
+.PHONY: $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_BATS_IMAGE_PREFIX): $(TEST_BATS_IMAGE_TARGETS)
+
+# Build each image needed for bats under docker
+.PHONY: $(TEST_BATS_IMAGE_TARGETS)
+$(TEST_BATS_IMAGE_TARGETS): DOCKER_IMAGE = $(TEST_BATS_IMAGE_PREFIX)
+$(TEST_BATS_IMAGE_TARGETS): GNU = $(if $(findstring -gnu-,$@),True,False)
+$(TEST_BATS_IMAGE_TARGETS): BASH = $(filter $(TEST_BASH_VERSIONS),$(subst -, ,$@))
+$(TEST_BATS_IMAGE_TARGETS): DOCKER_TAG = bash-$(BASH)-gnu-$(GNU)
+$(TEST_BATS_IMAGE_TARGETS):
+	$(info Building docker image '$(DOCKER_IMAGE):$(DOCKER_TAG)')
+	docker build \
+		--quiet \
+		-f "$(PWD)/test/Dockerfile" \
+		--build-arg GNU="$(GNU)" \
+		--build-arg BASH="$(BASH)" \
+		--build-arg BATS_VERSION="$(TEST_BATS_VERSION)" \
+		-t $(DOCKER_IMAGE):$(DOCKER_TAG) \
+		./
+
 .PHONY: test test-build test-unit test-plugin

 # Do not pass in user flags to build tests.
@@ -10,7 +93,7 @@ test-unit: bats
 	PATH="./bats/bin:$$PATH" test/run
 	
 test-plugin: bats
-	cd plugins/python-build && $(PWD)/bats/bin/bats $${CI:+--tap} test
+	cd plugins/python-build && $(PWD)/bats/bin/bats $${CI:+--tap} $${BATS_TEST_FILTER:+--filter "$${BATS_TEST_FILTER}"} test/$${BATS_FILE_FILTER}

 PYTHON_BUILD_ROOT := $(CURDIR)/plugins/python-build
 PYTHON_BUILD_OPTS ?= --verbose
@@ -25,5 +108,12 @@ test-build:
 	[ -e $(PYTHON_BUILD_TEST_PREFIX)/bin/pip ]
 	$(PYTHON_BUILD_TEST_PREFIX)/bin/pip -V

-bats:
-	git clone --depth 1 --branch v1.2.0 https://github.com/bats-core/bats-core.git bats
+.SECONDARY: bats-$(TEST_BATS_VERSION)
+bats-$(TEST_BATS_VERSION):
+	rm -rf bats
+	ln -sf bats-$(TEST_BATS_VERSION) bats
+	git clone --depth 1 --branch $(TEST_BATS_VERSION) https://github.com/bats-core/bats-core.git bats-$(TEST_BATS_VERSION)
+
+.PHONY: bats
+bats: bats-$(TEST_BATS_VERSION)
+	ln -sf bats-$(TEST_BATS_VERSION) bats
--- a/libexec/pyenv-init
+++ b/libexec/pyenv-init
@@ -47,7 +47,11 @@ done

 # If shell is not provided, detect it.
 if [ -z "$shell" ]; then
-  shell="$(ps -p "$PPID" -o 'args=' 2>/dev/null || true)"
+  if shell=$(tr '\0' ' ' 2>/dev/null </proc/"$PPID"/cmdline);then
+  	  :
+  else
+  	  shell=$(ps p "$PPID" -o 'args=' 2>/dev/null || true)
+  fi
  shell="${shell%% *}"
  shell="${shell##-}"
  shell="${shell:-$SHELL}"
--- a/plugins/python-build/test/arguments.bats
+++ b/plugins/python-build/test/arguments.bats
@@ -4,7 +4,7 @@ load test_helper

@test "not enough arguments for python-build" {
  # use empty inline definition so nothing gets built anyway
-  local definition="${TMP}/build-definition"
+  local definition="${BATS_TEST_TMPDIR}/build-definition"
  echo '' > "$definition"

  run python-build "$definition"
@@ -14,10 +14,10 @@ load test_helper

@test "extra arguments for python-build" {
  # use empty inline definition so nothing gets built anyway
-  local definition="${TMP}/build-definition"
+  local definition="${BATS_TEST_TMPDIR}/build-definition"
  echo '' > "$definition"

-  run python-build "$definition" "${TMP}/install" ""
+  run python-build "$definition" "${BATS_TEST_TMPDIR}/install" ""
  assert_failure
  assert_output_contains 'Usage: python-build'
 }
--- a/plugins/python-build/test/build.bats
+++ b/plugins/python-build/test/build.bats
@@ -1,13 +1,13 @@
 #!/usr/bin/env bats

 load test_helper
-export PYTHON_BUILD_CACHE_PATH="$TMP/cache"
-export MAKE=make
-export MAKE_OPTS="-j 2"
-export CC=cc
-export -n PYTHON_CONFIGURE_OPTS
+_setup() {
+  export PYTHON_BUILD_CACHE_PATH="$BATS_TEST_TMPDIR/cache"
+  export MAKE=make
+  export MAKE_OPTS="-j 2"
+  export CC=cc
+  export -n PYTHON_CONFIGURE_OPTS

-setup() {
  mkdir -p "$INSTALL_ROOT"
  stub md5 false
  stub curl false
@@ -74,11 +74,11 @@ assert_build_log() {
  unstub make

  assert_build_log <<OUT
-yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 yaml-0.1.6: --prefix=$INSTALL_ROOT
 make -j 2
 make install
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -117,11 +117,11 @@ OUT
  unstub make

  assert_build_log <<OUT
-yaml-0.1.6: CFLAGS="yaml_cflag1 yaml_cflag2" CPPFLAGS="-I${TMP}/install/include yaml_cppflag1 yaml_cppflag2" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib yaml_ldflag1 yaml_ldflag2" PKG_CONFIG_PATH=""
+yaml-0.1.6: CFLAGS="yaml_cflag1 yaml_cflag2" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include yaml_cppflag1 yaml_cppflag2" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib yaml_ldflag1 yaml_ldflag2" PKG_CONFIG_PATH=""
 yaml-0.1.6: --prefix=yaml_prefix_path configure_opt1 configure_opt2 yaml_configure_opt1 yaml_configure_opt2
 make make_opt1 make_opt2 yaml_make_opt1 yaml_make_opt2
 make install make_install_opt1 make_install_opt2
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib configure_opt1 configure_opt2
 make make_opt1 make_opt2
 make python_make_install_target make_install_opt1 make_install_opt2 python_make_install_opt1 python_make_install_opt2
@@ -138,7 +138,7 @@ OUT
  stub_make_install
  stub patch ' : echo patch "$@" | sed -E "s/\.[[:alnum:]]+$/.XXX/" >> build.log'

-  TMPDIR="$TMP" install_fixture --patch definitions/needs-yaml <<<""
+  TMPDIR="$BATS_TEST_TMPDIR" install_fixture --patch definitions/needs-yaml <<<""
  assert_success

  unstub uname
@@ -146,12 +146,12 @@ OUT
  unstub patch

  assert_build_log <<OUT
-yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 yaml-0.1.6: --prefix=$INSTALL_ROOT
 make -j 2
 make install
-patch -p0 --force -i $TMP/python-patch.XXX
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+patch -p0 --force -i $BATS_TEST_TMPDIR/python-patch.XXX
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -168,7 +168,7 @@ OUT
  stub_make_install
  stub patch ' : echo patch "$@" | sed -E "s/\.[[:alnum:]]+$/.XXX/" >> build.log'

-  TMPDIR="$TMP" install_fixture --patch definitions/needs-yaml <<<"diff --git a/script.py"
+  TMPDIR="$BATS_TEST_TMPDIR" install_fixture --patch definitions/needs-yaml <<<"diff --git a/script.py"
  assert_success

  unstub uname
@@ -176,12 +176,12 @@ OUT
  unstub patch

  assert_build_log <<OUT
-yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+yaml-0.1.6: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 yaml-0.1.6: --prefix=$INSTALL_ROOT
 make -j 2
 make install
-patch -p1 --force -i $TMP/python-patch.XXX
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+patch -p1 --force -i $BATS_TEST_TMPDIR/python-patch.XXX
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -191,7 +191,7 @@ OUT
@test "Homebrew and port are tried if both are present in PATH in MacOS" {
  cached_tarball "Python-3.6.2"

-  BREW_PREFIX="$TMP/homebrew-prefix"
+  BREW_PREFIX="$BATS_TEST_TMPDIR/homebrew-prefix"

  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 1010'
@@ -213,7 +213,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -223,7 +223,7 @@ OUT
@test "homebrew with uncommon prefix is added to search path" {
  cached_tarball "Python-3.6.2"

-  BREW_PREFIX="$TMP/homebrew-prefix"
+  BREW_PREFIX="$BATS_TEST_TMPDIR/homebrew-prefix"
  mkdir -p "$BREW_PREFIX"
  export PYTHON_BUILD_SKIP_MACPORTS=1

@@ -244,7 +244,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -254,7 +254,7 @@ OUT
@test "Macports are used in MacOS if Homebrew was not picked" {
  cached_tarball "Python-3.6.2"

-  BREW_PREFIX="$TMP/homebrew-prefix"
+  BREW_PREFIX="$BATS_TEST_TMPDIR/homebrew-prefix"

  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 1010'
@@ -275,7 +275,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I$PORT_PREFIX/include -I${TMP}/install/include" LDFLAGS="-L$PORT_PREFIX/lib -Wl,-rpath,$PORT_PREFIX/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/lib/pkgconfig"
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I$PORT_PREFIX/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L$PORT_PREFIX/lib -Wl,-rpath,$PORT_PREFIX/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/lib/pkgconfig"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -285,7 +285,7 @@ OUT
@test "yaml is linked from Homebrew" {
  cached_tarball "Python-3.6.2"

-  brew_libdir="$TMP/homebrew-yaml"
+  brew_libdir="$BATS_TEST_TMPDIR/homebrew-yaml"
  mkdir -p "$brew_libdir"

  stub uname '-s : echo Darwin'
@@ -303,7 +303,7 @@ OUT
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I$brew_libdir/include -I${TMP}/install/include" LDFLAGS="-L$brew_libdir/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I$brew_libdir/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L$brew_libdir/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -313,7 +313,7 @@ OUT
@test "readline is linked from Homebrew" {
  cached_tarball "Python-3.6.2"

-  readline_libdir="$TMP/homebrew-readline"
+  readline_libdir="$BATS_TEST_TMPDIR/homebrew-readline"
  mkdir -p "$readline_libdir"
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 1010'
@@ -333,7 +333,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I$readline_libdir/include -I${TMP}/install/include" LDFLAGS="-L$readline_libdir/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I$readline_libdir/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L$readline_libdir/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -343,7 +343,7 @@ OUT
@test "ncurses is linked from Homebrew" {
  cached_tarball "Python-3.6.2"

-  ncurses_libdir="$TMP/homebrew-ncurses"
+  ncurses_libdir="$BATS_TEST_TMPDIR/homebrew-ncurses"
  mkdir -p "$ncurses_libdir"
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 1010'
@@ -363,7 +363,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I$ncurses_libdir/include -I${TMP}/install/include" LDFLAGS="-L$ncurses_libdir/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I$ncurses_libdir/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L$ncurses_libdir/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -378,6 +378,9 @@ OUT
  stub port "-q installed libyaml : echo '  libyaml @0.2.5_0 (active)'"
  for i in {1..3}; do stub port false; done
  stub_make_install
+  export PYTHON_BUILD_SKIP_HOMEBREW=1
+  PORT_PREFIX="$(which port)"
+  PORT_PREFIX="${PORT_PREFIX%/bin/port}"

  install_fixture definitions/needs-yaml
  assert_success
@@ -388,7 +391,7 @@ OUT
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/include -I${TMP}/install/include" LDFLAGS="-L${TMP}/lib -Wl,-rpath,${TMP}/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/lib/pkgconfig"
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/lib/pkgconfig"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -403,6 +406,9 @@ OUT
  stub port "-q installed readline : echo '  readline @8.2.013_0 (active)'"
  for i in {1..2}; do stub port false; done
  stub_make_install
+  export PYTHON_BUILD_SKIP_HOMEBREW=1
+  PORT_PREFIX="$(which port)"
+  PORT_PREFIX="${PORT_PREFIX%/bin/port}"

  run_inline_definition <<DEF
 install_package "Python-3.6.2" "http://python.org/ftp/python/3.6.2/Python-3.6.2.tar.gz"
@@ -415,7 +421,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/include -I${TMP}/install/include" LDFLAGS="-L${TMP}/lib -Wl,-rpath,${TMP}/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/lib/pkgconfig"
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/lib/pkgconfig"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -431,6 +437,9 @@ OUT
  stub port "-q installed ncurses : echo '$ncurses_libdir'"
  stub port false
  stub_make_install
+  export PYTHON_BUILD_SKIP_HOMEBREW=1
+  PORT_PREFIX="$(which port)"
+  PORT_PREFIX="${PORT_PREFIX%/bin/port}"

  run_inline_definition <<DEF
 install_package "Python-3.6.2" "http://python.org/ftp/python/3.6.2/Python-3.6.2.tar.gz"
@@ -443,7 +452,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/include -I${TMP}/install/include" LDFLAGS="-L${TMP}/lib -Wl,-rpath,${TMP}/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/lib/pkgconfig"
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/lib/pkgconfig"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -474,7 +483,7 @@ DEF
  unstub sysctl

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib --with-openssl=/usr/local
 make -j 1
 make install
@@ -508,7 +517,7 @@ DEF
    unstub sysctl

    assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include -I/usr/local/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib -L/usr/local/lib -Wl,-rpath,/usr/local/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include -I/usr/local/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib -L/usr/local/lib -Wl,-rpath,/usr/local/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 1
 make install
@@ -538,7 +547,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -565,7 +574,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -589,7 +598,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -617,7 +626,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/include -I${TMP}/install/include" LDFLAGS="-L${TMP}/lib -Wl,-rpath,${TMP}/lib -L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/lib/pkgconfig"
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/include -I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/lib -L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/lib/pkgconfig"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -627,7 +636,7 @@ OUT
@test "homebrew is used in Linux if PYTHON_BUILD_USE_HOMEBREW is set" {
  cached_tarball "Python-3.6.2"

-  BREW_PREFIX="$TMP/homebrew-prefix"
+  BREW_PREFIX="$BATS_TEST_TMPDIR/homebrew-prefix"
  mkdir -p "$BREW_PREFIX"

  stub uname '-s : echo Linux'
@@ -646,7 +655,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -676,7 +685,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include -I$BREW_PREFIX/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib -L$BREW_PREFIX/lib -Wl,-rpath,$BREW_PREFIX/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -686,7 +695,7 @@ OUT
@test "homebrew is not used in Linux if Pyenv is not installed with Homebrew" {
  cached_tarball "Python-3.6.2"

-  BREW_PREFIX="$TMP/homebrew-prefix"
+  BREW_PREFIX="$BATS_TEST_TMPDIR/homebrew-prefix"
  mkdir -p "$BREW_PREFIX"

  stub uname '-s : echo Linux'
@@ -703,7 +712,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -713,7 +722,7 @@ OUT
@test "readline is not linked from Homebrew when explicitly defined" {
  cached_tarball "Python-3.6.2"

-  readline_libdir="$TMP/custom"
+  readline_libdir="$BATS_TEST_TMPDIR/custom"
  mkdir -p "$readline_libdir/include/readline"
  touch "$readline_libdir/include/readline/rlconf.h"

@@ -735,7 +744,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib CPPFLAGS=-I$readline_libdir/include LDFLAGS=-L$readline_libdir/lib
 make -j 2
 make install
@@ -745,7 +754,7 @@ OUT
@test "tcl-tk is linked from Homebrew" {
  cached_tarball "Python-3.6.2"
  tcl_tk_version=8.6
-  tcl_tk_libdir="$TMP/homebrew-tcl-tk"
+  tcl_tk_libdir="$BATS_TEST_TMPDIR/homebrew-tcl-tk"
  mkdir -p "$tcl_tk_libdir/lib"
  echo "TCL_VERSION='$tcl_tk_version'" >>"$tcl_tk_libdir/lib/tclConfig.sh"

@@ -768,8 +777,8 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/homebrew-tcl-tk/lib/pkgconfig"
-Python-3.6.2: --prefix=${TMP}/install --enable-shared --libdir=${TMP}/install/lib --with-tcltk-libs=-L${TMP}/homebrew-tcl-tk/lib -ltcl$tcl_tk_version -ltk$tcl_tk_version --with-tcltk-includes=-I${TMP}/homebrew-tcl-tk/include
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/homebrew-tcl-tk/lib/pkgconfig"
+Python-3.6.2: --prefix=${BATS_TEST_TMPDIR}/install --enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib --with-tcltk-libs=-L${BATS_TEST_TMPDIR}/homebrew-tcl-tk/lib -ltcl$tcl_tk_version -ltk$tcl_tk_version --with-tcltk-includes=-I${BATS_TEST_TMPDIR}/homebrew-tcl-tk/include
 make -j 2
 make install
 OUT
@@ -788,7 +797,7 @@ OUT
  for i in {1..4}; do stub brew false; done
  stub_make_install

-  export PYTHON_CONFIGURE_OPTS="--with-tcltk-libs='-L${TMP}/custom-tcl-tk/lib -ltcl$tcl_tk_version -ltk$tcl_tk_version'"
+  export PYTHON_CONFIGURE_OPTS="--with-tcltk-libs='-L${BATS_TEST_TMPDIR}/custom-tcl-tk/lib -ltcl$tcl_tk_version -ltk$tcl_tk_version'"
  run_inline_definition <<DEF
 install_package "Python-3.6.2" "http://python.org/ftp/python/3.6.2/Python-3.6.2.tar.gz"
 DEF
@@ -800,8 +809,8 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
-Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib --with-tcltk-libs=-L${TMP}/custom-tcl-tk/lib -ltcl8.6 -ltk8.6
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib --with-tcltk-libs=-L${BATS_TEST_TMPDIR}/custom-tcl-tk/lib -ltcl8.6 -ltk8.6
 make -j 2
 make install
 OUT
@@ -813,7 +822,7 @@ OUT
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 1010'

-  tcl_tk_libdir="$TMP/homebrew-tcl-tk"
+  tcl_tk_libdir="$BATS_TEST_TMPDIR/homebrew-tcl-tk"
  mkdir -p "$tcl_tk_libdir/lib"

  stub brew "--prefix tcl-tk@8 : echo '${tcl_tk_libdir}'"
@@ -833,8 +842,8 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH="${TMP}/homebrew-tcl-tk/lib/pkgconfig"
-Python-3.6.2: --prefix=${TMP}/install --enable-shared --libdir=${TMP}/install/lib
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH="${BATS_TEST_TMPDIR}/homebrew-tcl-tk/lib/pkgconfig"
+Python-3.6.2: --prefix=${BATS_TEST_TMPDIR}/install --enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib
 make -j 2
 make install
 OUT
@@ -845,6 +854,7 @@ OUT

  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 10.10'
+  for i in {1..6}; do stub brew false; done

  stub sysctl false
  stub_make_install
@@ -857,10 +867,11 @@ DEF

  unstub uname
  unstub sw_vers
+  unstub brew
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -872,6 +883,7 @@ OUT

  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 10.10'
+  for i in {1..6}; do stub brew false; done

  stub sysctl '-n hw.ncpu : echo 4'
  stub_make_install
@@ -884,11 +896,12 @@ DEF

  unstub uname
  unstub sw_vers
+  unstub brew
  unstub sysctl
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 4
 make install
@@ -916,7 +929,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 1
 make install
@@ -940,7 +953,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install DOGE="such wow"
@@ -964,7 +977,7 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --libdir=$INSTALL_ROOT/lib --disable-shared
 make -j 2
 make install
@@ -991,8 +1004,8 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
-Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=${TMP}/install/lib --with-dsymutil
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib --with-dsymutil
 make -j 2
 make install
 OUT
@@ -1014,8 +1027,8 @@ DEF
  unstub make

  assert_build_log <<OUT
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
-Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=${TMP}/install/lib
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib
 make -j 2
 make install
 OUT
@@ -1024,7 +1037,7 @@ OUT
@test "custom relative install destination" {
  export PYTHON_BUILD_CACHE_PATH="$FIXTURE_ROOT"

-  cd "$TMP"
+  cd "$BATS_TEST_TMPDIR"
  install_fixture definitions/without-checksum ./here
  assert_success
  assert [ -x ./here/bin/package ]
@@ -1076,7 +1089,7 @@ OUT
@test "can use PYTHON_CONFIGURE to apply a patch" {
  cached_tarball "Python-3.6.2"

-  executable "${TMP}/custom-configure" <<CONF
+  executable "${BATS_TEST_TMPDIR}/custom-configure" <<CONF
 #!$BASH
 apply -p1 -i /my/patch.diff
 exec ./configure "\$@"
@@ -1086,7 +1099,7 @@ CONF
  stub apply 'echo apply "$@" >> build.log'
  stub_make_install

-  export PYTHON_CONFIGURE="${TMP}/custom-configure"
+  export PYTHON_CONFIGURE="${BATS_TEST_TMPDIR}/custom-configure"
  run_inline_definition <<DEF
 install_package "Python-3.6.2" "http://python.org/ftp/python/3.6.2/Python-3.6.2.tar.gz"
 DEF
@@ -1098,7 +1111,7 @@ DEF

  assert_build_log <<OUT
 apply -p1 -i /my/patch.diff
-Python-3.6.2: CFLAGS="" CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib" PKG_CONFIG_PATH=""
+Python-3.6.2: CFLAGS="" CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib" PKG_CONFIG_PATH=""
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -1119,22 +1132,22 @@ OUT
  assert_success "hello world"
 }

-@test "non-writable TMPDIR aborts build" {
-  export TMPDIR="${TMP}/build"
+@test "non-writable BATS_TEST_TMPDIRDIR aborts build" {
+  export TMPDIR="${BATS_TEST_TMPDIR}/build"
  mkdir -p "$TMPDIR"
  chmod -w "$TMPDIR"

-  touch "${TMP}/build-definition"
-  run python-build "${TMP}/build-definition" "$INSTALL_ROOT"
+  touch "${BATS_TEST_TMPDIR}/build-definition"
+  run python-build "${BATS_TEST_TMPDIR}/build-definition" "$INSTALL_ROOT"
  assert_failure "python-build: TMPDIR=$TMPDIR is set to a non-accessible location"
 }

@test "non-executable TMPDIR aborts build" {
-  export TMPDIR="${TMP}/build"
+  export TMPDIR="${BATS_TEST_TMPDIR}/build"
  mkdir -p "$TMPDIR"
  chmod -x "$TMPDIR"

-  touch "${TMP}/build-definition"
-  run python-build "${TMP}/build-definition" "$INSTALL_ROOT"
+  touch "${BATS_TEST_TMPDIR}/build-definition"
+  run python-build "${BATS_TEST_TMPDIR}/build-definition" "$INSTALL_ROOT"
  assert_failure "python-build: TMPDIR=$TMPDIR is set to a non-accessible location"
 }
--- a/plugins/python-build/test/cache.bats
+++ b/plugins/python-build/test/cache.bats
@@ -1,10 +1,9 @@
 #!/usr/bin/env bats

 load test_helper
-export PYTHON_BUILD_SKIP_MIRROR=1
-export PYTHON_BUILD_CACHE_PATH="$TMP/cache"
-
-setup() {
+_setup() {
+  export PYTHON_BUILD_SKIP_MIRROR=1
+  export PYTHON_BUILD_CACHE_PATH="$BATS_TEST_TMPDIR/cache"
  mkdir "$PYTHON_BUILD_CACHE_PATH"
 }

@@ -77,7 +76,7 @@ setup() {
@test "nonexistent cache directory is ignored" {
  stub curl "-q -o * -*S* http://example.com/* : cp $FIXTURE_ROOT/\${5##*/} \$3"

-  export PYTHON_BUILD_CACHE_PATH="${TMP}/nonexistent"
+  export PYTHON_BUILD_CACHE_PATH="${BATS_TEST_TMPDIR}/nonexistent"

  install_fixture definitions/without-checksum

--- a/plugins/python-build/test/checksum.bats
+++ b/plugins/python-build/test/checksum.bats
@@ -106,7 +106,7 @@ export PYTHON_BUILD_CACHE_PATH=
  stub wget false

  export -n PYTHON_BUILD_CACHE_PATH
-  export PYTHON_BUILD_BUILD_PATH="${TMP}/build"
+  export PYTHON_BUILD_BUILD_PATH="${BATS_TEST_TMPDIR}/build"

  mkdir -p "$PYTHON_BUILD_BUILD_PATH"
  ln -s "${FIXTURE_ROOT}/package-1.0.0.tar.gz" "$PYTHON_BUILD_BUILD_PATH"
@@ -128,7 +128,7 @@ DEF
  stub curl "-q -o * -*S* http://example.com/* : cp $FIXTURE_ROOT/\${5##*/} \$3"

  export -n PYTHON_BUILD_CACHE_PATH
-  export PYTHON_BUILD_BUILD_PATH="${TMP}/build"
+  export PYTHON_BUILD_BUILD_PATH="${BATS_TEST_TMPDIR}/build"

  mkdir -p "$PYTHON_BUILD_BUILD_PATH"
  touch "${PYTHON_BUILD_BUILD_PATH}/package-1.0.0.tar.gz"
--- a/plugins/python-build/test/compiler.bats
+++ b/plugins/python-build/test/compiler.bats
@@ -1,11 +1,13 @@
 #!/usr/bin/env bats

 load test_helper
-export MAKE=make
-export MAKE_OPTS='-j 2'
-export -n CFLAGS
-export -n CC
-export -n PYTHON_CONFIGURE_OPTS
+_setup() {
+  export MAKE=make
+  export MAKE_OPTS='-j 2'
+  export -n CFLAGS
+  export -n CC
+  export -n PYTHON_CONFIGURE_OPTS
+}

@test "require_gcc on OS X 10.9" {

@@ -21,7 +23,7 @@ echo MACOSX_DEPLOYMENT_TARGET=\${MACOSX_DEPLOYMENT_TARGET-no}
 DEF
  assert_success
  assert_output <<OUT
-CC=${TMP}/bin/gcc
+CC=${BATS_TEST_TMPDIR}/bin/gcc
 MACOSX_DEPLOYMENT_TARGET=10.9
 OUT

@@ -48,7 +50,7 @@ DEF

  assert_success
  assert_output <<OUT
-CC=${TMP}/bin/gcc
+CC=${BATS_TEST_TMPDIR}/bin/gcc
 MACOSX_DEPLOYMENT_TARGET=10.10
 OUT
 }
@@ -60,7 +62,7 @@ OUT
 require_gcc
 echo \$CC
 DEF
-  assert_success "${TMP}/bin/gcc"
+  assert_success "${BATS_TEST_TMPDIR}/bin/gcc"

  unstub gcc
 }
@@ -92,7 +94,7 @@ build_package_standard python
 DEF
  assert_success
  assert_output <<OUT
-./configure --prefix=$INSTALL_ROOT --enable-shared --libdir=${TMP}/install/lib
+./configure --prefix=$INSTALL_ROOT --enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib
 CC=clang
 CFLAGS=no
 make -j 2
@@ -120,6 +122,6 @@ DEF

    assert_success
    assert_output <<OUT
-CFLAGS_EXTRA=-DMICROPY_PY_SYS_PATH_DEFAULT='".frozen:${TMP}/install/lib/micropython"' -Wno-floating-conversion
+CFLAGS_EXTRA=-DMICROPY_PY_SYS_PATH_DEFAULT='".frozen:${BATS_TEST_TMPDIR}/install/lib/micropython"' -Wno-floating-conversion
 OUT
 }
--- a/plugins/python-build/test/definitions.bats
+++ b/plugins/python-build/test/definitions.bats
@@ -12,14 +12,14 @@ NUM_DEFINITIONS="$(find "$BATS_TEST_DIRNAME"/../share/python-build -maxdepth 1 -
 }

@test "custom PYTHON_BUILD_ROOT: nonexistent" {
-  export PYTHON_BUILD_ROOT="$TMP"
+  export PYTHON_BUILD_ROOT="$BATS_TEST_TMPDIR"
  refute [ -e "${PYTHON_BUILD_ROOT}/share/python-build" ]
  run python-build --definitions
  assert_success ""
 }

@test "custom PYTHON_BUILD_ROOT: single definition" {
-  export PYTHON_BUILD_ROOT="$TMP"
+  export PYTHON_BUILD_ROOT="$BATS_TEST_TMPDIR"
  mkdir -p "${PYTHON_BUILD_ROOT}/share/python-build"
  touch "${PYTHON_BUILD_ROOT}/share/python-build/2.7.8-test"
  run python-build --definitions
@@ -27,7 +27,7 @@ NUM_DEFINITIONS="$(find "$BATS_TEST_DIRNAME"/../share/python-build -maxdepth 1 -
 }

@test "one path via PYTHON_BUILD_DEFINITIONS" {
-  export PYTHON_BUILD_DEFINITIONS="${TMP}/definitions"
+  export PYTHON_BUILD_DEFINITIONS="${BATS_TEST_TMPDIR}/definitions"
  mkdir -p "$PYTHON_BUILD_DEFINITIONS"
  touch "${PYTHON_BUILD_DEFINITIONS}/2.7.8-test"
  run python-build --definitions
@@ -37,11 +37,11 @@ NUM_DEFINITIONS="$(find "$BATS_TEST_DIRNAME"/../share/python-build -maxdepth 1 -
 }

@test "multiple paths via PYTHON_BUILD_DEFINITIONS" {
-  export PYTHON_BUILD_DEFINITIONS="${TMP}/definitions:${TMP}/other"
-  mkdir -p "${TMP}/definitions"
-  touch "${TMP}/definitions/2.7.8-test"
-  mkdir -p "${TMP}/other"
-  touch "${TMP}/other/3.4.2-test"
+  export PYTHON_BUILD_DEFINITIONS="${BATS_TEST_TMPDIR}/definitions:${BATS_TEST_TMPDIR}/other"
+  mkdir -p "${BATS_TEST_TMPDIR}/definitions"
+  touch "${BATS_TEST_TMPDIR}/definitions/2.7.8-test"
+  mkdir -p "${BATS_TEST_TMPDIR}/other"
+  touch "${BATS_TEST_TMPDIR}/other/3.4.2-test"
  run python-build --definitions
  assert_success
  assert_output_contains "2.7.8-test"
@@ -50,23 +50,23 @@ NUM_DEFINITIONS="$(find "$BATS_TEST_DIRNAME"/../share/python-build -maxdepth 1 -
 }

@test "installing definition from PYTHON_BUILD_DEFINITIONS by priority" {
-  export PYTHON_BUILD_DEFINITIONS="${TMP}/definitions:${TMP}/other"
-  mkdir -p "${TMP}/definitions"
-  echo true > "${TMP}/definitions/2.7.8-test"
-  mkdir -p "${TMP}/other"
-  echo false > "${TMP}/other/2.7.8-test"
-  run python-build "2.7.8-test" "${TMP}/install"
+  export PYTHON_BUILD_DEFINITIONS="${BATS_TEST_TMPDIR}/definitions:${BATS_TEST_TMPDIR}/other"
+  mkdir -p "${BATS_TEST_TMPDIR}/definitions"
+  echo true > "${BATS_TEST_TMPDIR}/definitions/2.7.8-test"
+  mkdir -p "${BATS_TEST_TMPDIR}/other"
+  echo false > "${BATS_TEST_TMPDIR}/other/2.7.8-test"
+  run python-build "2.7.8-test" "${BATS_TEST_TMPDIR}/install"
  assert_success ""
 }

@test "installing nonexistent definition" {
-  run python-build "nonexistent" "${TMP}/install"
+  run python-build "nonexistent" "${BATS_TEST_TMPDIR}/install"
  assert [ "$status" -eq 2 ]
  assert_output "python-build: definition not found: nonexistent"
 }

@test "sorting Python versions" {
-  export PYTHON_BUILD_ROOT="$TMP"
+  export PYTHON_BUILD_ROOT="$BATS_TEST_TMPDIR"
  mkdir -p "${PYTHON_BUILD_ROOT}/share/python-build"
  expected="2.7-dev
 2.7
@@ -87,15 +87,15 @@ jython-2.5.4-rc1
 jython-2.7-beta1
 jython-2.7-beta2
 jython-2.7-beta3"
-  for ver in "$expected"; do
+  while IFS=$'\n' read -r ver; do
    touch "${PYTHON_BUILD_ROOT}/share/python-build/$ver"
-  done
+  done <<<"$expected"
  run python-build --definitions
  assert_success "$expected"
 }

@test "removing duplicate Python versions" {
-  export PYTHON_BUILD_ROOT="$TMP"
+  export PYTHON_BUILD_ROOT="$BATS_TEST_TMPDIR"
  export PYTHON_BUILD_DEFINITIONS="${PYTHON_BUILD_ROOT}/share/python-build"
  mkdir -p "$PYTHON_BUILD_DEFINITIONS"
  touch "${PYTHON_BUILD_DEFINITIONS}/2.7.8"
--- a/plugins/python-build/test/fetch.bats
+++ b/plugins/python-build/test/fetch.bats
@@ -1,11 +1,10 @@
 #!/usr/bin/env bats

 load test_helper
-export PYTHON_BUILD_SKIP_MIRROR=1
-export PYTHON_BUILD_CACHE_PATH=
-
-setup() {
-  export PYTHON_BUILD_BUILD_PATH="${TMP}/source"
+_setup() {
+  export PYTHON_BUILD_SKIP_MIRROR=1
+  export PYTHON_BUILD_CACHE_PATH=
+  export PYTHON_BUILD_BUILD_PATH="${BATS_TEST_TMPDIR}/source"
  mkdir -p "${PYTHON_BUILD_BUILD_PATH}"
 }

@@ -29,7 +28,7 @@ setup() {
 Downloading package-1.0.0.tar.gz...
 -> http://example.com/packages/package-1.0.0.tar.gz
 Installing package-1.0.0...
-Installed package-1.0.0 to ${TMP}/install
+Installed package-1.0.0 to ${BATS_TEST_TMPDIR}/install
 OUT
  unstub aria2c
 }
@@ -44,7 +43,7 @@ DEF
  assert_output <<OUT
 Cloning http://example.com/packages/package.git...
 Installing package-dev...
-Installed package-dev to ${TMP}/install
+Installed package-dev to ${BATS_TEST_TMPDIR}/install
 OUT
  unstub git
 }
@@ -62,7 +61,7 @@ DEF
  assert_output <<OUT
 Cloning http://example.com/packages/package.git...
 Installing package-dev...
-Installed package-dev to ${TMP}/install
+Installed package-dev to ${BATS_TEST_TMPDIR}/install
 OUT
  unstub git
 }
--- a/plugins/python-build/test/hooks.bats
+++ b/plugins/python-build/test/hooks.bats
@@ -2,9 +2,9 @@

 load test_helper

-setup() {
-  export PYENV_ROOT="${TMP}/pyenv"
-  export HOOK_PATH="${TMP}/i has hooks"
+_setup() {
+  export PYENV_ROOT="${BATS_TEST_TMPDIR}/pyenv"
+  export HOOK_PATH="${BATS_TEST_TMPDIR}/i has hooks"
  mkdir -p "$HOOK_PATH"
 }

@@ -16,7 +16,7 @@ OUT
  stub pyenv-hooks "install : echo '$HOOK_PATH'/install.bash"
  stub pyenv-rehash "echo rehashed"

-  definition="${TMP}/3.6.2"
+  definition="${BATS_TEST_TMPDIR}/3.6.2"
  stub pyenv-latest "echo $definition"

  cat > "$definition" <<<"echo python-build"
--- a/plugins/python-build/test/installer.bats
+++ b/plugins/python-build/test/installer.bats
@@ -3,7 +3,7 @@
 load test_helper

@test "installs python-build into PREFIX" {
-  cd "$TMP"
+  cd "$BATS_TEST_TMPDIR"
  PREFIX="${PWD}/usr" run "${BATS_TEST_DIRNAME}/../install.sh"
  assert_success ""

@@ -18,7 +18,7 @@ load test_helper
 }

@test "build definitions don't have the executable bit" {
-  cd "$TMP"
+  cd "$BATS_TEST_TMPDIR"
  PREFIX="${PWD}/usr" run "${BATS_TEST_DIRNAME}/../install.sh"
  assert_success ""

@@ -30,7 +30,7 @@ OUT
 }

@test "overwrites old installation" {
-  cd "$TMP"
+  cd "$BATS_TEST_TMPDIR"
  mkdir -p bin share/python-build
  touch bin/python-build
  touch share/python-build/2.7.2
@@ -44,7 +44,7 @@ OUT
 }

@test "unrelated files are untouched" {
-  cd "$TMP"
+  cd "$BATS_TEST_TMPDIR"
  mkdir -p bin share/bananas
  chmod g-w bin
  touch bin/bananas
--- a/plugins/python-build/test/mirror.bats
+++ b/plugins/python-build/test/mirror.bats
@@ -1,10 +1,12 @@
 #!/usr/bin/env bats

 load test_helper
-export PYTHON_BUILD_SKIP_MIRROR=
-export PYTHON_BUILD_CACHE_PATH=
-export PYTHON_BUILD_MIRROR_URL=http://mirror.example.com

+_setup() {
+  export PYTHON_BUILD_SKIP_MIRROR=
+  export PYTHON_BUILD_CACHE_PATH=
+  export PYTHON_BUILD_MIRROR_URL=http://mirror.example.com
+}

@test "package URL without checksum bypasses mirror" {
  stub shasum true
--- a/plugins/python-build/test/pyenv.bats
+++ b/plugins/python-build/test/pyenv.bats
@@ -1,9 +1,9 @@
 #!/usr/bin/env bats

 load test_helper
-export PYENV_ROOT="${TMP}/pyenv"

-setup() {
+_setup() {
+  export PYENV_ROOT="${BATS_TEST_TMPDIR}/pyenv"
  stub pyenv-hooks 'install : true'
  stub pyenv-rehash true
 }
@@ -39,8 +39,8 @@ stub_python_build() {
  run pyenv-install 3.4.1 3.4.2
  assert_success
  assert_output <<OUT
-python-build 3.4.1 ${TMP}/pyenv/versions/3.4.1
-python-build 3.4.2 ${TMP}/pyenv/versions/3.4.2
+python-build 3.4.1 ${BATS_TEST_TMPDIR}/pyenv/versions/3.4.1
+python-build 3.4.2 ${BATS_TEST_TMPDIR}/pyenv/versions/3.4.2
 OUT

  unstub python-build
@@ -54,7 +54,7 @@ OUT
  run pyenv-install 3.4.1 3.4.2
  assert_failure
  assert_output <<OUT
-fail: python-build 3.4.1 ${TMP}/pyenv/versions/3.4.1
+fail: python-build 3.4.1 ${BATS_TEST_TMPDIR}/pyenv/versions/3.4.1
 OUT

  unstub python-build
@@ -293,10 +293,11 @@ OUT
 }

@test "invalid arguments for pyenv-uninstall" {
+  bats_require_minimum_version 1.5.0
  mkdir -p "${PYENV_ROOT}/versions/3.10.3"
  mkdir -p "${PYENV_ROOT}/versions/3.10.4"

-  run pyenv-uninstall -f 3.10.3 --invalid-option 3.10.4
+  run -127 pyenv-uninstall -f 3.10.3 --invalid-option 3.10.4
  assert_failure

  assert [ -d "${PYENV_ROOT}/versions/3.10.3" ]
--- a/plugins/python-build/test/pyenv_ext.bats
+++ b/plugins/python-build/test/pyenv_ext.bats
@@ -1,15 +1,14 @@
 #!/usr/bin/env bats

 load test_helper
-export PYTHON_BUILD_CACHE_PATH="$TMP/cache"
-export MAKE=make
-export MAKE_OPTS="-j 2"
-export CC=cc
-export PYTHON_BUILD_HTTP_CLIENT="curl"

-export TMP_FIXTURES="$TMP/fixtures"
-
-setup() {
+_setup() {
+  export PYTHON_BUILD_CACHE_PATH="$BATS_TEST_TMPDIR/cache"
+  export MAKE=make
+  export MAKE_OPTS="-j 2"
+  export CC=cc
+  export PYTHON_BUILD_HTTP_CLIENT="curl"
+  export TMP_FIXTURES="$BATS_TEST_TMPDIR/fixtures"
  mkdir -p "$INSTALL_ROOT"
  stub md5 false
  stub curl false
@@ -100,7 +99,7 @@ run_inline_definition_with_name() {
    shift 1
    ;;
  esac
-  local definition="${TMP}/${definition_name}"
+  local definition="${BATS_TEST_TMPDIR}/${definition_name}"
  cat > "$definition"
  run python-build "$definition" "${1:-$INSTALL_ROOT}"
 }
@@ -118,12 +117,12 @@ run_inline_definition_with_name() {
  stub uname '-s : echo Linux'
  stub uname '-s : echo Linux'

-  TMPDIR="$TMP" install_tmp_fixture definitions/vanilla-python < /dev/null
+  TMPDIR="$BATS_TEST_TMPDIR" install_tmp_fixture definitions/vanilla-python < /dev/null
  assert_success

  assert_build_log <<OUT
-patch -p0 --force -i $TMP/python-patch.XXX
-Python-3.6.2: CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib"
+patch -p0 --force -i $BATS_TEST_TMPDIR/python-patch.XXX
+Python-3.6.2: CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -146,14 +145,14 @@ OUT

  stub uname '-s : echo Linux'

-  TMPDIR="$TMP" install_tmp_fixture definitions/vanilla-python < /dev/null
+  TMPDIR="$BATS_TEST_TMPDIR" install_tmp_fixture definitions/vanilla-python < /dev/null
  assert_success

  assert_build_log <<OUT
 patch: bar
 patch: baz
 patch: foo
-Python-3.6.2: CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib"
+Python-3.6.2: CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make install
@@ -173,11 +172,11 @@ OUT

  stub uname '-s : echo Darwin'

-  PYTHON_MAKE_INSTALL_TARGET="altinstall" TMPDIR="$TMP" install_tmp_fixture definitions/vanilla-python < /dev/null
+  PYTHON_MAKE_INSTALL_TARGET="altinstall" TMPDIR="$BATS_TEST_TMPDIR" install_tmp_fixture definitions/vanilla-python < /dev/null
  assert_success

  assert_build_log <<OUT
-Python-3.6.2: CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib"
+Python-3.6.2: CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib
 make -j 2
 make altinstall
@@ -194,7 +193,7 @@ echo "python \$@" >> "${INSTALL_ROOT}/build.log"
 OUT
  chmod +x "${INSTALL_ROOT}/bin/python"

-  PYTHON_MAKE_INSTALL_TARGET="" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_MAKE_INSTALL_TARGET="" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 build_package_ensurepip
 OUT
  assert_success
@@ -212,7 +211,7 @@ echo "python \$@" >> "${INSTALL_ROOT}/build.log"
 OUT
  chmod +x "${INSTALL_ROOT}/bin/python"

-  PYTHON_MAKE_INSTALL_TARGET="altinstall" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_MAKE_INSTALL_TARGET="altinstall" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 build_package_ensurepip
 OUT
  assert_success
@@ -233,7 +232,7 @@ OUT
  touch "${INSTALL_ROOT}/bin/python3.4-config"
  chmod +x "${INSTALL_ROOT}/bin/python3.4-config"

-  TMPDIR="$TMP" run_inline_definition <<OUT
+  TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 verify_python python3.4
 OUT
  assert_success
@@ -256,7 +255,7 @@ OUT
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 10.10'

-  PYTHON_CONFIGURE_OPTS="--enable-framework" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_CONFIGURE_OPTS="--enable-framework" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "PYTHON_CONFIGURE_OPTS_ARRAY=(\${PYTHON_CONFIGURE_OPTS_ARRAY[@]})"
 echo "PYTHON_CONFIGURE_OPTS=(\${PYTHON_CONFIGURE_OPTS})"
 echo "CONFIGURE_OPTS=(\${CONFIGURE_OPTS})"
@@ -264,7 +263,7 @@ verify_python python3.4
 OUT
  assert_success
  assert_output <<EOS
-PYTHON_CONFIGURE_OPTS_ARRAY=(--libdir=${TMP}/install/lib --enable-framework=${TMP}/install/Library/Frameworks)
+PYTHON_CONFIGURE_OPTS_ARRAY=(--libdir=${BATS_TEST_TMPDIR}/install/lib --enable-framework=${BATS_TEST_TMPDIR}/install/Library/Frameworks)
 PYTHON_CONFIGURE_OPTS=()
 CONFIGURE_OPTS=()
 EOS
@@ -279,14 +278,14 @@ EOS
  stub sw_vers '-productVersion : echo 10.10'
  stub arch "echo x86_64"

-  PYTHON_CONFIGURE_OPTS="--enable-universalsdk" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_CONFIGURE_OPTS="--enable-universalsdk" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "PYTHON_CONFIGURE_OPTS_ARRAY=(\${PYTHON_CONFIGURE_OPTS_ARRAY[@]})"
 echo "PYTHON_CONFIGURE_OPTS=(\${PYTHON_CONFIGURE_OPTS})"
 echo "CONFIGURE_OPTS=(\${CONFIGURE_OPTS})"
 OUT
  assert_success
  assert_output <<EOS
-PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${TMP}/install/lib --enable-universalsdk=/)
+PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib --enable-universalsdk=/)
 PYTHON_CONFIGURE_OPTS=()
 CONFIGURE_OPTS=()
 EOS
@@ -298,14 +297,14 @@ EOS
  stub sw_vers '-productVersion : echo 11.7'
  stub arch "echo arm64"

-  PYTHON_CONFIGURE_OPTS="--enable-universalsdk" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_CONFIGURE_OPTS="--enable-universalsdk" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "PYTHON_CONFIGURE_OPTS_ARRAY=(\${PYTHON_CONFIGURE_OPTS_ARRAY[@]})"
 echo "PYTHON_CONFIGURE_OPTS=(\${PYTHON_CONFIGURE_OPTS})"
 echo "CONFIGURE_OPTS=(\${CONFIGURE_OPTS})"
 OUT
  assert_success
  assert_output <<EOS
-PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${TMP}/install/lib --enable-universalsdk=/ --with-universal-archs=universal2)
+PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib --enable-universalsdk=/ --with-universal-archs=universal2)
 PYTHON_CONFIGURE_OPTS=()
 CONFIGURE_OPTS=()
 EOS
@@ -316,12 +315,12 @@ EOS
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 11.7'

-  PYTHON_CONFIGURE_OPTS="--enable-universalsdk --with-universal-archs=foo" TMPDIR="$TMP" run_inline_definition <<OUT
+  PYTHON_CONFIGURE_OPTS="--enable-universalsdk --with-universal-archs=foo" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "PYTHON_CONFIGURE_OPTS_ARRAY=(\${PYTHON_CONFIGURE_OPTS_ARRAY[@]})"
 OUT
  assert_success
  assert_output <<EOS
-PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${TMP}/install/lib --enable-universalsdk=/)
+PYTHON_CONFIGURE_OPTS_ARRAY=(--enable-shared --libdir=${BATS_TEST_TMPDIR}/install/lib --enable-universalsdk=/)
 EOS
 }

@@ -334,11 +333,11 @@ EOS
    " : echo \"$MAKE \$@\" >> build.log" \
    " : echo \"$MAKE \$@\" >> build.log && cat build.log >> '$INSTALL_ROOT/build.log'"

-  PYTHON_CONFIGURE_OPTS="--enable-unicode=ucs2" TMPDIR="$TMP" install_tmp_fixture definitions/vanilla-python < /dev/null
+  PYTHON_CONFIGURE_OPTS="--enable-unicode=ucs2" TMPDIR="$BATS_TEST_TMPDIR" install_tmp_fixture definitions/vanilla-python < /dev/null
  assert_success

  assert_build_log <<OUT
-Python-3.6.2: CPPFLAGS="-I${TMP}/install/include" LDFLAGS="-L${TMP}/install/lib -Wl,-rpath,${TMP}/install/lib"
+Python-3.6.2: CPPFLAGS="-I${BATS_TEST_TMPDIR}/install/include" LDFLAGS="-L${BATS_TEST_TMPDIR}/install/lib -Wl,-rpath,${BATS_TEST_TMPDIR}/install/lib"
 Python-3.6.2: --prefix=$INSTALL_ROOT --enable-shared --libdir=$INSTALL_ROOT/lib --enable-unicode=ucs2
 make -j 2
 make install
@@ -353,7 +352,7 @@ OUT
  stub uname '-s : echo Darwin'
  stub sw_vers '-productVersion : echo 10.10'

-  TMPDIR="$TMP" run_inline_definition <<OUT
+  TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "\${MACOSX_DEPLOYMENT_TARGET}"
 OUT
  assert_success
@@ -366,7 +365,7 @@ OUT

  stub uname '-s : echo Darwin'

-  MACOSX_DEPLOYMENT_TARGET="10.4" TMPDIR="$TMP" run_inline_definition <<OUT
+  MACOSX_DEPLOYMENT_TARGET="10.4" TMPDIR="$BATS_TEST_TMPDIR" run_inline_definition <<OUT
 echo "\${MACOSX_DEPLOYMENT_TARGET}"
 OUT
  assert_success
--- a/plugins/python-build/test/stubs/stub
+++ b/plugins/python-build/test/stubs/stub
@@ -4,7 +4,6 @@ set -e
 status=0
 program="${0##*/}"
 PROGRAM="$(echo "$program" | tr a-z- A-Z_)"
-[ -n "$TMPDIR" ] || TMPDIR="/tmp"

 _STUB_PLAN="${PROGRAM}_STUB_PLAN"
 _STUB_RUN="${PROGRAM}_STUB_RUN"
@@ -13,11 +12,11 @@ _STUB_RESULT="${PROGRAM}_STUB_RESULT"
 _STUB_END="${PROGRAM}_STUB_END"
 _STUB_LOG="${PROGRAM}_STUB_LOG"

-[ -n "${!_STUB_LOG}" ] || eval "${_STUB_LOG}"="${TMPDIR}/${program}-stub-log"
+[ -n "${!_STUB_LOG}" ] || eval "${_STUB_LOG}"="${BATS_TEST_TMPDIR}/${program}-stub-log"
 if test -z "${!_STUB_END}"; then echo "$program" "$@" >>"${!_STUB_LOG}"; fi

 [ -e "${!_STUB_PLAN}" ] || exit 1
-[ -n "${!_STUB_RUN}" ] || eval "${_STUB_RUN}"="${TMPDIR}/${program}-stub-run"
+[ -n "${!_STUB_RUN}" ] || eval "${_STUB_RUN}"="${BATS_TEST_TMPDIR}/${program}-stub-run"


 # Initialize or load the stub run information.
--- a/plugins/python-build/test/test_helper.bash
+++ b/plugins/python-build/test/test_helper.bash
@@ -1,21 +1,18 @@
-export TMP="$BATS_TEST_DIRNAME/tmp"
-export PYTHON_BUILD_CURL_OPTS=
-export PYTHON_BUILD_HTTP_CLIENT="curl"
+setup() {
+  export PYTHON_BUILD_CURL_OPTS=
+  export PYTHON_BUILD_HTTP_CLIENT="curl"

-if [ "$FIXTURE_ROOT" != "$BATS_TEST_DIRNAME/fixtures" ]; then
-  export FIXTURE_ROOT="$BATS_TEST_DIRNAME/fixtures"
-  export INSTALL_ROOT="$TMP/install"
-  PATH="/usr/bin:/bin:/usr/sbin:/sbin"
-  if [ "FreeBSD" = "$(uname -s)" ]; then
-    PATH="/usr/local/bin:$PATH"
-  fi
-  PATH="$BATS_TEST_DIRNAME/../bin:$PATH"
-  PATH="$TMP/bin:$PATH"
+  export FIXTURE_ROOT="${BATS_TEST_DIRNAME}/fixtures"
+  export INSTALL_ROOT="${BATS_TEST_TMPDIR}/install"
+  PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
+  PATH="${BATS_TEST_DIRNAME}/../bin:$PATH"
+  PATH="${BATS_TEST_TMPDIR}/bin:$PATH"
  export PATH
-fi

-teardown() {
-  rm -fr "${TMP:?}"/*
+  # If test specific setup exist, run it
+  if [[ $(type -t _setup) == function ]];then
+    _setup
+  fi
 }

 stub() {
@@ -23,22 +20,22 @@ stub() {
  local prefix="$(echo "$program" | tr a-z- A-Z_)"
  shift

-  export "${prefix}_STUB_PLAN"="${TMP}/${program}-stub-plan"
-  export "${prefix}_STUB_RUN"="${TMP}/${program}-stub-run"
-  export "${prefix}_STUB_LOG"="${TMP}/${program}-stub-log"
+  export "${prefix}_STUB_PLAN"="${BATS_TEST_TMPDIR}/${program}-stub-plan"
+  export "${prefix}_STUB_RUN"="${BATS_TEST_TMPDIR}/${program}-stub-run"
+  export "${prefix}_STUB_LOG"="${BATS_TEST_TMPDIR}/${program}-stub-log"
  export "${prefix}_STUB_END"=

-  mkdir -p "${TMP}/bin"
-  ln -sf "${BATS_TEST_DIRNAME}/stubs/stub" "${TMP}/bin/${program}"
+  mkdir -p "${BATS_TEST_TMPDIR}/bin"
+  cp "${BATS_TEST_DIRNAME}/stubs/stub" "${BATS_TEST_TMPDIR}/bin/${program}"

-  touch "${TMP}/${program}-stub-plan"
-  for arg in "$@"; do printf "%s\n" "$arg" >> "${TMP}/${program}-stub-plan"; done
+  touch "${BATS_TEST_TMPDIR}/${program}-stub-plan"
+  for arg in "$@"; do printf "%s\n" "$arg" >> "${BATS_TEST_TMPDIR}/${program}-stub-plan"; done
 }

 unstub() {
  local program="$1"
  local prefix="$(echo "$program" | tr a-z- A-Z_)"
-  local path="${TMP}/bin/${program}"
+  local path="${BATS_TEST_TMPDIR}/bin/${program}"

  export "${prefix}_STUB_END"=1

@@ -46,12 +43,12 @@ unstub() {
  "$path" || STATUS="$?"

  rm -f "$path"
-  rm -f "${TMP}/${program}-stub-plan" "${TMP}/${program}-stub-run"
+  rm -f "${BATS_TEST_TMPDIR}/${program}-stub-plan" "${BATS_TEST_TMPDIR}/${program}-stub-run"
  return "$STATUS"
 }

 run_inline_definition() {
-  local definition="${TMP}/build-definition"
+  local definition="${BATS_TEST_TMPDIR}/build-definition"
  cat > "$definition"
  run python-build "$definition" "${1:-$INSTALL_ROOT}"
 }
@@ -87,7 +84,7 @@ flunk() {
  { if [ "$#" -eq 0 ]; then cat -
    else echo "$@"
    fi
-  } | sed "s:${TMP}:\${TMP}:g" >&2
+  } | sed "s:${BATS_TEST_TMPDIR}:\${BATS_TEST_TMPDIR}:g" >&2
  return 1
 }

--- a/plugins/python-build/test/version.bats
+++ b/plugins/python-build/test/version.bats
@@ -2,8 +2,8 @@

 load test_helper

-bats_bin="${BATS_TEST_DIRNAME}/../bin/python-build"
-static_version="$(grep VERSION "$bats_bin" | head -n1 | cut -d'"' -f 2)"
+python_build_bin="${BATS_TEST_DIRNAME}/../bin/python-build"
+static_version="$(grep VERSION "$python_build_bin" | head -n1 | cut -d'"' -f 2)"

@test "python-build static version" {
  stub git 'echo "ASPLODE" >&2; exit 1'
--- a/test/--version.bats
+++ b/test/--version.bats
@@ -2,9 +2,8 @@

 load test_helper

-export GIT_DIR="${PYENV_TEST_DIR}/.git"
-
-setup() {
+_setup() {
+  export GIT_DIR="${PYENV_TEST_DIR}/.git"
  mkdir -p "$HOME"
  git config --global user.name  "Tester"
  git config --global user.email "tester@test.local"
--- a/test/Dockerfile
+++ b/test/Dockerfile
@@ -0,0 +1,25 @@
+ARG BASH
+
+FROM alpine/git:v2.30.0 as bats
+ARG BATS_VERSION
+  RUN git clone https://github.com/bats-core/bats-core.git /root/bats-core \
+        && cd /root/bats-core \
+        && git checkout "${BATS_VERSION}"
+
+FROM bash:$BASH
+  # Gnu tools
+  RUN if [[ "${GNU:-}" == True ]];then \
+    apk add sed coreutils findutils \
+  ;fi
+  # Bats
+  RUN apk add --update parallel ncurses git \
+        && mkdir -p ~/.parallel \
+        && touch ~/.parallel/will-cite
+  COPY --from=bats /root/bats-core /root/bats-core
+  RUN /root/bats-core/install.sh "/usr/local"
+  # Clean
+  RUN rm -rf /var/cache/apk/*
+  # Setup
+  RUN echo 'source /etc/profile' >> ~/.bashrc
+  WORKDIR /code/
+  CMD ["bash"]
--- a/test/README.md
+++ b/test/README.md
@@ -0,0 +1,76 @@
+# TEST
+
+---
+
+## Running test suite
+
+Test suite could be launch with `make` by providing the right target depending what you want to achieve.
+
+Under the hood, `pyenv` test suites use `bats` as a test framework and are run on the host or docker depending of the target provided to make.
+
+
+
+### Targets
+
+- `test`
+  - Run the whole test suite on the local host
+- `test-docker`
+  - Run the whole test suite on docker
+    - Some volumes are used in read-only mode
+- `test-unit`
+  - Run the unit test
+- `test-plugin`
+  - Run the plugin test
+- `test-unit-docker-[BASH_VERSION]`
+  - Run the unit test under **official** bash docker container (alpine/busybox) with the specified bash version if present is in the `Makefile`
+  - Some volumes are used in read-only mode
+- `test-unit-docker-gnu-[BASH_VERSION]`
+  - Run the unit test under **official** bash docker container (alpine/busybox), completed by **GNU Tools**, with the specified bash version if present is in the `Makefile`
+  - Some volumes are used in read-only mode
+- `test-plugin-docker-[BASH_VERSION]`
+  - Run the plugin test under **official** bash docker container (alpine/busybox), completed by **GNU Tools**, with the specified bash version if present is in the `Makefile`
+  - Some volumes are used in read-only mode
+- `test-plugin-docker-gnu-[BASH_VERSION]`
+  - Run the plugin test under **official** bash docker container (alpine/busybox), completed by **GNU Tools**, with the specified bash version if present is in the `Makefile`
+  - Some volumes are used in read-only mode
+
+## Targeting specific test / test file
+
+ By setting some environment variables, it is possible to filtering which test and/or test file who will be tested with bats
+
+- `BATS_FILE_FILTER`
+
+  - Run test only with the specified file
+
+- `BATS_TEST_FILTER`
+  - Run test only who corresponding to the filter provided
+
+
+### Examples
+
+```bash
+    $ BATS_TEST_FILTER=".*installed.*" BATS_FILE_FILTER="build.bats" make test-plugin-docker-gnu-3.2.57
+    build.bats
+     ✓ yaml is installed for python
+     ✓ homebrew is used in Linux if Pyenv is installed with Homebrew
+     ✓ homebrew is not used in Linux if Pyenv is not installed with Homebrew
+    
+    3 tests, 0 failures
+    
+    $ BATS_TEST_FILTER=".*installed.*" BATS_FILE_FILTER="build.bats" make test-plugin
+    build.bats
+     ✓ yaml is installed for python
+     ✓ homebrew is used in Linux if Pyenv is installed with Homebrew
+     ✓ homebrew is not used in Linux if Pyenv is not installed with Homebrew
+    
+    3 tests, 0 failures
+```
+
+
+
+## Writing test
+
+To be reproducible, each test use/should use its own `TMPDIR` .  
+It's achieved by using the environment variable `BATS_TEST_TMPDIR` provided by bats that is automatically deleted at the end of each test. More info [here](https://bats-core.readthedocs.io/en/stable/writing-tests.html#special-variables)
+
+Another variable who could be used to source some file who need to be tested is `BATS_TEST_DIRNAME` who point to the directory in which the bats test file is located.
--- a/test/exec.bats
+++ b/test/exec.bats
@@ -8,15 +8,16 @@ create_executable() {
  bin="${PYENV_ROOT}/versions/${PYENV_VERSION}/bin"
  mkdir -p "$bin"
  { if [ $# -eq 0 ]; then cat -
-    else echo "$@"
+    else printf '%s\n' "$@"
    fi
  } | sed -Ee '1s/^ +//' > "${bin}/$name"
  chmod +x "${bin}/$name"
 }

@test "fails with invalid version" {
+  bats_require_minimum_version 1.5.0
  export PYENV_VERSION="3.4"
-  run pyenv-exec nonexistent
+  run -127 pyenv-exec nonexistent
  assert_failure <<EOF
 pyenv: version \`3.4' is not installed (set by PYENV_VERSION environment variable)
 pyenv: nonexistent: command not found
@@ -24,10 +25,11 @@ EOF
 }

@test "fails with invalid version set from file" {
+  bats_require_minimum_version 1.5.0
  mkdir -p "$PYENV_TEST_DIR"
  cd "$PYENV_TEST_DIR"
  echo 2.7 > .python-version
-  run pyenv-exec nonexistent
+  run -127 pyenv-exec nonexistent
  assert_failure <<EOF
 pyenv: version \`2.7' is not installed (set by $PWD/.python-version)
 pyenv: nonexistent: command not found
@@ -85,18 +87,25 @@ OUT
 }

@test "sys.executable with system version (#98)" {
-  system_python="$(python3 -c 'import sys; print(sys.executable)')"
+  export PATH="${PYENV_ROOT}/versions/bin:${PATH}"
+  create_executable "python3" <<SH
+#!$BASH
+echo system
+SH
+  system_python="$(python3)"
+  assert_equal "${system_python}" "system"

-  PYENV_VERSION="custom"
-  create_executable "python3" ""
-  unset PYENV_VERSION
+  export PYENV_VERSION="custom"
+  create_executable "python3" "#!/bin/sh" "echo custom"

  pyenv-rehash
-  run pyenv-exec python3 -c 'import sys; print(sys.executable)'
-  assert_success "${system_python}"
+
+  custom_python="$(pyenv-exec python3)"
+  assert_equal "${custom_python}" "custom"
 }

@test 'PATH is not modified with system Python' {
+  export PATH="${PYENV_TEST_DIR}:${PATH}"
  # Create a wrapper executable that verifies PATH.
  PYENV_VERSION="custom"
  create_executable "python3" '[[ "$PATH" == "${PYENV_TEST_DIR}/root/versions/custom/bin:"* ]] || { echo "unexpected:$PATH"; exit 2;}'
@@ -104,7 +113,13 @@ OUT
  pyenv-rehash

  # Path is not modified with system Python.
-  run pyenv-exec python3 -c 'import os; print(os.getenv("PATH"))'
+  cat > "${PYENV_TEST_DIR}/python3" <<SH
+#!$BASH
+echo \$PATH
+SH
+  chmod +x "${PYENV_TEST_DIR}/python3"
+  pyenv-rehash
+  run pyenv-exec python3
  assert_success "$PATH"

  # Path is modified with custom Python.
@@ -116,6 +131,6 @@ OUT
  assert_success

  # Path is not modified with system:custom Python.
-  PYENV_VERSION=system:custom run pyenv-exec python3 -c 'import os; print(os.getenv("PATH"))'
+  PYENV_VERSION=system:custom run pyenv-exec python3
  assert_success "$PATH"
 }
--- a/test/init.bats
+++ b/test/init.bats
@@ -2,7 +2,7 @@

 load test_helper

-setup() {
+_setup() {
  export PATH="${PYENV_TEST_DIR}/bin:$PATH"
 }

--- a/test/latest.bats
+++ b/test/latest.bats
@@ -2,7 +2,7 @@

 load test_helper

-setup() {
+_setup() {
  export PATH="${PYENV_TEST_DIR}/bin:$PATH"
 }

--- a/test/local.bats
+++ b/test/local.bats
@@ -2,7 +2,7 @@

 load test_helper

-setup() {
+_setup() {
  mkdir -p "${PYENV_TEST_DIR}/myproject"
  cd "${PYENV_TEST_DIR}/myproject"
 }
--- a/test/prefix.bats
+++ b/test/prefix.bats
@@ -20,7 +20,7 @@ load test_helper
  mkdir -p "${PYENV_TEST_DIR}/bin"
  touch "${PYENV_TEST_DIR}/bin/python"
  chmod +x "${PYENV_TEST_DIR}/bin/python"
-  PYENV_VERSION="system" run pyenv-prefix
+  PATH="${PYENV_TEST_DIR}/libexec:$PATH" PYENV_VERSION="system" run pyenv-prefix
  assert_success "$PYENV_TEST_DIR"
 }

@@ -34,15 +34,15 @@ load test_helper
 }

@test "prefix for system in /" {
-  mkdir -p "${BATS_TEST_DIRNAME}/libexec"
-  cat >"${BATS_TEST_DIRNAME}/libexec/pyenv-which" <<OUT
+  mkdir -p "${PYENV_TEST_DIR}/libexec"
+  cat >"${PYENV_TEST_DIR}/libexec/pyenv-which" <<OUT
 #!/bin/sh
 echo /bin/python
 OUT
-  chmod +x "${BATS_TEST_DIRNAME}/libexec/pyenv-which"
-  PYENV_VERSION="system" run pyenv-prefix
+  chmod +x "${PYENV_TEST_DIR}/libexec/pyenv-which"
+  PATH="${PYENV_TEST_DIR}/libexec:$PATH" PYENV_VERSION="system" run pyenv-prefix
  assert_success "/"
-  rm -f "${BATS_TEST_DIRNAME}/libexec/pyenv-which"
+  rm -f "${PYENV_TEST_DIR}/libexec/pyenv-which"
 }

@test "prefix for invalid system" {
--- a/test/pyenv.bats
+++ b/test/pyenv.bats
@@ -32,14 +32,14 @@ load test_helper
 }

@test "inherited PYENV_DIR" {
-  dir="${BATS_TMPDIR}/myproject"
+  dir="${BATS_TEST_TMPDIR}/myproject"
  mkdir -p "$dir"
  PYENV_DIR="$dir" run pyenv echo PYENV_DIR
  assert_output "$dir"
 }

@test "invalid PYENV_DIR" {
-  dir="${BATS_TMPDIR}/does-not-exist"
+  dir="${BATS_TEST_TMPDIR}/does-not-exist"
  assert [ ! -d "$dir" ]
  PYENV_DIR="$dir" run pyenv echo PYENV_DIR
  assert_failure
--- a/test/run
+++ b/test/run
@@ -6,4 +6,4 @@ if [ -n "$PYENV_NATIVE_EXT" ]; then
  make -C src
 fi

-exec bats ${CI:+--tap} test
+exec bats ${CI:+--tap} ${BATS_TEST_FILTER:+--filter "${BATS_TEST_FILTER}"} test/${BATS_FILE_FILTER}
--- a/test/test_helper.bash
+++ b/test/test_helper.bash
@@ -1,20 +1,23 @@
 unset PYENV_VERSION
 unset PYENV_DIR

-# guard against executing this block twice due to bats internals
-if [ -z "$PYENV_TEST_DIR" ]; then
-  PYENV_TEST_DIR="${BATS_TMPDIR}/pyenv"
-  export PYENV_TEST_DIR="$(mktemp -d "${PYENV_TEST_DIR}.XXX" 2>/dev/null || echo "$PYENV_TEST_DIR")"
-
-  if enable -f "${BATS_TEST_DIRNAME}"/../libexec/pyenv-realpath.dylib realpath 2>/dev/null; then
-    export PYENV_TEST_DIR="$(realpath "$PYENV_TEST_DIR")"
-  else
+setup() {
+  if ! enable -f "${BATS_TEST_DIRNAME}"/../libexec/pyenv-realpath.dylib realpath 2>/dev/null; then
    if [ -n "$PYENV_NATIVE_EXT" ]; then
      echo "pyenv: failed to load \`realpath' builtin" >&2
      exit 1
    fi
  fi

+  local bats_test_tmpdir="$(realpath "${BATS_TEST_TMPDIR}")"
+  if [ -z "${bats_test_tmpdir}" ];then
+    # Use readlink if running in a container instead of realpath lib
+    bats_test_tmpdir="$(readlink -f "${BATS_TEST_TMPDIR}")"
+  fi
+
+  # update BATS_TEST_TMPDIR discover by realpath/readlink to avoid "//"
+  export BATS_TEST_TMPDIR="${bats_test_tmpdir}"
+  export PYENV_TEST_DIR="${BATS_TEST_TMPDIR}/pyenv"
  export PYENV_ROOT="${PYENV_TEST_DIR}/root"
  export HOME="${PYENV_TEST_DIR}/home"
  export PYENV_HOOK_PATH="${PYENV_ROOT}/pyenv.d"
@@ -28,10 +31,11 @@ if [ -z "$PYENV_TEST_DIR" ]; then

  for xdg_var in `env 2>/dev/null | grep ^XDG_ | cut -d= -f1`; do unset "$xdg_var"; done
  unset xdg_var
-fi

-teardown() {
-  rm -rf "$PYENV_TEST_DIR"
+  # If test specific setup exist, run it
+  if [[ $(type -t _setup) == function ]];then
+    _setup
+  fi
 }

 flunk() {
--- a/test/version-file-read.bats
+++ b/test/version-file-read.bats
@@ -2,7 +2,7 @@

 load test_helper

-setup() {
+_setup() {
  mkdir -p "${PYENV_TEST_DIR}/myproject"
  cd "${PYENV_TEST_DIR}/myproject"
 }
--- a/test/version-file-write.bats
+++ b/test/version-file-write.bats
@@ -2,8 +2,8 @@

 load test_helper

-setup() {
-  mkdir -p "$PYENV_TEST_DIR"
+_setup() {
+  mkdir -p "${PYENV_TEST_DIR}"
  cd "$PYENV_TEST_DIR"
 }

--- a/test/version-file.bats
+++ b/test/version-file.bats
@@ -2,8 +2,8 @@

 load test_helper

-setup() {
-  mkdir -p "$PYENV_TEST_DIR"
+_setup() {
+  mkdir -p "${PYENV_TEST_DIR}"
  cd "$PYENV_TEST_DIR"
 }

--- a/test/version-name.bats
+++ b/test/version-name.bats
@@ -6,8 +6,8 @@ create_version() {
  mkdir -p "${PYENV_ROOT}/versions/$1"
 }

-setup() {
-  mkdir -p "$PYENV_TEST_DIR"
+_setup() {
+  mkdir -p "${PYENV_TEST_DIR}"
  cd "$PYENV_TEST_DIR"
 }

--- a/test/version-origin.bats
+++ b/test/version-origin.bats
@@ -2,8 +2,8 @@

 load test_helper

-setup() {
-  mkdir -p "$PYENV_TEST_DIR"
+_setup() {
+  mkdir -p "${PYENV_TEST_DIR}"
  cd "$PYENV_TEST_DIR"
 }

--- a/test/version.bats
+++ b/test/version.bats
@@ -6,8 +6,8 @@ create_version() {
  mkdir -p "${PYENV_ROOT}/versions/$1"
 }

-setup() {
-  mkdir -p "$PYENV_TEST_DIR"
+_setup() {
+  mkdir -p "${PYENV_ROOT}"
  cd "$PYENV_TEST_DIR"
 }

@@ -78,4 +78,4 @@ OUT
  assert_output <<OUT
 3.3.3
 OUT
-}
+}
--- a/test/versions.bats
+++ b/test/versions.bats
@@ -11,7 +11,7 @@ create_alias() {
  ln -s "$2" "${PYENV_ROOT}/versions/$1"
 }

-setup() {
+_setup() {
  mkdir -p "$PYENV_TEST_DIR"
  cd "$PYENV_TEST_DIR"
 }
@@ -238,6 +238,7 @@ OUT
 }

@test "non-bare output shows symlink contents" {
+  stub_system_python
  create_version "1.9.0"
  create_alias "link" "1.9.0"

--- a/test/which.bats
+++ b/test/which.bats
@@ -60,17 +60,19 @@ create_executable() {
 }

@test "doesn't include current directory in PATH search" {
+  bats_require_minimum_version 1.5.0
  mkdir -p "$PYENV_TEST_DIR"
  cd "$PYENV_TEST_DIR"
  touch kill-all-humans
  chmod +x kill-all-humans
-  PATH="$(path_without "kill-all-humans")" PYENV_VERSION=system run pyenv-which kill-all-humans
+  PATH="$(path_without "kill-all-humans")" PYENV_VERSION=system run -127 pyenv-which kill-all-humans
  assert_failure "pyenv: kill-all-humans: command not found"
 }

@test "version not installed" {
+  bats_require_minimum_version 1.5.0
  create_executable "3.4" "py.test"
-  PYENV_VERSION=3.3 run pyenv-which py.test
+  PYENV_VERSION=3.3 run -127 pyenv-which py.test
  assert_failure <<OUT
 pyenv: version \`3.3' is not installed (set by PYENV_VERSION environment variable)
 pyenv: py.test: command not found
@@ -84,8 +86,9 @@ OUT
 }

@test "versions not installed" {
+  bats_require_minimum_version 1.5.0
  create_executable "3.4" "py.test"
-  PYENV_VERSION=2.7:3.3 run pyenv-which py.test
+  PYENV_VERSION=2.7:3.3 run -127 pyenv-which py.test
  assert_failure <<OUT
 pyenv: version \`2.7' is not installed (set by PYENV_VERSION environment variable)
 pyenv: version \`3.3' is not installed (set by PYENV_VERSION environment variable)
@@ -100,22 +103,25 @@ OUT
 }

@test "no executable found" {
+  bats_require_minimum_version 1.5.0
  create_executable "2.7" "py.test"
-  PYENV_VERSION=2.7 run pyenv-which fab
+  PYENV_VERSION=2.7 run -127 pyenv-which fab
  assert_failure "pyenv: fab: command not found"
 }

@test "no executable found for system version" {
-  PATH="$(path_without "rake")" PYENV_VERSION=system run pyenv-which rake
+  bats_require_minimum_version 1.5.0
+  PATH="$(path_without "rake")" PYENV_VERSION=system run -127 pyenv-which rake
  assert_failure "pyenv: rake: command not found"
 }

@test "executable found in other versions" {
+  bats_require_minimum_version 1.5.0
  create_executable "2.7" "python"
  create_executable "3.3" "py.test"
  create_executable "3.4" "py.test"

-  PYENV_VERSION=2.7 run pyenv-which py.test
+  PYENV_VERSION=2.7 run -127 pyenv-which py.test
  assert_failure
  assert_output <<OUT
 pyenv: py.test: command not found
@@ -188,11 +194,12 @@ exit
 }

@test "skip advice supresses error messages" {
+  bats_require_minimum_version 1.5.0
  create_executable "2.7" "python"
  create_executable "3.3" "py.test"
  create_executable "3.4" "py.test"

-  PYENV_VERSION=2.7 run pyenv-which py.test --skip-advice
+  PYENV_VERSION=2.7 run -127 pyenv-which py.test --skip-advice
  assert_failure
  assert_output <<OUT
 pyenv: py.test: command not found