Set up Github Actions CI (#440)

* Adjust tests: update Pip URLs, update expected output to match newer code
* Test library: improve failure message to eliminate the illusion of extra leading space in "actual" output
* Use Bats 1.2.0 like Pyenv
* Install greadlink for old MacOS
* Delete duplicate test

.github/workflows/tests.yml

@@ -0,0 +1,37 @@
+name: tests
+on: [pull_request, push]
+jobs:
+  tests:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - ubuntu-20.04
+          - macos-12
+          - macos-11
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v2
+      # Normally, we would use the superbly maintained...
+      # - uses: actions/setup-python@v2
+      #   with:
+      #    python-version: ${{ matrix.python-version }}
+      # ... but in the repo, we want to test pyenv builds on Ubuntu
+      # - run: |
+          # sudo apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev \
+              # libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
+              # xz-utils tk-dev libffi-dev liblzma-dev python-openssl git
+      # https://github.com/pyenv/pyenv#installation
+      #- env:
+      #    PYENV_ROOT: /home/runner/work/pyenv/pyenv
+      #  run: |
+      #    echo $PYENV_ROOT
+      #    echo "$PYENV_ROOT/shims:$PYENV_ROOT/bin" >> $GITHUB_PATH
+      # macos-11 Github Actions env has an old `readlink` and lacks `greadlink` which causes Bats to break
+      - run: |
+          if [[ $RUNNER_OS == "macOS" ]] && [[ $(sw_vers -productVersion | awk -F. '{print $1}') -lt 12 ]]; then
+            brew install coreutils
+          fi
+      - run: git clone https://github.com/bats-core/bats-core.git --depth=1 -b v1.2.0 bats
+      - run: bats/bin/bats --tap test

test/deactivate.bats

@@ -54,7 +54,7 @@ EOS
   export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
   export PYENV_ACTIVATE_SHELL=
 
-  PYENV_SHELL="bash" run pyenv-sh-deactivate --quit
+  PYENV_SHELL="bash" run pyenv-sh-deactivate --quiet
 
   assert_success
   assert_output <<EOS
@@ -110,36 +110,6 @@ fi;
 EOS
 }
 
-@test "deactivate virtualenv (quiet)" {
-  export PYENV_VIRTUALENV_INIT=1
-  export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
-  export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
-  export PYENV_ACTIVATE_SHELL=
-
-  PYENV_SHELL="bash" run pyenv-sh-deactivate --quiet
-
-  assert_success
-  assert_output <<EOS
-unset PYENV_VIRTUAL_ENV;
-unset VIRTUAL_ENV;
-if [ -n "\${_OLD_VIRTUAL_PATH:-}" ]; then
-  export PATH="\${_OLD_VIRTUAL_PATH}";
-  unset _OLD_VIRTUAL_PATH;
-fi;
-if [ -n "\${_OLD_VIRTUAL_PYTHONHOME:-}" ]; then
-  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
-  unset _OLD_VIRTUAL_PYTHONHOME;
-fi;
-if [ -n "\${_OLD_VIRTUAL_PS1:-}" ]; then
-  export PS1="\${_OLD_VIRTUAL_PS1}";
-  unset _OLD_VIRTUAL_PS1;
-fi;
-if declare -f deactivate 1>/dev/null 2>&1; then
-  unset -f deactivate;
-fi;
-EOS
-}
-
 @test "deactivate virtualenv (with shell activation)" {
   export PYENV_VIRTUALENV_INIT=1
   export PYENV_VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"

test/init.bats

@@ -72,6 +72,8 @@ EOS
   run pyenv-virtualenv-init - fish
   assert_success
   assert_output <<EOS
+while set index (contains -i -- "${TMP}/pyenv/plugins/pyenv-virtualenv/shims" \$PATH)
+set -eg PATH[\$index]; end; set -e index
 set -gx PATH '${TMP}/pyenv/plugins/pyenv-virtualenv/shims' \$PATH;
 set -gx PYENV_VIRTUALENV_INIT 1;
 function _pyenv_virtualenv_hook --on-event fish_prompt;

test/pip.bats

@@ -63,7 +63,7 @@ OUT
   assert_success
   assert_output <<OUT
 PYENV_VERSION=3.3.6 python3.3 -m venv ${PYENV_ROOT}/versions/3.3.6/envs/venv
-Installing pip from https://bootstrap.pypa.io/3.3/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/3.3/get-pip.py...
 PYENV_VERSION=3.3.6/envs/venv python -s ${TMP}/pyenv/cache/get-pip.py
 rehashed
 OUT

test/test_helper.bash

@@ -74,8 +74,10 @@ assert_failure() {
 
 assert_equal() {
   if [ "$1" != "$2" ]; then
-    { echo "expected: $1"
-      echo "actual:   $2"
+    { echo "expected:"
+      echo "$1"
+      echo "actual:"
+      echo "$2"
     } | flunk
   fi
 }

test/virtualenv.bats

@@ -38,7 +38,7 @@ unstub_pyenv() {
 
   assert_output <<OUT
 PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
-Installing pip from https://bootstrap.pypa.io/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
   assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
@@ -67,7 +67,7 @@ OUT
 
   assert_output <<OUT
 PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
-Installing pip from https://bootstrap.pypa.io/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
   assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
@@ -97,7 +97,7 @@ OUT
 
   assert_output <<OUT
 PYENV_VERSION=2.7.11 virtualenv --verbose --python=${TMP}/python ${PYENV_ROOT}/versions/2.7.11/envs/venv
-Installing pip from https://bootstrap.pypa.io/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
   assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
@@ -127,7 +127,7 @@ OUT
 
   assert_output <<OUT
 PYENV_VERSION=2.7.11 virtualenv --verbose --python=${TMP}/python ${PYENV_ROOT}/versions/2.7.11/envs/venv
-Installing pip from https://bootstrap.pypa.io/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
   assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
@@ -192,7 +192,7 @@ OUT
 
   assert_output <<OUT
 PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/foo
-Installing pip from https://bootstrap.pypa.io/get-pip.py...
+Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
   assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/foo/bin/pydoc" ]