Import tests from rbenv with sed -e s/rbenv/pyenv/g

test/exec.bats

@@ -0,0 +1,113 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+create_executable() {
+  name="${1?}"
+  shift 1
+  bin="${PYENV_ROOT}/versions/${PYENV_VERSION}/bin"
+  mkdir -p "$bin"
+  { if [ $# -eq 0 ]; then cat -
+    else echo "$@"
+    fi
+  } | sed -Ee '1s/^ +//' > "${bin}/$name"
+  chmod +x "${bin}/$name"
+}
+
+@test "fails with invalid version" {
+  export PYENV_VERSION="2.0"
+  run pyenv-exec python -v
+  assert_failure "pyenv: version \`2.0' is not installed"
+}
+
+@test "completes with names of executables" {
+  export PYENV_VERSION="2.0"
+  create_executable "python" "#!/bin/sh"
+  create_executable "rake" "#!/bin/sh"
+
+  pyenv-rehash
+  run pyenv-completions exec
+  assert_success
+  assert_output <<OUT
+rake
+python
+OUT
+}
+
+@test "supports hook path with spaces" {
+  hook_path="${PYENV_TEST_DIR}/custom stuff/pyenv hooks"
+  mkdir -p "${hook_path}/exec"
+  echo "export HELLO='from hook'" > "${hook_path}/exec/hello.bash"
+
+  export PYENV_VERSION=system
+  PYENV_HOOK_PATH="$hook_path" run pyenv-exec env
+  assert_success
+  assert_line "HELLO=from hook"
+}
+
+@test "carries original IFS within hooks" {
+  hook_path="${PYENV_TEST_DIR}/pyenv.d"
+  mkdir -p "${hook_path}/exec"
+  cat > "${hook_path}/exec/hello.bash" <<SH
+hellos=(\$(printf "hello\\tugly world\\nagain"))
+echo HELLO="\$(printf ":%s" "\${hellos[@]}")"
+SH
+
+  export PYENV_VERSION=system
+  PYENV_HOOK_PATH="$hook_path" IFS=$' \t\n' run pyenv-exec env
+  assert_success
+  assert_line "HELLO=:hello:ugly:world:again"
+}
+
+@test "forwards all arguments" {
+  export PYENV_VERSION="2.0"
+  create_executable "python" <<SH
+#!$BASH
+echo \$0
+for arg; do
+  # hack to avoid bash builtin echo which can't output '-e'
+  printf "  %s\\n" "\$arg"
+done
+SH
+
+  run pyenv-exec python -w "/path to/python script.rb" -- extra args
+  assert_success
+  assert_output <<OUT
+${PYENV_ROOT}/versions/2.0/bin/python
+  -w
+  /path to/python script.rb
+  --
+  extra
+  args
+OUT
+}
+
+@test "supports python -S <cmd>" {
+  export PYENV_VERSION="2.0"
+
+  # emulate `python -S' behavior
+  create_executable "python" <<SH
+#!$BASH
+if [[ \$1 == "-S"* ]]; then
+  found="\$(PATH="\${PYTHONPATH:-\$PATH}" which \$2)"
+  # assert that the found executable has python for shebang
+  if head -1 "\$found" | grep python >/dev/null; then
+    \$BASH "\$found"
+  else
+    echo "python: no Python script found in input (LoadError)" >&2
+    exit 1
+  fi
+else
+  echo 'python 2.0 (pyenv test)'
+fi
+SH
+
+  create_executable "rake" <<SH
+#!/usr/bin/env python
+echo hello rake
+SH
+
+  pyenv-rehash
+  run python -S rake
+  assert_success "hello rake"
+}