Add unittest

test/hooks.bats

@@ -0,0 +1,33 @@
+#!/usr/bin/env bats
+
+load test_helper
+
+setup() {
+  export PYENV_ROOT="${TMP}/pyenv"
+  export HOOK_PATH="${TMP}/i has hooks"
+  mkdir -p "$HOOK_PATH"
+}
+
+@test "pyenv-virtualenv hooks" {
+  cat > "${HOOK_PATH}/virtualenv.bash" <<OUT
+before_virtualenv 'echo before: \$VIRTUALENV_PATH'
+after_virtualenv 'echo after: \$STATUS'
+OUT
+  stub pyenv-prefix "echo '${PYENV_ROOT}/versions/\${PYENV_VERSION}'"
+  stub pyenv-which "virtualenv : echo '${PYENV_ROOT}/versions/bin/virtualenv'" \
+                   "pyvenv : false"
+  stub pyenv-hooks "virtualenv : echo '$HOOK_PATH'/virtualenv.bash"
+  stub pyenv-exec "echo PYENV_VERSION=\${PYENV_VERSION} \"\$@\""
+  stub pyenv-rehash "echo rehashed"
+
+  mkdir -p "${PYENV_ROOT}/versions/3.2.1"
+  run pyenv-virtualenv "3.2.1" venv
+
+  assert_success
+  assert_output <<-OUT
+before: ${PYENV_ROOT}/versions/venv
+PYENV_VERSION=3.2.1 virtualenv ${PYENV_ROOT}/versions/venv
+after: 0
+rehashed
+OUT
+}