add test

test/virtualenv.bats

@@ -33,6 +33,9 @@ unstub_pyenv() {
   stub pyenv-exec "python -s -m ensurepip : false"
   stub pyenv-exec "python -s */get-pip.py : true"
   stub curl true
+  create_executable "${PYENV_VERSION}" "python-config"
+  create_executable "${PYENV_VERSION}" "python2-config"
+  create_executable "${PYENV_VERSION}" "python2.7-config"
 
   run pyenv-virtualenv "2.7.11" "venv"
 
@@ -41,8 +44,10 @@ PYENV_VERSION=2.7.11 virtualenv ${PYENV_ROOT}/versions/2.7.11/envs/venv
 Installing pip from https://bootstrap.pypa.io/pip/2.7/get-pip.py...
 rehashed
 OUT
-  assert [ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/pydoc" ]
   assert_success
+  for x in pydoc python-config python2-config python2.7-config; do
+    assert [[ -x "${PYENV_ROOT}/versions/2.7.11/envs/venv/bin/$x" ]]
+  done
 
   unstub_pyenv
   unstub pyenv-virtualenv-prefix