Move example test suite to its own directory

tests/examples/test_plan.py

@@ -0,0 +1,38 @@
+# Copyright 2020 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import tftest
+import re
+import tempfile
+from pathlib import Path
+
+import marko
+
+MODULES_PATH = Path(__file__, '../../../modules/').resolve()
+VARIABLES_PATH = Path(__file__, '../variables.tf').resolve()
+EXPECTED_RESOURCES_RE = re.compile(r'# tftest:modules=(\d+):resources=(\d+)')
+
+
+def test_example(example_plan_runner, tmp_path, example):
+  (tmp_path / 'modules').symlink_to(MODULES_PATH)
+  (tmp_path / 'variables.tf').symlink_to(VARIABLES_PATH)
+  (tmp_path / 'main.tf').write_text(example)
+
+  match = EXPECTED_RESOURCES_RE.search(example)
+  expected_modules = int(match.group(1)) if match is not None else 1
+  expected_resources = int(match.group(2)) if match is not None else 1
+
+  plan, modules, resources = example_plan_runner(str(tmp_path))
+  assert expected_modules == len(modules)
+  assert expected_resources == len(resources)