use new iam variable in container registry

tests/modules/container_registry/__init__.py

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+# 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.

tests/modules/container_registry/fixture/main.tf

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+/**
+ * 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.
+ */
+
+module "test" {
+  source     = "../../../../modules/container-registry"
+  project_id = "my-project"
+  location   = var.location
+  iam = {
+    "roles/storage.admin" = ["user:me@example.com"]
+  }
+}

tests/modules/container_registry/fixture/variables.tf

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+/**
+ * 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.
+ */
+
+variable "location" {
+  type    = string
+  default = "EU"
+}

tests/modules/container_registry/test_plan.py

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+# 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 os
+import pytest
+
+
+FIXTURES_DIR = os.path.join(os.path.dirname(__file__), 'fixture')
+
+
+@pytest.fixture
+def resources(plan_runner):
+  _, resources = plan_runner(FIXTURES_DIR)
+  return resources
+
+
+def test_resource_count(resources):
+  "Test number of resources created."
+  assert len(resources) == 2
+
+
+def test_iam(resources):
+  "Test IAM binding resources."
+  bindings = [r['values'] for r in resources if r['type']
+              == 'google_storage_bucket_iam_binding']
+  assert len(bindings) == 1
+  assert bindings[0]['role'] == 'roles/storage.admin'