test: add test for x-goog-api-client (#243)

packages/google-cloud-resourcemanager/package.json

@@ -42,8 +42,8 @@
     "predocs-test": "npm run docs"
   },
   "dependencies": {
-    "@google-cloud/paginator": "^2.0.0",
     "@google-cloud/common": "^2.0.0",
+    "@google-cloud/paginator": "^2.0.0",
     "@google-cloud/promisify": "^1.0.0"
   },
   "devDependencies": {
@@ -65,7 +65,7 @@
     "nyc": "^14.0.0",
     "power-assert": "^1.4.4",
     "prettier": "^1.7.4",
-    "proxyquire": "^2.0.0",
+    "proxyquire": "^2.1.3",
     "source-map-support": "^0.5.6",
     "typescript": "~3.5.0",
     "uuid": "^3.0.1"

packages/google-cloud-resourcemanager/src/project.ts

@@ -1,5 +1,5 @@
 /*!
- * Copyright 2015 Google Inc. All Rights Reserved.
+ * Copyright 2015 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

packages/google-cloud-resourcemanager/test/headers.ts

@@ -0,0 +1,68 @@
+/**
+ * Copyright 2019 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 * as assert from 'assert';
+import * as proxyquire from 'proxyquire';
+
+const error = Error('not implemented');
+
+interface Request {
+  headers: {
+    [key: string]: string;
+  };
+}
+
+describe('headers', () => {
+  const requests: Request[] = [];
+  const {Resource} = proxyquire('../../', {
+    'google-auth-library': {
+      GoogleAuth: class {
+        async getProjectId() {
+          return 'foo-project';
+        }
+        async getClient() {
+          return class {
+            async request() {
+              return {};
+            }
+          };
+        }
+        getCredentials() {
+          return {};
+        }
+        async authorizeRequest(req: Request) {
+          requests.push(req);
+          throw error;
+        }
+      },
+      '@global': true,
+    },
+  });
+
+  it('populates x-goog-api-client header', async () => {
+    const resource = new Resource();
+    try {
+      const [projects] = await resource.getProjects();
+    } catch (err) {
+      if (err !== error) throw err;
+    }
+    assert.ok(
+      /^gl-node\/[0-9]+\.[0-9]+\.[-.\w]+ gccl\/[0-9]+\.[0-9]+\.[-.\w]+$/.test(
+        requests[0].headers['x-goog-api-client']
+      )
+    );
+  });
+});