Add tests for GCSUrlReader

Signed-off-by: Martina Iglesias Fernandez <martina@roadie.io>

packages/backend-common/src/reading/GcsUrlReader.test.ts

@@ -0,0 +1,113 @@
+/*
+ * Copyright 2020 Spotify AB
+ *
+ * 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 { ConfigReader, JsonObject } from '@backstage/config';
+import { getVoidLogger } from '../logging';
+import { ReadTreeResponseFactory } from './tree';
+import { GcsUrlReader } from './GcsUrlReader';
+import { UrlReaderPredicateTuple } from './types';
+
+describe('GcsUrlReader', () => {
+  const createReader = (config: JsonObject): UrlReaderPredicateTuple[] => {
+    return GcsUrlReader.factory({
+      config: new ConfigReader(config),
+      logger: getVoidLogger(),
+      treeResponseFactory: ReadTreeResponseFactory.create({
+        config: new ConfigReader({}),
+      }),
+    });
+  };
+
+  it('does not create a reader without the gcs field', () => {
+    const entries = createReader({
+      integrations: {},
+    });
+    expect(entries).toHaveLength(0);
+  });
+
+  it('creates a reader with credentials correctly configured', () => {
+    const entries = createReader({
+      integrations: {
+        gcs: [
+          {
+            privateKey: '--- BEGIN KEY ---- fakekey --- END KEY ---',
+            clientEmail: 'someone@example.com',
+          },
+          {
+            host: 'proxy.storage.cloud.google.com',
+            privateKey: '--- BEGIN KEY ---- fakekey2 --- END KEY ---',
+            clientEmail: 'someone2@example.com',
+          },
+        ],
+      },
+    });
+    expect(entries).toHaveLength(2);
+  });
+
+  it('does not create a reader if the privateKey is missing', () => {
+    const entries = createReader({
+      integrations: {
+        gcs: [
+          {
+            clientEmail: 'someone@example.com',
+          },
+        ],
+      },
+    });
+    expect(entries).toHaveLength(0);
+  });
+
+  it('does not create a reader if the clientEmail is missing', () => {
+    const entries = createReader({
+      integrations: {
+        gcs: [
+          {
+            privateKey:
+              '-----BEGIN PRIVATE KEY----- fakekey -----END PRIVATE KEY-----',
+          },
+        ],
+      },
+    });
+    expect(entries).toHaveLength(0);
+  });
+
+  it('predicates', () => {
+    const readers = createReader({
+      integrations: {
+        gcs: [
+          {
+            privateKey:
+              '-----BEGIN PRIVATE KEY----- fakekey -----END PRIVATE KEY-----',
+            clientEmail: 'someone@example.com',
+          },
+        ],
+      },
+    });
+    const predicate = readers[0].predicate;
+    expect(predicate(new URL('https://storage.cloud.google.com'))).toBe(true);
+    expect(
+      predicate(
+        new URL(
+          'https://storage.cloud.google.com/team1/service1/catalog-info.yaml',
+        ),
+      ),
+    ).toBe(true);
+    expect(predicate(new URL('https://storage2.cloud.google.com'))).toBe(false);
+    expect(predicate(new URL('https://cloud.google.com'))).toBe(false);
+    expect(predicate(new URL('https://google.com'))).toBe(false);
+    expect(predicate(new URL('https://a.example.com/test'))).toBe(false);
+  });
+});