Fix lint errors for database, firestore, https tests (#470)

* fix lint errors for database, firestore, https tests * consistency changes and missed lint errors, separate out mockrequest class * format strings

Author: thechenky

spec/fixtures/mockrequest.ts

@@ -0,0 +1,82 @@
+import * as jwt from 'jsonwebtoken';
+import * as _ from 'lodash';
+import * as nock from 'nock';
+import * as mocks from '../fixtures/credential/key.json';
+
+// MockRequest mocks an https.Request.
+export class MockRequest {
+ public method: 'POST' | 'GET' | 'OPTIONS' = 'POST';
+
+ constructor(
+ readonly body: any,
+ readonly headers: { [name: string]: string }
+ ) {
+ // This block intentionally left blank.
+ }
+
+ public header(name: string): string {
+ return this.headers[name.toLowerCase()];
+ }
+}
+
+// Creates a mock request with the given data and content-type.
+export function mockRequest(
+ data: any,
+ contentType: string = 'application/json',
+ context: {
+ authorization?: string;
+ instanceIdToken?: string;
+ } = {}
+) {
+ const body: any = {};
+ if (!_.isUndefined(data)) {
+ body.data = data;
+ }
+
+ const headers = {
+ 'content-type': contentType,
+ authorization: context.authorization,
+ 'firebase-instance-id-token': context.instanceIdToken,
+ origin: 'example.com',
+ };
+
+ return new MockRequest(body, headers);
+}
+
+export const expectedResponseHeaders = {
+ 'Access-Control-Allow-Origin': 'example.com',
+ Vary: 'Origin',
+};
+
+/**
+ * Mocks out the http request used by the firebase-admin SDK to get the key for
+ * verifying an id token.
+ */
+export function mockFetchPublicKeys(): nock.Scope {
+ const mockedResponse = { [mocks.key_id]: mocks.public_key };
+ const headers = {
+ 'cache-control': 'public, max-age=1, must-revalidate, no-transform',
+ };
+
+ return nock('https://www.googleapis.com:443')
+ .get('/robot/v1/metadata/x509/securetoken@system.gserviceaccount.com')
+ .reply(200, mockedResponse, headers);
+}
+
+/**
+ * Generates a mocked Firebase ID token.
+ */
+export function generateIdToken(projectId: string): string {
+ const claims = {};
+ const options = {
+ audience: projectId,
+ expiresIn: 60 * 60, // 1 hour in seconds
+ issuer: 'https://securetoken.google.com/' + projectId,
+ subject: mocks.user_id,
+ algorithm: 'RS256',
+ header: {
+ kid: mocks.key_id,
+ },
+ };
+ return jwt.sign(claims, mocks.private_key, options);
+}