test(*): Introduce Jest testing

Introduce Jest testing into the project. Added tests to firestore-send-email

Author: Salakar

.gitignore

@@ -9,3 +9,4 @@ mods-test-data/key.json
 build
 *.iml
 local.properties
+coverage

auth-mailchimp-sync/__tests__/__snapshots__/functions.test.ts.snap

@@ -0,0 +1,10 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`extension functions configuration detected from environment variables 1`] = `
+Object {
+  "location": "europe-west2",
+  "mailchimpApiKey": "123456-789",
+  "mailchimpAudienceId": "123456789",
+  "mailchimpContactStatus": "pending",
+}
+`;

auth-mailchimp-sync/__tests__/functions.test.ts

@@ -0,0 +1,26 @@
+const consoleLogSpy = jest.spyOn(console, "log").mockImplementation();
+const consoleWarnSpy = jest.spyOn(console, "warn").mockImplementation();
+
+import functionsConfig from "../functions/src/config";
+import { obfuscatedConfig } from "../functions/src/logs";
+import * as exportedFunctions from "../functions/src";
+
+describe("extension", () => {
+  beforeEach(() => {});
+
+  test("functions configuration detected from environment variables", async () => {
+    expect(functionsConfig).toMatchSnapshot();
+  });
+
+  test("functions configuration is logged on initialize", async () => {
+    expect(consoleLogSpy).toBeCalledWith(
+      "Initializing extension with configuration",
+      obfuscatedConfig
+    );
+  });
+
+  test("functions are exported", async () => {
+    expect(exportedFunctions.addUserToList).toBeInstanceOf(Function);
+    expect(exportedFunctions.removeUserFromList).toBeInstanceOf(Function);
+  });
+});

auth-mailchimp-sync/functions/lib/logs.js

@@ -16,7 +16,7 @@
  */
 Object.defineProperty(exports, "__esModule", { value: true });
 const config_1 = require("./config");
-const obfuscatedConfig = Object.assign({}, config_1.default, { mailchimpApiKey: "********" });
+exports.obfuscatedConfig = Object.assign({}, config_1.default, { mailchimpApiKey: "<omitted>" });
 exports.complete = () => {
     console.log("Completed execution of extension");
 };
@@ -27,7 +27,7 @@ exports.errorRemoveUser = (err) => {
     console.error("Error when removing user from Mailchimp audience", err);
 };
 exports.init = () => {
-    console.log("Initializing extension with configuration", obfuscatedConfig);
+    console.log("Initializing extension with configuration", exports.obfuscatedConfig);
 };
 exports.initError = (err) => {
     console.error("Error when initializing extension", err);
@@ -36,7 +36,7 @@ exports.mailchimpNotInitialized = () => {
     console.error("Mailchimp was not initialized correctly, check for errors in the logs");
 };
 exports.start = () => {
-    console.log("Started execution of extension with configuration", obfuscatedConfig);
+    console.log("Started execution of extension with configuration", exports.obfuscatedConfig);
 };
 exports.userAdded = (userId, audienceId, mailchimpId, status) => {
     console.log(`Added user: ${userId} with status '${status}' to Mailchimp audience: ${audienceId} with Mailchimp ID: ${mailchimpId}`);

auth-mailchimp-sync/functions/src/logs.ts

@@ -16,9 +16,9 @@
 
 import config from "./config";
 
-const obfuscatedConfig = {
+export const obfuscatedConfig = {
   ...config,
-  mailchimpApiKey: "********",
+  mailchimpApiKey: "<omitted>",
 };
 
 export const complete = () => {

auth-mailchimp-sync/jest.config.js

@@ -0,0 +1,12 @@
+const packageJson = require("./package.json");
+
+module.exports = {
+  name: packageJson.name,
+  displayName: packageJson.name,
+  rootDir: "./",
+  preset: "ts-jest",
+  globalSetup: "./jest.setup.js",
+  globalTeardown: "./jest.teardown.js"
+};
+
+

auth-mailchimp-sync/jest.setup.js

@@ -0,0 +1,8 @@
+module.exports = async function() {
+  process.env = Object.assign(process.env, {
+    LOCATION: "europe-west2",
+    MAILCHIMP_API_KEY: "123456-789",
+    MAILCHIMP_AUDIENCE_ID: "123456789",
+    MAILCHIMP_CONTACT_STATUS: "pending",
+  });
+};

auth-mailchimp-sync/jest.teardown.js

@@ -0,0 +1,6 @@
+module.exports = async function() {
+  delete process.env.LOCATION;
+  delete process.env.MAILCHIMP_API_KEY;
+  delete process.env.MAILCHIMP_AUDIENCE_ID;
+  delete process.env.MAILCHIMP_CONTACT_STATUS;
+};

auth-mailchimp-sync/tsconfig.json

@@ -1,12 +1,9 @@
 {
+  "extends": "../tsconfig.json",
   "compilerOptions": {
-    "lib": ["es6"],
-    "module": "commonjs",
-    "noImplicitReturns": true,
-    "outDir": "functions/lib",
-    "sourceMap": false,
-    "target": "es6"
+    "outDir": "functions/lib"
   },
-  "compileOnSave": true,
-  "include": ["functions/src"]
+  "include": [
+    "functions/src"
+  ]
 }

delete-user-data/jest.config.js

@@ -0,0 +1,8 @@
+const packageJson = require('./package.json');
+
+module.exports = {
+  name: packageJson.name,
+  displayName: packageJson.name,
+  rootDir: './',
+  preset: 'ts-jest',
+};