refactor: use explicit mocha imports (#416)

Author: JustinBeckwith

packages/google-cloud-translate/samples/.eslintrc.yml

@@ -1,4 +1,3 @@
 ---
 rules:
   no-console: off
-  no-warning-comments: off

packages/google-cloud-translate/samples/test/quickstart.test.js

@@ -15,6 +15,7 @@
 'use strict';
 
 const {assert} = require('chai');
+const {describe, it} = require('mocha');
 const cp = require('child_process');
 const path = require('path');
 

packages/google-cloud-translate/src/v3beta1/.eslintrc.yml

@@ -15,6 +15,7 @@
  */
 
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import {TranslationServiceClient} from '../src';
 
 const http2spy = require('http2spy');

packages/google-cloud-translate/system-test/.eslintrc.yml

@@ -18,6 +18,7 @@
 
 import * as protosTypes from '../protos/protos';
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 const translationserviceModule = require('../src');
 
 const FAKE_STATUS_CODE = 1;

packages/google-cloud-translate/system-test/translate.ts

@@ -18,6 +18,7 @@
 
 import * as protosTypes from '../protos/protos';
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 const translationserviceModule = require('../src');
 
 const FAKE_STATUS_CODE = 1;

packages/google-cloud-translate/test/.eslintrc.yml

@@ -21,6 +21,7 @@ import {
 } from '@google-cloud/common/build/src/util';
 import * as pfy from '@google-cloud/promisify';
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import * as extend from 'extend';
 import * as proxyquire from 'proxyquire';
 import * as r from 'request';