refactor: use explicit mocha imports (#496)

Author: JustinBeckwith

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

@@ -15,6 +15,7 @@
 'use strict';
 
 const assert = require('assert');
+const {describe, it} = require('mocha');
 const path = require('path');
 const speech = require(path.join(process.cwd(), 'build', 'src'));
 const fs = require('fs');

packages/google-cloud-speech/system-test/speech_system_test.js

@@ -15,6 +15,7 @@
 'use strict';
 
 const assert = require('assert');
+const {describe, it} = require('mocha');
 const path = require('path');
 const speech = require(path.join(process.cwd(), 'build', 'src'));
 const fs = require('fs');

packages/google-cloud-speech/system-test/speech_system_test_v1.js

@@ -15,6 +15,7 @@
 'use strict';
 
 const assert = require('assert');
+const {describe, it} = require('mocha');
 const path = require('path');
 const speech = require(path.join(process.cwd(), 'build', 'src'));
 const fs = require('fs');

packages/google-cloud-speech/system-test/speech_system_test_v1p1beta1.js

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import * as speech from '../src';
 import * as fs from 'fs';
 import * as path from 'path';

packages/google-cloud-speech/system-test/speech_typescript_system_test.ts

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import * as speech from '../src';
 import * as fs from 'fs';
 import * as path from 'path';

packages/google-cloud-speech/system-test/speech_typescript_system_test_v1.ts

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import * as speech from '../src';
 import * as fs from 'fs';
 import * as path from 'path';

packages/google-cloud-speech/system-test/speech_typescript_system_test_v1p1beta1.ts

@@ -1,5 +1,3 @@
 ---
-env:
-  mocha: true
 rules:
   node/no-unpublished-require: off

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

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

packages/google-cloud-speech/test/gapic-speech-v1.ts

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

packages/google-cloud-speech/test/gapic-speech-v1p1beta1.ts

@@ -17,6 +17,7 @@
 'use strict';
 
 import * as assert from 'assert';
+import {describe, it} from 'mocha';
 import * as sinon from 'sinon';
 import * as stream from 'stream';