New quickstarts. (#226)

* New quickstarts.

* Address comments.

Author: jmdobry

speech/package.json

@@ -11,10 +11,10 @@
   "dependencies": {
     "@google-cloud/speech": "^0.1.1",
     "node-record-lpcm16": "^0.1.4",
-    "yargs": "^5.0.0"
+    "yargs": "^6.0.0"
   },
   "devDependencies": {
-    "mocha": "^3.0.2"
+    "mocha": "^3.1.0"
   },
   "engines": {
     "node": ">=4.3.2"

speech/quickstart.js

@@ -0,0 +1,48 @@
+/**
+ * Copyright 2016, Google, Inc.
+ * 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.
+ */
+
+'use strict';
+
+// [START speech_quickstart]
+// Imports the Google Cloud client library
+const Speech = require('@google-cloud/speech');
+
+// Your Google Cloud Platform project ID
+const projectId = 'YOUR_PROJECT_ID';
+
+// Instantiates a client
+const speechClient = Speech({
+  projectId: projectId
+});
+
+// The name of the audio file to transcribe
+const fileName = './resources/audio.raw';
+
+// The audio file's encoding and sample rate
+const options = {
+  encoding: 'LINEAR16',
+  sampleRate: 16000
+};
+
+// Detects speech in the audio file
+speechClient.recognize(fileName, options, (err, result) => {
+  if (err) {
+    console.error(err);
+    return;
+  }
+
+  console.log(`Transcription: ${result}`);
+});
+// [END speech_quickstart]

speech/system-test/quickstart.test.js

@@ -0,0 +1,58 @@
+/**
+ * Copyright 2016, Google, Inc.
+ * 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.
+ */
+
+'use strict';
+
+const path = require(`path`);
+const proxyquire = require(`proxyquire`).noPreserveCache();
+const speech = proxyquire(`@google-cloud/speech`, {})();
+
+const fileName = path.join(__dirname, `../resources/audio.raw`);
+const config = {
+  encoding: `LINEAR16`,
+  sampleRate: 16000
+};
+
+describe(`speech:quickstart`, () => {
+  let speechMock, SpeechMock;
+
+  it(`should detect speech`, (done) => {
+    const expectedFileName = `./resources/audio.raw`;
+    const expectedText = `how old is the Brooklyn Bridge`;
+
+    speechMock = {
+      recognize: (_fileName, _config, _callback) => {
+        assert.equal(_fileName, expectedFileName);
+        assert.deepEqual(_config, config);
+        assert.equal(typeof _callback, `function`);
+
+        speech.recognize(fileName, config, (err, transcription, apiResponse) => {
+          _callback(err, transcription, apiResponse);
+          assert.ifError(err);
+          assert.equal(transcription, expectedText);
+          assert.notEqual(apiResponse, undefined);
+          assert.equal(console.log.calledOnce, true);
+          assert.deepEqual(console.log.firstCall.args, [`Transcription: ${expectedText}`]);
+          done();
+        });
+      }
+    };
+    SpeechMock = sinon.stub().returns(speechMock);
+
+    proxyquire(`../quickstart`, {
+      '@google-cloud/speech': SpeechMock
+    });
+  });
+});

speech/test/quickstart.test.js

@@ -0,0 +1,49 @@
+/**
+ * Copyright 2016, Google, Inc.
+ * 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.
+ */
+
+'use strict';
+
+const proxyquire = require(`proxyquire`).noCallThru();
+
+const config = {
+  encoding: 'LINEAR16',
+  sampleRate: 16000
+};
+
+describe(`speech:quickstart`, () => {
+  let speechMock, SpeechMock;
+  const error = new Error(`error`);
+  const fileName = `./resources/audio.raw`;
+
+  before(() => {
+    speechMock = {
+      recognize: sinon.stub().yields(error)
+    };
+    SpeechMock = sinon.stub().returns(speechMock);
+  });
+
+  it(`should handle error`, () => {
+    proxyquire(`../quickstart`, {
+      '@google-cloud/speech': SpeechMock
+    });
+
+    assert.equal(SpeechMock.calledOnce, true);
+    assert.deepEqual(SpeechMock.firstCall.args, [{ projectId: 'YOUR_PROJECT_ID' }]);
+    assert.equal(speechMock.recognize.calledOnce, true);
+    assert.deepEqual(speechMock.recognize.firstCall.args.slice(0, -1), [fileName, config]);
+    assert.equal(console.error.calledOnce, true);
+    assert.deepEqual(console.error.firstCall.args, [error]);
+  });
+});