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<?php

/**

* 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.

*/

namespace Google\Cloud\Samples\Speech\Tests;

use PHPUnit\Framework\TestCase;

use Symfony\Component\Console\Tester\CommandTester;

class speechTest extends TestCase

{

protected static $hasCredentials;

protected static $bucketName;

public static function setUpBeforeClass()

{

$path = getenv('GOOGLE_APPLICATION_CREDENTIALS');

self::$hasCredentials = $path && file_exists($path) &&

filesize($path) > 0;

}

public function testBase64Audio()

{

$audioFile = __DIR__ . '/data/audio32KHz.raw';

$base64Audio = require __DIR__ . '/../src/base64_encode_audio.php';

$audioFileResource = fopen($audioFile, 'r');

$this->assertEquals(base64_decode($base64Audio), stream_get_contents($audioFileResource));

}

/** @dataProvider provideTranscribe */

public function testTranscribe($command, $audioFile, $encoding, $sampleRate, $requireGrpc = false)

{

if ($requireGrpc && !extension_loaded('grpc')) {

self::markTestSkipped('Must enable grpc extension.');

}

if (!self::$hasCredentials) {

$this->markTestSkipped('No application credentials were found.');

}

if (!self::$bucketName && in_array($command, ['transcribe-gcs', 'transcribe-async-gcs'])) {

$this->markTestSkipped('You must set the GOOGLE_BUCKET_NAME environment variable.');

}

$output = $this->runCommand($command, [

'audio-file' => $audioFile,

'--encoding' => $encoding,

'--sample-rate' => $sampleRate,

]);

$this->assertContains('how old is the Brooklyn Bridge', $output);

// Check for the word time offsets

if (in_array($command, ['transcribe-words', 'transcribe-async-words'])) {

$this->assertRegexp('/start: .*s, end: .*s/', $output);

}

}

public function provideTranscribe()

{

self::$bucketName = getenv('GOOGLE_BUCKET_NAME');

return [

['transcribe', __DIR__ . '/data/audio32KHz.raw', 'LINEAR16', '32000'],

['transcribe', __DIR__ . '/data/audio32KHz.flac', 'FLAC', '32000'],

['transcribe-gcs', 'gs://' . self::$bucketName . '/audio32KHz.raw', 'LINEAR16', '32000'],

['transcribe-async-gcs', 'gs://' . self::$bucketName . '/audio32KHz.raw', 'LINEAR16', '32000'],

['transcribe-words', __DIR__ . '/data/audio32KHz.flac', 'FLAC', '32000'],

['transcribe-async-words', __DIR__ . '/data/audio32KHz.raw', 'LINEAR16', '32000'],

['transcribe-stream', __DIR__ . '/data/audio32KHz.raw', 'LINEAR16', '32000', true],

];

}

private function runCommand($commandName, $args = [])

{

$application = require __DIR__ . '/../speech.php';

$command = $application->get($commandName);

$commandTester = new CommandTester($command);

ob_start();

$commandTester->execute(

$args,

['interactive' => false]);

return ob_get_clean();

}

}