Fixed a broken test for Language API quickstart (GoogleCloudPlatform#208)

Author: Takashi Matsuo

.travis.yml

@@ -20,9 +20,8 @@ language: php
 
 matrix:
   include:
-    - php: 5.5
-      env: RUN_DEVSERVER_TESTS=true RUN_CS_FIXER=true
     - php: 5.6
+      env: RUN_DEVSERVER_TESTS=true RUN_CS_FIXER=true
     - php: 7.0
 
 env:

language/quickstart/composer.json

@@ -1,6 +1,6 @@
 {
   "require": {
     "php": ">=5.4",
-    "google/cloud": "0.10"
+    "google/cloud": "~0.11"
   }
 }

language/quickstart/composer.lock

@@ -32,20 +32,26 @@ public function testQuickstart()
         file_put_contents($file, $contents);
 
         // Invoke quickstart.php
+
+        ob_start();
         $sentiment = include $file;
+        $output = ob_get_clean();
 
         // Make sure it looks correct
         $this->assertTrue(is_array($sentiment));
         $this->assertArrayHasKey('polarity', $sentiment);
         $this->assertArrayHasKey('magnitude', $sentiment);
         $this->assertEquals(1, $sentiment['polarity']);
-        $this->assertEquals(.6, $sentiment['magnitude']);
-
-        $expectedOutput = <<<EOF
-Text: Hello, world!
-Sentiment: 1, 0.6
-EOF;
+        $this->assertTrue(0.1 < $sentiment['magnitude']);
+        $this->assertTrue($sentiment['magnitude'] < 1.0);
 
-        $this->expectOutputString($expectedOutput);
+        
+        $expectedPatterns = array(
+            '/Text: Hello, world!/',
+            '/Sentiment: \\d, \\d.\\d/',
+        );
+        foreach ($expectedPatterns as $pattern) {
+            $this->assertRegExp($pattern, $output);
+        }
     }
 }