Added integration test for download object using stream

Author: haphan

samples/objectstore/v1/objects/download_stream.php

@@ -0,0 +1,19 @@
+<?php
+
+require 'vendor/autoload.php';
+
+$openstack = new OpenStack\OpenStack([
+    'authUrl' => '{authUrl}',
+    'region'  => '{region}',
+    'user'    => [
+        'id'       => '{userId}',
+        'password' => '{password}'
+    ],
+    'scope'   => ['project' => ['id' => '{projectId}']]
+]);
+
+/** @var \GuzzleHttp\Stream\Stream $stream */
+$stream = $openstack->objectStoreV1()
+                    ->getContainer('{containerName}')
+                    ->getObject('{objectName}')
+                    ->download(['requestOptions' => ['stream' => true]]);

tests/integration/ObjectStore/v1/CoreTest.php

@@ -153,6 +153,17 @@ public function objects()
         $this->assertInstanceOf(StreamInterface::class, $stream);
         $this->assertEquals(1000, $stream->getSize());
 
+        $this->logStep('Downloading object using streaming');
+        /** @var StreamInterface $stream */
+        require_once $this->sampleFile($replacements, 'objects/download_stream.php');
+        $this->assertInstanceOf(StreamInterface::class, $stream);
+
+        $body = '';
+        while (!$stream->eof()) {
+            $body .= $stream->read(64);
+        }
+        $this->assertEquals(1000, strlen($body));
+
         $this->logStep('Get object');
         require_once $this->sampleFile($replacements, 'objects/get.php');