Add php 7.2 version check (GoogleCloudPlatform#413)

* Add php 7.2 version check

* Fix pattern in PHP 7.2 version test

* Temporarily serialize integration tests to isolate test failure

* Revert "Temporarily serialize integration tests to isolate test failure"

This reverts commit 09071b5.

* Add explicit .gcloudignore file so the php-test.yaml builder file will be used in tests

.gcloudignore

@@ -0,0 +1,3 @@
+**/vendor
+.php_cs.cache
+deb-package-builder/pkg/

check-versions/tests/VersionTest.php

@@ -50,7 +50,15 @@ public static function setUpBeforeClass()
  self::$versions['php71'] = $matches[1];
  } else {
  self::$versions['php71'] =
- 'Failed to detect the latest PHP70 version';
+ 'Failed to detect the latest PHP71 version';
+ }
+
+ $pattern = '/PHP (7\.2\.\d+)/';
+ if (preg_match($pattern, $body, $matches)) {
+ self::$versions['php72'] = $matches[1];
+ } else {
+ self::$versions['php72'] =
+ 'Failed to detect the latest PHP72 version';
  }
 
  exec('apt-get update');
@@ -88,4 +96,15 @@ public function testPHP71Version()
  $this->fail('Failed to detect the current php71 version');
  }
  }
+
+ public function testPHP72Version()
+ {
+ $output = exec('apt-cache madison gcp-php72');
+ $pattern = '/(7\.2\.\d+)/';
+ if (preg_match($pattern, $output, $matches)) {
+ $this->assertEquals($matches[1], self::$versions['php72']);
+ } else {
+ $this->fail('Failed to detect the current php72 version');
+ }
+ }
 }