PHP: fix flaky tests

1 files changed, 4 insertions, 2 deletions

diff --git a/src/php/tests/unit_tests/CallTest.php b/src/php/tests/unit_tests/CallTest.php
index c5e1890a98..be1d77fe7a 100644
--- a/src/php/tests/unit_tests/CallTest.php
+++ b/src/php/tests/unit_tests/CallTest.php
@@ -24,12 +24,14 @@ class CallTest extends PHPUnit_Framework_TestCase
     public static function setUpBeforeClass()
     {
         self::$server = new Grpc\Server([]);
-        self::$port = self::$server->addHttp2Port('0.0.0.0:0');
+        self::$port = self::$server->addHttp2Port('0.0.0.0:53000');
     }
 
     public function setUp()
     {
-        $this->channel = new Grpc\Channel('localhost:'.self::$port, []);
+        $this->channel = new Grpc\Channel('localhost:'.self::$port, [
+            'force_new' => true,
+        ]);
         $this->call = new Grpc\Call($this->channel,
                                     '/foo',
                                     Grpc\Timeval::infFuture());