1 files changed, 28 insertions, 0 deletions
diff --git a/src/php/tests/unit_tests/CallTest.php b/src/php/tests/unit_tests/CallTest.php
index 3b697b50c3..1170a440fa 100755
--- a/src/php/tests/unit_tests/CallTest.php
+++ b/src/php/tests/unit_tests/CallTest.php
@@ -91,4 +91,32 @@ class CallTest extends PHPUnit_Framework_TestCase
     {
         $this->assertTrue(is_string($this->call->getPeer()));
     }
+
+    public function testCancel()
+    {
+      $this->assertNull($this->call->cancel());
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testInvalidMetadataKey()
+    {
+        $batch = [
+            'invalid' => ['key1' => 'value1'],
+        ];
+        $result = $this->call->startBatch($batch);
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    public function testInvalidMetadataInnerValue()
+    {
+        $batch = [
+            Grpc\OP_SEND_INITIAL_METADATA => ['key1' => 'value1'],
+        ];
+        $result = $this->call->startBatch($batch);
+    }
+
 }