diff --git a/tests/EnumTest.php b/tests/EnumTest.php
old mode 100644
new mode 100755
index 9591d73..dff2069
--- a/tests/EnumTest.php
+++ b/tests/EnumTest.php
@@ -294,4 +294,26 @@ private function assertJsonEqualsJson($json1, $json2)
     {
         $this->assertJsonStringEqualsJsonString($json1, $json2);
     }
+
+    public function testSerialize()
+    {
+        // split string for Pretty CI: "Line exceeds 120 characters"
+        $bin = '4f3a33303a224d79434c6162735c54657374735c456e756d5c456e756d4669787'.
+            '4757265223a313a7b733a383a22002a0076616c7565223b733a333a22666f6f223b7d';
+
+        $this->assertEquals($bin, bin2hex(serialize(EnumFixture::FOO())));
+    }
+
+    public function testUnserialize()
+    {
+        // split string for Pretty CI: "Line exceeds 120 characters"
+        $bin = '4f3a33303a224d79434c6162735c54657374735c456e756d5c456e756d4669787'.
+            '4757265223a313a7b733a383a22002a0076616c7565223b733a333a22666f6f223b7d';
+
+        /* @var $value EnumFixture */
+        $value = unserialize(pack('H*', $bin));
+
+        $this->assertEquals(EnumFixture::FOO, $value->getValue());
+        $this->assertTrue(EnumFixture::FOO()->equals($value));
+    }
 }