add serialized data test case

Author: lesstif

.travis.yml

@@ -12,6 +12,7 @@ before_install:
   - travis_retry composer install --no-interaction --prefer-dist
 script:
   - phpunit --verbose tests/MockTest
+  - phpunit --verbose tests/SerializeTest
 
 matrix:
   allow_failures:

tests/SerializeTest.php

@@ -0,0 +1,28 @@
+<?php
+
+use JiraRestApi\Issue\IssueService;
+use JiraRestApi\Issue\IssueField;
+use JiraRestApi\Issue\Comment;
+use JiraRestApi\Issue\Reporter;
+use JiraRestApi\Issue\Transition;
+
+class SerializeTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @see https://github.com/lesstif/php-jira-rest-client/issues/18
+     */
+    public function testEmptyAssignee()
+    {
+        $r = new Reporter();
+
+        $r->name = '';
+        $r->emailAddress = '[email protected]';
+        $r->avatarUrls = '';
+
+        $d = $r->jsonSerialize();
+
+        //  passing a name value of '' then serialized array has 'name' key and empty value.
+        $this->assertEquals(true, array_key_exists('name', $d), 'Can\'t found "name" key.');
+        $this->assertEquals(false, array_key_exists('avatarUrls', $d));
+    }
+}