Missing issue timeline api

doc/README.md

@@ -27,6 +27,7 @@ v3 APIs:
   * [Comments](issue/comments.md)
   * [Labels](issue/labels.md)
   * [Milestones](issue/milestones.md)
+  * [Timeline](issue/timeline.md)
 * [Meta](meta.md)
 * Miscellaneous
   * [Emojis](miscellaneous/emojis.md)

doc/issue/timeline.md

@@ -0,0 +1,17 @@
+## Issues / Timeline API
+[Back to the "Issues API"](../issues.md) | [Back to the navigation](../README.md)
+
+Wraps [GitHub Issue Timeline API](http://developer.github.com/v3/issues/timeline/).
+
+This api is currently only available to developers in Early Access. To access the API during the Early Access period,
+you must provide a custom media type in the Accept header.
+
+```php
+$client->api('ìssue')->timeline()->configure();
+```
+
+### List events for an issue
+
+```php
+$events = $client->api('issue')->timeline()->all('KnpLabs', 'php-github-api', 123);
+```

lib/Github/Api/Issue.php

@@ -7,6 +7,7 @@
 use Github\Api\Issue\Events;
 use Github\Api\Issue\Labels;
 use Github\Api\Issue\Milestones;
+use Github\Api\Issue\Timeline;
 use Github\Exception\MissingArgumentException;
 
 /**
@@ -245,4 +246,16 @@ public function assignees()
     {
         return new Assignees($this->client);
     }
+
+    /**
+     * List all events.
+     *
+     * @link https://developer.github.com/v3/issues/timeline/
+     *
+     * @return Timeline
+     */
+    public function timeline()
+    {
+        return new Timeline($this->client);
+    }
 }

lib/Github/Api/Issue/Timeline.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Github\Api\Issue;
+
+use Github\Api\AbstractApi;
+use Github\Api\AcceptHeaderTrait;
+
+class Timeline extends AbstractApi
+{
+    use AcceptHeaderTrait;
+
+    public function configure()
+    {
+        $this->acceptHeaderValue = 'application/vnd.github.mockingbird-preview';
+
+        return $this;
+    }
+
+    /**
+     * Get all events for a specific issue.
+     *
+     * @link https://developer.github.com/v3/issues/timeline/#list-events-for-an-issue
+     * @param string $username
+     * @param string $repository
+     * @param int    $issue
+     *
+     * @return array
+     */
+    public function all($username, $repository, $issue)
+    {
+        return $this->get('/repos/'.rawurlencode($username).'/'.rawurlencode($repository).'/issues/'.rawurlencode($issue).'/timeline');
+    }
+}

test/Github/Tests/Api/Issue/TimelineTest.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Github\Tests\Api\Issue;
+
+use Github\Tests\Api\TestCase;
+
+class TimelineTest extends TestCase
+{
+    /**
+     * @test
+     */
+    public function shouldGetIssueEvents()
+    {
+        $expectedValue = array(
+            'event1',
+            'event2',
+        );
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('get')
+            ->with('/repos/KnpLabs/php-github-api/issues/123/timeline', array())
+            ->will($this->returnValue($expectedValue));
+
+        $this->assertEquals($expectedValue, $api->all('KnpLabs', 'php-github-api', 123));
+    }
+
+
+    /**
+     * @return string
+     */
+    protected function getApiClass()
+    {
+        return \Github\Api\Issue\Timeline::class;
+    }
+}

test/Github/Tests/Api/IssueTest.php

@@ -242,6 +242,16 @@ public function shouldGetMilestonesApiObject()
         $this->assertInstanceOf(\Github\Api\Issue\Milestones::class, $api->milestones());
     }
 
+    /**
+     * @test
+     */
+    public function shouldGetTimelineApiObject()
+    {
+        $api = $this->getApiMock();
+
+        $this->assertInstanceOf(\Github\Api\Issue\Timeline::class, $api->timeline());
+    }
+
     /**
      * @test
      */