[11.9] Add support for Jobs::artifactByJobId (GitLabPHP#734)

Author: donkidd

src/Api/Jobs.php

@@ -169,6 +169,18 @@ public function artifactByRefName($project_id, string $ref_name, string $job_nam
         ])->getBody();
     }
 
+    /**
+     * @param int|string $project_id
+     * @param int        $job_id
+     * @param string     $artifact_path
+     *
+     * @return StreamInterface
+     */
+    public function artifactByJobId($project_id, $job_id, string $artifact_path)
+    {
+        return $this->getAsResponse('projects/'.self::encodePath($project_id).'/jobs/'.self::encodePath($job_id).'/artifacts/'.self::encodePath($artifact_path))->getBody();
+    }
+
     /**
      * @param int|string $project_id
      * @param int        $job_id

tests/Api/JobsTest.php

@@ -119,6 +119,23 @@ public function shouldGetArtifacts(): void
         $this->assertEquals('foobar', $api->artifacts(1, 3)->getContents());
     }
 
+    /**
+     * @test
+     */
+    public function shouldGetArtifactsByJobId(): void
+    {
+        $returnedStream = new Response(200, [], 'foobar');
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('getAsResponse')
+            ->with('projects/1/jobs/3/artifacts/artifact_path')
+            ->will($this->returnValue($returnedStream))
+        ;
+
+        $this->assertEquals('foobar', $api->artifactByJobId(1, 3, 'artifact_path')->getContents());
+    }
+
     /**
      * @test
      */