setMwGlobals( 'wgOut', $this->getMockWgOut() ); try { throw new ThrottledError(); } catch ( ThrottledError $e ) { $e->report(); $this->assertTrue( true ); } } private function getMockWgOut() { $mock = $this->getMockBuilder( OutputPage::class ) ->disableOriginalConstructor() ->getMock(); $mock->expects( $this->once() ) ->method( 'setStatusCode' ) ->with( 429 ); return $mock; } }