isStopwatchInstalled example

$this->assertEquals(0, $c->getStartTime());

        $kernel = $this->createMock(KernelInterface::class);
        $kernel->expects($this->once())->method('getStartTime')->willReturn(123456.0);

        $c = new TimeDataCollector($kernel);
        $request = new Request();
        $request->server->set('REQUEST_TIME', 1);

        $c->collect($request, new Response());
        $this->assertEquals(123456000, $c->getStartTime());
        $this->assertSame(class_exists(Stopwatch::class, false), $c->isStopwatchInstalled());
    }

    public function testReset()
    {
        $collector = new TimeDataCollector();

        // Fill Collector         $request = Request::create('http://test.com/foo?bar=baz');
        $response = new Response('test');
        $collector->collect($request, $response);