Neos\Flow\Tests\Unit\Http\BrowserTest::automaticHeadersAreSetOnEachRequest PHP Method

    public function automaticHeadersAreSetOnEachRequest()
    {
        $requestEngine = $this->createMock(Client\RequestEngineInterface::class);
        $requestEngine->expects($this->any())->method('sendRequest')->will($this->returnValue(new Http\Response()));
        $this->browser->setRequestEngine($requestEngine);
        $this->browser->addAutomaticRequestHeader('X-Test-Header', 'Acme');
        $this->browser->addAutomaticRequestHeader('Content-Type', 'text/plain');
        $this->browser->request('http://localhost/foo');
        $this->assertTrue($this->browser->getLastRequest()->hasHeader('X-Test-Header'));
        $this->assertSame('Acme', $this->browser->getLastRequest()->getHeader('X-Test-Header'));
        $this->assertContains('text/plain', $this->browser->getLastRequest()->getHeader('Content-Type'));
    }