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<?php
namespace Stack;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\HttpKernel\TerminableInterface;
class BuilderTest extends \PHPUnit_Framework_TestCase {
public function withoutMiddlewaresItShouldReturnOriginalResponse() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertInstanceOf('Stack\\StackedHttpKernel', $resolved);
$this
->assertSame('ok', $response
->getContent());
}
public function resolvedKernelShouldDelegateTerminateCalls() {
$app = $this
->getTerminableMock();
$stack = new Builder();
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = new Response('ok');
$resolved
->handle($request);
$resolved
->terminate($request, $response);
}
public function pushShouldReturnSelf() {
$stack = new Builder();
$this
->assertSame($stack, $stack
->push('Stack\\AppendA'));
}
public function pushShouldThrowOnInvalidInput() {
$this
->setExpectedException('InvalidArgumentException', 'Missing argument(s) when calling push');
$stack = new Builder();
$stack
->push();
}
public function unshiftShouldReturnSelf() {
$stack = new Builder();
$this
->assertSame($stack, $stack
->unshift('Stack\\AppendA'));
}
public function unshiftShouldThrowOnInvalidInput() {
$this
->setExpectedException('InvalidArgumentException', 'Missing argument(s) when calling unshift');
$stack = new Builder();
$stack
->unshift();
}
public function appendMiddlewareShouldAppendToBody() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$stack
->push('Stack\\AppendA');
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertSame('ok.A', $response
->getContent());
}
public function unshiftMiddlewareShouldPutMiddlewareBeforePushed() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$stack
->push('Stack\\Append', '2.');
$stack
->unshift('Stack\\Append', '1.');
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertSame('ok2.1.', $response
->getContent());
}
public function stackedMiddlewaresShouldWrapInReverseOrder() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$stack
->push('Stack\\AppendA');
$stack
->push('Stack\\AppendB');
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertSame('ok.B.A', $response
->getContent());
}
public function resolveShouldPassPushArgumentsToMiddlewareConstructor() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$stack
->push('Stack\\Append', '.foo');
$stack
->push('Stack\\Append', '.bar');
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertSame('ok.bar.foo', $response
->getContent());
}
public function resolveShouldCallSpecFactories() {
$app = $this
->getHttpKernelMock(new Response('ok'));
$stack = new Builder();
$stack
->push(function ($app) {
return new Append($app, '.foo');
});
$stack
->push(function ($app) {
return new Append($app, '.bar');
});
$resolved = $stack
->resolve($app);
$request = Request::create('/');
$response = $resolved
->handle($request);
$this
->assertSame('ok.bar.foo', $response
->getContent());
}
private function getHttpKernelMock(Response $response) {
$app = $this
->getMock('Symfony\\Component\\HttpKernel\\HttpKernelInterface');
$app
->expects($this
->any())
->method('handle')
->with($this
->isInstanceOf('Symfony\\Component\\HttpFoundation\\Request'))
->will($this
->returnValue($response));
return $app;
}
private function getTerminableMock() {
$app = $this
->getMock('Stack\\TerminableHttpKernel');
$app
->expects($this
->once())
->method('terminate')
->with($this
->isInstanceOf('Symfony\\Component\\HttpFoundation\\Request'), $this
->isInstanceOf('Symfony\\Component\\HttpFoundation\\Response'));
return $app;
}
}
abstract class TerminableHttpKernel implements HttpKernelInterface, TerminableInterface {
}
class Append implements HttpKernelInterface {
private $app;
private $appendix;
public function __construct(HttpKernelInterface $app, $appendix) {
$this->app = $app;
$this->appendix = $appendix;
}
public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true) {
$response = clone $this->app
->handle($request, $type, $catch);
$response
->setContent($response
->getContent() . $this->appendix);
return $response;
}
}
class AppendA extends Append {
public function __construct(HttpKernelInterface $app) {
parent::__construct($app, '.A');
}
}
class AppendB extends Append {
public function __construct(HttpKernelInterface $app) {
parent::__construct($app, '.B');
}
}