/**
* Test route sets and gets middleware
*
* Pre-conditions:
* Route instantiated
*
* Post-conditions:
* Case A: Middleware set as callable, not array
* Case B: Middleware set after other middleware already set
* Case C: Middleware set as array of callables
* Case D: Middleware set as a callable array
* Case E: Middleware is invalid; throws InvalidArgumentException
*/
public function testRouteMiddleware()
{
$callable1 = function () {
};
$callable2 = function () {
};
//Case A
$r1 = new Slim_Route('/foo', function () {
});
$r1->setMiddleware($callable1);
$mw = $r1->getMiddleware();
$this->assertInternalType('array', $mw);
$this->assertEquals(1, count($mw));
//Case B
$r1->setMiddleware($callable2);
$mw = $r1->getMiddleware();
$this->assertEquals(2, count($mw));
//Case C
$r2 = new Slim_Route('/foo', function () {
});
$r2->setMiddleware(array($callable1, $callable2));
$mw = $r2->getMiddleware();
$this->assertInternalType('array', $mw);
$this->assertEquals(2, count($mw));
//Case D
$r3 = new Slim_Route('/foo', function () {
});
$r3->setMiddleware(array($this, 'callableTestFunction'));
$mw = $r3->getMiddleware();
$this->assertInternalType('array', $mw);
$this->assertEquals(1, count($mw));
//Case E
try {
$r3->setMiddleware('sdjfsoi788');
$this->fail('Did not catch InvalidArgumentException when setting invalid route middleware');
} catch (InvalidArgumentException $e) {
}
}
/**
* Dispatch route
*
* This method invokes the route's callable. If middleware is
* registered for the route, each callable middleware is invoked in
* the order specified.
*
* This method is smart about trailing slashes on the route pattern.
* If the route's pattern is defined with a trailing slash, and if the
* current request URI does not have a trailing slash but otherwise
* matches the route's pattern, a Slim_Exception_RequestSlash
* will be thrown triggering an HTTP 301 Permanent Redirect to the same
* URI _with_ a trailing slash. This Exception is caught in the
* `Slim::call` loop. If the route's pattern is defined without a
* trailing slash, and if the current request URI does have a trailing
* slash, the route will not be matched and a 404 Not Found
* response will be sent if no subsequent matching routes are found.
*
* @param Slim_Route $route The route object
* @return bool Was route callable invoked successfully?
* @throws Slim_Exception_RequestSlash
*/
public function dispatch(Slim_Route $route)
{
if (substr($route->getPattern(), -1) === '/' && substr($this->resourceUri, -1) !== '/') {
throw new Slim_Exception_RequestSlash();
}
//Invoke middleware
foreach ($route->getMiddleware() as $mw) {
if (is_callable($mw)) {
call_user_func($mw);
}
}
//Invoke callable
if (is_callable($route->getCallable())) {
call_user_func_array($route->getCallable(), array_values($route->getParams()));
return true;
}
return false;
}
