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						public function testCustomDetector() {
		Environment::is(function($request) {
			if ($request->env('HTTP_HOST') == 'localhost') {
				return 'development';
			}
			if ($request->env('HTTP_HOST') == 'staging.server') {
				return 'test';
			}
			return 'production';
		});

		$request = new MockRequest(array('HTTP_HOST' => 'localhost'));
		Environment::set($request);
		$this->assertTrue(Environment::is('development'));

		$request = new MockRequest(array('HTTP_HOST' => 'lappy.local'));
		Environment::set($request);
		$this->assertTrue(Environment::is('production'));

		$request = new MockRequest(array('HTTP_HOST' => 'staging.server'));
		Environment::set($request);
		$this->assertTrue(Environment::is('test'));

		$request = new MockRequest(array('HTTP_HOST' => 'test.local'));
		Environment::set($request);
		$this->assertTrue(Environment::is('production'));
	}