public function testUnclosedTag() {
$resource = $this
->getMock('Assetic\\Factory\\Resource\\ResourceInterface');
$resource
->expects($this
->once())
->method('getContent')
->will($this
->returnValue(file_get_contents(__DIR__ . '/templates/unclosed_tag.twig')));
$formulae = $this->loader
->load($resource);
$this
->assertEquals(array(), $formulae);
}