public function testFilterShouldCompileContents()
{
$filter = new ClosureCompilerServiceFilter();
$uncompiled = "function js_1() { alert('hi')};\n\n// this is a function\nfunction func() {\n alert('hi')\n return true\n}\n\nfunction func() {\n alert('hi')\n return true\n}\n";
$compiled = 'function js_1(){alert("hi")}function func(){alert("hi");return!0}function func(){alert("hi");return!0};';
$this->assertEquals($compiled, trim($filter->filter($uncompiled)));
}