/**
* Custom helper test
*/
public function testCustomHelper()
{
$loader = new \Handlebars\Loader\StringLoader();
$engine = new \Handlebars\Handlebars(array('loader' => $loader));
$engine->addHelper('test', function () {
return 'Test helper is called';
});
$this->assertEquals('Test helper is called', $engine->render('{{#test}}', array()));
$this->assertEquals('Test helper is called', $engine->render('{{test}}', array()));
$engine->addHelper('test2', function ($template, $context, $arg) {
return 'Test helper is called with ' . $arg;
});
$this->assertEquals('Test helper is called with a b c', $engine->render('{{#test2 a b c}}', array()));
$this->assertEquals('Test helper is called with a b c', $engine->render('{{test2 a b c}}', array()));
$engine->addHelper('renderme', function () {
return new \Handlebars\String("{{test}}");
});
$this->assertEquals('Test helper is called', $engine->render('{{#renderme}}', array()));
$engine->addHelper('dontrenderme', function () {
return "{{test}}";
});
$this->assertEquals('{{test}}', $engine->render('{{#dontrenderme}}', array()));
$engine->addHelper('markupHelper', function () {
return '<strong>Test</strong>';
});
$this->assertEquals('<strong>Test</strong>', $engine->render('{{{markupHelper}}}', array()));
$this->assertEquals('<strong>Test</strong>', $engine->render('{{markupHelper}}', array()));
$engine->addHelper('safeStringTest', function () {
return new \Handlebars\SafeString('<strong>Test</strong>');
});
$this->assertEquals('<strong>Test</strong>', $engine->render('{{safeStringTest}}', array()));
$engine->addHelper('argsTest', function ($template, $context, $arg) {
$parsedArgs = $template->parseArguments($arg);
return implode(' ', $parsedArgs);
});
$this->assertEquals("a \"b\" c", $engine->render('{{{argsTest "a" "\\"b\\"" \'c\'}}}', array()));
// This is just a fun thing to do :)
$that = $this;
$engine->addHelper('stopToken', function ($template, $context, $arg) use($that) {
/** @var $template \Handlebars\Template */
$parsedArgs = $template->parseArguments($arg);
$first = array_shift($parsedArgs);
$last = array_shift($parsedArgs);
if ($last == 'yes') {
$template->setStopToken($first);
$that->assertEquals($first, $template->getStopToken());
$buffer = $template->render($context);
$template->setStopToken(false);
$template->discard($context);
} else {
$template->setStopToken($first);
$that->assertEquals($first, $template->getStopToken());
$template->discard($context);
$template->setStopToken(false);
$buffer = $template->render($context);
}
return $buffer;
});
$this->assertEquals("Used", $engine->render('{{# stopToken fun no}}Not used{{ fun }}Used{{/stopToken }}', array()));
$this->assertEquals("Not used", $engine->render('{{# stopToken any yes}}Not used{{ any }}Used{{/stopToken }}', array()));
$this->setExpectedException('InvalidArgumentException');
$engine->getHelpers()->call('invalid', $engine->loadTemplate(''), new \Handlebars\Context(), '', '');
}
