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https://github.com/Mibew/handlebars.php-helpers.git
synced 2025-03-14 09:44:11 +03:00
Add "repeat" helper
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@ -38,5 +38,6 @@ class Helpers extends BaseHelpers
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// String helpers
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$this->add('lowercase', new String\LowercaseHelper());
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$this->add('uppercase', new String\UppercaseHelper());
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$this->add('repeat', new String\RepeatHelper());
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}
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}
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@ -28,5 +28,6 @@ class Helpers extends BaseHelpers
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$this->add('lowercase', new LowercaseHelper());
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$this->add('uppercase', new UppercaseHelper());
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$this->add('repeat', new RepeatHelper());
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}
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}
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55
src/String/RepeatHelper.php
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55
src/String/RepeatHelper.php
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@ -0,0 +1,55 @@
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<?php
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/*
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* This file is part of Handlebars.php Helpers Set
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*
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* (c) Dmitriy Simushev <simushevds@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace JustBlackBird\HandlebarsHelpers\String;
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use Handlebars\Context;
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use Handlebars\Helper as HelperInterface;
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use Handlebars\Template;
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/**
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* Repeats content specified number of times.
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*
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* Usage:
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* ```handlebars
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* {{#repeat times}}content to repeat{{/repeat}}
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* ```
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*
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* Arguments:
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* - "times": How many times content must be repeated. This value must be
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* greater than or equal to 0 otherwise an exception will be thrown.
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class RepeatHelper implements HelperInterface
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{
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/**
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* {@inheritdoc}
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*/
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public function execute(Template $template, Context $context, $args, $source)
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{
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$parsed_args = $template->parseArguments($args);
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if (count($parsed_args) != 1) {
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throw new \InvalidArgumentException(
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'"repeat" helper expects exactly one argument.'
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);
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}
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$times = intval($context->get($parsed_args[0]));
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if ($times < 0) {
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throw new \InvalidArgumentException(
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'The first argument has to be greater than or equal to 0.'
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);
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}
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$string = $template->render($context);
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return str_repeat($string, $times);
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}
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}
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@ -50,6 +50,7 @@ class HelpersTest extends \PHPUnit_Framework_TestCase
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// String helpers
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array('lowercase', '\\JustBlackBird\\HandlebarsHelpers\\String\\LowercaseHelper'),
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array('uppercase', '\\JustBlackBird\\HandlebarsHelpers\\String\\UppercaseHelper'),
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array('repeat', '\\JustBlackBird\\HandlebarsHelpers\\String\\RepeatHelper'),
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);
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}
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}
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@ -40,6 +40,7 @@ class HelpersTest extends \PHPUnit_Framework_TestCase
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return array(
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array('lowercase', '\\JustBlackBird\\HandlebarsHelpers\\String\\LowercaseHelper'),
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array('uppercase', '\\JustBlackBird\\HandlebarsHelpers\\String\\UppercaseHelper'),
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array('repeat', '\\JustBlackBird\\HandlebarsHelpers\\String\\RepeatHelper'),
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);
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}
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}
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92
tests/String/RepeatHelperTest.php
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92
tests/String/RepeatHelperTest.php
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@ -0,0 +1,92 @@
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<?php
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/*
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* This file is part of Handlebars.php Helpers Set
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*
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* (c) Dmitriy Simushev <simushevds@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace JustBlackBird\HandlebarsHelpers\Tests\String;
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use JustBlackBird\HandlebarsHelpers\String\RepeatHelper;
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/**
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* Test class for "repeat" helper.
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class RepeatHelperTest extends \PHPUnit_Framework_TestCase
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{
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/**
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* Tests that strings are repeated properly.
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*
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* @dataProvider repeatProvider
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*/
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public function testRepeat($string, $times, $result)
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{
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$helpers = new \Handlebars\Helpers(array('repeat' => new RepeatHelper()));
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$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
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$this->assertEquals(
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$engine->render(
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'{{#repeat times}}{{str}}{{/repeat}}',
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array('times' => $times, 'str' => $string)
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),
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$result
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);
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}
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/**
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* A data provider for testRepeat method.
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*/
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public function repeatProvider()
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{
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return array(
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array('+', 0, ''),
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array('+', 3, '+++'),
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array('', 3, ''),
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);
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}
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/**
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* Tests that exception is thrown if wrong number of arguments is used.
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*
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* @expectedException InvalidArgumentException
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* @dataProvider wrongArgumentsSetProvider
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*/
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public function testArgumentsCount($template)
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{
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$helpers = new \Handlebars\Helpers(array('repeat' => new RepeatHelper()));
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$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
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$engine->render($template, array());
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}
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/**
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* A data provider for testArgumentsCount method.
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*/
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public function wrongArgumentsSetProvider()
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{
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return array(
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// Not enough arguments
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array('{{#repeat}}{{/repeat}}'),
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// Too much arguments
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array('{{#repeat 10 "ANOTHER ARG"}}{{/repeat}}'),
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);
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}
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/**
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* Tests that exception is thrown if arguments are invalid.
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*
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* @expectedException InvalidArgumentException
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*/
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public function testInvalidArguments()
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{
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$helpers = new \Handlebars\Helpers(array('repeat' => new RepeatHelper()));
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$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
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$engine->render('{{#repeat -10}}+{{/repeat}}', array());
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}
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}
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