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Implement ifBetweenClosed helper
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@ -33,6 +33,7 @@ class Helpers extends BaseHelpers
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$this->add('ifLess', new IfLessHelper());
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$this->add('ifMore', new IfMoreHelper());
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$this->add('ifBetween', new IfBetweenHelper());
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$this->add('ifBetweenClosed', new IfBetweenClosedHelper());
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$this->add('unlessEqual', new UnlessEqualHelper());
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}
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}
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48
src/Comparison/IfBetweenClosedHelper.php
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48
src/Comparison/IfBetweenClosedHelper.php
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@ -0,0 +1,48 @@
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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\Comparison;
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use Handlebars\Helper as HelperInterface;
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/**
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* Conditional helper that checks if one value is between two another values.
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*
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* Borders of the interval are included into comparison. That's why in cases
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* where the value under comparision is equal to one of the borders the result
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* of "between closed" operator is true.
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*
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* Example of usage:
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* ```handlebars
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* {{#ifBetweenClosed value leftBorder rightBorder}}
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* The first argument is between borders.
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* {{else}}
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* The first argument is not between the borders.
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* {{/ifBetweenClosed}}
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* ```
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class IfBetweenClosedHelper extends AbstractComparisonHelper implements HelperInterface
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{
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/**
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* {@inheritdoc}
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*/
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protected function evaluateCondition($args)
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{
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if (count($args) != 3) {
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throw new \InvalidArgumentException(
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'"ifBetweenClosed" helper expects exactly three arguments.'
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);
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}
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return ($args[0] >= $args[1]) && ($args[0] <= $args[2]);
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}
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}
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@ -45,6 +45,7 @@ class HelpersTest extends \PHPUnit_Framework_TestCase
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array('ifLess', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfLessHelper'),
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array('ifMore', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfMoreHelper'),
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array('ifBetween', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfBetweenHelper'),
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array('ifBetweenClosed', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfBetweenClosedHelper'),
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array('unlessEqual', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\UnlessEqualHelper'),
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);
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}
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93
tests/Comparison/IfBetweenClosedHelperTest.php
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93
tests/Comparison/IfBetweenClosedHelperTest.php
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@ -0,0 +1,93 @@
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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\Comparison;
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use JustBlackBird\HandlebarsHelpers\Comparison\IfBetweenClosedHelper;
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/**
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* Test class for "ifBetweenClosed" helper.
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*
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* @author Dmitriy Simushev <simushevds@gmail.com>
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*/
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class IfBetweenClosedHelperTest extends \PHPUnit_Framework_TestCase
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{
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/**
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* Tests conditions work as expected.
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*
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* @dataProvider conditionProvider
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*/
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public function testCondition($value, $left, $right, $is_between)
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{
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$helpers = new \Handlebars\Helpers(array('ifBetweenClosed' => new IfBetweenClosedHelper()));
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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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'{{#ifBetweenClosed value left right}}true{{else}}false{{/ifBetweenClosed}}',
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array(
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'value' => $value,
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'left' => $left,
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'right' => $right,
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)
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),
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$is_between ? 'true' : 'false'
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);
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}
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/**
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* A data provider for testCondition method.
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*/
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public function conditionProvider()
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{
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return array(
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// The value is less than left border.
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array(2, 10, 12, false),
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// The value equals to the left border.
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array(0, 0, 42, true),
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// The value equals to the right border.
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array(9, 0, 9, true),
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// The value is more than the right border.
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array(75, 10, 12, false),
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// The value is between borders.
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array(58, 11, 134, true),
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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 wrongArgumentsProvider
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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('ifBetweenClosed' => new IfBetweenClosedHelper()));
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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 wrongArgumentsProvider()
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{
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return array(
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// Not enough arguments
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array('{{#ifBetweenClosed}}yes{{else}}no{{/ifBetweenClosed}}'),
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// Still not enough arguments
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array('{{#ifBetweenClosed 1}}yes{{else}}no{{/ifBetweenClosed}}'),
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array('{{#ifBetweenClosed 1 2}}yes{{else}}no{{/ifBetweenClosed}}'),
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// Too much arguments
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array('{{#ifBetweenClosed 1 2 3 4}}yes{{else}}no{{/ifBetweenClosed}}'),
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);
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}
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}
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