Implement ifBetweenClosed helper

This commit is contained in:
Dmitriy Simushev 2016-08-18 19:14:49 +00:00
parent 2f9cf57e58
commit dfe567feac
4 changed files with 143 additions and 0 deletions

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@ -33,6 +33,7 @@ class Helpers extends BaseHelpers
$this->add('ifLess', new IfLessHelper());
$this->add('ifMore', new IfMoreHelper());
$this->add('ifBetween', new IfBetweenHelper());
$this->add('ifBetweenClosed', new IfBetweenClosedHelper());
$this->add('unlessEqual', new UnlessEqualHelper());
}
}

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@ -0,0 +1,48 @@
<?php
/*
* This file is part of Handlebars.php Helpers Set
*
* (c) Dmitriy Simushev <simushevds@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace JustBlackBird\HandlebarsHelpers\Comparison;
use Handlebars\Helper as HelperInterface;
/**
* Conditional helper that checks if one value is between two another values.
*
* Borders of the interval are included into comparison. That's why in cases
* where the value under comparision is equal to one of the borders the result
* of "between closed" operator is true.
*
* Example of usage:
* ```handlebars
* {{#ifBetweenClosed value leftBorder rightBorder}}
* The first argument is between borders.
* {{else}}
* The first argument is not between the borders.
* {{/ifBetweenClosed}}
* ```
*
* @author Dmitriy Simushev <simushevds@gmail.com>
*/
class IfBetweenClosedHelper extends AbstractComparisonHelper implements HelperInterface
{
/**
* {@inheritdoc}
*/
protected function evaluateCondition($args)
{
if (count($args) != 3) {
throw new \InvalidArgumentException(
'"ifBetweenClosed" helper expects exactly three arguments.'
);
}
return ($args[0] >= $args[1]) && ($args[0] <= $args[2]);
}
}

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@ -45,6 +45,7 @@ class HelpersTest extends \PHPUnit_Framework_TestCase
array('ifLess', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfLessHelper'),
array('ifMore', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfMoreHelper'),
array('ifBetween', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfBetweenHelper'),
array('ifBetweenClosed', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\IfBetweenClosedHelper'),
array('unlessEqual', '\\JustBlackBird\\HandlebarsHelpers\\Comparison\\UnlessEqualHelper'),
);
}

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@ -0,0 +1,93 @@
<?php
/*
* This file is part of Handlebars.php Helpers Set
*
* (c) Dmitriy Simushev <simushevds@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace JustBlackBird\HandlebarsHelpers\Tests\Comparison;
use JustBlackBird\HandlebarsHelpers\Comparison\IfBetweenClosedHelper;
/**
* Test class for "ifBetweenClosed" helper.
*
* @author Dmitriy Simushev <simushevds@gmail.com>
*/
class IfBetweenClosedHelperTest extends \PHPUnit_Framework_TestCase
{
/**
* Tests conditions work as expected.
*
* @dataProvider conditionProvider
*/
public function testCondition($value, $left, $right, $is_between)
{
$helpers = new \Handlebars\Helpers(array('ifBetweenClosed' => new IfBetweenClosedHelper()));
$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
$this->assertEquals(
$engine->render(
'{{#ifBetweenClosed value left right}}true{{else}}false{{/ifBetweenClosed}}',
array(
'value' => $value,
'left' => $left,
'right' => $right,
)
),
$is_between ? 'true' : 'false'
);
}
/**
* A data provider for testCondition method.
*/
public function conditionProvider()
{
return array(
// The value is less than left border.
array(2, 10, 12, false),
// The value equals to the left border.
array(0, 0, 42, true),
// The value equals to the right border.
array(9, 0, 9, true),
// The value is more than the right border.
array(75, 10, 12, false),
// The value is between borders.
array(58, 11, 134, true),
);
}
/**
* Tests that exception is thrown if wrong number of arguments is used.
*
* @expectedException InvalidArgumentException
* @dataProvider wrongArgumentsProvider
*/
public function testArgumentsCount($template)
{
$helpers = new \Handlebars\Helpers(array('ifBetweenClosed' => new IfBetweenClosedHelper()));
$engine = new \Handlebars\Handlebars(array('helpers' => $helpers));
$engine->render($template, array());
}
/**
* A data provider for testArgumentsCount method.
*/
public function wrongArgumentsProvider()
{
return array(
// Not enough arguments
array('{{#ifBetweenClosed}}yes{{else}}no{{/ifBetweenClosed}}'),
// Still not enough arguments
array('{{#ifBetweenClosed 1}}yes{{else}}no{{/ifBetweenClosed}}'),
array('{{#ifBetweenClosed 1 2}}yes{{else}}no{{/ifBetweenClosed}}'),
// Too much arguments
array('{{#ifBetweenClosed 1 2 3 4}}yes{{else}}no{{/ifBetweenClosed}}'),
);
}
}