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Filename : IsArrayWithSizeTest.php

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<?php
namespace Hamcrest\Arrays;

use Hamcrest\AbstractMatcherTest;

class IsArrayWithSizeTest extends AbstractMatcherTest
{

    protected function createMatcher()
    {
        return IsArrayWithSize::arrayWithSize(equalTo(2));
    }

    public function testMatchesWhenSizeIsCorrect()
    {
        $this->assertMatches(arrayWithSize(equalTo(3)), array(1, 2, 3), 'correct size');
        $this->assertDoesNotMatch(arrayWithSize(equalTo(2)), array(1, 2, 3), 'incorrect size');
    }

    public function testProvidesConvenientShortcutForArrayWithSizeEqualTo()
    {
        $this->assertMatches(arrayWithSize(3), array(1, 2, 3), 'correct size');
        $this->assertDoesNotMatch(arrayWithSize(2), array(1, 2, 3), 'incorrect size');
    }

    public function testEmptyArray()
    {
        $this->assertMatches(emptyArray(), array(), 'correct size');
        $this->assertDoesNotMatch(emptyArray(), array(1), 'incorrect size');
    }

    public function testHasAReadableDescription()
    {
        $this->assertDescription('an array with size <3>', arrayWithSize(equalTo(3)));
        $this->assertDescription('an empty array', emptyArray());
    }
}