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Filename : IsDoubleTest.php

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<?php
namespace Hamcrest\Type;

class IsDoubleTest extends \Hamcrest\AbstractMatcherTest
{

    protected function createMatcher()
    {
        return \Hamcrest\Type\IsDouble::doubleValue();
    }

    public function testEvaluatesToTrueIfArgumentMatchesType()
    {
        assertThat((float) 5.2, floatValue());
        assertThat((double) 5.3, doubleValue());
    }

    public function testEvaluatesToFalseIfArgumentDoesntMatchType()
    {
        assertThat(false, not(doubleValue()));
        assertThat(5, not(doubleValue()));
        assertThat('foo', not(doubleValue()));
    }

    public function testHasAReadableDescription()
    {
        $this->assertDescription('a double', doubleValue());
    }

    public function testDecribesActualTypeInMismatchMessage()
    {
        $this->assertMismatchDescription('was null', doubleValue(), null);
        $this->assertMismatchDescription('was a string "foo"', doubleValue(), 'foo');
    }
}