/**
* Test half
*
* @author Tom Haskins-Vaughan <*****@*****.**>
* @since 0.1.0
*/
public function testHalf()
{
$half = new Fraction(1, 2);
$this->assertEquals('1/2', (string) $half);
$this->assertSame(1, $half->getNumerator());
$this->assertSame(2, $half->getDenominator());
}
/**
* isSameValueAs
*
* ValueObject comparison
*
* @author Christopher Tatro <*****@*****.**>
* @since 1.1.0
*
* @param Fraction $fraction
*
* @return bool
*/
public function isSameValueAs(Fraction $fraction)
{
if ($this->getNumerator() != $fraction->getNumerator()) {
return false;
}
if ($this->getDenominator() != $fraction->getDenominator()) {
return false;
}
return true;
}
/**
* Subtract a given fraction from this fraction
*
* @author Tom Haskins-Vaughan <*****@*****.**>
* @since 0.1.0
*
* @param Fraction $fraction
*
* @return Fraction
*/
public function subtract(Fraction $fraction)
{
$numerator = $this->getNumerator() * $fraction->getDenominator() - $fraction->getNumerator() * $this->getDenominator();
$denominator = $this->getDenominator() * $fraction->getDenominator();
return new static($numerator, $denominator);
}