public function testHelperConstructorMethods() { $first = Rational::makeInteger($this->makeInteger(15)); $this->assertRational($first); $this->assertEquals($first->getNumerator()->getValue(), 15); $this->assertEquals($first->getDenominator()->getValue(), 1); $second = Rational::makeZero($this->makeInteger(5)); $this->assertRational($second); $this->assertEquals($second->getNumerator()->getValue(), 0); $this->assertEquals($second->getDenominator()->getValue(), 5); $third = Rational::makeZero(); $this->assertRational($third); $this->assertEquals($third->getNumerator()->getValue(), 0); $this->assertNotEquals($third->getDenominator()->getValue(), 0); }