public function testSimpleDivision()
{
$actualResult = AwesomeCalculator::divide(2, 5);
$expectedResult = 0.4;
$tolerance = 1.0E-9;
$this->assertLessThan($expectedResult + $tolerance, $actualResult);
$this->assertGreaterThan($expectedResult - $tolerance, $actualResult);
}
public function testICantAddRealGood()
{
$actualResult = AwesomeCalculator::add(2, 2);
$expectedResult = 5;
$this->assertEquals($expectedResult, $actualResult, 'This test fails because I am bad at math.');
}
