public function testError()
{
$math = new Math();
// no input
try {
$math->add();
} catch (\Exception $e) {
$this->assertEquals('Please provide numbers to add', $e->getMessage());
}
// no input
try {
$math->subtract();
} catch (\Exception $e) {
$this->assertEquals('Please provide numbers to subtract', $e->getMessage());
}
// no input
try {
$math->multiply();
} catch (\Exception $e) {
$this->assertEquals('Please provide numbers to multiply', $e->getMessage());
}
// no input
try {
$math->divide();
} catch (\Exception $e) {
$this->assertEquals('Please provide numbers to divide', $e->getMessage());
}
//invalid input
try {
$math->setA('adf');
} catch (\Exception $e) {
$this->assertEquals('Invalid input', $e->getMessage());
}
}
