How do I test for an exact Exception message, rather than a substring, with PHPUnit?

Question

According to the PHPUnit Documentation on @expectedExceptionMessage, the string must only be a substring of the actual Exception thrown.

In

Answer 1

I tried many ways to test exceptions and finally I found that the best way to test Exceptions is try-catch blocks. I suggest you to throw exceptions with exception code and then test if exception with this code is thrown. For example suppose that your exception code is 101

if(count($errors) > 0) throw new \Exception(trim(implode(" ", $errors)), 101);

For example suppose that your exception code is 101

try {
    $myClass->validate(1, 2, 4, 3);
    $this->fail( "Exception with 101 code should be thrown" );
} catch (Exception $e) {
    $this->assertEquals( 101, $e->getCode());
}