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

If your test class extends PHPUnit_Framework_TestCase, you should be able to use setExpectedException method:

    /**
     * @param mixed  $exceptionName
     * @param string $exceptionMessage
     * @param int    $exceptionCode
     *
     * @since  Method available since Release 3.2.0
     */
    public function setExpectedException($exceptionName, $exceptionMessage = '', $exceptionCode = null)
    {
        $this->expectedException        = $exceptionName;
        $this->expectedExceptionMessage = $exceptionMessage;
        $this->expectedExceptionCode    = $exceptionCode;
    }

It allows you to assert an exception class alone, exception message and even exception code.