@covers PHPUnit_Framework_Constraint_IsNull @covers PHPUnit_Framework_Assert::isNull @covers PHPUnit_Framework_TestFailure::exceptionToString
public function testConstraintIsNull2() {
$constraint = PHPUnit_Framework_Assert::isNull();
try {
$constraint
->evaluate(0, 'custom message');
} catch (PHPUnit_Framework_ExpectationFailedException $e) {
$this
->assertEquals(<<<EOF
custom message
Failed asserting that 0 is null.
EOF
, PHPUnit_Framework_TestFailure::exceptionToString($e));
return;
}
$this
->fail();
}