Rule: ApexAssertionsShouldIncludeMessage

Message

Apex test assert statement should make use of the message parameter.

Description

The second parameter of System.assert/third parameter of System.assertEquals/System.assertNotEquals is a message. Having a second/third parameter provides more information and makes it easier to debug the test failure and improves the readability of test output.

Priority

5 (was 3)

Example

@isTest
public class Foo {
    @isTest
    static void methodATest() {
        System.assertNotEquals('123', o.StageName); // not good
        System.assertEquals('123', o.StageName, 'Opportunity stageName is wrong.'); // good
        System.assert(o.isClosed); // not good
        System.assert(o.isClosed, 'Opportunity is not closed.'); // good
    }
}