How to get assert to print a success message?

Question

How to get assert to print a success message?

Here is an assertion that I have written

assert.equal(0,0,"Test Passed);

I was hoping that it would print the message Test passed but it is not happening. However if the assertion fails the message is displayed along with the error.

So is there any way to print the message if the test is successful?

node.js
unit-testing

Answer 1

According to the source, the message is only printed when the assertion fails.

assert.equal = function equal(actual, expected, message) {
  if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};

Just for completeness here is the definition of fail.

function fail(actual, expected, message, operator, stackStartFunction) {
  throw new assert.AssertionError({
    message: message,
    actual: actual,
    expected: expected,
    operator: operator,
    stackStartFunction: stackStartFunction
  });
}