code: function equal(actual, expected, message) {
      if (actual == expected) {
        this.pass(message);
      }
      else {
        this.fail({
          actual: actual,
          expected: expected,
          message: message,
          operator: "=="
        });
      }
    }
docs: The equality assertion tests shallow, coercive equality with `==`.
  @example
  assert.equal(1, 1, "one is one");