Is there a way in TestNG to validate something but not fail the test case at the end (not soft assert)?

Question

I'm using TestNG to run a test and I've been using the Assert.assert statements in Java.

Now there are a few places where I would like to validate whether a function returned true or not. If it didn't then I don't want to fail the test but would rather have it log a message and continue.

In effect, I'm trying something like this:

boolean return1 = funct1();
if(bool){
System.out.println("funct1 returned a false. An error occurred which needs to be investigated later but the test will continue for now")
}

I could of course do this via the code that I wrote but is there a more elegant method of doing this via TestNG?

How can I make some assertions without failing the test? SoftAssert seems to fail the test at the end when I call assertAll().

Answer 1

You can catch the assert True,

if you read the documentation of asserttrue:

https://www.javadoc.io/doc/org.testng/testng/6.8.17/org/testng/Assert.html#assertEquals(boolean,%20boolean,%20java.lang.String)

you can see that asserttrue throws an error and not an exception. So you have to capture the Throwable.

ANd you can print it to console using System.err or use logger as Joao mentioned

    try {

        assertTrue(false," Test tfailed");

    } catch (Throwable e) {

        System.err.println(e);
   //     Logger logger = Logger.getLogger("");
   //   logger.log(Level.WARNING, e.toString());

    }

You can also use softAssert

        SoftAssert a= new SoftAssert();

        a.assertTrue(1==2, "safasfhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
        a.assertTrue(1==2, "sad");
        a.assertTrue(1==2, "test");
        a.assertTrue(1==2, "3");

        try {

            a.assertAll();

        } catch (Throwable  e) {

            System.err.println(e);
        //  Logger logger = Logger.getLogger("");
       //   logger.log(Level.WARNING, e.toString());

        }

Output:

Answer 2

Java has a logging feature built-in.

You would probably log a Severe or Warning message.

Example:

Logger logger = Logger.getLogger(MyClass.class.getName());
logger.log(Level.SEVERE, "My message");

Naturally, you may want to wrap this logging alongside assertions.

class Verifier {
  ...
  public void verifyEquals(Object obj1, Object obj2) {
      try{
        assert obj1.equals(obj2);
      } catch (AssertionError e) {
        logger.log(obj1 + " is not equal to " + obj2);
      }
  } 
}