Can a JUnit test throw exception?

Can a JUnit test throw exception?

4 Answers. Yes it is completely fine, and if it does throw the exception the test will be considered as failed. You need to specify that the method throws an Exception even if you know that the specific case does not (this check is done by the compiler).

How do you cover catch exception in test class?

if you want your tests to cover some piece of code you have to make sure that the execution will run into this line….In this example:

1. public void someMethod(String a) {
2. try {
3. if (a. size() == 5) {
4. // do something.
5. }
6. } catch (Exception e) {
7. System. debug(‘something went wrong, exception: ‘ + e);
8. }

Can we use try catch in test class?

3 Answers. This answer addresses the try/catch part of your question only. If an exception is thrown from the code being tested (or the test code) then the test is a fail and that is normally what you want to happen. and as not all exceptions are catchable (e.g. governor limit ones) it will not even always execute.

What causes exception to be thrown from Test class?

The general answer is that your provided code is causing an exception to be thrown from your test class rather than from inside the code that you’re testing. You need to present your SUT with an environment where it is guaranteed to throw your exception.

How to test function that does not throw error?

We could write some more tests, such as…test it does not throw when called with the right arguments but I leave that to you. Thanks to Bond Akinmade and Austin Ogbuanya for guidance on my journey to becoming a world class software engineer.

Is there a test it does not throw when called?

We could write some more tests, such as…test it does not throw when called with the right arguments but I leave that to you. Thanks to Bond Akinmade and Austin Ogbuanya for guidance on my journey to becoming a world class software engineer. I look up to these guys because they are great mentors.

How to test for an exception in a trigger?

MyField = a value that will cause an error ; throw new MyException (‘ An exception should have been thrown by the trigger but was not .’); // 1. If we get to this line it means an error was not added and the test class should throw an exception here.