How can I write effective unit tests in Java?

How can I write effective unit tests in Java?

To write effective unit tests in Java, start by using a testing framework like JUnit. Focus on testing small units of code, ensure tests are independent, and use meaningful names for your test methods.

What are some best practices for naming test methods?

Best practices for naming test methods include using descriptive names that indicate the expected behavior, following a consistent naming convention, and including the scenario and expected outcome in the name.

How do I handle exceptions in my unit tests?

You can handle exceptions in your unit tests by using assertions to check for expected exceptions. In JUnit, you can use the @Test(expected = Exception.class) annotation or try-catch blocks to verify that the correct exceptions are thrown.

Can you give me an example of a unit test for a simple method?

Sure! Here's a simple example:

@Test
public void testAdd() {
    Calculator calc = new Calculator();
    assertEquals(5, calc.add(2, 3));
}