How to use NoTestsRemainException class of org.junit.runner.manipulation package

if (someobject == null) {
    // Handle null here then move on.
}

class C {
    private final MyType mustBeSet;
    public C(MyType mything) {
       mustBeSet=Contract.notNull(mything);
    }
   private String name = "<unknown>";
   public void setName(String s) {
      name = Contract.notNull(s);
   }
}


class Contract {
    public static <T> T notNull(T t) { if (t == null) { throw new ContractException("argument must be non-null"); return t; }
}

Optional<Integer> possible = Optional.of(5);
possible.isPresent(); // returns true
possible.get(); // returns 5

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• Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
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• Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
• Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
• Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
• Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
• Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
• Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
• Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.

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