Assert: assertNull(String message, Object value)

 

import junit.framework.TestCase;

public class TestLargest extends TestCase {
  public TestLargest(String name) {
    super(name);
  }

  public void testEmpty() {
      assertNull("it should be null", null);

  }
}

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Assert: assertNull(String message, Object value) : TestCase « junit.framework « Java by API

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