JUnit AssertTrue - Java

JUnit is a popular testing framework for Java. It provides a set of annotations and APIs to write and execute unit tests. One useful method in JUnit is assertTrue(), which is used to check if a condition is true. In this article, we will explore how to use assertTrue() in JUnit.

Syntax

public static void assertTrue(boolean condition)

The assertTrue() method takes a boolean value as a parameter. It throws an AssertionError if the value is false.

Example

Let's look at an example of how to use assertTrue() in JUnit:

import org.junit.Test;
import static org.junit.Assert.assertTrue;

public class ExampleTest {

   @Test
   public void testCheckAge() {
      int age = 25;
      assertTrue(age > 18);
   }
}

In the above example, we have a test method called testCheckAge(). It checks if the age variable is greater than 18 using assertTrue(). If the condition is false, it will throw an AssertionError.

Conclusion

assertTrue() is a handy method in JUnit to check if a condition is true. It helps in writing effective unit tests for your Java code. Make sure to use it wisely while writing your unit tests.