using assertions java code example

Example: java assertions

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

public class AssertionExample {

    /**
     * The assertionExample function
     * uses multiple assertions for the purpose of example;
     * Usually in one method it is recommended to have 1 assertion;
     */
    @Test
    public void assertionExample()
    {
        Assertions.assertEquals(2+2,4);

        Assertions.assertNotEquals(6+3,10);

        Assertions.assertTrue("Radu".length()==4);

        String tester = null;

        Assertions.assertThrows(NullPointerException.class,()->tester.equals("emptyString"));
    }
}

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Java Example