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JUnit 4 Test Class with annotations

Tuesday, June 8th, 2010

A simple example of a JUnit 4 Test class marked up with annotations.

import org.junit.*;
import static org.junit.Assert.*; 

public class SampleTest {
    private java.util.List emptyList; 

    /**
     * Sets up the test fixture.
     * (Called before every test case method.)
     */
    @Before
    public void setUp() {
        emptyList = new java.util.ArrayList();
    } 

    /**
     * Tears down the test fixture.
     * (Called after every test case method.)
     */
    @After
    public void tearDown() {
        emptyList = null;
    } 

    @Test
    public void testSomeBehavior() {
        assertEquals("Empty list should have 0 elements", 0, emptyList.size());
    } 

    @Test(expected=IndexOutOfBoundsException.class)
    public void testForException() {
        Object o = emptyList.get(0);
    }
}

Points of note

The static import of org.junit.Assert.*

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Tags: java, junit, testing
Posted in: Examples