validationtest.java

junit

package org.junit.tests.validation;

import static org.junit.Assert.assertEquals;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.JUnitCore;
import org.junit.runner.Request;
import org.junit.runner.Result;

public class ValidationTest {
	public static class WrongBeforeClass {
		@BeforeClass
		protected int a() {
			return 0;
		}
	}

	@Test
	public void initializationErrorIsOnCorrectClass() {
		assertEquals(WrongBeforeClass.class.getName(), 
				Request.aClass(WrongBeforeClass.class).getRunner().getDescription().getDisplayName());
	}

	public static class NonStaticBeforeClass {
		@BeforeClass public void before() {}
		@Test public void hereBecauseEveryTestClassNeedsATest() {}
	}

	@Test
	public void nonStaticBeforeClass() {
		Result result= JUnitCore.runClasses(NonStaticBeforeClass.class);
		assertEquals("Method before() should be static", result.getFailures().get(0).getMessage());
	}
}