1.介紹一下junit
???junit是一個用來單元測試的工具,它可以針對一個/多個類的單個或多個方法進行測試,還可以自動化套件測試.將junit.jar包從www.junit.org.載下來放到eclipse 項目中的java build path中.
2.創建一個TestCase
???File > New > JUnit Test Case 或者點擊"
"來創建一個TestCase
???代碼如下
???import junit.framework.TestCase;
???public class SampleTest extends TestCase {
???? private java.util.List emptyList;
???? /**
????? * Sets up the test fixture.
????? * (Called before every test case method.)
????? */
???? protected void setUp() {
????????? emptyList = new java.util.ArrayList();
???? }?
???? /**
????? * Tears down the test fixture.
????? * (Called after every test case method.)
????? */
???? protected void tearDown() {
????????? emptyList = null;
???? }?
???? public void testSomeBehavior() {
????????? assertEquals("Empty list should have 0 elements", 0, emptyList.size());
???? }?
???? public void testForException() {
????????? try {
?????????????? Object o = emptyList.get(0);
?????????????? fail("Should raise an IndexOutOfBoundsException");
????????? }
????????? catch (IndexOutOfBoundsException success) {
????????? }
???? }
}
這個例子有兩個方法需要測試,第一個方法測試list中沒有任何對象,第二個方法測試沒有使用斷言,它一定會成功
3.創建一個TestSuite
???通過測試套件可以運行多個測試用例
?? (3.1)選擇???File > New > Other... > Java > JUnit > JUnit Test Suite. 或者Other... > Java > JUnit > JUnit Test Suite,
import junit.framework.Test;
import junit.framework.TestSuite;
???public class AllTests {
????public static Test suite() {
????????TestSuite suite = new TestSuite("Test for com.xu.Test");
????????//$JUnit-BEGIN$
????????suite.addTestSuite(SampleTest .class);
????????//$JUnit-END$
????????return suite;
????}
}