testsuitdemo.java

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package junit;

import junit.framework.*;

public class TestSuitDemo extends TestCase {
  private JUnitTestDemo jUnitTestClass = null;

  public TestSuitDemo(String s) {
    super(s);
  }
  
  public static Test suite() {
    TestSuite suite = new TestSuite();
    //应用addTestSuite方法加入第1个测试类，TestJUnitTestDemo测试类
    suite.addTestSuite(TestJUnitTestDemo.class);
    //应用addTestSuite方法加入第2个测试类，TestSuitDemo测试类
    suite.addTestSuite(TestSuitDemo.class);
    return suite;
  }

  
  protected void setUp() throws Exception {
    super.setUp();
    jUnitTestClass = new JUnitTestDemo();
  }

  protected void tearDown() throws Exception {
    jUnitTestClass = null;
    super.tearDown();
  }

  
  public void testAdd() {
    double d1 = 5;
    double d2 = 3;
    //创建期望值
    double expectedReturn = 8;
    //应用addResult方法取得返回值
    double actualReturn = jUnitTestClass.add(d1, d2);
    //比较期望值与返回值是否相同,2表示只比较2位小数
    assertEquals("return value", expectedReturn, actualReturn, 2);
  }

  public void testDivide() {
    double d1 = 9;
    double d2 = 3;
    double expectedReturn = 3;
    double actualReturn = jUnitTestClass.divide(d1, d2);
    assertEquals("return value", expectedReturn, actualReturn, 2);
  }
}