我想要稳健的junit。并创建一些测试应用程序,然后尝试测试。我有简单的活动,在这个活动中我有方法checkEditText
这个方法返回true或false。这是我的活动:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public boolean checkEditText(int number) {
return number > 0 ? true : false;
}
这是测试:
package ac.junit2;
import android.test.ActivityInstrumentationTestCase2;
import org.junit.Assert;
public class MainActivityTest extends ActivityInstrumentationTestCase2<MainActivity> {
public MainActivityTest() {
super(MainActivity.class);
}
@Override
protected void setUp() throws Exception {
super.setUp();
MainActivity activity = getActivity();
Assert.assertNotNull(activity);
}
public void testCheckNumber() {
MainActivity activity = getActivity();
boolean action = activity.checkEditText(0);
assertTrue(action);
}
}
我有错误:
java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertNotNull(Assert.java:712)
at org.junit.Assert.assertNotNull(Assert.java:722)
at ac.junit2.MainActivityTest.setUp(MainActivityTest.java:26)
at junit.framework.TestCase.runBare(TestCase.java:139)
at junit.framework.TestResult$1.protect(TestResult.java:122)
at junit.framework.TestResult.runProtected(TestResult.java:142)
at junit.framework.TestResult.run(TestResult.java:125)
at junit.framework.TestCase.run(TestCase.java:129)
at junit.framework.TestSuite.runTest(TestSuite.java:252)
at junit.framework.TestSuite.run(TestSuite.java:247)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:86)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
答案 0 :(得分:1)
因为0不大于0.所以
return number > 0 ? true : false;
当数字为0时,将返回false。
在测试中,您声明为true但结果为false。
答案 1 :(得分:1)
测试失败了,就像你编程一样。 activity.checkEditText(0);
的结果是false
,因为您定义了返回false
的方法,除非参数更大大于0.然后在您的测试中,您声明结果应为true
。