android cts and junit

最新推荐文章于 2021-05-25 19:38:22 发布

weixin_33782386

最新推荐文章于 2021-05-25 19:38:22 发布

阅读量75

点赞数

CC 4.0 BY-SA版权

文章标签：移动开发 java

原文链接：http://www.cnblogs.com/elfylin/archive/2012/04/03/2430559.html

本文详细介绍了JUnit框架的核心组件，包括Test接口、Assert类和TestCase类的功能与实现方式，并深入探讨了InstrumentationTestCase类及其特有的方法。

Classes:from parent to child

junit

package junit.framework;

public interface Test {
	public abstract int countTestCases();
	public abstract void run(TestResult result);
}

Assert

package junit.framework;
public class Assert {
...
assertTrue()
assertFalse()
fail()
assertEquals()
assertNotNull()
assertNull()
...
}

fail will throw error, other's function will call fail in the end.

2. TestCase

package junit.framework;
public abstract class TestCase extends Assert implements Test {

    protected void runTest() throws Throwable {
        assertNotNull(fName);
        Method runMethod= null;
        try {
            // use getMethod to get all public inherited
            // methods. getDeclaredMethods returns all
            // methods of this class but excludes the
            // inherited ones.
            runMethod= getClass().getMethod(fName, (Class[]) null);
        } catch (NoSuchMethodException e) {
            fail("Method \""+fName+"\" not found");
        }
        try {
            runMethod.invoke(this, (Object[]) null);
        }
　　　　　....
}
public String getName() {
    return fName;
}
public void setName(String name) {
    fName= name;
}
protected void setUp() throws Exception {
}   

protected void tearDown() throws Exception {
}
....

TestCase has a method run(), which use java reflect to get the "Class" and "Method"

then call method.invoke() to start method.

3.InstrumentationTestCase

package android.test;
public class InstrumentationTestCase extends TestCase {
....    
public final <T extends Activity> T launchActivity(
            String pkg,
            Class<T> activityCls,
            Bundle extras) {
        Intent intent = new Intent(Intent.ACTION_MAIN);
if (extras != null) {
            intent.putExtras(extras);
        }
return launchActivityWithIntent(pkg, activityCls, intent);
    }
...
    public void runTestOnUiThread(final Runnable r) throws Throwable {
　　....
   }
...    
   protected void runTest() throws Throwable {
　　...
   }

    private void runMethod(Method runMethod, int tolerance) throws Throwable {
        runMethod(runMethod, tolerance, false);
    }