android cts and junit

Classes:from parent to child

junit

packagejunit.framework;<br><br>publicinterfaceTest {    publicabstractint countTestCases();    publicabstractvoid run(TestResult result);}

Assert

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

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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 {
}
....

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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);
 }

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