ANDROID TESTING 2
The objective 0
The objective1
The objective2
The objective3
What to Test1. Initial conditions 2. UI3. State management
initial conditions testVerifies that the application under test is
initialized correctly:1. The item select listener is initialized. 2. The adapter that provides values to the spinner is
initialized. 3. The adapter contains the right number of entries.
Code for initial testpublic void testPreConditions() {
assertTrue(mSpinner.getOnItemSelectedListener() != null);assertTrue(mPlanetData != null);assertEquals(mPlanetData.getCount(), ADAPTER_COUNT);//ADAPTER_COUNT等于 9
} // end of testPreConditions() method definition/*mActivity = getActivity();mSpinner = (Spinner)
mActivity.findViewById(com.android.example.spinner.R.id.Spinner01);mPlanetData = mSpinner.getAdapter(); //mPlanetData is the Adapter.*/
UI Test1. sends key events to the UI with key
events. via instrumentation classes
2. confirms that the selection matches the result you expect
Code for UI Test(1)public void testSpinnerUI() {
mActivity.runOnUiThread(new Runnable() { public void run() {mSpinner.requestFocus();mSpinner.setSelection(INITIAL_POSITION); } // end of run() method definition} // end of anonymous Runnable object instantiation); // end of invocation of runOnUiThread
this.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);for (int i = 1; i <= TEST_POSITION; i++) {this.sendKeys(KeyEvent.KEYCODE_DPAD_DOWN);} // end of for loopthis.sendKeys(KeyEvent.KEYCODE_DPAD_CENTER);
Code for UI Test(2)mPos = mSpinner.getSelectedItemPosition();mSelection = (String) mSpinner.getItemAtPosition(mPos);TextView resultView = (TextView) mActivity.findViewById(
com.android.example.spinner.R.id.SpinnerResult);String resultText = (String) resultView.getText();assertEquals(resultText, mSelection);
} // end of testSpinnerUI() method definition
State Management TestTwo tests verify that SpinnerActivity maintains
its state when it is paused or terminated.
1. When an activity is hidden(not quit), it is paused--- onPause()
2. When it re-appears, it resumes---onResume()3. SpinnerActivity uses them for saving and
restoring state.
Code for State Management Test1// verifies that the spinner selection is maintained after the entire application //is
shut down and then restarted.public void testStateDestroy() {
mActivity.setSpinnerPosition(TEST_STATE_DESTROY_POSITION); //2mActivity.setSpinnerSelection(TEST_STATE_DESTROY_SELECTION); // "earth"
mActivity.finish(); //terminates the app
mActivity = this.getActivity(); //start the app int currentPosition = mActivity.getSpinnerPosition(); String currentSelection = mActivity.getSpinnerSelection(); assertEquals(TEST_STATE_DESTROY_POSITION, currentPosition); assertEquals(TEST_STATE_DESTROY_SELECTION, currentSelection); } // end of testStateDestroy() method definition
Code for State Management Test2//verifies that the spinner selection is maintained after the activity is paused and then
//resumed.public void testStatePause() {
Instrumentation mInstr = this.getInstrumentation();
mActivity.setSpinnerPosition(TEST_STATE_PAUSE_POSITION); //4mActivity.setSpinnerSelection(TEST_STATE_PAUSE_SELECTION);// "Jupiter"
mInstr.callActivityOnPause(mActivity);//Force the spinner to a different selection: mActivity.setSpinnerPosition(0);mActivity.setSpinnerSelection("");//Use instrumentation to call the Activity's onResume():mInstr.callActivityOnResume(mActivity);//Get the current state of the spinner: int currentPosition = mActivity.getSpinnerPosition(); String currentSelection = mActivity.getSpinnerSelection();assertEquals(TEST_STATE_PAUSE_POSITION,currentPosition); assertEquals(TEST_STATE_PAUSE_SELECTION,currentSelection);
} // end of testStatePause() method definition
Test running result
What if the test fails??
At the end of onCreate in SpinnerActivity.java:spinner.setOnItemSelectedListener(null);
What will happen???
Thank you!