Android InstrumentationTestCase Part II

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對於Android 單元測試來說, 若滿足以下測試條件, 可選用 ActivityInstrumentationTestCase2 (Function Test) 來測試

(1) 針對單一Activity 測試, 不涉及其他Activity交互作用.
(2) 對UI進行自動化測試
(3) 可對裝置使用程式來模擬輸入, 點擊 等UI 事件.

與ActivityUnitTestCase (Unit Test) 的最大不同點為: 可對裝置使用程式來模擬輸入, 點擊 等UI 事件.

Step 1: 建立測試檔

建立測試檔 MainActivityTest_AIT2 extends ActivityInstrumentationTestCase2

使用 Ctrl + Shift + T 建立測試檔, 並選擇 subclass 為 ActivityInstrumentationTestCase2

位置儲存於 /src/androidTest/java/ package_path /

Step 2: 初始化

建立測試元件

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private Intent mStartIntent;
MainActivity mMainActivity;

private Button mTestButton;
private EditText mEditText;
private TextView mTextView;

建立Constructor

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public MainActivityTest_AIS2() {
    super(MainActivity.class);
}

當每項測試前, 都會將測試元件初始化

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@Override
protected void setUp() throws Exception {
    super.setUp();
    mMainActivity = (MainActivity) getActivity();
    mTestButton = (Button) mMainActivity.findViewById(R.id.test_bt);
    mEditText = (EditText) mMainActivity.findViewById(R.id.enter);
    mTextView = (TextView) mMainActivity.findViewById(R.id.show_text);
}

public void testPreconditions() {
    assertNotNull(mMainActivity);
    assertNotNull(mTestButton);
    assertNotNull(mEditText);
    assertNotNull(mTextView);
    assertNotNull(mMainActivity);
}

Step 3: 對輸入框執行輸入

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Instrumentation instrumentation = getInstrumentation();
assertNotNull(instrumentation);

instrumentation.runOnMainSync(new Runnable() {
    @Override
    public void run() {
        mEditText.requestFocus();
    }
});
instrumentation.waitForIdleSync();
instrumentation.sendStringSync("Click Test Button");
instrumentation.waitForIdleSync();

Step 4: 點擊Test按鈕, 修改TextView

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instrumentation.runOnMainSync(new Runnable() {
    @Override
    public void run() {
        mTestButton.requestFocus();
    }
});
instrumentation.waitForIdleSync();
instrumentation.sendKeyDownUpSync(KeyEvent.KEYCODE_ENTER);
instrumentation.waitForIdleSync();

Step 5: 執行測試

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assertEquals("Click Test Button", mEditText.getText().toString());
assertEquals("Click Test Button", mTextView.getText().toString());
assertEquals(mEditText.getText().toString(), mTextView.getText().toString());

Source Code

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public class MainActivityTest_AIT2 extends ActivityInstrumentationTestCase2 {

    MainActivity mMainActivity;

    private Button mTestButton;
    private EditText mEditText;
    private TextView mTextView;

    public MainActivityTest_AIT2() {
        super(MainActivity.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mMainActivity = (MainActivity) getActivity();
        mTestButton = (Button) mMainActivity.findViewById(R.id.test_bt);
        mEditText = (EditText) mMainActivity.findViewById(R.id.enter);
        mTextView = (TextView) mMainActivity.findViewById(R.id.show_text);
    }

    public void testPreconditions() {
        assertNotNull(mMainActivity);
        assertNotNull(mTestButton);
        assertNotNull(mEditText);
        assertNotNull(mTextView);
        assertNotNull(mMainActivity);
    }

    @MediumTest
    public void testShowText() {
        Instrumentation instrumentation = getInstrumentation();
        assertNotNull(instrumentation);

        instrumentation.runOnMainSync(new Runnable() {
            @Override
            public void run() {
                mEditText.requestFocus();
            }
        });
        instrumentation.waitForIdleSync();
        instrumentation.sendStringSync("Click Test Button");
        instrumentation.waitForIdleSync();


        instrumentation.runOnMainSync(new Runnable() {
            @Override
            public void run() {
                mTestButton.requestFocus();
            }
        });
        instrumentation.waitForIdleSync();
        instrumentation.sendKeyDownUpSync(KeyEvent.KEYCODE_ENTER);
        instrumentation.waitForIdleSync();

        assertEquals("Click Test Button", mEditText.getText().toString());
        assertEquals("Click Test Button", mTextView.getText().toString());
        assertEquals(mEditText.getText().toString(), mTextView.getText().toString());
    }
}

Android InstrumentationTestCase Part II

https://nickcarter9.github.io/2016/08/01/2016/2016_08_01-android-app_instrumentation_test_2/

作者

Nick Lin

發表於

2016-08-01

更新於

2023-01-18

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