测试edittext getText方法

Question

我有一个类UiUtils，其方法如下:

public static String getEditTextValue(final EditText editText) {
    if(editText == null) return null;
    final Editable text = editText.getText();
    if(text == null) return null;
    return text.toString();
}

然后我想把单元测试添加到那个类中。我正在创建一个简单的单元测试，但这是失败的。我已经这样做了:

@RunWith(MockitoJUnitRunner.class)
public class UiUtilsTest {
    @Mock
    EditText editText;
    @Test
    public void getEditTextValue_ReturnsValueString() {
        final String value = "text";
        editText.setText(value);
        Assert.assertEquals(value, UiUtils.getEditTextValue(editText));
    }
}

正如你所看到的，我正在创建一个模拟的EditText，然后我setText，并期望得到相同的值。但是由于某种原因，editText.getText()方法总是返回null。这是怎么回事?我错过了什么?

Answer 1

试试这个:

@RunWith(MockitoJUnitRunner.class)
public class UiUtilsTest {
    @Mock
    EditText editText;
    @Test
    public void getEditTextValue_ReturnsValueString() {
        final String value = "text";
        Mockito.doCallRealMethod().when(editText).setText(value);
        Mockito.doCallRealMethod().when(editText).getText();
        editText.setText(value);
        Assert.assertEquals(value, UiUtils.getEditTextValue(editText));
    }
}

Answer 2

嘿，我遇到了同样的问题，请试试这个:

 @Before
public void init() {
    MockitoAnnotations.initMocks(this);
    when(rootView.findViewById(R.id.button_logout)).thenReturn(buttonLogout);
    when(rootView.findViewById(R.id.button_unlock)).thenReturn(buttonUnlock);
    when(rootView.findViewById(R.id.ScreenLock_PasswordTextField)).thenReturn(passwordField);
    when(passwordField.getText()).thenReturn(Editable.Factory.getInstance().newEditable("asd"));
    when(application.getPassword()).thenReturn("asd");
    sut = new ScreenLockPresenterImpl(application, rootView, screenLockListener,
            logoutButtonClickListener);
}

@Test
public void testOnClickWhenOk() {
    sut.onClick(null);
    verify(passwordField).getText();
    verify(screenLockListener).unLock();
}

我想这就是你要找的:当(passwordField.getText ()) .thenReturn (Editable.Factory.getInstance () .newEditable (asd));