io.flutter.plugin.platform.SingleViewPresentationTest Class Reference

Public Member Functions
void	returnsOuterContextInputMethodManager ()
void	returnsOuterContextInputMethodManager_createDisplayContext ()

Detailed Description

Definition at line 27 of file SingleViewPresentationTest.java.

Member Function Documentation

returnsOuterContextInputMethodManager()

void io.flutter.plugin.platform.SingleViewPresentationTest.returnsOuterContextInputMethodManager ( )

inline

Definition at line 30 of file SingleViewPresentationTest.java.

                                                      {
    // There's a bug in Android Q caused by the IMM being instanced per display.
    // https://github.com/flutter/flutter/issues/38375. We need the context returned by
    // SingleViewPresentation to be consistent from its instantiation instead of defaulting to
    // what the system would have returned at call time.
 
    // It's not possible to set up the exact same conditions as the unit test in the bug here,
    // but we can make sure that we're wrapping the Context passed in at instantiation time and
    // returning the same InputMethodManager from it. This test passes in a Spy context instance
    // that initially returns a mock. Without the bugfix this test falls back to Robolectric's
    // system service instead of the spy's and fails.
 
    // Create an SVP under test with a Context that returns a local IMM mock.
    Context context = spy(ApplicationProvider.getApplicationContext());
    InputMethodManager expected = mock(InputMethodManager.class);
    when(context.getSystemService(Context.INPUT_METHOD_SERVICE)).thenReturn(expected);
    DisplayManager dm = (DisplayManager) context.getSystemService(Context.DISPLAY_SERVICE);
    SingleViewPresentation svp =
        new SingleViewPresentation(context, dm.getDisplay(0), null, null, null, false);
 
    // Get the IMM from the SVP's context.
    InputMethodManager actual =
        (InputMethodManager) svp.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
 
    // This should be the mocked instance from construction, not the IMM from the greater
    // Android OS (or Robolectric's shadow, in this case).
    assertEquals(expected, actual);
  }

returnsOuterContextInputMethodManager_createDisplayContext()

void io.flutter.plugin.platform.SingleViewPresentationTest.returnsOuterContextInputMethodManager_createDisplayContext ( )

inline

Definition at line 61 of file SingleViewPresentationTest.java.

                                                                           {
    // The IMM should also persist across display contexts created from the base context.
 
    // Create an SVP under test with a Context that returns a local IMM mock.
    Context context = spy(ApplicationProvider.getApplicationContext());
    InputMethodManager expected = mock(InputMethodManager.class);
    when(context.getSystemService(Context.INPUT_METHOD_SERVICE)).thenReturn(expected);
    Display display =
        ((DisplayManager) context.getSystemService(Context.DISPLAY_SERVICE)).getDisplay(0);
    SingleViewPresentation svp =
        new SingleViewPresentation(context, display, null, null, null, false);
 
    // Get the IMM from the SVP's context.
    InputMethodManager actual =
        (InputMethodManager)
            svp.getContext()
                .createDisplayContext(display)
                .getSystemService(Context.INPUT_METHOD_SERVICE);
 
    // This should be the mocked instance from construction, not the IMM from the greater
    // Android OS (or Robolectric's shadow, in this case).
    assertEquals(expected, actual);
  }

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The documentation for this class was generated from the following file:

• shell/platform/android/test/io/flutter/plugin/platform/SingleViewPresentationTest.java