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Commit af10fe3c authored by Candice's avatar Candice Committed by chihtinglo
Browse files

fix(magnification): Fix the test of saving and restoring window size preference 

1. Using FakeSharedPreference in the test to guarantee the functions
   applied to SharedPreferennce are committed properly when we test the
   results.
2. Cleaning up SharedPreference contents to ensure the values stored in
   previous tests won't affect the next tests.
3. Verifying the width and height of view with the magnification frame
   size and margins.

Bug: 331139221
Flag: N/A
Test: Testing following tests several iterations
    atest WindowMagnificationControllerTest
    atest WindowMagnificatinControllerWindowlessMagnifierTest
    atest WindowMagnificationSizePrefsTest
    atest MagnificationTest
Change-Id: I3b287d5a9bf20db083f89a67c8ce5e9b19eec333
parent db7588db

packages/SystemUI/src/com/android/systemui/accessibility/WindowMagnificationSizePrefs.java

+1 −1
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ import android.util.Size; 
/**

 * Class to handle SharedPreference for window magnification size.

 */

public final class WindowMagnificationSizePrefs {

final class WindowMagnificationSizePrefs {



    private static final String WINDOW_MAGNIFICATION_PREFERENCES =

            "window_magnification_preferences";

packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerTest.java

+37 −9
Original line number Diff line number Diff line
@@ -100,6 +100,7 @@ import com.android.systemui.kosmos.KosmosJavaAdapter; 
import com.android.systemui.model.SysUiState;

import com.android.systemui.res.R;

import com.android.systemui.settings.FakeDisplayTracker;

import com.android.systemui.util.FakeSharedPreferences;

import com.android.systemui.util.leak.ReferenceTestUtils;

import com.android.systemui.util.settings.SecureSettings;

import com.android.systemui.utils.os.FakeHandler;
@@ -169,6 +170,7 @@ public class WindowMagnificationControllerTest extends SysuiTestCase { 
    private View.OnTouchListener mTouchListener;

    private MotionEventHelper mMotionEventHelper = new MotionEventHelper();

    private KosmosJavaAdapter mKosmos;

    private FakeSharedPreferences mSharedPreferences;



    /**

     *  return whether window magnification is supported for current test context.
@@ -180,6 +182,7 @@ public class WindowMagnificationControllerTest extends SysuiTestCase { 
    @Before

    public void setUp() throws Exception {

        MockitoAnnotations.initMocks(this);

        mContext = spy(mContext);

        mKosmos = new KosmosJavaAdapter(this);

        mContext = Mockito.spy(getContext());

        mHandler = new FakeHandler(TestableLooper.get(this).getLooper());
@@ -219,6 +222,10 @@ public class WindowMagnificationControllerTest extends SysuiTestCase { 


        mWindowMagnificationAnimationController = new WindowMagnificationAnimationController(

                mContext, mValueAnimator);

        mSharedPreferences = new FakeSharedPreferences();

        when(mContext.getSharedPreferences(

                eq("window_magnification_preferences"), anyInt()))

                .thenReturn(mSharedPreferences);

        mWindowMagnificationController =

                new WindowMagnificationController(

                        mContext,
@@ -249,7 +256,9 @@ public class WindowMagnificationControllerTest extends SysuiTestCase { 
    @After

    public void tearDown() {

        mInstrumentation.runOnMainSync(

                () -> mWindowMagnificationController.deleteWindowMagnification());

                () -> {

                    mWindowMagnificationController.deleteWindowMagnification();

                });

        mValueAnimator.cancel();

    }
@@ -600,22 +609,41 @@ public class WindowMagnificationControllerTest extends SysuiTestCase { 
    }



    @Test

    public void onScreenChangedToSavedDensity_enabled_restoreSavedMagnifierWindow() {

        mContext.getResources().getConfiguration().smallestScreenWidthDp =

    public void onScreenSizeAndDensityChanged_enabled_restoreSavedMagnifierWindow() {

        int newSmallestScreenWidthDp =

                mContext.getResources().getConfiguration().smallestScreenWidthDp * 2;

        int windowFrameSize = mResources.getDimensionPixelSize(

                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);

        mWindowMagnificationController.mWindowMagnificationSizePrefs.saveSizeForCurrentDensity(

                new Size(windowFrameSize, windowFrameSize));

        Size preferredWindowSize = new Size(windowFrameSize, windowFrameSize);

        mSharedPreferences

                .edit()

                .putString(String.valueOf(newSmallestScreenWidthDp),

                        preferredWindowSize.toString())

                .commit();

        mInstrumentation.runOnMainSync(() -> {

            mWindowMagnificationController

                    .enableWindowMagnificationInternal(Float.NaN, Float.NaN, Float.NaN);

        });



        // Change screen density and size to trigger restoring the preferred window size

        mContext.getResources().getConfiguration().smallestScreenWidthDp = newSmallestScreenWidthDp;

        final Rect testWindowBounds = new Rect(

                mWindowManager.getCurrentWindowMetrics().getBounds());

        testWindowBounds.set(testWindowBounds.left, testWindowBounds.top,

                testWindowBounds.right + 100, testWindowBounds.bottom + 100);

        mWindowManager.setWindowBounds(testWindowBounds);

        mInstrumentation.runOnMainSync(() -> {

            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,

                    Float.NaN);

            mWindowMagnificationController.onConfigurationChanged(ActivityInfo.CONFIG_SCREEN_SIZE);

        });



        // wait for rect update

        waitForIdleSync();

        WindowManager.LayoutParams params = mWindowManager.getLayoutParamsFromAttachedView();

        assertTrue(params.width == windowFrameSize);

        assertTrue(params.height == windowFrameSize);

        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(

                R.dimen.magnification_mirror_surface_margin);

        // The width and height of the view include the magnification frame and the margins.

        assertTrue(params.width == (windowFrameSize + 2 * mirrorSurfaceMargin));

        assertTrue(params.height == (windowFrameSize + 2 * mirrorSurfaceMargin));

    }



    @Test

packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationControllerWindowlessMagnifierTest.java

+37 −9
Original line number Diff line number Diff line
@@ -102,6 +102,7 @@ import com.android.systemui.kosmos.KosmosJavaAdapter; 
import com.android.systemui.model.SysUiState;

import com.android.systemui.res.R;

import com.android.systemui.settings.FakeDisplayTracker;

import com.android.systemui.util.FakeSharedPreferences;

import com.android.systemui.util.leak.ReferenceTestUtils;

import com.android.systemui.util.settings.SecureSettings;

import com.android.systemui.utils.os.FakeHandler;
@@ -176,6 +177,7 @@ public class WindowMagnificationControllerWindowlessMagnifierTest extends SysuiT 
    // The most recently created SurfaceControlViewHost.

    private SurfaceControlViewHost mSurfaceControlViewHost;

    private KosmosJavaAdapter mKosmos;

    private FakeSharedPreferences mSharedPreferences;



    /**

     *  return whether window magnification is supported for current test context.
@@ -187,6 +189,7 @@ public class WindowMagnificationControllerWindowlessMagnifierTest extends SysuiT 
    @Before

    public void setUp() throws Exception {

        MockitoAnnotations.initMocks(this);

        mContext = spy(mContext);

        mKosmos = new KosmosJavaAdapter(this);

        mContext = Mockito.spy(getContext());

        mHandler = new FakeHandler(TestableLooper.get(this).getLooper());
@@ -228,6 +231,10 @@ public class WindowMagnificationControllerWindowlessMagnifierTest extends SysuiT 
            return mSurfaceControlViewHost;

        };

        mTransaction = spy(new SurfaceControl.Transaction());

        mSharedPreferences = new FakeSharedPreferences();

        when(mContext.getSharedPreferences(

                eq("window_magnification_preferences"), anyInt()))

                .thenReturn(mSharedPreferences);

        mWindowMagnificationController =

                new WindowMagnificationController(

                        mContext,
@@ -258,7 +265,9 @@ public class WindowMagnificationControllerWindowlessMagnifierTest extends SysuiT 
    @After

    public void tearDown() {

        mInstrumentation.runOnMainSync(

                () -> mWindowMagnificationController.deleteWindowMagnification());

                () -> {

                    mWindowMagnificationController.deleteWindowMagnification();

                });

        mValueAnimator.cancel();

    }
@@ -614,22 +623,41 @@ public class WindowMagnificationControllerWindowlessMagnifierTest extends SysuiT 
    }



    @Test

    public void onScreenChangedToSavedDensity_enabled_restoreSavedMagnifierWindow() {

        mContext.getResources().getConfiguration().smallestScreenWidthDp =

    public void onScreenSizeAndDensityChanged_enabled_restoreSavedMagnifierWindow() {

        int newSmallestScreenWidthDp =

                mContext.getResources().getConfiguration().smallestScreenWidthDp * 2;

        int windowFrameSize = mResources.getDimensionPixelSize(

                com.android.internal.R.dimen.accessibility_window_magnifier_min_size);

        mWindowMagnificationController.mWindowMagnificationSizePrefs.saveSizeForCurrentDensity(

                new Size(windowFrameSize, windowFrameSize));

        Size preferredWindowSize = new Size(windowFrameSize, windowFrameSize);

        mSharedPreferences

                .edit()

                .putString(String.valueOf(newSmallestScreenWidthDp),

                        preferredWindowSize.toString())

                .commit();

        mInstrumentation.runOnMainSync(() -> {

            mWindowMagnificationController

                    .enableWindowMagnificationInternal(Float.NaN, Float.NaN, Float.NaN);

        });



        // Screen density and size change

        mContext.getResources().getConfiguration().smallestScreenWidthDp = newSmallestScreenWidthDp;

        final Rect testWindowBounds = new Rect(

                mWindowManager.getCurrentWindowMetrics().getBounds());

        testWindowBounds.set(testWindowBounds.left, testWindowBounds.top,

                testWindowBounds.right + 100, testWindowBounds.bottom + 100);

        mWindowManager.setWindowBounds(testWindowBounds);

        mInstrumentation.runOnMainSync(() -> {

            mWindowMagnificationController.enableWindowMagnificationInternal(Float.NaN, Float.NaN,

                    Float.NaN);

            mWindowMagnificationController.onConfigurationChanged(ActivityInfo.CONFIG_SCREEN_SIZE);

        });



        // wait for rect update

        waitForIdleSync();

        ViewGroup.LayoutParams params = mSurfaceControlViewHost.getView().getLayoutParams();

        assertTrue(params.width == windowFrameSize);

        assertTrue(params.height == windowFrameSize);

        final int mirrorSurfaceMargin = mResources.getDimensionPixelSize(

                R.dimen.magnification_mirror_surface_margin);

        // The width and height of the view include the magnification frame and the margins.

        assertTrue(params.width == (windowFrameSize + 2 * mirrorSurfaceMargin));

        assertTrue(params.height == (windowFrameSize + 2 * mirrorSurfaceMargin));

    }



    @Test

packages/SystemUI/tests/src/com/android/systemui/accessibility/WindowMagnificationSizePrefsTest.java

+19 −2
Original line number Diff line number Diff line
@@ -18,13 +18,20 @@ package com.android.systemui.accessibility; 


import static com.google.common.truth.Truth.assertThat;



import static org.mockito.ArgumentMatchers.anyInt;

import static org.mockito.ArgumentMatchers.eq;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.when;



import android.test.suitebuilder.annotation.SmallTest;

import android.testing.AndroidTestingRunner;

import android.testing.TestableLooper;

import android.util.Size;



import com.android.systemui.SysuiTestCase;

import com.android.systemui.util.FakeSharedPreferences;



import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;
@@ -33,8 +40,18 @@ import org.junit.runner.RunWith; 
@TestableLooper.RunWithLooper

public class WindowMagnificationSizePrefsTest extends SysuiTestCase {



    WindowMagnificationSizePrefs mWindowMagnificationSizePrefs =

            new WindowMagnificationSizePrefs(mContext);

    WindowMagnificationSizePrefs mWindowMagnificationSizePrefs;

    FakeSharedPreferences mSharedPreferences;



    @Before

    public void setUp() {

        mContext = spy(mContext);

        mSharedPreferences = new FakeSharedPreferences();

        when(mContext.getSharedPreferences(

                eq("window_magnification_preferences"), anyInt()))

                .thenReturn(mSharedPreferences);

        mWindowMagnificationSizePrefs = new WindowMagnificationSizePrefs(mContext);

    }



    @Test

    public void saveSizeForCurrentDensity_getExpectedSize() {