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Commit 1d0d1f2a authored by Bernardo Rufino's avatar Bernardo Rufino
Browse files

Add InputDispatcher unit tests for untrusted touches [2/n] 

Tests around USE_OPACITY type windows and the maximum obscuring opacity.

Test: atest inputflinger_tests
Bug: 158002302
Bug: 177840583
Change-Id: I6258903f45db995c2b31b153ee9662f5cd2802f2
parent c3b7b8ce

services/inputflinger/tests/InputDispatcher_test.cpp

+90 −19
Original line number Diff line number Diff line
@@ -4266,6 +4266,7 @@ protected: 
    constexpr static const float MAXIMUM_OBSCURING_OPACITY = 0.8;

    static const int32_t APP_A_UID = 10001;

    static const int32_t APP_B_UID = 10002;

    static const int32_t APP_C_UID = 10003;



    sp<FakeWindowHandle> mTouchWindow;
@@ -4282,10 +4283,11 @@ protected: 
    }



    sp<FakeWindowHandle> getOccludingWindow(int32_t uid, std::string name,

                                            os::TouchOcclusionMode mode) {

                                            os::TouchOcclusionMode mode, float alpha = 1.0f) {

        sp<FakeWindowHandle> window = getWindow(uid, name);

        window->setFlags(InputWindowInfo::Flag::NOT_TOUCHABLE);

        window->setTouchOcclusionMode(mode);

        window->setAlpha(alpha);

        return window;

    }
@@ -4307,9 +4309,9 @@ protected: 
};



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithBlockUntrustedOcclusionMode_BlocksTouch) {

    const sp<FakeWindowHandle>& window =

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::BLOCK_UNTRUSTED);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();
@@ -4317,9 +4319,8 @@ TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithBlockUntrustedOcclusionMod 
}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithAllowOcclusionMode_AllowsTouch) {

    const sp<FakeWindowHandle>& window =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::ALLOW);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    const sp<FakeWindowHandle>& w = getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::ALLOW);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();
@@ -4327,10 +4328,10 @@ TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithAllowOcclusionMode_AllowsT 
}



TEST_F(InputDispatcherUntrustedTouchesTest, TouchOutsideOccludingWindow_AllowsTouch) {

    const sp<FakeWindowHandle>& window =

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::BLOCK_UNTRUSTED);

    window->setFrame(Rect(0, 0, 50, 50));

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    w->setFrame(Rect(0, 0, 50, 50));

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch({PointF{100, 100}});
@@ -4338,9 +4339,19 @@ TEST_F(InputDispatcherUntrustedTouchesTest, TouchOutsideOccludingWindow_AllowsTo 
}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowFromSameUid_AllowsTouch) {

    const sp<FakeWindowHandle>& window =

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_A_UID, "A", TouchOcclusionMode::BLOCK_UNTRUSTED);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();



    mTouchWindow->consumeAnyMotionDown();

}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithZeroOpacity_AllowsTouch) {

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::BLOCK_UNTRUSTED, 0.0f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();
@@ -4348,10 +4359,20 @@ TEST_F(InputDispatcherUntrustedTouchesTest, WindowFromSameUid_AllowsTouch) { 
}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithOpacityBelowThreshold_AllowsTouch) {

    const sp<FakeWindowHandle>& window =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY);

    window->setAlpha(0.7);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY, 0.7f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();



    mTouchWindow->consumeAnyMotionDown();

}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithOpacityAtThreshold_AllowsTouch) {

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY,

                               MAXIMUM_OBSCURING_OPACITY);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();
@@ -4359,10 +4380,60 @@ TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithOpacityBelowThreshold_Allo 
}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowWithOpacityAboveThreshold_BlocksTouch) {

    const sp<FakeWindowHandle>& window =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY);

    window->setAlpha(0.9);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {window, mTouchWindow}}});

    const sp<FakeWindowHandle>& w =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY, 0.9f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w, mTouchWindow}}});



    touch();



    mTouchWindow->assertNoEvents();

}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowsWithCombinedOpacityAboveThreshold_BlocksTouch) {

    // Resulting opacity = 1 - (1 - 0.7)*(1 - 0.7) = .91

    const sp<FakeWindowHandle>& w1 =

            getOccludingWindow(APP_B_UID, "B1", TouchOcclusionMode::USE_OPACITY, 0.7f);

    const sp<FakeWindowHandle>& w2 =

            getOccludingWindow(APP_B_UID, "B2", TouchOcclusionMode::USE_OPACITY, 0.7f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w1, w2, mTouchWindow}}});



    touch();



    mTouchWindow->assertNoEvents();

}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowsWithCombinedOpacityBelowThreshold_AllowsTouch) {

    // Resulting opacity = 1 - (1 - 0.5)*(1 - 0.5) = .75

    const sp<FakeWindowHandle>& w1 =

            getOccludingWindow(APP_B_UID, "B1", TouchOcclusionMode::USE_OPACITY, 0.5f);

    const sp<FakeWindowHandle>& w2 =

            getOccludingWindow(APP_B_UID, "B2", TouchOcclusionMode::USE_OPACITY, 0.5f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {w1, w2, mTouchWindow}}});



    touch();



    mTouchWindow->consumeAnyMotionDown();

}



TEST_F(InputDispatcherUntrustedTouchesTest,

       WindowsFromDifferentAppsEachBelowThreshold_AllowsTouch) {

    const sp<FakeWindowHandle>& wB =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY, 0.7f);

    const sp<FakeWindowHandle>& wC =

            getOccludingWindow(APP_C_UID, "C", TouchOcclusionMode::USE_OPACITY, 0.7f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {wB, wC, mTouchWindow}}});



    touch();



    mTouchWindow->consumeAnyMotionDown();

}



TEST_F(InputDispatcherUntrustedTouchesTest, WindowsFromDifferentAppsOneAboveThreshold_BlocksTouch) {

    const sp<FakeWindowHandle>& wB =

            getOccludingWindow(APP_B_UID, "B", TouchOcclusionMode::USE_OPACITY, 0.7f);

    const sp<FakeWindowHandle>& wC =

            getOccludingWindow(APP_C_UID, "C", TouchOcclusionMode::USE_OPACITY, 0.9f);

    mDispatcher->setInputWindows({{ADISPLAY_ID_DEFAULT, {wB, wC, mTouchWindow}}});



    touch();