1 files changed, 345 insertions, 0 deletions
diff --git a/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java b/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java
new file mode 100644
index 0000000000..fbbfb2af48
--- /dev/null
+++ b/tests/src/com/android/launcher3/icons/FastBitmapDrawableTest.java
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.launcher3.icons;
+
+import static com.android.launcher3.icons.FastBitmapDrawable.CLICK_FEEDBACK_DURATION;
+import static com.android.launcher3.icons.FastBitmapDrawable.HOVERED_SCALE;
+import static com.android.launcher3.icons.FastBitmapDrawable.HOVER_FEEDBACK_DURATION;
+import static com.android.launcher3.icons.FastBitmapDrawable.PRESSED_SCALE;
+import static com.android.launcher3.icons.FastBitmapDrawable.SCALE;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import android.view.animation.PathInterpolator;
+
+import androidx.test.annotation.UiThreadTest;
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+
+/**
+ * Tests for FastBitmapDrawable.
+ */
+@SmallTest
+@UiThreadTest
+@RunWith(AndroidJUnit4.class)
+public class FastBitmapDrawableTest {
+    private static final float EPSILON = 0.00001f;
+
+    @Spy
+    FastBitmapDrawable mFastBitmapDrawable =
+            spy(new FastBitmapDrawable(Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888)));
+    @Mock Drawable mBadge;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        FastBitmapDrawable.setFlagHoverEnabled(true);
+        when(mFastBitmapDrawable.isVisible()).thenReturn(true);
+        mFastBitmapDrawable.mIsPressed = false;
+        mFastBitmapDrawable.mIsHovered = false;
+        mFastBitmapDrawable.resetScale();
+    }
+
+    @Test
+    public void testOnStateChange_noState() {
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale changes without state change.
+        assertFalse("State change handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+    }
+
+    @Test
+    public void testOnStateChange_statePressed() {
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to state pressed.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHovered() {
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to state hovered.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredFlagDisabled() {
+        FastBitmapDrawable.setFlagHoverEnabled(false);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No state change with flag disabled.
+        assertFalse("Hover state change handled with flag disabled.", isHandled);
+        assertNull("Animation should not run with hover flag disabled.",
+                mFastBitmapDrawable.mScaleAnimation);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedAndHovered() {
+        int[] state = new int[]{android.R.attr.state_pressed, android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state only.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressed() {
+        int[] state = new int[]{android.R.attr.state_hovered, android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state only.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressedToPressed() {
+        mFastBitmapDrawable.mIsPressed = true;
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to pressed state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredAndPressedToHovered() {
+        mFastBitmapDrawable.mIsPressed = true;
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredToPressed() {
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedToHovered() {
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No scale change from pressed state to hovered state.
+        assertTrue("State not changed.", isHandled);
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromPressed() {
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to default state from pressed state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof DecelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromHovered() {
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to default state from hovered state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.", mFastBitmapDrawable.mScaleAnimation.getDuration(),
+                HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateHoveredWhilePartiallyScaled() {
+        SCALE.setValue(mFastBitmapDrawable, 0.5f);
+        int[] state = new int[]{android.R.attr.state_hovered};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to hovered state from midway to pressed state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.",
+                mFastBitmapDrawable.mScaleAnimation.getDuration(), HOVER_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), HOVERED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator() instanceof PathInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_statePressedWhilePartiallyScaled() {
+        SCALE.setValue(mFastBitmapDrawable, 0.5f);
+        int[] state = new int[]{android.R.attr.state_pressed};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // Animate to pressed state from midway to hovered state.
+        assertTrue("State change not handled.", isHandled);
+        assertEquals("Duration not correct.",
+                mFastBitmapDrawable.mScaleAnimation.getDuration(), CLICK_FEEDBACK_DURATION);
+        mFastBitmapDrawable.mScaleAnimation.end();
+        assertEquals("End value not correct.",
+                (float) SCALE.get(mFastBitmapDrawable), PRESSED_SCALE, EPSILON);
+        assertTrue("Wrong interpolator used.",
+                mFastBitmapDrawable.mScaleAnimation.getInterpolator()
+                        instanceof AccelerateInterpolator);
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromPressedNotVisible() {
+        when(mFastBitmapDrawable.isVisible()).thenReturn(false);
+        mFastBitmapDrawable.mIsPressed = true;
+        SCALE.setValue(mFastBitmapDrawable, PRESSED_SCALE);
+        clearInvocations(mFastBitmapDrawable);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No animations when state was pressed but drawable no longer visible. Set values directly.
+        assertTrue("State change not handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        verify(mFastBitmapDrawable).invalidateSelf();
+    }
+
+    @Test
+    public void testOnStateChange_stateDefaultFromHoveredNotVisible() {
+        when(mFastBitmapDrawable.isVisible()).thenReturn(false);
+        mFastBitmapDrawable.mIsHovered = true;
+        SCALE.setValue(mFastBitmapDrawable, HOVERED_SCALE);
+        clearInvocations(mFastBitmapDrawable);
+        int[] state = new int[]{};
+
+        boolean isHandled = mFastBitmapDrawable.onStateChange(state);
+
+        // No animations when state was hovered but drawable no longer visible. Set values directly.
+        assertTrue("State change not handled.", isHandled);
+        assertNull("Scale animation not null.", mFastBitmapDrawable.mScaleAnimation);
+        assertEquals("End value not correct.", (float) SCALE.get(mFastBitmapDrawable), 1f, EPSILON);
+        verify(mFastBitmapDrawable).invalidateSelf();
+    }
+
+    @Test
+    public void testUpdateBadgeAlpha() {
+        mFastBitmapDrawable.setBadge(mBadge);
+
+        mFastBitmapDrawable.setAlpha(1);
+        mFastBitmapDrawable.setAlpha(0);
+
+        verify(mBadge).setAlpha(1);
+        verify(mBadge).setAlpha(0);
+    }
+}