Moving color extraction classes

Fixes: 62220212
Test: make
Test: runtest -x tests/Internal/src/com/android/internal/colorextraction/ColorExtractorTest.java
Test: runtest -x tests/Internal/src/com/android/internal/colorextraction/types/TonalTest.java
Test: runtest systemui
Change-Id: I7c4cf5c40a88555e81fbad9bec2b32c55c927468
Merged-In: I7c4cf5c40a88555e81fbad9bec2b32c55c927468

3 files changed, 195 insertions, 1 deletions

diff --git a/tests/Internal/Android.mk b/tests/Internal/Android.mk
index f59a6240f897..fc001e928e80 100644
--- a/tests/Internal/Android.mk
+++ b/tests/Internal/Android.mk
@@ -10,7 +10,10 @@ LOCAL_PROTOC_OPTIMIZE_TYPE := nano
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_JAVA_LIBRARIES := android.test.runner
-LOCAL_STATIC_JAVA_LIBRARIES := junit legacy-android-test android-support-test
+LOCAL_STATIC_JAVA_LIBRARIES := junit \
+    legacy-android-test \
+    android-support-test \
+    mockito-target-minus-junit4
 
 LOCAL_CERTIFICATE := platform
 
diff --git a/tests/Internal/src/com/android/internal/colorextraction/ColorExtractorTest.java b/tests/Internal/src/com/android/internal/colorextraction/ColorExtractorTest.java
new file mode 100644
index 000000000000..71821472f55e
--- /dev/null
+++ b/tests/Internal/src/com/android/internal/colorextraction/ColorExtractorTest.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2017 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.internal.colorextraction;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.graphics.Color;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.android.internal.colorextraction.ColorExtractor;
+import com.android.internal.colorextraction.ColorExtractor.GradientColors;
+import com.android.internal.colorextraction.types.ExtractionType;
+import com.android.internal.colorextraction.types.Tonal;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/**
+ * Tests color extraction generation.
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class ColorExtractorTest {
+
+    Context mContext;
+
+    @Before
+    public void setup() {
+        mContext = InstrumentationRegistry.getContext();
+    }
+
+    @Test
+    public void ColorExtractor_extractWhenInitialized() {
+        ExtractionType type = mock(Tonal.class);
+        new ColorExtractor(mContext, type);
+        // 1 for lock and 1 for system
+        verify(type, times(2))
+                .extractInto(any(), any(), any(), any());
+    }
+
+    @Test
+    public void getColors_usesFallbackIfFails() {
+        ExtractionType alwaysFail =
+                (inWallpaperColors, outGradientColorsNormal, outGradientColorsDark,
+                        outGradientColorsExtraDark) -> false;
+        ColorExtractor extractor = new ColorExtractor(mContext, alwaysFail);
+        GradientColors colors = extractor.getColors(WallpaperManager.FLAG_SYSTEM);
+
+        assertEquals("Should be using the fallback color.",
+                colors.getMainColor(), ColorExtractor.FALLBACK_COLOR);
+        assertEquals("Should be using the fallback color.",
+                colors.getSecondaryColor(), ColorExtractor.FALLBACK_COLOR);
+        assertFalse("Dark text support should be false.", colors.supportsDarkText());
+    }
+
+    @Test
+    public void getColors_usesExtractedColors() {
+        GradientColors colorsExpectedNormal = new GradientColors();
+        colorsExpectedNormal.setMainColor(Color.RED);
+        colorsExpectedNormal.setSecondaryColor(Color.GRAY);
+
+        GradientColors colorsExpectedDark = new GradientColors();
+        colorsExpectedNormal.setMainColor(Color.BLACK);
+        colorsExpectedNormal.setSecondaryColor(Color.BLUE);
+
+        GradientColors colorsExpectedExtraDark = new GradientColors();
+        colorsExpectedNormal.setMainColor(Color.MAGENTA);
+        colorsExpectedNormal.setSecondaryColor(Color.GREEN);
+
+        ExtractionType type =
+                (inWallpaperColors, outGradientColorsNormal, outGradientColorsDark,
+                        outGradientColorsExtraDark) -> {
+            outGradientColorsNormal.set(colorsExpectedNormal);
+            outGradientColorsDark.set(colorsExpectedDark);
+            outGradientColorsExtraDark.set(colorsExpectedExtraDark);
+            // Successful extraction
+            return true;
+        };
+        ColorExtractor extractor = new ColorExtractor(mContext, type);
+
+        GradientColors colors = extractor.getColors(WallpaperManager.FLAG_SYSTEM,
+                ColorExtractor.TYPE_NORMAL);
+        assertEquals("Extracted colors not being used!", colors, colorsExpectedNormal);
+        colors = extractor.getColors(WallpaperManager.FLAG_SYSTEM, ColorExtractor.TYPE_DARK);
+        assertEquals("Extracted colors not being used!", colors, colorsExpectedDark);
+        colors = extractor.getColors(WallpaperManager.FLAG_SYSTEM, ColorExtractor.TYPE_EXTRA_DARK);
+        assertEquals("Extracted colors not being used!", colors, colorsExpectedExtraDark);
+    }
+}
diff --git a/tests/Internal/src/com/android/internal/colorextraction/types/TonalTest.java b/tests/Internal/src/com/android/internal/colorextraction/types/TonalTest.java
new file mode 100644
index 000000000000..1e3e8e91d9ef
--- /dev/null
+++ b/tests/Internal/src/com/android/internal/colorextraction/types/TonalTest.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2017 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.internal.colorextraction.types;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import android.app.WallpaperColors;
+import android.graphics.Color;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+import android.util.Range;
+
+import com.android.internal.colorextraction.ColorExtractor.GradientColors;
+import com.android.internal.graphics.ColorUtils;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Arrays;
+
+/**
+ * Tests tonal palette generation.
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class TonalTest {
+
+    @Test
+    public void colorRange_containsColor() {
+        Tonal.ColorRange colorRange = new Tonal.ColorRange(new Range<>(0f, 50f),
+                new Range<>(0f, 1f), new Range<>(0f, 1f));
+        float[] hsl = new float[] {25, 0, 0};
+        assertTrue("Range " + colorRange + " doesn't contain " + Arrays.toString(hsl),
+                colorRange.containsColor(hsl[0], hsl[1], hsl[2]));
+    }
+
+    @Test
+    public void colorRange_doesntContainColor() {
+        Tonal.ColorRange colorRange = new Tonal.ColorRange(new Range<>(0f, 50f),
+                new Range<>(0f, 0.5f), new Range<>(0f, 0.5f));
+        float[] hsl = new float[] {100, 0, 0};
+        assertFalse("Range " + colorRange + " shouldn't contain " + Arrays.toString(hsl),
+                colorRange.containsColor(hsl[0], hsl[1], hsl[2]));
+        hsl = new float[] {0, 0.6f, 0};
+        assertFalse("Range " + colorRange + " shouldn't contain " + Arrays.toString(hsl),
+                colorRange.containsColor(hsl[0], hsl[1], hsl[2]));
+        hsl = new float[] {0, 0, 0.6f};
+        assertFalse("Range " + colorRange + " shouldn't contain " + Arrays.toString(hsl),
+                colorRange.containsColor(hsl[0], hsl[1], hsl[2]));
+    }
+
+    @Test
+    public void colorRange_excludeBlacklistedColor() {
+        // Creating a WallpaperColors object that contains *only* blacklisted colors
+        float[] hsl = Tonal.BLACKLISTED_COLORS[0].getCenter();
+        WallpaperColors colors = new WallpaperColors(Color.valueOf(ColorUtils.HSLToColor(hsl)),
+                null, null, 0);
+
+        // Make sure that palette generation will fail
+        Tonal tonal = new Tonal();
+        boolean success = tonal.extractInto(colors, new GradientColors(), new GradientColors(),
+                new GradientColors());
+        assertFalse("Cannot generate a tonal palette from blacklisted colors ", success);
+    }
+}