| /* |
| * 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 android.hardware.display; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import android.os.Parcel; |
| import android.util.Pair; |
| import android.util.Xml; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import com.android.internal.util.FastXmlSerializer; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class BrightnessConfigurationTest { |
| private static final float[] LUX_LEVELS = { |
| 0f, |
| 10f, |
| 100f, |
| }; |
| |
| private static final float[] NITS_LEVELS = { |
| 1f, |
| 90f, |
| 100f, |
| }; |
| |
| @Test |
| public void testSetCurveIsUnmodified() { |
| BrightnessConfiguration.Builder builder = new BrightnessConfiguration.Builder( |
| LUX_LEVELS, NITS_LEVELS); |
| BrightnessConfiguration config = builder.build(); |
| Pair<float[], float[]> curve = config.getCurve(); |
| assertArrayEquals(LUX_LEVELS, curve.first, "lux"); |
| assertArrayEquals(NITS_LEVELS, curve.second, "nits"); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testCurveMustHaveZeroLuxPoint() { |
| float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length); |
| lux[0] = 1f; |
| new BrightnessConfiguration.Builder(lux, NITS_LEVELS); |
| } |
| |
| @Test(expected = NullPointerException.class) |
| public void testCurveMustNotHaveNullArrays() { |
| new BrightnessConfiguration.Builder(null, null); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void testCurveMustNotHaveEmptyArrays() { |
| new BrightnessConfiguration.Builder(new float[0], new float[0]); |
| } |
| |
| @Test |
| public void testCurveMustNotHaveArraysOfDifferentLengths() { |
| assertThrows(IllegalArgumentException.class, () -> { |
| float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length + 1); |
| lux[lux.length - 1] = lux[lux.length - 2] + 1; |
| new BrightnessConfiguration.Builder(lux, NITS_LEVELS); |
| }); |
| |
| assertThrows(IllegalArgumentException.class, () -> { |
| float[] nits = Arrays.copyOf(NITS_LEVELS, NITS_LEVELS.length + 1); |
| nits[nits.length - 1] = nits[nits.length - 2] + 1; |
| new BrightnessConfiguration.Builder(LUX_LEVELS, nits); |
| }); |
| } |
| |
| @Test |
| public void testCurvesMustNotContainNaN() { |
| assertThrows(IllegalArgumentException.class, () -> { |
| float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length); |
| lux[lux.length - 1] = Float.NaN; |
| new BrightnessConfiguration.Builder(lux, NITS_LEVELS); |
| }); |
| |
| assertThrows(IllegalArgumentException.class, () -> { |
| float[] nits = Arrays.copyOf(NITS_LEVELS, NITS_LEVELS.length); |
| nits[nits.length - 1] = Float.NaN; |
| new BrightnessConfiguration.Builder(LUX_LEVELS, nits); |
| }); |
| } |
| |
| @Test |
| public void testParceledConfigIsEquivalent() { |
| BrightnessConfiguration.Builder builder = |
| new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration config = builder.build(); |
| Parcel p = Parcel.obtain(); |
| p.writeParcelable(config, 0 /*flags*/); |
| p.setDataPosition(0); |
| BrightnessConfiguration newConfig = |
| p.readParcelable(BrightnessConfiguration.class.getClassLoader()); |
| assertEquals(config, newConfig); |
| } |
| |
| @Test |
| public void testWriteReadXml() throws IOException, XmlPullParserException { |
| BrightnessConfiguration.Builder builder = |
| new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration config = builder.build(); |
| |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| XmlSerializer out = new FastXmlSerializer(); |
| out.setOutput(baos, StandardCharsets.UTF_8.name()); |
| out.startDocument(null, true); |
| config.saveToXml(out); |
| out.endDocument(); |
| baos.flush(); |
| |
| ByteArrayInputStream input = new ByteArrayInputStream(baos.toByteArray()); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(input, StandardCharsets.UTF_8.name()); |
| BrightnessConfiguration loadedConfig = BrightnessConfiguration.loadFromXml(parser); |
| |
| assertEquals(config, loadedConfig); |
| } |
| |
| @Test |
| public void testEquals() { |
| BrightnessConfiguration.Builder builder = |
| new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration baseConfig = builder.build(); |
| |
| builder = new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration identicalConfig = builder.build(); |
| assertEquals(baseConfig, identicalConfig); |
| assertEquals("hashCodes must be equal for identical configs", |
| baseConfig.hashCode(), identicalConfig.hashCode()); |
| |
| float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length); |
| lux[lux.length - 1] = lux[lux.length - 1] * 2; |
| builder = new BrightnessConfiguration.Builder(lux, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration luxDifferConfig = builder.build(); |
| assertNotEquals(baseConfig, luxDifferConfig); |
| |
| float[] nits = Arrays.copyOf(NITS_LEVELS, NITS_LEVELS.length); |
| nits[nits.length - 1] = nits[nits.length - 1] * 2; |
| builder = new BrightnessConfiguration.Builder(LUX_LEVELS, nits); |
| builder.setShouldCollectColorSamples(true); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration nitsDifferConfig = builder.build(); |
| assertNotEquals(baseConfig, nitsDifferConfig); |
| |
| builder = new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.addCorrectionByCategory(3, |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| builder.addCorrectionByPackageName("a.package.name", |
| BrightnessCorrection.createScaleAndTranslateLog(1.0f, 2.0f)); |
| BrightnessConfiguration colorCollectionDiffers = builder.build(); |
| assertNotEquals(baseConfig, colorCollectionDiffers); |
| |
| builder = new BrightnessConfiguration.Builder(LUX_LEVELS, NITS_LEVELS); |
| builder.setShouldCollectColorSamples(true); |
| BrightnessConfiguration correctionsDiffer = builder.build(); |
| assertNotEquals(baseConfig, correctionsDiffer); |
| } |
| |
| private static void assertArrayEquals(float[] expected, float[] actual, String name) { |
| assertEquals("Expected " + name + " arrays to be the same length!", |
| expected.length, actual.length); |
| for (int i = 0; i < expected.length; i++) { |
| assertEquals("Expected " + name + " arrays to be equivalent when value " + i |
| + "differs", expected[i], actual[i], 0.01 /*tolerance*/); |
| } |
| } |
| |
| private interface ExceptionRunnable { |
| void run() throws Exception; |
| } |
| |
| private static void assertThrows(Class<? extends Throwable> exceptionClass, |
| ExceptionRunnable r) { |
| try { |
| r.run(); |
| } catch (Throwable e) { |
| assertTrue("Expected exception type " + exceptionClass.getName() + " but got " |
| + e.getClass().getName(), exceptionClass.isAssignableFrom(e.getClass())); |
| return; |
| } |
| fail("Expected exception type " + exceptionClass.getName() |
| + ", but no exception was thrown"); |
| } |
| } |