diff options
Diffstat (limited to 'tests/src/com/android/gallery3d/common/UtilsTest.java')
-rw-r--r-- | tests/src/com/android/gallery3d/common/UtilsTest.java | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/tests/src/com/android/gallery3d/common/UtilsTest.java b/tests/src/com/android/gallery3d/common/UtilsTest.java new file mode 100644 index 000000000..a20ebeb2f --- /dev/null +++ b/tests/src/com/android/gallery3d/common/UtilsTest.java @@ -0,0 +1,202 @@ +/* + * Copyright (C) 2010 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.gallery3d.common; + +import android.test.AndroidTestCase; +import android.test.suitebuilder.annotation.SmallTest; +import android.util.Log; + +public class UtilsTest extends AndroidTestCase { + private static final String TAG = "UtilsTest"; + + private static final int [] testData = new int [] { + /* outWidth, outHeight, minSideLength, maxNumOfPixels, sample size */ + 1, 1, BitmapUtils.UNCONSTRAINED, BitmapUtils.UNCONSTRAINED, 1, + 1, 1, 1, 1, 1, + 100, 100, 100, 10000, 1, + 100, 100, 100, 2500, 2, + 99, 66, 33, 10000, 2, + 66, 99, 33, 10000, 2, + 99, 66, 34, 10000, 1, + 99, 66, 22, 10000, 4, + 99, 66, 16, 10000, 4, + + 10000, 10000, 20000, 1000000, 16, + + 100, 100, 100, 10000, 1, // 1 + 100, 100, 50, 10000, 2, // 2 + 100, 100, 30, 10000, 4, // 3->4 + 100, 100, 22, 10000, 4, // 4 + 100, 100, 20, 10000, 8, // 5->8 + 100, 100, 11, 10000, 16, // 9->16 + 100, 100, 5, 10000, 24, // 20->24 + 100, 100, 2, 10000, 56, // 50->56 + + 100, 100, 100, 10000 - 1, 2, // a bit less than 1 + 100, 100, 100, 10000 / (2 * 2) - 1, 4, // a bit less than 2 + 100, 100, 100, 10000 / (3 * 3) - 1, 4, // a bit less than 3 + 100, 100, 100, 10000 / (4 * 4) - 1, 8, // a bit less than 4 + 100, 100, 100, 10000 / (8 * 8) - 1, 16, // a bit less than 8 + 100, 100, 100, 10000 / (16 * 16) - 1, 24, // a bit less than 16 + 100, 100, 100, 10000 / (24 * 24) - 1, 32, // a bit less than 24 + 100, 100, 100, 10000 / (32 * 32) - 1, 40, // a bit less than 32 + + 640, 480, 480, BitmapUtils.UNCONSTRAINED, 1, // 1 + 640, 480, 240, BitmapUtils.UNCONSTRAINED, 2, // 2 + 640, 480, 160, BitmapUtils.UNCONSTRAINED, 4, // 3->4 + 640, 480, 120, BitmapUtils.UNCONSTRAINED, 4, // 4 + 640, 480, 96, BitmapUtils.UNCONSTRAINED, 8, // 5->8 + 640, 480, 80, BitmapUtils.UNCONSTRAINED, 8, // 6->8 + 640, 480, 60, BitmapUtils.UNCONSTRAINED, 8, // 8 + 640, 480, 48, BitmapUtils.UNCONSTRAINED, 16, // 10->16 + 640, 480, 40, BitmapUtils.UNCONSTRAINED, 16, // 12->16 + 640, 480, 30, BitmapUtils.UNCONSTRAINED, 16, // 16 + 640, 480, 24, BitmapUtils.UNCONSTRAINED, 24, // 20->24 + 640, 480, 20, BitmapUtils.UNCONSTRAINED, 24, // 24 + 640, 480, 16, BitmapUtils.UNCONSTRAINED, 32, // 30->32 + 640, 480, 12, BitmapUtils.UNCONSTRAINED, 40, // 40 + 640, 480, 10, BitmapUtils.UNCONSTRAINED, 48, // 48 + 640, 480, 8, BitmapUtils.UNCONSTRAINED, 64, // 60->64 + 640, 480, 6, BitmapUtils.UNCONSTRAINED, 80, // 80 + 640, 480, 4, BitmapUtils.UNCONSTRAINED, 120, // 120 + 640, 480, 3, BitmapUtils.UNCONSTRAINED, 160, // 160 + 640, 480, 2, BitmapUtils.UNCONSTRAINED, 240, // 240 + 640, 480, 1, BitmapUtils.UNCONSTRAINED, 480, // 480 + + 640, 480, BitmapUtils.UNCONSTRAINED, BitmapUtils.UNCONSTRAINED, 1, + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480, 1, // 1 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 - 1, 2, // a bit less than 1 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 4, 2, // 2 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 4 - 1, 4, // a bit less than 2 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 9, 4, // 3 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 9 - 1, 4, // a bit less than 3 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 16, 4, // 4 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 16 - 1, 8, // a bit less than 4 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 64, 8, // 8 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 64 - 1, 16, // a bit less than 8 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 256, 16, // 16 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / 256 - 1, 24, // a bit less than 16 + 640, 480, BitmapUtils.UNCONSTRAINED, 640 * 480 / (24 * 24) - 1, 32, // a bit less than 24 + }; + + @SmallTest + public void testComputeSampleSize() { + + for (int i = 0; i < testData.length; i += 5) { + int w = testData[i]; + int h = testData[i + 1]; + int minSide = testData[i + 2]; + int maxPixels = testData[i + 3]; + int sampleSize = testData[i + 4]; + int result = BitmapUtils.computeSampleSize(w, h, minSide, maxPixels); + if (result != sampleSize) { + Log.v(TAG, w + "x" + h + ", minSide = " + minSide + ", maxPixels = " + + maxPixels + ", sampleSize = " + sampleSize + ", result = " + + result); + } + assertTrue(sampleSize == result); + } + } + + public void testAssert() { + // This should not throw an exception. + Utils.assertTrue(true); + + // This should throw an exception. + try { + Utils.assertTrue(false); + fail(); + } catch (AssertionError ex) { + // expected. + } + } + + public void testCheckNotNull() { + // These should not throw an expection. + Utils.checkNotNull(new Object()); + Utils.checkNotNull(0); + Utils.checkNotNull(""); + + // This should throw an expection. + try { + Utils.checkNotNull(null); + fail(); + } catch (NullPointerException ex) { + // expected. + } + } + + public void testEquals() { + Object a = new Object(); + Object b = new Object(); + + assertTrue(Utils.equals(null, null)); + assertTrue(Utils.equals(a, a)); + assertFalse(Utils.equals(null, a)); + assertFalse(Utils.equals(a, null)); + assertFalse(Utils.equals(a, b)); + } + + public void testNextPowerOf2() { + int[] q = new int[] {1, 2, 3, 4, 5, 6, 10, 65535, (1 << 30) - 1, (1 << 30)}; + int[] a = new int[] {1, 2, 4, 4, 8, 8, 16, 65536, (1 << 30) , (1 << 30)}; + + for (int i = 0; i < q.length; i++) { + assertEquals(a[i], Utils.nextPowerOf2(q[i])); + } + + int[] e = new int[] {0, -1, -2, -4, -65536, (1 << 30) + 1, Integer.MAX_VALUE}; + + for (int v : e) { + try { + Utils.nextPowerOf2(v); + fail(); + } catch (IllegalArgumentException ex) { + // expected. + } + } + } + + public void testClamp() { + assertEquals(1000, Utils.clamp(300, 1000, 2000)); + assertEquals(1300, Utils.clamp(1300, 1000, 2000)); + assertEquals(2000, Utils.clamp(2300, 1000, 2000)); + + assertEquals(0.125f, Utils.clamp(0.1f, 0.125f, 0.5f)); + assertEquals(0.25f, Utils.clamp(0.25f, 0.125f, 0.5f)); + assertEquals(0.5f, Utils.clamp(0.9f, 0.125f, 0.5f)); + } + + public void testIsOpaque() { + assertTrue(Utils.isOpaque(0xFF000000)); + assertTrue(Utils.isOpaque(0xFFFFFFFF)); + assertTrue(Utils.isOpaque(0xFF123456)); + + assertFalse(Utils.isOpaque(0xFEFFFFFF)); + assertFalse(Utils.isOpaque(0x8FFFFFFF)); + assertFalse(Utils.isOpaque(0x00FF0000)); + assertFalse(Utils.isOpaque(0x5500FF00)); + assertFalse(Utils.isOpaque(0xAA0000FF)); + } + + public static void assertFloatEq(float expected, float actual) { + if (Math.abs(actual - expected) > 1e-6) { + Log.v(TAG, "expected: " + expected + ", actual: " + actual); + fail(); + } + } +} |