1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.mediaframeworktest.unit; 18 19 import android.test.suitebuilder.annotation.SmallTest; 20 import android.util.Range; 21 import android.util.Rational; 22 23 /** 24 * <pre> 25 * adb shell am instrument \ 26 * -e class 'com.android.mediaframeworktest.unit.RangeTest' \ 27 * -w com.android.mediaframeworktest/.MediaFrameworkUnitTestRunner 28 * </pre> 29 */ 30 public class RangeTest extends junit.framework.TestCase { 31 32 @SmallTest 33 public void testConstructor() { 34 // Trivial, same range 35 Range<Integer> intRange = new Range<Integer>(1, 1); 36 37 assertLower(intRange, 1); 38 assertUpper(intRange, 1); 39 40 // Different values in range 41 Range<Integer> intRange2 = new Range<Integer>(100, 200); 42 assertLower(intRange2, 100); 43 assertUpper(intRange2, 200); 44 45 Range<Float> floatRange = new Range<Float>(Float.NEGATIVE_INFINITY, 46 Float.POSITIVE_INFINITY); 47 assertLower(floatRange, Float.NEGATIVE_INFINITY); 48 assertUpper(floatRange, Float.POSITIVE_INFINITY); 49 } 50 51 @SmallTest 52 public void testIllegalValues() { 53 // Test NPEs 54 try { 55 new Range<Integer>(null, null); 56 fail("Expected exception to be thrown for (null, null)"); 57 } catch (NullPointerException e) { 58 // OK: both args are null 59 } 60 61 try { 62 new Range<Integer>(null, 0); 63 fail("Expected exception to be thrown for (null, 0)"); 64 } catch (NullPointerException e) { 65 // OK: left arg is null 66 } 67 68 try { 69 new Range<Integer>(0, null); 70 fail("Expected exception to be thrown for (0, null)"); 71 } catch (NullPointerException e) { 72 // OK: right arg is null 73 } 74 75 // Test IAEs 76 77 try { 78 new Range<Integer>(50, -50); 79 fail("Expected exception to be thrown for (50, -50)"); 80 } catch (IllegalArgumentException e) { 81 // OK: 50 > -50 so it fails 82 } 83 84 try { 85 new Range<Float>(0.0f, Float.NEGATIVE_INFINITY); 86 fail("Expected exception to be thrown for (0.0f, -Infinity)"); 87 } catch (IllegalArgumentException e) { 88 // OK: 0.0f is > NEGATIVE_INFINITY, so it fails 89 } 90 } 91 92 @SmallTest 93 public void testEquals() { 94 Range<Float> oneHalf = Range.create(1.0f, 2.0f); 95 Range<Float> oneHalf2 = new Range<Float>(1.0f, 2.0f); 96 assertEquals(oneHalf, oneHalf2); 97 assertHashCodeEquals(oneHalf, oneHalf2); 98 99 Range<Float> twoThirds = new Range<Float>(2.0f, 3.0f); 100 Range<Float> twoThirds2 = Range.create(2.0f, 3.0f); 101 assertEquals(twoThirds, twoThirds2); 102 assertHashCodeEquals(twoThirds, twoThirds2); 103 104 Range<Rational> negativeOneTenthPositiveOneTenth = 105 new Range<Rational>(new Rational(-1, 10), new Rational(1, 10)); 106 Range<Rational> negativeOneTenthPositiveOneTenth2 = 107 Range.create(new Rational(-1, 10), new Rational(1, 10)); 108 assertEquals(negativeOneTenthPositiveOneTenth, negativeOneTenthPositiveOneTenth2); 109 assertHashCodeEquals(negativeOneTenthPositiveOneTenth, negativeOneTenthPositiveOneTenth2); 110 } 111 112 @SmallTest 113 public void testInRange() { 114 Range<Integer> hundredOneTwo = Range.create(100, 200); 115 116 assertInRange(hundredOneTwo, 100); 117 assertInRange(hundredOneTwo, 200); 118 assertInRange(hundredOneTwo, 150); 119 assertOutOfRange(hundredOneTwo, 99); 120 assertOutOfRange(hundredOneTwo, 201); 121 assertOutOfRange(hundredOneTwo, 100000); 122 123 Range<Float> infinities = Range.create(Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY); 124 125 assertInRange(infinities, Float.NEGATIVE_INFINITY); 126 assertInRange(infinities, Float.POSITIVE_INFINITY); 127 assertInRange(infinities, 0.0f); 128 assertOutOfRange(infinities, Float.NaN); 129 130 Range<Rational> negativeOneTenthPositiveOneTenth = 131 new Range<Rational>(new Rational(-1, 10), new Rational(1, 10)); 132 assertInRange(negativeOneTenthPositiveOneTenth, new Rational(-1, 10)); 133 assertInRange(negativeOneTenthPositiveOneTenth, new Rational(1, 10)); 134 assertInRange(negativeOneTenthPositiveOneTenth, Rational.ZERO); 135 assertOutOfRange(negativeOneTenthPositiveOneTenth, new Rational(-100, 1)); 136 assertOutOfRange(negativeOneTenthPositiveOneTenth, new Rational(100, 1)); 137 } 138 139 private static <T extends Comparable<? super T>> void assertInRange(Range<T> object, T needle) { 140 assertAction("in-range", object, needle, true, object.contains(needle)); 141 } 142 143 private static <T extends Comparable<? super T>> void assertOutOfRange(Range<T> object, 144 T needle) { 145 assertAction("out-of-range", object, needle, false, object.contains(needle)); 146 } 147 148 private static <T extends Comparable<? super T>> void assertUpper(Range<T> object, T expected) { 149 assertAction("upper", object, expected, object.getUpper()); 150 } 151 152 private static <T extends Comparable<? super T>> void assertLower(Range<T> object, T expected) { 153 assertAction("lower", object, expected, object.getLower()); 154 } 155 156 private static <T, T2> void assertAction(String action, T object, T2 expected, 157 T2 actual) { 158 assertEquals("Expected " + object + " " + action + " to be ", 159 expected, actual); 160 } 161 162 private static <T, T2> void assertAction(String action, T object, T2 needle, boolean expected, 163 boolean actual) { 164 String expectedMessage = expected ? action : ("not " + action); 165 assertEquals("Expected " + needle + " to be " + expectedMessage + " of " + object, 166 expected, actual); 167 } 168 169 private static <T extends Comparable<? super T>> void assertHashCodeEquals( 170 Range<T> left, Range<T> right) { 171 assertEquals("Left hash code for " + left + 172 " expected to be equal to right hash code for " + right, 173 left.hashCode(), right.hashCode()); 174 } 175 } 176
