1 /* 2 * Copyright (C) 2015 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.documentsui.selection; 18 19 import static junit.framework.Assert.assertEquals; 20 import static junit.framework.Assert.assertFalse; 21 import static junit.framework.Assert.assertTrue; 22 23 import android.support.test.filters.SmallTest; 24 import android.support.test.runner.AndroidJUnit4; 25 26 import com.google.common.collect.Sets; 27 28 import org.junit.Before; 29 import org.junit.Test; 30 import org.junit.runner.RunWith; 31 32 import java.util.HashSet; 33 import java.util.Set; 34 35 @RunWith(AndroidJUnit4.class) 36 @SmallTest 37 public class SelectionTest { 38 39 private Selection selection; 40 41 private String[] ids = new String[]{ 42 "foo", 43 "43", 44 "auth|id=@53di*/f3#d" 45 }; 46 47 @Before 48 public void setUp() throws Exception { 49 selection = new Selection(); 50 selection.add(ids[0]); 51 selection.add(ids[1]); 52 selection.add(ids[2]); 53 } 54 55 @Test 56 public void testAdd() { 57 // We added in setUp. 58 assertEquals(3, selection.size()); 59 assertContains(ids[0]); 60 assertContains(ids[1]); 61 assertContains(ids[2]); 62 } 63 64 @Test 65 public void testRemove() { 66 selection.remove(ids[0]); 67 selection.remove(ids[2]); 68 assertEquals(1, selection.size()); 69 assertContains(ids[1]); 70 } 71 72 @Test 73 public void testClear() { 74 selection.clear(); 75 assertEquals(0, selection.size()); 76 } 77 78 @Test 79 public void testIsEmpty() { 80 assertTrue(new Selection().isEmpty()); 81 selection.clear(); 82 assertTrue(selection.isEmpty()); 83 } 84 85 @Test 86 public void testSize() { 87 Selection other = new Selection(); 88 for (int i = 0; i < selection.size(); i++) { 89 other.add(ids[i]); 90 } 91 assertEquals(selection.size(), other.size()); 92 } 93 94 @Test 95 public void testEqualsSelf() { 96 assertEquals(selection, selection); 97 } 98 99 @Test 100 public void testEqualsOther() { 101 Selection other = new Selection(); 102 other.add(ids[0]); 103 other.add(ids[1]); 104 other.add(ids[2]); 105 assertEquals(selection, other); 106 assertEquals(selection.hashCode(), other.hashCode()); 107 } 108 109 @Test 110 public void testEqualsCopy() { 111 Selection other = new Selection(); 112 other.copyFrom(selection); 113 assertEquals(selection, other); 114 assertEquals(selection.hashCode(), other.hashCode()); 115 } 116 117 @Test 118 public void testNotEquals() { 119 Selection other = new Selection(); 120 other.add("foobar"); 121 assertFalse(selection.equals(other)); 122 } 123 124 @Test 125 public void testIntersection_empty0() { 126 Selection testSelection = new Selection(); 127 testSelection.intersect(new HashSet<String>()); 128 assertTrue(testSelection.isEmpty()); 129 } 130 131 @Test 132 public void testIntersection_empty1() { 133 Selection testSelection = new Selection(); 134 testSelection.intersect(Sets.newHashSet("foo")); 135 assertTrue(testSelection.isEmpty()); 136 } 137 138 @Test 139 public void testIntersection_empty2() { 140 assertFalse(selection.isEmpty()); 141 selection.intersect(new HashSet<String>()); 142 assertTrue(selection.isEmpty()); 143 } 144 145 @Test 146 public void testIntersection_exclusive() { 147 String[] ids0 = new String[]{"foo", "bar", "baz"}; 148 String[] ids1 = new String[]{"0", "1", "2"}; 149 150 Selection testSelection = new Selection(); 151 testSelection.add(ids0[0]); 152 testSelection.add(ids0[1]); 153 testSelection.add(ids0[2]); 154 155 Set<String> set = Sets.newHashSet(ids1); 156 testSelection.intersect(set); 157 158 assertTrue(testSelection.isEmpty()); 159 } 160 161 @Test 162 public void testIntersection_subset() { 163 String[] ids0 = new String[]{"foo", "bar", "baz"}; 164 String[] ids1 = new String[]{"0", "baz", "1", "foo", "2"}; 165 166 Selection testSelection = new Selection(); 167 testSelection.add(ids0[0]); 168 testSelection.add(ids0[1]); 169 testSelection.add(ids0[2]); 170 171 testSelection.intersect(Sets.newHashSet(ids1)); 172 173 assertTrue(testSelection.contains("foo")); 174 assertFalse(testSelection.contains("bar")); 175 assertTrue(testSelection.contains("baz")); 176 } 177 178 @Test 179 public void testIntersection_all() { 180 String[] ids0 = new String[]{"foo", "bar", "baz"}; 181 String[] ids1 = new String[]{"0", "baz", "1", "foo", "2", "bar"}; 182 183 Selection testSelection = new Selection(); 184 testSelection.add(ids0[0]); 185 testSelection.add(ids0[1]); 186 testSelection.add(ids0[2]); 187 188 Selection control = new Selection(); 189 control.copyFrom(testSelection); 190 191 testSelection.intersect(Sets.newHashSet(ids1)); 192 193 assertTrue(testSelection.equals(control)); 194 } 195 196 private void assertContains(String id) { 197 String err = String.format("Selection %s does not contain %s", selection, id); 198 assertTrue(err, selection.contains(id)); 199 } 200 } 201
