Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 | #define LOG_TAG "BitSet_test" |
| 18 | |
| 19 | #include <utils/BitSet.h> |
| 20 | #include <cutils/log.h> |
| 21 | #include <gtest/gtest.h> |
| 22 | #include <unistd.h> |
| 23 | |
| 24 | namespace android { |
| 25 | |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 26 | class BitSet32Test : public testing::Test { |
Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 27 | protected: |
| 28 | BitSet32 b1; |
| 29 | BitSet32 b2; |
| 30 | virtual void TearDown() { |
| 31 | b1.clear(); |
| 32 | b2.clear(); |
| 33 | } |
| 34 | }; |
| 35 | |
| 36 | |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 37 | TEST_F(BitSet32Test, BitWiseOr) { |
Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 38 | b1.markBit(2); |
| 39 | b2.markBit(4); |
| 40 | |
| 41 | BitSet32 tmp = b1 | b2; |
| 42 | EXPECT_EQ(tmp.count(), 2u); |
| 43 | EXPECT_TRUE(tmp.hasBit(2) && tmp.hasBit(4)); |
| 44 | // Check that the operator is symmetric |
| 45 | EXPECT_TRUE((b2 | b1) == (b1 | b2)); |
| 46 | |
| 47 | b1 |= b2; |
| 48 | EXPECT_EQ(b1.count(), 2u); |
| 49 | EXPECT_TRUE(b1.hasBit(2) && b1.hasBit(4)); |
| 50 | EXPECT_TRUE(b2.hasBit(4) && b2.count() == 1u); |
| 51 | } |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 52 | TEST_F(BitSet32Test, BitWiseAnd_Disjoint) { |
Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 53 | b1.markBit(2); |
| 54 | b1.markBit(4); |
| 55 | b1.markBit(6); |
| 56 | |
| 57 | BitSet32 tmp = b1 & b2; |
| 58 | EXPECT_TRUE(tmp.isEmpty()); |
| 59 | // Check that the operator is symmetric |
| 60 | EXPECT_TRUE((b2 & b1) == (b1 & b2)); |
| 61 | |
| 62 | b2 &= b1; |
| 63 | EXPECT_TRUE(b2.isEmpty()); |
| 64 | EXPECT_EQ(b1.count(), 3u); |
| 65 | EXPECT_TRUE(b1.hasBit(2) && b1.hasBit(4) && b1.hasBit(6)); |
| 66 | } |
| 67 | |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 68 | TEST_F(BitSet32Test, BitWiseAnd_NonDisjoint) { |
Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 69 | b1.markBit(2); |
| 70 | b1.markBit(4); |
| 71 | b1.markBit(6); |
| 72 | b2.markBit(3); |
| 73 | b2.markBit(6); |
| 74 | b2.markBit(9); |
| 75 | |
| 76 | BitSet32 tmp = b1 & b2; |
| 77 | EXPECT_EQ(tmp.count(), 1u); |
| 78 | EXPECT_TRUE(tmp.hasBit(6)); |
| 79 | // Check that the operator is symmetric |
| 80 | EXPECT_TRUE((b2 & b1) == (b1 & b2)); |
| 81 | |
| 82 | b1 &= b2; |
| 83 | EXPECT_EQ(b1.count(), 1u); |
| 84 | EXPECT_EQ(b2.count(), 3u); |
| 85 | EXPECT_TRUE(b2.hasBit(3) && b2.hasBit(6) && b2.hasBit(9)); |
| 86 | } |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 87 | |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 88 | TEST_F(BitSet32Test, MarkFirstUnmarkedBit) { |
| 89 | b1.markBit(1); |
| 90 | |
| 91 | b1.markFirstUnmarkedBit(); |
| 92 | EXPECT_EQ(b1.count(), 2u); |
| 93 | EXPECT_TRUE(b1.hasBit(0) && b1.hasBit(1)); |
| 94 | |
| 95 | b1.markFirstUnmarkedBit(); |
| 96 | EXPECT_EQ(b1.count(), 3u); |
| 97 | EXPECT_TRUE(b1.hasBit(0) && b1.hasBit(1) && b1.hasBit(2)); |
| 98 | } |
| 99 | |
| 100 | TEST_F(BitSet32Test, ClearFirstMarkedBit) { |
| 101 | b1.markBit(0); |
| 102 | b1.markBit(10); |
| 103 | |
| 104 | b1.clearFirstMarkedBit(); |
| 105 | EXPECT_EQ(b1.count(), 1u); |
| 106 | EXPECT_TRUE(b1.hasBit(10)); |
| 107 | |
| 108 | b1.markBit(30); |
| 109 | b1.clearFirstMarkedBit(); |
| 110 | EXPECT_EQ(b1.count(), 1u); |
| 111 | EXPECT_TRUE(b1.hasBit(30)); |
| 112 | } |
| 113 | |
| 114 | TEST_F(BitSet32Test, ClearLastMarkedBit) { |
| 115 | b1.markBit(10); |
| 116 | b1.markBit(31); |
| 117 | |
| 118 | b1.clearLastMarkedBit(); |
| 119 | EXPECT_EQ(b1.count(), 1u); |
| 120 | EXPECT_TRUE(b1.hasBit(10)); |
| 121 | |
| 122 | b1.markBit(5); |
| 123 | b1.clearLastMarkedBit(); |
| 124 | EXPECT_EQ(b1.count(), 1u); |
| 125 | EXPECT_TRUE(b1.hasBit(5)); |
| 126 | } |
| 127 | |
| 128 | TEST_F(BitSet32Test, FillAndClear) { |
| 129 | EXPECT_TRUE(b1.isEmpty()); |
| 130 | for (size_t i = 0; i < 32; i++) { |
| 131 | b1.markFirstUnmarkedBit(); |
| 132 | } |
| 133 | EXPECT_TRUE(b1.isFull()); |
| 134 | b1.clear(); |
| 135 | EXPECT_TRUE(b1.isEmpty()); |
| 136 | } |
| 137 | |
| 138 | TEST_F(BitSet32Test, GetIndexOfBit) { |
| 139 | b1.markBit(1); |
| 140 | b1.markBit(4); |
Nick Kralevich | 3e6c451 | 2015-08-17 18:26:13 -0700 | [diff] [blame] | 141 | EXPECT_EQ(0U, b1.getIndexOfBit(1)); |
| 142 | EXPECT_EQ(1U, b1.getIndexOfBit(4)); |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 143 | b1.markFirstUnmarkedBit(); |
Nick Kralevich | 3e6c451 | 2015-08-17 18:26:13 -0700 | [diff] [blame] | 144 | EXPECT_EQ(1U, b1.getIndexOfBit(1)); |
| 145 | EXPECT_EQ(2U, b1.getIndexOfBit(4)); |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 146 | } |
| 147 | |
Michael Wright | bab6ea0 | 2014-03-18 17:25:20 -0700 | [diff] [blame] | 148 | class BitSet64Test : public testing::Test { |
| 149 | protected: |
| 150 | BitSet64 b1; |
| 151 | BitSet64 b2; |
| 152 | virtual void TearDown() { |
| 153 | b1.clear(); |
| 154 | b2.clear(); |
| 155 | } |
| 156 | }; |
| 157 | |
| 158 | |
| 159 | TEST_F(BitSet64Test, BitWiseOr) { |
| 160 | b1.markBit(20); |
| 161 | b2.markBit(40); |
| 162 | |
| 163 | BitSet64 tmp = b1 | b2; |
| 164 | EXPECT_EQ(tmp.count(), 2u); |
| 165 | EXPECT_TRUE(tmp.hasBit(20) && tmp.hasBit(40)); |
| 166 | // Check that the operator is symmetric |
| 167 | EXPECT_TRUE((b2 | b1) == (b1 | b2)); |
| 168 | |
| 169 | b1 |= b2; |
| 170 | EXPECT_EQ(b1.count(), 2u); |
| 171 | EXPECT_TRUE(b1.hasBit(20) && b1.hasBit(40)); |
| 172 | EXPECT_TRUE(b2.hasBit(40) && b2.count() == 1u); |
| 173 | } |
| 174 | TEST_F(BitSet64Test, BitWiseAnd_Disjoint) { |
| 175 | b1.markBit(20); |
| 176 | b1.markBit(40); |
| 177 | b1.markBit(60); |
| 178 | |
| 179 | BitSet64 tmp = b1 & b2; |
| 180 | EXPECT_TRUE(tmp.isEmpty()); |
| 181 | // Check that the operator is symmetric |
| 182 | EXPECT_TRUE((b2 & b1) == (b1 & b2)); |
| 183 | |
| 184 | b2 &= b1; |
| 185 | EXPECT_TRUE(b2.isEmpty()); |
| 186 | EXPECT_EQ(b1.count(), 3u); |
| 187 | EXPECT_TRUE(b1.hasBit(20) && b1.hasBit(40) && b1.hasBit(60)); |
| 188 | } |
| 189 | |
| 190 | TEST_F(BitSet64Test, BitWiseAnd_NonDisjoint) { |
| 191 | b1.markBit(20); |
| 192 | b1.markBit(40); |
| 193 | b1.markBit(60); |
| 194 | b2.markBit(30); |
| 195 | b2.markBit(60); |
| 196 | b2.markBit(63); |
| 197 | |
| 198 | BitSet64 tmp = b1 & b2; |
| 199 | EXPECT_EQ(tmp.count(), 1u); |
| 200 | EXPECT_TRUE(tmp.hasBit(60)); |
| 201 | // Check that the operator is symmetric |
| 202 | EXPECT_TRUE((b2 & b1) == (b1 & b2)); |
| 203 | |
| 204 | b1 &= b2; |
| 205 | EXPECT_EQ(b1.count(), 1u); |
| 206 | EXPECT_EQ(b2.count(), 3u); |
| 207 | EXPECT_TRUE(b2.hasBit(30) && b2.hasBit(60) && b2.hasBit(63)); |
| 208 | } |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 209 | |
| 210 | TEST_F(BitSet64Test, MarkFirstUnmarkedBit) { |
| 211 | b1.markBit(1); |
| 212 | |
| 213 | b1.markFirstUnmarkedBit(); |
| 214 | EXPECT_EQ(b1.count(), 2u); |
| 215 | EXPECT_TRUE(b1.hasBit(0) && b1.hasBit(1)); |
| 216 | |
| 217 | b1.markFirstUnmarkedBit(); |
| 218 | EXPECT_EQ(b1.count(), 3u); |
| 219 | EXPECT_TRUE(b1.hasBit(0) && b1.hasBit(1) && b1.hasBit(2)); |
| 220 | } |
| 221 | |
| 222 | TEST_F(BitSet64Test, ClearFirstMarkedBit) { |
| 223 | b1.markBit(0); |
| 224 | b1.markBit(10); |
| 225 | |
| 226 | b1.clearFirstMarkedBit(); |
| 227 | EXPECT_EQ(b1.count(), 1u); |
| 228 | EXPECT_TRUE(b1.hasBit(10)); |
| 229 | |
| 230 | b1.markBit(50); |
| 231 | b1.clearFirstMarkedBit(); |
| 232 | EXPECT_EQ(b1.count(), 1u); |
| 233 | EXPECT_TRUE(b1.hasBit(50)); |
| 234 | } |
| 235 | |
| 236 | TEST_F(BitSet64Test, ClearLastMarkedBit) { |
| 237 | b1.markBit(10); |
| 238 | b1.markBit(63); |
| 239 | |
| 240 | b1.clearLastMarkedBit(); |
| 241 | EXPECT_EQ(b1.count(), 1u); |
| 242 | EXPECT_TRUE(b1.hasBit(10)); |
| 243 | |
| 244 | b1.markBit(5); |
| 245 | b1.clearLastMarkedBit(); |
| 246 | EXPECT_EQ(b1.count(), 1u); |
| 247 | EXPECT_TRUE(b1.hasBit(5)); |
| 248 | } |
| 249 | |
| 250 | TEST_F(BitSet64Test, FillAndClear) { |
| 251 | EXPECT_TRUE(b1.isEmpty()); |
| 252 | for (size_t i = 0; i < 64; i++) { |
| 253 | b1.markFirstUnmarkedBit(); |
| 254 | } |
| 255 | EXPECT_TRUE(b1.isFull()); |
| 256 | b1.clear(); |
| 257 | EXPECT_TRUE(b1.isEmpty()); |
| 258 | } |
| 259 | |
| 260 | TEST_F(BitSet64Test, GetIndexOfBit) { |
| 261 | b1.markBit(10); |
| 262 | b1.markBit(40); |
Nick Kralevich | 3e6c451 | 2015-08-17 18:26:13 -0700 | [diff] [blame] | 263 | EXPECT_EQ(0U, b1.getIndexOfBit(10)); |
| 264 | EXPECT_EQ(1U, b1.getIndexOfBit(40)); |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 265 | b1.markFirstUnmarkedBit(); |
Nick Kralevich | 3e6c451 | 2015-08-17 18:26:13 -0700 | [diff] [blame] | 266 | EXPECT_EQ(1U, b1.getIndexOfBit(10)); |
| 267 | EXPECT_EQ(2U, b1.getIndexOfBit(40)); |
Michael Wright | 2ec0645 | 2014-03-19 11:23:01 -0700 | [diff] [blame] | 268 | } |
| 269 | |
Michael Wright | d614ee4 | 2013-05-21 14:11:34 -0700 | [diff] [blame] | 270 | } // namespace android |