Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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.internal.os; |
| 18 | |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 19 | import static org.junit.Assert.assertArrayEquals; |
| 20 | import static org.junit.Assert.assertEquals; |
| 21 | import static org.junit.Assert.assertFalse; |
| 22 | import static org.junit.Assert.assertNull; |
| 23 | import static org.junit.Assert.assertTrue; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 24 | import static org.mockito.Mockito.verify; |
| 25 | import static org.mockito.Mockito.verifyNoMoreInteractions; |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 26 | import static org.mockito.Mockito.verifyZeroInteractions; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 27 | import static org.mockito.Mockito.when; |
| 28 | |
| 29 | import android.support.test.filters.SmallTest; |
| 30 | import android.support.test.runner.AndroidJUnit4; |
| 31 | |
| 32 | import org.junit.Before; |
| 33 | import org.junit.Test; |
| 34 | import org.junit.runner.RunWith; |
| 35 | import org.mockito.Mock; |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 36 | import org.mockito.Mockito; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 37 | import org.mockito.MockitoAnnotations; |
| 38 | |
| 39 | import java.io.BufferedReader; |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 40 | import java.util.Arrays; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 41 | |
| 42 | /** |
| 43 | * Test class for {@link KernelUidCpuFreqTimeReader}. |
| 44 | * |
| 45 | * To run the tests, use |
| 46 | * |
| 47 | * runtest -c com.android.internal.os.KernelUidCpuFreqTimeReaderTest frameworks-core |
| 48 | * |
| 49 | * or the following steps: |
| 50 | * |
| 51 | * Build: m FrameworksCoreTests |
| 52 | * Install: adb install -r \ |
| 53 | * ${ANDROID_PRODUCT_OUT}/data/app/FrameworksCoreTests/FrameworksCoreTests.apk |
| 54 | * Run: adb shell am instrument -e class com.android.internal.os.KernelUidCpuFreqTimeReaderTest -w \ |
| 55 | * com.android.frameworks.coretests/android.support.test.runner.AndroidJUnitRunner |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 56 | * |
| 57 | * or |
| 58 | * |
| 59 | * bit FrameworksCoreTests:com.android.internal.os.KernelUidCpuFreqTimeReaderTest |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 60 | */ |
| 61 | @SmallTest |
| 62 | @RunWith(AndroidJUnit4.class) |
| 63 | public class KernelUidCpuFreqTimeReaderTest { |
| 64 | @Mock private BufferedReader mBufferedReader; |
| 65 | @Mock private KernelUidCpuFreqTimeReader.Callback mCallback; |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 66 | @Mock private PowerProfile mPowerProfile; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 67 | |
| 68 | private KernelUidCpuFreqTimeReader mKernelUidCpuFreqTimeReader; |
| 69 | |
| 70 | @Before |
| 71 | public void setUp() { |
| 72 | MockitoAnnotations.initMocks(this); |
| 73 | mKernelUidCpuFreqTimeReader = new KernelUidCpuFreqTimeReader(); |
| 74 | } |
| 75 | |
| 76 | @Test |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 77 | public void testReadFreqs_perClusterTimesNotAvailable() throws Exception { |
| 78 | final long[][] freqs = { |
| 79 | {1, 12, 123, 1234}, |
| 80 | {1, 12, 123, 23, 123, 1234, 12345, 123456}, |
| 81 | {1, 12, 123, 23, 123, 1234, 12345, 123456, 12, 123, 12345}, |
| 82 | {1, 12, 123, 23, 2345, 234567} |
| 83 | }; |
| 84 | final int[] numClusters = {2, 2, 3, 1}; |
| 85 | final int[][] numFreqs = {{3, 6}, {4, 5}, {3, 5, 4}, {3}}; |
| 86 | for (int i = 0; i < freqs.length; ++i) { |
| 87 | setCpuClusterFreqs(numClusters[i], numFreqs[i]); |
| 88 | when(mBufferedReader.readLine()).thenReturn(getFreqsLine(freqs[i])); |
| 89 | long[] actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs( |
| 90 | mBufferedReader, mPowerProfile); |
| 91 | assertArrayEquals(freqs[i], actualFreqs); |
| 92 | verifyZeroInteractions(mCallback); |
| 93 | final String errMsg = String.format("Freqs=%s, nClusters=%d, nFreqs=%s", |
| 94 | Arrays.toString(freqs[i]), numClusters[i], Arrays.toString(numFreqs[i])); |
| 95 | assertFalse(errMsg, mKernelUidCpuFreqTimeReader.perClusterTimesAvailable()); |
| 96 | |
| 97 | // Verify that a second call won't read the proc file again |
| 98 | Mockito.reset(mBufferedReader); |
| 99 | actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs(mPowerProfile); |
| 100 | assertArrayEquals(freqs[i], actualFreqs); |
| 101 | assertFalse(errMsg, mKernelUidCpuFreqTimeReader.perClusterTimesAvailable()); |
| 102 | |
| 103 | // Prepare for next iteration |
| 104 | Mockito.reset(mBufferedReader, mPowerProfile); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | @Test |
| 109 | public void testReadFreqs_perClusterTimesAvailable() throws Exception { |
| 110 | final long[][] freqs = { |
| 111 | {1, 12, 123, 1234}, |
| 112 | {1, 12, 123, 23, 123, 1234, 12345, 123456}, |
| 113 | {1, 12, 123, 23, 123, 1234, 12345, 123456, 12, 123, 12345, 1234567} |
| 114 | }; |
| 115 | final int[] numClusters = {1, 2, 3}; |
| 116 | final int[][] numFreqs = {{4}, {3, 5}, {3, 5, 4}}; |
| 117 | for (int i = 0; i < freqs.length; ++i) { |
| 118 | setCpuClusterFreqs(numClusters[i], numFreqs[i]); |
| 119 | when(mBufferedReader.readLine()).thenReturn(getFreqsLine(freqs[i])); |
| 120 | long[] actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs( |
| 121 | mBufferedReader, mPowerProfile); |
| 122 | assertArrayEquals(freqs[i], actualFreqs); |
| 123 | verifyZeroInteractions(mCallback); |
| 124 | final String errMsg = String.format("Freqs=%s, nClusters=%d, nFreqs=%s", |
| 125 | Arrays.toString(freqs[i]), numClusters[i], Arrays.toString(numFreqs[i])); |
| 126 | assertTrue(errMsg, mKernelUidCpuFreqTimeReader.perClusterTimesAvailable()); |
| 127 | |
| 128 | // Verify that a second call won't read the proc file again |
| 129 | Mockito.reset(mBufferedReader); |
| 130 | actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs(mPowerProfile); |
| 131 | assertArrayEquals(freqs[i], actualFreqs); |
| 132 | assertTrue(errMsg, mKernelUidCpuFreqTimeReader.perClusterTimesAvailable()); |
| 133 | |
| 134 | // Prepare for next iteration |
| 135 | Mockito.reset(mBufferedReader, mPowerProfile); |
| 136 | } |
| 137 | } |
| 138 | |
| 139 | @Test |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 140 | public void testReadDelta() throws Exception { |
| 141 | final long[] freqs = {1, 12, 123, 1234, 12345, 123456}; |
| 142 | final int[] uids = {1, 22, 333, 4444, 5555}; |
| 143 | final long[][] times = new long[uids.length][freqs.length]; |
| 144 | for (int i = 0; i < uids.length; ++i) { |
| 145 | for (int j = 0; j < freqs.length; ++j) { |
| 146 | times[i][j] = uids[i] * freqs[j] * 10; |
| 147 | } |
| 148 | } |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 149 | when(mBufferedReader.readLine()).thenReturn(getFreqsLine(freqs)); |
| 150 | long[] actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs(mBufferedReader, mPowerProfile); |
| 151 | |
| 152 | assertArrayEquals(freqs, actualFreqs); |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 153 | when(mBufferedReader.readLine()) |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 154 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, times)); |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 155 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 156 | for (int i = 0; i < uids.length; ++i) { |
| 157 | verify(mCallback).onUidCpuFreqTime(uids[i], times[i]); |
| 158 | } |
| 159 | verifyNoMoreInteractions(mCallback); |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 160 | |
| 161 | // Verify that a second call will only return deltas. |
| 162 | Mockito.reset(mCallback, mBufferedReader); |
| 163 | final long[][] newTimes1 = new long[uids.length][freqs.length]; |
| 164 | for (int i = 0; i < uids.length; ++i) { |
| 165 | for (int j = 0; j < freqs.length; ++j) { |
| 166 | newTimes1[i][j] = (times[i][j] + uids[i] + freqs[j]) * 10; |
| 167 | } |
| 168 | } |
| 169 | when(mBufferedReader.readLine()) |
| 170 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes1)); |
| 171 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 172 | for (int i = 0; i < uids.length; ++i) { |
| 173 | verify(mCallback).onUidCpuFreqTime(uids[i], subtract(newTimes1[i], times[i])); |
| 174 | } |
| 175 | verifyNoMoreInteractions(mCallback); |
| 176 | |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 177 | // Verify that there won't be a callback if the proc file values didn't change. |
| 178 | Mockito.reset(mCallback, mBufferedReader); |
| 179 | when(mBufferedReader.readLine()) |
| 180 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes1)); |
| 181 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 182 | verifyNoMoreInteractions(mCallback); |
| 183 | |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 184 | // Verify that calling with a null callback doesn't result in any crashes |
| 185 | Mockito.reset(mCallback, mBufferedReader); |
| 186 | final long[][] newTimes2 = new long[uids.length][freqs.length]; |
| 187 | for (int i = 0; i < uids.length; ++i) { |
| 188 | for (int j = 0; j < freqs.length; ++j) { |
| 189 | newTimes2[i][j] = (newTimes1[i][j] + uids[i] * freqs[j]) * 10; |
| 190 | } |
| 191 | } |
| 192 | when(mBufferedReader.readLine()) |
| 193 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes2)); |
| 194 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, null); |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 195 | |
| 196 | // Verify that the readDelta call will only return deltas when |
| 197 | // the previous call had null callback. |
| 198 | Mockito.reset(mCallback, mBufferedReader); |
| 199 | final long[][] newTimes3 = new long[uids.length][freqs.length]; |
| 200 | for (int i = 0; i < uids.length; ++i) { |
| 201 | for (int j = 0; j < freqs.length; ++j) { |
| 202 | newTimes3[i][j] = (newTimes2[i][j] * (uids[i] + freqs[j])) * 10; |
| 203 | } |
| 204 | } |
| 205 | when(mBufferedReader.readLine()) |
| 206 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes3)); |
| 207 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 208 | for (int i = 0; i < uids.length; ++i) { |
| 209 | verify(mCallback).onUidCpuFreqTime(uids[i], subtract(newTimes3[i], newTimes2[i])); |
| 210 | } |
| 211 | verifyNoMoreInteractions(mCallback); |
| 212 | } |
| 213 | |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 214 | @Test |
| 215 | public void testReadDelta_malformedData() throws Exception { |
| 216 | final long[] freqs = {1, 12, 123, 1234, 12345, 123456}; |
| 217 | final int[] uids = {1, 22, 333, 4444, 5555}; |
| 218 | final long[][] times = new long[uids.length][freqs.length]; |
| 219 | for (int i = 0; i < uids.length; ++i) { |
| 220 | for (int j = 0; j < freqs.length; ++j) { |
| 221 | times[i][j] = uids[i] * freqs[j] * 10; |
| 222 | } |
| 223 | } |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 224 | when(mBufferedReader.readLine()).thenReturn(getFreqsLine(freqs)); |
| 225 | long[] actualFreqs = mKernelUidCpuFreqTimeReader.readFreqs(mBufferedReader, mPowerProfile); |
| 226 | |
| 227 | assertArrayEquals(freqs, actualFreqs); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 228 | when(mBufferedReader.readLine()) |
| 229 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, times)); |
| 230 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 231 | for (int i = 0; i < uids.length; ++i) { |
| 232 | verify(mCallback).onUidCpuFreqTime(uids[i], times[i]); |
| 233 | } |
| 234 | verifyNoMoreInteractions(mCallback); |
| 235 | |
| 236 | // Verify that there is no callback if any value in the proc file is -ve. |
| 237 | Mockito.reset(mCallback, mBufferedReader); |
| 238 | final long[][] newTimes1 = new long[uids.length][freqs.length]; |
| 239 | for (int i = 0; i < uids.length; ++i) { |
| 240 | for (int j = 0; j < freqs.length; ++j) { |
| 241 | newTimes1[i][j] = (times[i][j] + uids[i] + freqs[j]) * 10; |
| 242 | } |
| 243 | } |
| 244 | newTimes1[uids.length - 1][freqs.length - 1] *= -1; |
| 245 | when(mBufferedReader.readLine()) |
| 246 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes1)); |
| 247 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 248 | for (int i = 0; i < uids.length; ++i) { |
| 249 | if (i == uids.length - 1) { |
| 250 | continue; |
| 251 | } |
| 252 | verify(mCallback).onUidCpuFreqTime(uids[i], subtract(newTimes1[i], times[i])); |
| 253 | } |
| 254 | verifyNoMoreInteractions(mCallback); |
| 255 | |
| 256 | // Verify that the internal state was not modified when the proc file had -ve value. |
| 257 | Mockito.reset(mCallback, mBufferedReader); |
| 258 | for (int i = 0; i < freqs.length; ++i) { |
| 259 | newTimes1[uids.length - 1][i] = times[uids.length - 1][i]; |
| 260 | } |
| 261 | when(mBufferedReader.readLine()) |
| 262 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes1)); |
| 263 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 264 | verifyNoMoreInteractions(mCallback); |
| 265 | |
| 266 | // Verify that there is no callback if the values in the proc file are decreased. |
| 267 | Mockito.reset(mCallback, mBufferedReader); |
| 268 | final long[][] newTimes2 = new long[uids.length][freqs.length]; |
| 269 | for (int i = 0; i < uids.length; ++i) { |
| 270 | for (int j = 0; j < freqs.length; ++j) { |
| 271 | newTimes2[i][j] = (newTimes1[i][j] + uids[i] * freqs[j]) * 10; |
| 272 | } |
| 273 | } |
| 274 | newTimes2[uids.length - 1][freqs.length - 1] = |
| 275 | newTimes1[uids.length - 1][freqs.length - 1] - 222; |
| 276 | when(mBufferedReader.readLine()) |
| 277 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes2)); |
| 278 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 279 | for (int i = 0; i < uids.length; ++i) { |
| 280 | if (i == uids.length - 1) { |
| 281 | continue; |
| 282 | } |
| 283 | verify(mCallback).onUidCpuFreqTime(uids[i], subtract(newTimes2[i], newTimes1[i])); |
| 284 | } |
| 285 | verifyNoMoreInteractions(mCallback); |
| 286 | |
| 287 | // Verify that the internal state was not modified when the proc file had decreasing values. |
| 288 | Mockito.reset(mCallback, mBufferedReader); |
| 289 | for (int i = 0; i < freqs.length; ++i) { |
| 290 | newTimes2[uids.length - 1][i] = newTimes1[uids.length - 1][i]; |
| 291 | } |
| 292 | when(mBufferedReader.readLine()) |
| 293 | .thenReturn(getFreqsLine(freqs), getUidTimesLines(uids, newTimes2)); |
| 294 | mKernelUidCpuFreqTimeReader.readDelta(mBufferedReader, mCallback); |
Sudheer Shanka | 0085752 | 2017-07-06 18:28:14 -0700 | [diff] [blame] | 295 | verifyNoMoreInteractions(mCallback); |
| 296 | } |
| 297 | |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 298 | private long[] subtract(long[] a1, long[] a2) { |
| 299 | long[] val = new long[a1.length]; |
| 300 | for (int i = 0; i < val.length; ++i) { |
| 301 | val[i] = a1[i] - a2[i]; |
| 302 | } |
| 303 | return val; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 304 | } |
| 305 | |
| 306 | private String getFreqsLine(long[] freqs) { |
| 307 | final StringBuilder sb = new StringBuilder(); |
| 308 | sb.append("uid:"); |
| 309 | for (int i = 0; i < freqs.length; ++i) { |
| 310 | sb.append(" " + freqs[i]); |
| 311 | } |
| 312 | return sb.toString(); |
| 313 | } |
| 314 | |
| 315 | private String[] getUidTimesLines(int[] uids, long[][] times) { |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 316 | final String[] lines = new String[uids.length + 1]; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 317 | final StringBuilder sb = new StringBuilder(); |
| 318 | for (int i = 0; i < uids.length; ++i) { |
| 319 | sb.setLength(0); |
| 320 | sb.append(uids[i] + ":"); |
| 321 | for (int j = 0; j < times[i].length; ++j) { |
| 322 | sb.append(" " + times[i][j] / 10); |
| 323 | } |
| 324 | lines[i] = sb.toString(); |
| 325 | } |
Sudheer Shanka | 59f5c00 | 2017-05-15 10:57:15 -0700 | [diff] [blame] | 326 | lines[uids.length] = null; |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 327 | return lines; |
| 328 | } |
Sudheer Shanka | b8ad594 | 2017-08-08 12:16:09 -0700 | [diff] [blame] | 329 | |
| 330 | private void setCpuClusterFreqs(int numClusters, int... clusterFreqs) { |
| 331 | assertEquals(numClusters, clusterFreqs.length); |
| 332 | when(mPowerProfile.getNumCpuClusters()).thenReturn(numClusters); |
| 333 | for (int i = 0; i < numClusters; ++i) { |
| 334 | when(mPowerProfile.getNumSpeedStepsInCpuCluster(i)).thenReturn(clusterFreqs[i]); |
| 335 | } |
| 336 | } |
Sudheer Shanka | 9b735c5 | 2017-05-09 18:26:18 -0700 | [diff] [blame] | 337 | } |