Remi NGUYEN VAN | 0e3d0923 | 2018-12-04 12:13:09 +0900 | [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.server.util; |
| 18 | |
| 19 | import static org.junit.Assert.assertEquals; |
| 20 | import static org.junit.Assert.assertTrue; |
| 21 | |
| 22 | import android.net.util.SharedLog; |
| 23 | import android.support.test.filters.SmallTest; |
| 24 | import android.support.test.runner.AndroidJUnit4; |
| 25 | |
| 26 | import org.junit.Test; |
| 27 | import org.junit.runner.RunWith; |
| 28 | |
| 29 | import java.io.ByteArrayOutputStream; |
| 30 | import java.io.PrintWriter; |
| 31 | |
| 32 | @RunWith(AndroidJUnit4.class) |
| 33 | @SmallTest |
| 34 | public class SharedLogTest { |
| 35 | private static final String TIMESTAMP_PATTERN = "\\d{2}:\\d{2}:\\d{2}"; |
| 36 | private static final String TIMESTAMP = "HH:MM:SS"; |
| 37 | |
| 38 | @Test |
| 39 | public void testBasicOperation() { |
| 40 | final SharedLog logTop = new SharedLog("top"); |
| 41 | logTop.mark("first post!"); |
| 42 | |
| 43 | final SharedLog logLevel2a = logTop.forSubComponent("twoA"); |
| 44 | final SharedLog logLevel2b = logTop.forSubComponent("twoB"); |
| 45 | logLevel2b.e("2b or not 2b"); |
| 46 | logLevel2b.e("No exception", null); |
| 47 | logLevel2b.e("Wait, here's one", new Exception("Test")); |
| 48 | logLevel2a.w("second post?"); |
| 49 | |
| 50 | final SharedLog logLevel3 = logLevel2a.forSubComponent("three"); |
| 51 | logTop.log("still logging"); |
| 52 | logLevel3.log("3 >> 2"); |
| 53 | logLevel2a.mark("ok: last post"); |
| 54 | |
| 55 | final String[] expected = { |
| 56 | " - MARK first post!", |
| 57 | " - [twoB] ERROR 2b or not 2b", |
| 58 | " - [twoB] ERROR No exception", |
| 59 | // No stacktrace in shared log, only in logcat |
| 60 | " - [twoB] ERROR Wait, here's one: Test", |
| 61 | " - [twoA] WARN second post?", |
| 62 | " - still logging", |
| 63 | " - [twoA.three] 3 >> 2", |
| 64 | " - [twoA] MARK ok: last post", |
| 65 | }; |
| 66 | // Verify the logs are all there and in the correct order. |
| 67 | verifyLogLines(expected, logTop); |
| 68 | |
| 69 | // In fact, because they all share the same underlying LocalLog, |
| 70 | // every subcomponent SharedLog's dump() is identical. |
| 71 | verifyLogLines(expected, logLevel2a); |
| 72 | verifyLogLines(expected, logLevel2b); |
| 73 | verifyLogLines(expected, logLevel3); |
| 74 | } |
| 75 | |
| 76 | private static void verifyLogLines(String[] expected, SharedLog log) { |
| 77 | final ByteArrayOutputStream ostream = new ByteArrayOutputStream(); |
| 78 | final PrintWriter pw = new PrintWriter(ostream, true); |
| 79 | log.dump(null, pw, null); |
| 80 | |
| 81 | final String dumpOutput = ostream.toString(); |
| 82 | assertTrue(dumpOutput != null); |
| 83 | assertTrue(!"".equals(dumpOutput)); |
| 84 | |
| 85 | final String[] lines = dumpOutput.split("\n"); |
| 86 | assertEquals(expected.length, lines.length); |
| 87 | |
| 88 | for (int i = 0; i < expected.length; i++) { |
| 89 | String got = lines[i]; |
| 90 | String want = expected[i]; |
| 91 | assertTrue(String.format("'%s' did not contain '%s'", got, want), got.endsWith(want)); |
| 92 | assertTrue(String.format("'%s' did not contain a %s timestamp", got, TIMESTAMP), |
| 93 | got.replaceFirst(TIMESTAMP_PATTERN, TIMESTAMP).contains(TIMESTAMP)); |
| 94 | } |
| 95 | } |
| 96 | } |