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 android.net.util; 18 19 import static org.junit.Assert.assertEquals; 20 import static org.junit.Assert.assertTrue; 21 22 import android.support.test.filters.SmallTest; 23 import android.support.test.runner.AndroidJUnit4; 24 25 import org.junit.Test; 26 import org.junit.runner.RunWith; 27 28 import java.io.ByteArrayOutputStream; 29 import java.io.PrintWriter; 30 import java.util.ArrayList; 31 import java.util.Vector; 32 33 @RunWith(AndroidJUnit4.class) 34 @SmallTest 35 public class SharedLogTest { 36 private static final String TIMESTAMP_PATTERN = "\\d{2}:\\d{2}:\\d{2}"; 37 private static final String TIMESTAMP = "HH:MM:SS"; 38 39 @Test 40 public void testBasicOperation() { 41 final SharedLog logTop = new SharedLog("top"); 42 logTop.mark("first post!"); 43 44 final SharedLog logLevel2a = logTop.forSubComponent("twoA"); 45 final SharedLog logLevel2b = logTop.forSubComponent("twoB"); 46 logLevel2b.e("2b or not 2b"); 47 logLevel2a.w("second post?"); 48 49 final SharedLog logLevel3 = logLevel2a.forSubComponent("three"); 50 logTop.log("still logging"); 51 logLevel3.log("3 >> 2"); 52 logLevel2a.mark("ok: last post"); 53 54 final String[] expected = { 55 " - MARK first post!", 56 " - [twoB] ERROR 2b or not 2b", 57 " - [twoA] WARN second post?", 58 " - still logging", 59 " - [twoA.three] 3 >> 2", 60 " - [twoA] MARK ok: last post", 61 }; 62 // Verify the logs are all there and in the correct order. 63 verifyLogLines(expected, logTop); 64 65 // In fact, because they all share the same underlying LocalLog, 66 // every subcomponent SharedLog's dump() is identical. 67 verifyLogLines(expected, logLevel2a); 68 verifyLogLines(expected, logLevel2b); 69 verifyLogLines(expected, logLevel3); 70 } 71 72 private static void verifyLogLines(String[] expected, SharedLog log) { 73 final ByteArrayOutputStream ostream = new ByteArrayOutputStream(); 74 final PrintWriter pw = new PrintWriter(ostream, true); 75 log.dump(null, pw, null); 76 77 final String dumpOutput = ostream.toString(); 78 assertTrue(dumpOutput != null); 79 assertTrue(!"".equals(dumpOutput)); 80 81 final String[] lines = dumpOutput.split("\n"); 82 assertEquals(expected.length, lines.length); 83 84 for (int i = 0; i < expected.length; i++) { 85 String got = lines[i]; 86 String want = expected[i]; 87 assertTrue(String.format("'%s' did not contain '%s'", got, want), got.endsWith(want)); 88 assertTrue(String.format("'%s' did not contain a %s timestamp", got, TIMESTAMP), 89 got.replaceFirst(TIMESTAMP_PATTERN, TIMESTAMP).contains(TIMESTAMP)); 90 } 91 } 92 } 93
