1 /* 2 * Copyright (C) 2018 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 util.build; 18 19 import java.lang.reflect.Method; 20 import java.util.ArrayList; 21 import java.util.LinkedHashMap; 22 import java.util.List; 23 import junit.framework.Test; 24 import junit.framework.TestCase; 25 import junit.framework.TestResult; 26 import junit.textui.TestRunner; 27 28 public class JUnitTestCollector { 29 30 public final int testClassCnt; 31 public final int testMethodsCnt; 32 33 /** 34 * Map collection all found tests. 35 * 36 * using a linked hashmap to keep the insertion order for iterators. 37 * the junit suite/tests adding order is used to generate the order of the 38 * report. 39 * a map. key: fully qualified class name, value: a list of test methods for 40 * the given class 41 */ 42 public final LinkedHashMap<String, List<String>> map = 43 new LinkedHashMap<String, List<String>>(); 44 JUnitTestCollector(ClassLoader loader)45 public JUnitTestCollector(ClassLoader loader) { 46 Test test; 47 try { 48 Class<?> allTestsClass = loader.loadClass("dot.junit.AllTests"); 49 Method suiteMethod = allTestsClass.getDeclaredMethod("suite"); 50 test = (Test)suiteMethod.invoke(null); 51 } catch (Exception e) { 52 throw new RuntimeException(e); 53 } 54 55 final Counters counters = new Counters(); 56 new TestRunner() { 57 @Override 58 protected TestResult createTestResult() { 59 return new TestResult() { 60 @Override 61 protected void run(TestCase test) { 62 String packageName = test.getClass().getPackage().getName(); 63 packageName = packageName.substring(packageName.lastIndexOf('.')); 64 65 66 String method = test.getName(); // e.g. testVFE2 67 String fqcn = test.getClass().getName(); // e.g. 68 // dxc.junit.opcodes.iload_3.Test_iload_3 69 70 counters.a++; 71 List<String> li = map.get(fqcn); 72 if (li == null) { 73 counters.b++; 74 li = new ArrayList<String>(); 75 map.put(fqcn, li); 76 } 77 li.add(method); 78 } 79 80 }; 81 } 82 }.doRun(test); 83 testMethodsCnt = counters.a; 84 testClassCnt = counters.b; 85 } 86 87 private static class Counters { 88 int a = 0; 89 int b = 0; 90 } 91 } 92