我已经使用 Java、Selenium、Junit、Maven 开发了一整套自动化测试。对于每个测试，他们有一个或多个 @Category 注释，描述每个测试涵盖的软件区域。例如：@Test@Category({com.example.core.categories.Priority1.class, com.example.core.categories.Export.class, com.example.core.categories.MemberData.class})@Test@Category({com.example.core.categories.Priority1.class, com.example.core.categories.Import.class, com.example.core.categories.MemberData.class})@Test@Ignore@Category({com.example.core.categories.Priority2.class, com.example.core.categories.Import.class, com.example.core.categories.MemberData.class})我想要做的是找到一种方法来计算包含任何给定类别的测试数量。所有可能的类别都是文件//com/example/core/categories夹中的文件名作为源列表。我已经尝试构建一个 shell 脚本来进行字数统计，这似乎工作正常，但我认为会有更多“内置”的东西来处理 @Category。我最大的问题是，即使我得到了正确的计数，一个或多个测试很可能被标记为 @Ignore，这应该会使测试 @Category 无效，但没有大量使用标志并逐行读取每个文件为了它抛出正确的计数。有没有一种很好的方法来逐项列出@Ignore 中的@Category？示例输出| Category | Count ||----------------------------------------------|------:|| com.example.core.categories.Export.class | 1 || com.example.core.categories.Import.class | 1 || com.example.core.categories.MemberData.class | 2 || com.example.core.categories.Priority1.class | 2 || com.example.core.categories.Priority2.class | 0 || com.example.core.categories.Priority3.class | 0 |
2 回答
陪伴而非守候
TA贡献1757条经验 获得超8个赞
动态“按类别测试”计算机
（推荐方法）
我尝试了一种在抽象层中使用计数器执行此操作的方法，但很痛苦，必须在每个测试方法的开头添加源代码。
最后，这是我为满足您的需求而编写的源代码；它很重（反射......），但它对现有源代码的干扰较小，并且完全满足您的需求。
首先，您必须创建一个Testsuite（包含各种其他套件，或直接包含您想要的所有测试类），以确保最后您想要统计数据的所有测试都已加载。
在这个套件中，你必须实现一个“最终钩子” @AfterClass，当整个测试套件完全由JUnit管理时，它将被调用一次。
这是我为您编写的测试套件实现：
package misc.category;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Vector;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.AfterClass;
import org.junit.runner.RunWith;
import org.junit.runners.Suite;
@RunWith(Suite.class)
@Suite.SuiteClasses({ UnitTestWithCategory.class })
public class TestSuiteCountComputer {
public static final String MAIN_TEST_PACKAGES = "misc.category";
private static final Class<?>[] getClasses(final ClassLoader classLoader)
throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
Class<?> CL_class = classLoader.getClass();
while (CL_class != java.lang.ClassLoader.class) {
CL_class = CL_class.getSuperclass();
}
java.lang.reflect.Field ClassLoader_classes_field = CL_class.getDeclaredField("classes");
ClassLoader_classes_field.setAccessible(true);
Vector<?> classVector = (Vector<?>) ClassLoader_classes_field.get(classLoader);
Class<?>[] classes = new Class[classVector.size()]; // Creates an array to avoid concurrent modification
// exception.
return classVector.toArray(classes);
}
// Registers the information.
private static final void registerTest(Map<String, AtomicInteger> testByCategoryMap, String category) {
AtomicInteger count;
if (testByCategoryMap.containsKey(category)) {
count = testByCategoryMap.get(category);
} else {
count = new AtomicInteger(0);
testByCategoryMap.put(category, count);
}
count.incrementAndGet();
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
Map<String, AtomicInteger> testByCategoryMap = new HashMap<>();
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
while (classLoader != null) {
for (Class<?> classToCheck : getClasses(classLoader)) {
String packageName = classToCheck.getPackage() != null ? classToCheck.getPackage().getName() : "";
if (!packageName.startsWith(MAIN_TEST_PACKAGES))
continue;
// For each methods of the class.
for (Method method : classToCheck.getDeclaredMethods()) {
Class<?>[] categoryClassToRegister = null;
boolean ignored = false;
for (Annotation annotation : method.getAnnotations()) {
if (annotation instanceof org.junit.experimental.categories.Category) {
categoryClassToRegister = ((org.junit.experimental.categories.Category) annotation).value();
} else if (annotation instanceof org.junit.Ignore) {
ignored = true;
} else {
// Ignore this annotation.
continue;
}
}
if (ignored) {
// If you want to compute count of ignored test.
registerTest(testByCategoryMap, "(Ignored Tests)");
} else if (categoryClassToRegister != null) {
for (Class<?> categoryClass : categoryClassToRegister) {
registerTest(testByCategoryMap, categoryClass.getCanonicalName());
}
}
}
}
classLoader = classLoader.getParent();
}
System.out.println("\nFinal Statistics:");
System.out.println("Count of Tests\t\tCategory");
for (Entry<String, AtomicInteger> info : testByCategoryMap.entrySet()) {
System.out.println("\t" + info.getValue() + "\t\t" + info.getKey());
}
}
}
你可以根据自己的需要，特别是我一开始创建的常量，来过滤包来考虑。
那么你就没有比你已经做的更多的事情了。
例如，这是我的小测试类：
package misc.category;
import org.junit.Test;
import org.junit.experimental.categories.Category;
public class UnitTestWithCategory {
@Category({CategoryA.class, CategoryB.class})
@Test
public final void Test() {
System.out.println("In Test 1");
}
@Category(CategoryA.class)
@Test
public final void Test2() {
System.out.println("In Test 2");
}
}
在这种情况下，输出是：
In Test 1
In Test 2
Final Statistics:
Count of Tests Category
1 misc.category.CategoryB
2 misc.category.CategoryA
并使用包含@Ignore注释的测试用例：
package misc.category;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.categories.Category;
public class UnitTestWithCategory {
@Category({CategoryA.class, CategoryB.class})
@Test
public final void Test() {
System.out.println("In Test 1");
}
@Category(CategoryA.class)
@Test
public final void Test2() {
System.out.println("In Test 2");
}
@Category(CategoryA.class)
@Ignore
@Test
public final void Test3() {
System.out.println("In Test 3");
}
}
你得到输出：
In Test 1
In Test 2
Final Statistics:
Count of Tests Category
1 (Ignored Tests)
1 misc.category.CategoryB
2 misc.category.CategoryA
如果需要，您可以轻松删除“(Ignored Tests)”注册，当然还可以根据需要调整输出。
这个最终版本的好处是，它将处理真正加载/执行的测试类，因此您将获得已执行内容的真实统计数据，而不是像您目前获得的静态统计数据.
静态“按类别测试”计算机
如果您想像您问的那样对现有源代码无所事事，这是一种静态执行按类别计算的测试的方法。
这是StaticTestWithCategoryCounter我为你写的：
import java.io.File;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Vector;
import java.util.concurrent.atomic.AtomicInteger;
public class StaticTestWithCategoryCounter {
public static final String ROOT_DIR_TO_SCAN = "bin";
public static final String MAIN_TEST_PACKAGES = "misc.category";
private static final Class<?>[] getClasses(final ClassLoader classLoader)
throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException {
Class<?> CL_class = classLoader.getClass();
while (CL_class != java.lang.ClassLoader.class) {
CL_class = CL_class.getSuperclass();
}
java.lang.reflect.Field ClassLoader_classes_field = CL_class.getDeclaredField("classes");
ClassLoader_classes_field.setAccessible(true);
Vector<?> classVector = (Vector<?>) ClassLoader_classes_field.get(classLoader);
Class<?>[] classes = new Class[classVector.size()]; // Creates an array to avoid concurrent modification
// exception.
return classVector.toArray(classes);
}
// Registers the information.
private static final void registerTest(Map<String, AtomicInteger> testByCategoryMap, String category) {
AtomicInteger count;
if (testByCategoryMap.containsKey(category)) {
count = testByCategoryMap.get(category);
} else {
count = new AtomicInteger(0);
testByCategoryMap.put(category, count);
}
count.incrementAndGet();
}
public static void computeCategoryCounters() throws Exception {
Map<String, AtomicInteger> testByCategoryMap = new HashMap<>();
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
while (classLoader != null) {
for (Class<?> classToCheck : getClasses(classLoader)) {
String packageName = classToCheck.getPackage() != null ? classToCheck.getPackage().getName() : "";
if (!packageName.startsWith(MAIN_TEST_PACKAGES))
continue;
// For each methods of the class.
for (Method method : classToCheck.getDeclaredMethods()) {
Class<?>[] categoryClassToRegister = null;
boolean ignored = false;
for (Annotation annotation : method.getAnnotations()) {
if (annotation instanceof org.junit.experimental.categories.Category) {
categoryClassToRegister = ((org.junit.experimental.categories.Category) annotation).value();
} else if (annotation instanceof org.junit.Ignore) {
ignored = true;
} else {
// Ignore this annotation.
continue;
}
}
if (ignored) {
// If you want to compute count of ignored test.
registerTest(testByCategoryMap, "(Ignored Tests)");
} else if (categoryClassToRegister != null) {
for (Class<?> categoryClass : categoryClassToRegister) {
registerTest(testByCategoryMap, categoryClass.getCanonicalName());
}
}
}
}
classLoader = classLoader.getParent();
}
System.out.println("\nFinal Statistics:");
System.out.println("Count of Tests\t\tCategory");
for (Entry<String, AtomicInteger> info : testByCategoryMap.entrySet()) {
System.out.println("\t" + info.getValue() + "\t\t" + info.getKey());
}
}
public static List<String> listNameOfAvailableClasses(String rootDirectory, File directory, String packageName) throws ClassNotFoundException {
List<String> classeNameList = new ArrayList<>();
if (!directory.exists()) {
return classeNameList;
}
File[] files = directory.listFiles();
for (File file : files) {
if (file.isDirectory()) {
if (file.getName().contains("."))
continue;
classeNameList.addAll(listNameOfAvailableClasses(rootDirectory, file, packageName));
} else if (file.getName().endsWith(".class")) {
String qualifiedName = file.getPath().substring(rootDirectory.length() + 1);
qualifiedName = qualifiedName.substring(0, qualifiedName.length() - 6).replaceAll(File.separator, ".");
if (packageName ==null || qualifiedName.startsWith(packageName))
classeNameList.add(qualifiedName);
}
}
return classeNameList;
}
public static List<Class<?>> loadAllAvailableClasses(String rootDirectory, String packageName) throws ClassNotFoundException {
List<String> classeNameList = listNameOfAvailableClasses(rootDirectory, new File(rootDirectory), packageName);
List<Class<?>> classes = new ArrayList<>();
for (final String className: classeNameList) {
classes.add(Class.forName(className));
}
return classes;
}
public static void main(String[] args) {
try {
loadAllAvailableClasses(ROOT_DIR_TO_SCAN, MAIN_TEST_PACKAGES);
computeCategoryCounters();
} catch (Exception e) {
e.printStackTrace();
}
}
}
您只需要在开始时调整两个常量即可指定：
（字节码）类在哪里
您对哪个主包感兴趣（您能否将其设置null为考虑 100% 可用包）
这个新版本的想法：
列出与您的 2 个常量匹配的所有类文件
加载所有对应的类
使用未修改的动态版本源代码（现在类已加载）
如果您需要更多信息，请告诉我。
慕码人2483693
TA贡献1860条经验 获得超9个赞
使用番石榴，ClassPath您可以执行以下操作：
首先加载类别：
private static List<Class<?>> getCategories(ClassPath classPath) {
return classPath.getAllClasses()
.stream()
.filter(classInfo -> classInfo.getPackageName().startsWith(CATEGORIES_PACKAGE))
.map(ClassPath.ClassInfo::load)
.collect(Collectors.toList());
}
然后计算频率。
这个方法返回一个Mapfrom 类别Class<?>到它的频率：
private static Map<Class<?>, Long> getCategoryFrequency(ClassPath classPath) {
return classPath.getAllClasses()
.stream()
.filter(classInfo -> classInfo.getPackageName().startsWith(APPLICATION_PACKAGE))
.map(ClassPath.ClassInfo::load)
.map(Class::getMethods)
.flatMap(Arrays::stream)
.filter(method -> method.getAnnotation(Test.class) != null)// Only tests
.filter(method -> method.getAnnotation(Ignore.class) == null) // Without @Ignore
.map(method -> method.getAnnotation(Category.class))
.filter(Objects::nonNull)
.map(Category::value)
.flatMap(Arrays::stream)
.collect(groupingBy(Function.identity(), Collectors.counting()));
}
最后打印结果：
System.out.println("Category | Frequency");
for (Class<?> category : categories) {
System.out.println(category.getSimpleName() + " | " + categoryFrequency.getOrDefault(category, 0L));
}
全班名单：
public class CategoriesCounter {
private static final String CATEGORIES_PACKAGE = "com.example.core.categories";
private static final String APPLICATION_PACKAGE = "com.example.core";
public static void main(String[] args) throws Throwable {
ClassPath classPath = ClassPath.from(CategoriesCounter.class.getClassLoader());
List<Class<?>> categories = getCategories(classPath);
Map<Class<?>, Long> categoryFrequency = getCategoryFrequency(classPath);
System.out.println("Category | Frequency");
for (Class<?> category : categories) {
System.out.println(category.getSimpleName() + " | " + categoryFrequency.getOrDefault(category, 0L));
}
}
private static List<Class<?>> getCategories(ClassPath classPath) {
return classPath.getAllClasses()
.stream()
.filter(classInfo -> classInfo.getPackageName().startsWith(CATEGORIES_PACKAGE))
.map(ClassPath.ClassInfo::load)
.collect(Collectors.toList());
}
private static Map<Class<?>, Long> getCategoryFrequency(ClassPath classPath) {
return classPath.getAllClasses()
.stream()
.filter(classInfo -> classInfo.getPackageName().startsWith(APPLICATION_PACKAGE))
.map(ClassPath.ClassInfo::load)
.map(Class::getMethods)
.flatMap(Arrays::stream)
.filter(method -> method.getAnnotation(Test.class) != null)// Only tests
.filter(method -> method.getAnnotation(Ignore.class) == null) // Without @Ignore
.map(method -> method.getAnnotation(Category.class))
.filter(Objects::nonNull)
.map(Category::value)
.flatMap(Arrays::stream)
.collect(groupingBy(Function.identity(), Collectors.counting()));
}
}
在类路径上使用这个测试类：
public class Test1 {
@FastTest
@Category(value = FastTest.class)
@Test
public void a() {
}
@FastTest
@Category(value = FastTest.class)
@Test
public void d() {
}
@Category(value = SlowTest.class)
@Test
public void b() {
}
@Category(value = SlowTest.class)
@Test
@Ignore
public void c() {
}
}
该CategoriesCounter收益率：
Category | Frequency
SlowTest | 1
FastTest | 2
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