Vorläufige Testsuite für ByteCode-Testing

src/test/java/ByteCode/CompareByteCodeBehaviour.java

@@ -50,12 +50,14 @@ public class CompareByteCodeBehaviour {
             }
         }
 
-        public void compareMethodBehaviour(Class<?> class1, Class<?> class2){
+        public boolean compareMethodBehaviour(Class<?> class1, Class<?> class2){
             try {
                 this.sortMethods(class1, class2);
                 // Create instances
                 Constructor<?> constructor1 = class1.getDeclaredConstructor();
                 Constructor<?> constructor2 = class2.getDeclaredConstructor();
+                constructor1.setAccessible(true);
+                constructor2.setAccessible(true);
                 Object obj1 = constructor1.newInstance();
                 Object obj2 = constructor2.newInstance();
 
@@ -71,6 +73,9 @@ public class CompareByteCodeBehaviour {
                     Method method1 = methods1[i];
                     Method method2 = methods2[i];
 
+                    method1.setAccessible(true);
+                    method2.setAccessible(true);
+
 
                     // Test with some sample inputs
                     Object[] testInputs = getTestInputs(method1.getParameterTypes());
@@ -78,19 +83,17 @@ public class CompareByteCodeBehaviour {
                     Object result1 = method1.invoke(obj1, testInputs);
                     Object result2 = method2.invoke(obj2, testInputs);
 
-                    /*
+
                     if (!result1.equals(result2)) {
-                        System.out.println("Methods " + method1.getName() + " do not produce the same result");
+                        return false;
-                    } else {
-                        System.out.println("Methods " + method1.getName() + " produce the same result");
                     }
-                    */
                 }
 
             } catch (InstantiationException | IllegalAccessException |
                      NoSuchMethodException | InvocationTargetException e) {
                 e.printStackTrace();
             }
+            return true;
         }
 
     private static Object[] getTestInputs(Class<?>[] parameterTypes) {

src/test/java/ByteCode/CompareByteCodeSyntax.java

@@ -39,8 +39,10 @@ public class CompareByteCodeSyntax {
             return false;
         }
         for (Method method1 : methods1) {
+            method1.setAccessible(true);
             boolean found = false;
             for (Method method2 : methods2) {
+                method2.setAccessible(true);
                 if (compareMethod(method1, method2)) {
                     found = true;
                     break;
@@ -76,8 +78,10 @@ public class CompareByteCodeSyntax {
             return false;
         }
         for (Field field1 : fields1) {
+            field1.setAccessible(true);
             boolean found = false;
             for (Field field2 : fields2) {
+                field2.setAccessible(true);
                 if (compareField(field1, field2)) {
                     found = true;
                     break;

src/test/java/ByteCode/FileClassLoader.java

@@ -0,0 +1,37 @@
+package ByteCode;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+public class FileClassLoader extends ClassLoader {
+    private final String classFilePath;
+
+    public FileClassLoader(String classFilePath) {
+        this.classFilePath = classFilePath;
+    }
+
+    @Override
+    protected Class<?> findClass(String name) throws ClassNotFoundException {
+        try {
+            byte[] classData = loadClassData();
+            return defineClass(name, classData, 0, classData.length);
+        } catch (IOException e) {
+            throw new ClassNotFoundException("Class not found", e);
+        }
+    }
+
+    private byte[] loadClassData() throws IOException {
+        File file = new File(classFilePath);
+        try (FileInputStream fis = new FileInputStream(file);
+             ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
+            byte[] buffer = new byte[1024];
+            int bytesRead;
+            while ((bytesRead = fis.read(buffer)) != -1) {
+                baos.write(buffer, 0, bytesRead);
+            }
+            return baos.toByteArray();
+        }
+    }
+}

src/test/java/ByteCode/TestAll.java

@@ -1,4 +1,39 @@
 package ByteCode;
 
+import org.junit.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 public class TestAll {
+    CompareByteCodeBehaviour byteCodeBehaviourComparer;
+    public TestAll(){
+        byteCodeBehaviourComparer = new CompareByteCodeBehaviour();
+    }
+
+    public void testByteCode(String classPath1, String classPath2, String className){
+        try {
+            FileClassLoader classLoader1 = new FileClassLoader(classPath1);
+            FileClassLoader classLoader2 = new FileClassLoader(classPath2);
+
+            Class<?> class1 = classLoader1.findClass(className);
+            Class<?> class2 = classLoader2.findClass(className);
+
+            assertTrue(CompareByteCodeSyntax.haveSameBehavior(class1, class2));
+            assertTrue(byteCodeBehaviourComparer.compareMethodBehaviour(class1, class2));
+
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testEmptyClass() throws Exception {
+        String classPath1 = "src/test/resources/basicClasses/emptyClass.class";
+        String classPath2 = "src/test/resources/basicClasses/emptyClass.class";
+        String className = "emptyClass";
+
+        testByteCode(classPath1, classPath2, "emptyClass");
+    }
+
+
 }