Removed dependency of Utils.java on Config.java

Removed the direct dependency by adding Utils#getConfigOrDefault(String, Object). See the documentation for more info

src/test/java/h05/Config.java

@@ -8,9 +8,14 @@ import java.util.Random;
  * This class contains constants that are used as settings for the tests.
  * They will not be overwritten when an update is downloaded (assuming this file is in {@link Config#EXCLUDED_FILES})
  */
-@SuppressWarnings("JavadocReference")
+@SuppressWarnings({"JavadocReference", "unused"})
 public class Config {
 
+    /**
+     * Whether this file exists. Used by Utils.java to determine whether or not the config file is missing
+     */
+    public static final boolean EXISTS = true;
+
     /**
      * Seed that is used for initialization of Random object, set to fixed value for (hopefully) reproducible tests / results
      * @see Utils#RANDOM

src/test/java/h05/Utils.java

@@ -13,14 +13,17 @@ import java.security.NoSuchAlgorithmException;
 import java.time.Duration;
 import java.util.*;
 
-import static h05.Config.*;
-
 public class Utils {
 
     // ----------------------------------- //
     // DO NOT CHANGE ANYTHING IN THIS FILE //
     // ----------------------------------- //
 
+    private static final long SEED = (Long) getConfigOrDefault("SEED", new Random().nextLong());
+    private static final boolean CHECK_FOR_UPDATES = (Boolean) getConfigOrDefault("CHECK_FOR_UPDATES", true),
+                                 CHECK_HASHES = (Boolean) getConfigOrDefault("CHECK_HASHES", true),
+                                 AUTO_UPDATE = (Boolean) getConfigOrDefault("AUTO_UPDATE", true);
+
     public static final Random RANDOM = new Random(SEED);
     public static final Map<Class<?>, Boolean> CLASS_CORRECT = new HashMap<>();
     public static final Map<Method, Boolean> METHOD_CORRECT = new HashMap<>();
@@ -32,26 +35,15 @@ public class Utils {
     );
 
     static {
-        try {
-            getClassForName("h05.Config");
-
-            if (CHECK_FOR_UPDATES)
-                Updater.checkForUpdates();
+        if (!(Boolean) getConfigOrDefault("EXISTS", false))
+            System.err.println("Configurations could not be found, they must be downloaded from the repository. " +
+                    "They will be automatically downloaded when using the installer or when CHECK_FOR_UPDATES and AUTO_UPDATE are true. " +
+                    "Please re-run the tests.");
 
-            System.out.println("Seed: " + SEED);
-        } catch (TestAbortedException e) {
-            System.out.println("Configurations could not be found, they must be downloaded from the repository. " +
-                    "They will automatically be downloaded if AUTO_UPDATE is true. Please re-run the tests.");
-
-            if (AUTO_UPDATE)
-                try {
-                    Updater.updateLocal("src/test/h05/Config.java");
-                } catch (IOException | InterruptedException ee) {
-                    ee.printStackTrace();
-                }
+        if (CHECK_FOR_UPDATES)
+            Updater.checkForUpdates();
 
-            System.exit(0);
-        }
+        System.out.println("Seed: " + SEED);
     }
 
     /**
@@ -180,6 +172,22 @@ public class Utils {
         }
     }
 
+    /**
+     * Attempts to get the value of a given field from {@link Config}. Returns either the actual value or the given default value
+     * @param fieldName    name of the field
+     * @param defaultValue the default value to return should a exception occur
+     * @return the actual value of the field or the given default value
+     */
+    public static Object getConfigOrDefault(String fieldName, Object defaultValue) {
+        try {
+            Class<?> c = Class.forName("h05.Config");
+
+            return c.getDeclaredField(fieldName).get(null);
+        } catch (Exception e) {
+            return defaultValue;
+        }
+    }
+
     private static class Updater {
 
         private static final String REPOSITORY_URL = "https://git.rwth-aachen.de/aud-tests/AuD-2021-" + ASSIGNMENT_ID + "-Student/-/";
@@ -223,7 +231,7 @@ public class Utils {
                 ) {
                     String fileName = line.split(" +")[0], expectedHash = line.split(" +")[1];
 
-                    if (EXCLUDED_FILES.contains(fileName))
+                    if (((List<?>) getConfigOrDefault("EXCLUDED_FILES", List.of())).contains(fileName))
                         continue;
 
                     MessageDigest messageDigest = MessageDigest.getInstance("MD5");