diff --git a/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/CastCounterTest.java b/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/CastCounterTest.java
index 63b9a2fae65..4fa62fb9c11 100644
--- a/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/CastCounterTest.java
+++ b/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/CastCounterTest.java
@@ -8,6 +8,7 @@
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
+import sootup.core.jimple.basic.Local;
 import sootup.core.model.Body;
 import sootup.core.types.*;
 import sootup.core.util.Utils;
@@ -38,10 +39,10 @@ public void setup() {
   public void testInvokeStmt() {
     final Body.BodyBuilder builder = createMethodsBuilder("invokeStmt", "void");
     Map<String, Type> map = new HashMap<>();
-    map.put("l0", classType);
-    map.put("l1", super1);
-    map.put("l2", PrimitiveType.getInt());
-    map.put("l3", sub2);
+    map.put("$l0", classType);
+    map.put("$l1", super1);
+    map.put("$l2", PrimitiveType.getInt());
+    map.put("$l3", sub2);
     map.put("$stack4", sub1);
     map.put("$stack5", sub2);
     Typing typing = createTyping(builder.getLocals(), map);
@@ -69,9 +70,9 @@ public void testInvokeStmt() {
   public void testAssignStmt() {
     final Body.BodyBuilder builder = createMethodsBuilder("assignStmt", "void");
     Map<String, Type> map = new HashMap<>();
-    map.put("l0", classType);
-    map.put("l1", Type.createArrayType(super1, 1));
-    map.put("l2", super1);
+    map.put("$l0", classType);
+    map.put("$l1", Type.createArrayType(super1, 1));
+    map.put("$l2", super1);
     map.put("$stack3", sub1);
     Typing typing = createTyping(builder.getLocals(), map);
     CastCounter counter = new CastCounter(builder, function, hierarchy);
@@ -88,13 +89,16 @@ public void testAssignStmt() {
   public void testInvokeStmtWithNewCasts() {
     final Body.BodyBuilder builder = createMethodsBuilder("invokeStmt", "void");
     Map<String, Type> map = new HashMap<>();
-    map.put("l0", classType);
-    map.put("l1", super1);
-    map.put("l2", PrimitiveType.getLong());
-    map.put("l3", super2);
+    map.put("$l0", classType);
+    map.put("$l1", super1);
+    map.put("$l2", PrimitiveType.getLong());
+    map.put("$l3", super2);
     map.put("$stack4", sub1);
     map.put("$stack5", sub2);
-    Typing typing = createTyping(builder.getLocals(), map);
+
+    final Set<Local> locals = builder.getLocals();
+
+    Typing typing = createTyping(locals, map);
     CastCounter counter = new CastCounter(builder, function, hierarchy);
     Assert.assertEquals(3, counter.getCastCount(typing));
     counter.insertCastStmts(typing);
@@ -129,9 +133,9 @@ public void testInvokeStmtWithNewCasts() {
   public void testAssignStmtWithNewCasts() {
     final Body.BodyBuilder builder = createMethodsBuilder("assignStmt", "void");
     Map<String, Type> map = new HashMap<>();
-    map.put("l0", classType);
-    map.put("l1", object);
-    map.put("l2", super1);
+    map.put("$l0", classType);
+    map.put("$l1", object);
+    map.put("$l2", super1);
     map.put("$stack3", sub1);
 
     Typing typing = createTyping(builder.getLocals(), map);
diff --git a/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/TypeAssignerTestSuite.java b/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/TypeAssignerTestSuite.java
index 04b1859ea70..7354e1655bd 100644
--- a/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/TypeAssignerTestSuite.java
+++ b/sootup.java.bytecode/src/test/java/sootup/java/bytecode/interceptors/typeresolving/TypeAssignerTestSuite.java
@@ -4,6 +4,7 @@
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
+import org.junit.Assert;
 import sootup.core.jimple.basic.Local;
 import sootup.core.model.Body;
 import sootup.core.signatures.MethodSignature;
@@ -51,6 +52,14 @@ public Body.BodyBuilder createMethodsBuilder(String methodName, String returnTyp
   }
 
   public Typing createTyping(Set<Local> locals, Map<String, Type> map) {
+
+    final Optional<Local> foundOpt =
+        locals.stream()
+            .filter(local -> !map.containsKey(local.toString()))
+            .peek(i -> System.out.println("TEST: missing mapping for: " + i))
+            .findAny();
+    Assert.assertFalse(foundOpt.isPresent());
+
     Typing typing = new Typing(locals);
     for (Local l : typing.getLocals()) {
       if (map.containsKey(l.getName())) {