diff --git a/code/drasil-code/test/HelloWorld.hs b/code/drasil-code/test/HelloWorld.hs
index 4d11584bdc..6afce48062 100644
--- a/code/drasil-code/test/HelloWorld.hs
+++ b/code/drasil-code/test/HelloWorld.hs
@@ -10,7 +10,7 @@ import Drasil.GOOL (MSBody, MSBlock, MSStatement, SMethod, SVariable,
   ControlStatement(..), VariableSym(var, constant), ScopeSym(..), Literal(..),
   VariableValue(..), CommandLineArgs(..), NumericExpression(..),
   BooleanExpression(..), Comparison(..), ValueExpression(..), extFuncApp,
-  List(..), MethodSym(..), OODeclStatement(objDecDef))
+  List(..), MethodSym(..), OODeclStatement(objDecDef), Set(..))
 import qualified Drasil.GOOL as OO (GSProgram, ProgramSym(..), FileSym(..),
   ModuleSym(..))
 import Drasil.GProc (ProcProg)
@@ -88,7 +88,10 @@ helloInitVariables = block [comment "Initializing variables",
   printLn (valueOf $ var "boringList" (listType bool)),
   assert (valueOf (var "b" int) ?== litInt 5) (litString "b should be 5"),
   assert (listSize (valueOf myOtherList) ?== litInt 4) (litString "myOtherList should have 4 elements"),
-  assert (valueOf (var "oneIndex" int) ?== litInt 0) (litString "oneIndex should be 0")]
+  assert (valueOf (var "oneIndex" int) ?== litInt 0) (litString "oneIndex should be 0"),
+  setDecDef (var "s" (setType int)) mainFn (litSet int [litInt 4, litInt 7, litInt 5]),
+  assert (contains (valueOf (var "s" (setType int))) (litInt 7))
+    (litString "Set s should contain 7")]
 
 mySlicedList, mySlicedList2, mySlicedList3, mySlicedList4, mySlicedList5,
   mySlicedList6, mySlicedList7, mySlicedList8, mySlicedList9, 
diff --git a/code/stable/gooltest/cpp/HelloWorld/HelloWorld.cpp b/code/stable/gooltest/cpp/HelloWorld/HelloWorld.cpp
index 0eb138ecfe..75824aae31 100644
--- a/code/stable/gooltest/cpp/HelloWorld/HelloWorld.cpp
+++ b/code/stable/gooltest/cpp/HelloWorld/HelloWorld.cpp
@@ -10,12 +10,14 @@
 #include <iterator>
 #include <limits>
 #include <math.h>
+#include <set>
 #include <sstream>
 #include <string>
 #include <vector>
 
 #include "Helper.hpp"
 
+using std::set;
 using std::string;
 using std::vector;
 
@@ -63,6 +65,8 @@ int main(int argc, const char *argv[]) {
     assert(b == 5 && "b should be 5");
     assert((int)(myOtherList.size()) == 4 && "myOtherList should have 4 elements");
     assert(oneIndex == 0 && "oneIndex should be 0");
+    set<int> s = {4, 7, 5};
+    assert(s.find(7) != s.end() && "Set s should contain 7");
     
     // List slicing tests
     // Create variables for list slices
diff --git a/code/stable/gooltest/csharp/HelloWorld/HelloWorld.cs b/code/stable/gooltest/csharp/HelloWorld/HelloWorld.cs
index 8fafcd6fae..3dfc67073a 100644
--- a/code/stable/gooltest/csharp/HelloWorld/HelloWorld.cs
+++ b/code/stable/gooltest/csharp/HelloWorld/HelloWorld.cs
@@ -48,6 +48,8 @@ public static void Main(string[] args) {
         Debug.Assert( b == 5 , "b should be 5");
         Debug.Assert( myOtherList.Count == 4 , "myOtherList should have 4 elements");
         Debug.Assert( oneIndex == 0 , "oneIndex should be 0");
+        HashSet<int> s = new HashSet<int> {4, 7, 5};
+        Debug.Assert( s.Contains(7) , "Set s should contain 7");
         
         // List slicing tests
         // Create variables for list slices
diff --git a/code/stable/gooltest/java/HelloWorld/HelloWorld/HelloWorld.java b/code/stable/gooltest/java/HelloWorld/HelloWorld/HelloWorld.java
index 24dcee9e02..d8cd44dfbd 100644
--- a/code/stable/gooltest/java/HelloWorld/HelloWorld/HelloWorld.java
+++ b/code/stable/gooltest/java/HelloWorld/HelloWorld/HelloWorld.java
@@ -9,6 +9,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Scanner;
+import java.util.Set;
 
 public class HelloWorld {
     
@@ -34,6 +35,8 @@ public static void main(String[] args) {
         assert b == 5 : "b should be 5";
         assert myOtherList.size() == 4 : "myOtherList should have 4 elements";
         assert oneIndex == 0 : "oneIndex should be 0";
+        Set<Integer> s = Set.of(4, 7, 5);
+        assert s.contains(7) : "Set s should contain 7";
         
         // List slicing tests
         // Create variables for list slices
diff --git a/code/stable/gooltest/julia/HelloWorld/HelloWorld.jl b/code/stable/gooltest/julia/HelloWorld/HelloWorld.jl
index 69399e2010..6cdc74574c 100644
--- a/code/stable/gooltest/julia/HelloWorld/HelloWorld.jl
+++ b/code/stable/gooltest/julia/HelloWorld/HelloWorld.jl
@@ -28,6 +28,8 @@ println(boringList)
 @assert b == 5 "b should be 5"
 @assert length(myOtherList) == 4 "myOtherList should have 4 elements"
 @assert oneIndex == 0 "oneIndex should be 0"
+global s = [4, 7, 5]
+@assert findfirst(x -> x == 7, s) - 1 "Set s should contain 7"
 
 # List slicing tests
 # Create variables for list slices
diff --git a/code/stable/gooltest/python/HelloWorld/HelloWorld.py b/code/stable/gooltest/python/HelloWorld/HelloWorld.py
index c609505e99..b1ba4c284a 100644
--- a/code/stable/gooltest/python/HelloWorld/HelloWorld.py
+++ b/code/stable/gooltest/python/HelloWorld/HelloWorld.py
@@ -27,6 +27,8 @@
 assert b == 5, "b should be 5"
 assert len(myOtherList) == 4, "myOtherList should have 4 elements"
 assert oneIndex == 0, "oneIndex should be 0"
+s = {4, 7, 5}
+assert 7 in s, "Set s should contain 7"
 
 # List slicing tests
 # Create variables for list slices
diff --git a/code/stable/gooltest/swift/HelloWorld/main.swift b/code/stable/gooltest/swift/HelloWorld/main.swift
index 1bb8b3a230..bcacb590bb 100644
--- a/code/stable/gooltest/swift/HelloWorld/main.swift
+++ b/code/stable/gooltest/swift/HelloWorld/main.swift
@@ -29,6 +29,8 @@ print(boringList)
 assert( b == 5 , "b should be 5")
 assert( myOtherList.count == 4 , "myOtherList should have 4 elements")
 assert( oneIndex == 0 , "oneIndex should be 0")
+let s: Set<Int> = [4, 7, 5]
+assert( s.contains(7) , "Set s should contain 7")
 
 // List slicing tests
 // Create variables for list slices