diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index b82bec9ff..2fb22579f 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -1,4 +1,4 @@
-name: Jest unit tests
+name: Codi unit tests
 
 on:
   push:
diff --git a/package.json b/package.json
index f0b4c021a..7527e8cfe 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "node": ">=18.x"
   },
   "scripts": {
-    "test": "jest",
+    "test": "codi tests",
     "_build": "npx esbuild ./lib/mapp.mjs ./lib/ui.mjs --bundle --minify --tree-shaking=false --sourcemap --format=iife --outdir=./public/js/lib",
     "version": "node version.js",
     "generate-docs-mapp": "jsdoc --configure jsdoc_mapp.json --verbose",
@@ -29,6 +29,7 @@
   },
   "devDependencies": {
     "clean-jsdoc-theme": "^4.2.17",
+    "codi-test-framework": "^0.0.8",
     "cookie-parser": "^1.4.5",
     "dotenv": "^16.4.5",
     "esbuild": "^0.19.11",
@@ -38,7 +39,6 @@
     "eslint-plugin-n": "^15.6.0",
     "eslint-plugin-promise": "^6.1.1",
     "express": "^4.18.3",
-    "jest": "^29.5.0",
     "jsdocs": "^0.0.1",
     "uhtml": "^3.1.0"
   }
diff --git a/tests/mod/utils/merge.test.mjs b/tests/mod/utils/merge.test.mjs
new file mode 100644
index 000000000..932d57bf8
--- /dev/null
+++ b/tests/mod/utils/merge.test.mjs
@@ -0,0 +1,81 @@
+import { describe, it, assertDeepEqual } from 'codi-test-framework';
+import mergeDeep from '../../../mod/utils/merge.js'
+
+describe('mergeDeep', () => {
+
+    it('should merge objects deeply', () => {
+        const target = {
+            name: 'Rob',
+            age: 28,
+            address: {
+                street: '6 fourteenth street',
+                city: 'Johannesburg',
+            },
+            hobbies: ['squash', 'guitar'], 
+        };
+
+        const source = {
+            name: 'Rob',
+            age: 28,
+            address: {
+                street: '6 fourteenth street',
+                city: 'Johannesburg',
+            },
+            hobbies: ['cooking'],
+        };
+
+        const expected = {  
+            name: 'Rob',
+            age: 28,
+            address: {
+                street: '6 fourteenth street',
+                city: 'Johannesburg',
+            },
+            hobbies: ['squash', 'guitar', 'cooking'],
+        };
+
+        const mergedObj = mergeDeep(target, source);
+
+        assertDeepEqual(mergedObj, expected)
+    });
+
+    it('should merge arrays deeply', () => {
+        const target = {
+            fruits: ['apple', 'banana'],
+        };
+
+        const source = {
+            fruits: ['banana', 'orange'],
+        };
+
+        const expected = {
+            fruits: ['apple', 'banana','banana', 'orange'],
+        };
+
+        const mergedObj = mergeDeep(target, source);
+
+        assertDeepEqual(mergedObj, expected)
+    });
+
+    it('should handle merging with null or undefined values', () => {
+        const target = {
+            name: 'John',
+            age: 30,
+        };
+
+        const source1 = null;
+        const source2 = undefined;
+
+        const expected = {
+            name: 'John',
+            age: 30,
+        };
+
+        const mergedObj1 = mergeDeep(target, source1);
+        const mergedObj2 = mergeDeep(target, source2);
+
+        assertDeepEqual(mergedObj1, expected);
+        assertDeepEqual(mergedObj2, expected);
+    });
+
+});
diff --git a/tests/mod/utils/roles.test.mjs b/tests/mod/utils/roles.test.mjs
new file mode 100644
index 000000000..6c47c0ee8
--- /dev/null
+++ b/tests/mod/utils/roles.test.mjs
@@ -0,0 +1,105 @@
+import { describe, it, assertEqual, assertDeepEqual } from 'codi-test-framework';
+import { check, filter, get } from '../../../mod/utils/roles.js';
+
+describe('Roles Module', () => {
+  describe('check()', () => {
+    it('should return the object if no roles are assigned', () => {
+      const obj = { name: 'John' };
+      const result = check(obj, ['user']);
+      assertEqual(result, obj);
+    });
+
+    it('should return the object if the asterisk role is present', () => {
+      const obj = { name: 'John', roles: { '*': true } };
+      const result = check(obj, ['user']);
+      assertEqual(result, obj);
+    });
+
+    it('should return false if user roles are not provided or not an array', () => {
+      const obj = { name: 'John', roles: { user: true } };
+      const result1 = check(obj, null);
+      const result2 = check(obj, 'user');
+      assertEqual(result1, false);
+      assertEqual(result2, false);
+    });
+
+    it('should return false if a negated role is included in user roles', () => {
+      const obj = { name: 'John', roles: { '!admin': true } };
+      const result = check(obj, ['user', 'admin']);
+      assertEqual(result, false);
+    });
+
+    it('should return the object if all roles are negated and not included in user roles', () => {
+      const obj = { name: 'John', roles: { '!admin': true, '!superuser': true } };
+      const result = check(obj, ['user']);
+      assertEqual(result, obj);
+    });
+
+    it('should return the object if a positive role is included in user roles', () => {
+      const obj = { name: 'John', roles: { user: true, admin: true } };
+      const result = check(obj, ['user']);
+      assertEqual(result, obj);
+    });
+
+    it('should return false if no positive role is included in user roles', () => {
+      const obj = { name: 'John', roles: { admin: true } };
+      const result = check(obj, ['user']);
+      assertEqual(result, false);
+    });
+  });
+
+  describe('filter()', () => {
+    it('should return undefined if the layer has no roles', () => {
+      const layer = { name: 'Layer' };
+      const result = filter(layer, ['user']);
+      assertEqual(result, undefined);
+    });
+
+    it('should return undefined if user roles are not an array', () => {
+      const layer = { name: 'Layer', roles: { user: { filter: { status: 'active' } } } };
+      const result = filter(layer, 'user');
+      assertEqual(result, undefined);
+    });
+
+    it('should return the role filter for matching roles', () => {
+      const layer = { name: 'Layer', roles: { user: { filter: { status: 'active' } } } };
+      const result = filter(layer, ['user']);
+      assertDeepEqual(result, { user: { status: 'active' } });
+    });
+
+    it('should return the role filter for negated roles not included in user roles', () => {
+      const layer = { name: 'Layer', roles: { '!admin': { filter: { status: 'active' } } } };
+      const result = filter(layer, ['user']);
+      assertDeepEqual(result, { '!admin': { status: 'active' } });
+    });
+  });
+
+  describe('get()', () => {
+    it('should return an array of unique roles from the object tree', () => {
+      const obj = {
+        roles: { user: true, admin: true },
+        foo: { roles: { superuser: true } },
+      };
+      const result = get(obj);
+      assertDeepEqual(result, ['user', 'admin', 'superuser']);
+    });
+
+    it('should remove the negation prefix from roles', () => {
+      const obj = {
+        roles: { '!user': true, admin: true },
+        foo: { roles: { '!superuser': true } },
+      };
+      const result = get(obj);
+      assertDeepEqual(result, ['user', 'admin', 'superuser']);
+    });
+
+    it('should exclude the restricted asterisk role', () => {
+      const obj = {
+        roles: { '*': true, user: true },
+        foo: { roles: { admin: true } },
+      };
+      const result = get(obj);
+      assertDeepEqual(result, ['user', 'admin']);
+    });
+  });
+});
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