diff --git a/apps/designer/app/designer/shared/design-tokens-manager/utils.test.ts b/apps/designer/app/designer/shared/design-tokens-manager/utils.test.ts
index 779b310c13..270e5ae6d5 100644
--- a/apps/designer/app/designer/shared/design-tokens-manager/utils.test.ts
+++ b/apps/designer/app/designer/shared/design-tokens-manager/utils.test.ts
@@ -1,12 +1,21 @@
 import type { DesignToken } from "@webstudio-is/project";
-import { deleteTokenMutable } from "./utils";
+import produce from "immer";
+import {
+  deleteTokenMutable,
+  filterByType,
+  findByName,
+  tokensToStyle,
+  updateTokenMutable,
+} from "./utils";
+
+const tokens: Array<DesignToken> = [
+  { name: "a", type: "color", value: "red", group: "Color" },
+  { name: "b", type: "color", value: "green", group: "Color" },
+  { name: "c", type: "sizing", value: "20px", group: "Sizing" },
+];
 
 describe("design tokens manager utils", () => {
   test("deleteTokenMutable", () => {
-    const tokens: Array<DesignToken> = [
-      { name: "a", type: "color", value: "red", group: "Color" },
-      { name: "b", type: "color", value: "green", group: "Color" },
-    ];
     let updated = [...tokens];
     deleteTokenMutable(updated, "a");
     expect(updated).toMatchInlineSnapshot(`
@@ -17,6 +26,12 @@ describe("design tokens manager utils", () => {
           "type": "color",
           "value": "green",
         },
+        {
+          "group": "Sizing",
+          "name": "c",
+          "type": "sizing",
+          "value": "20px",
+        },
       ]
     `);
     updated = [...tokens];
@@ -29,6 +44,93 @@ describe("design tokens manager utils", () => {
           "type": "color",
           "value": "red",
         },
+        {
+          "group": "Sizing",
+          "name": "c",
+          "type": "sizing",
+          "value": "20px",
+        },
+      ]
+    `);
+  });
+
+  test("updateTokenMutable", () => {
+    const updated = produce(tokens, (draft) => {
+      updateTokenMutable(
+        draft,
+        { name: "c", type: "color", value: "blue", group: "Color" },
+        "a"
+      );
+    });
+    expect(updated).toMatchInlineSnapshot(`
+      [
+        {
+          "group": "Color",
+          "name": "c",
+          "type": "color",
+          "value": "blue",
+        },
+        {
+          "group": "Color",
+          "name": "b",
+          "type": "color",
+          "value": "green",
+        },
+        {
+          "group": "Sizing",
+          "name": "c",
+          "type": "sizing",
+          "value": "20px",
+        },
+      ]
+    `);
+  });
+
+  test("tokensToStyle", () => {
+    expect(tokensToStyle(tokens)).toMatchInlineSnapshot(`
+      {
+        "--token-a": {
+          "type": "keyword",
+          "value": "red",
+        },
+        "--token-b": {
+          "type": "keyword",
+          "value": "green",
+        },
+        "--token-c": {
+          "type": "keyword",
+          "value": "20px",
+        },
+      }
+    `);
+  });
+
+  test("findByName", () => {
+    expect(findByName(tokens, "a")).toMatchInlineSnapshot(`
+      {
+        "group": "Color",
+        "name": "a",
+        "type": "color",
+        "value": "red",
+      }
+    `);
+  });
+
+  test("filterByType", () => {
+    expect(filterByType(tokens, "color")).toMatchInlineSnapshot(`
+      [
+        {
+          "group": "Color",
+          "name": "a",
+          "type": "color",
+          "value": "red",
+        },
+        {
+          "group": "Color",
+          "name": "b",
+          "type": "color",
+          "value": "green",
+        },
       ]
     `);
   });