test: fix unit tests for WebExtension build

__tests__/schema.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test, mock } from "bun:test";
+import { describe, expect, test, mock, beforeEach, jest } from "bun:test";
 import { ItemSchema, ItemSlot, getItemIndexByName, getTradableStatusByDefindex, getTradableStatusByName, linkBotkillerVariants, linkFestiveVariants, prepareSchema } from '../src/content/schemaService'
 
 // Mock the storage and log functions
@@ -13,6 +13,24 @@ mock.module('../src/content/utils/log', () => ({
     logError: mock(() => {})
 }));
 
+const mockSchemaResponse = [
+    {
+        defindex: 1,
+        item_name: 'Test Item',
+        item_slot: 'misc',
+        attributes: [
+            { "name": "cannot trade", "class": "cannot_trade", "value": 1 }
+        ],
+        capabilities: {}
+    },
+    {
+        defindex: 208,
+        item_name: 'Flame Thrower',
+        item_slot: 'primary',
+        capabilities: { can_killstreakify: true }
+    }
+]
+
 const mockSchema: ItemSchema = {
     '21': {
         name: 'Flame Thrower',
@@ -89,6 +107,7 @@ const mockSchema: ItemSchema = {
 }
 
 describe('Schema Service', () => {
+
     test('getItemIndexByName returns correct defindex', () => {
         expect(getItemIndexByName(mockSchema, 'Flame Thrower')).toBe(208)
         expect(getItemIndexByName(mockSchema, 'Mann Co. Supply Crate Key')).toBe(5021)
@@ -113,25 +132,12 @@ describe('Schema Service', () => {
         // Mock GM_fetch response
         const mockResponse = {
             ok: true,
-            json: async () => [
-                {
-                    defindex: 1,
-                    item_name: 'Test Item',
-                    item_slot: 'misc',
-                    attributes: [
-                        { "name": "cannot trade", "class": "cannot_trade", "value": 1 }
-                    ],
-                    capabilities: {}
-                },
-                {
-                    defindex: 208,
-                    item_name: 'Flame Thrower',
-                    item_slot: 'primary',
-                    capabilities: { can_killstreakify: true }
-                }
-            ]
+            json: async () => mockSchemaResponse
         };
 
+        // Mock Chrome runtime message
+        (chrome.runtime.sendMessage as jest.Fn).mockImplementation(() => mockSchemaResponse);
+
         // Mock GM_fetch
         globalThis.GM_fetch = mock(async () => mockResponse);