fix textencoder error

Signed-off-by: Adam Setch <[email protected]>

Author: setchy

jest.config.ts

@@ -2,7 +2,7 @@ import type { Config } from 'jest';
 
 const config: Config = {
   preset: 'ts-jest',
-  setupFiles: ['<rootDir>/src/renderer/__helpers__/setupEnvVars.js'],
+  setupFiles: ['<rootDir>/src/renderer/__helpers__/jest.setup.ts'],
   testEnvironment: 'jsdom',
   collectCoverage: true,
   collectCoverageFrom: ['src/**/*', '!**/__snapshots__/**'],

src/renderer/__helpers__/jest.setup.ts

@@ -0,0 +1,9 @@
+import { TextDecoder, TextEncoder } from 'node:util';
+
+// Prevent "ReferenceError: TextEncoder is not defined" error
+global.TextEncoder = TextEncoder;
+global.TextDecoder = TextDecoder;
+
+// Mock OAuth client ID and secret
+process.env.OAUTH_CLIENT_ID = 'FAKE_CLIENT_ID_123';
+process.env.OAUTH_CLIENT_SECRET = 'FAKE_CLIENT_SECRET_123';