diff --git a/test/jest.config.js b/test/jest.config.js
index c854498b..91b0e142 100644
--- a/test/jest.config.js
+++ b/test/jest.config.js
@@ -7,8 +7,10 @@ module.exports = {
   rootDir: '../',
   roots: ['<rootDir>'],
   coverageDirectory: './coverage',
+  // we mock any style-related files and return an empty module. This is needed due to errors
+  // when jest tries to interpret these types of files.
   moduleNameMapper: {
-    '\\.(css|less|scss|sass)$': '<rootDir>/test/style_stub.js',
+    '\\.(css|less|scss|sass)$': '<rootDir>/test/mocks/style_mock.ts',
   },
   testEnvironment: 'jest-environment-jsdom',
   coverageReporters: ['lcov', 'text', 'cobertura'],
diff --git a/test/style_stub.js b/test/mocks/style_mock.ts
similarity index 80%
rename from test/style_stub.js
rename to test/mocks/style_mock.ts
index 28de3c8b..acbbabcc 100644
--- a/test/style_stub.js
+++ b/test/mocks/style_mock.ts
@@ -3,4 +3,4 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-module.exports = {};
+export default {};