diff --git a/common/web/types/test/util/test-file-types.ts b/common/web/types/test/util/test-file-types.ts
new file mode 100644
index 0000000000..2299f86d99
--- /dev/null
+++ b/common/web/types/test/util/test-file-types.ts
@@ -0,0 +1,16 @@
+import 'mocha';
+import { assert } from 'chai';
+import { removeExtension } from '../../src/util/file-types.js';
+
+describe('Test of File-Types', () => {
+  describe('Test of removeExtension()', () => {
+    it('can remove file extension', () => {
+      const filename = removeExtension("file.kmn");
+      assert.deepEqual(filename, "file");
+    });
+    it('can handle no file extension', () => {
+      const filename = removeExtension("file");
+      assert.deepEqual(filename, "file");
+    });
+  });
+});
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