diff --git a/javascripts/src/components/common/form/ReactMaskedInput.spec.tsx b/javascripts/src/components/common/form/ReactMaskedInput.spec.tsx
new file mode 100644
index 00000000..8a5df6e5
--- /dev/null
+++ b/javascripts/src/components/common/form/ReactMaskedInput.spec.tsx
@@ -0,0 +1,10 @@
+// License: LGPL-3.0-or-later
+import * as React from 'react';
+import 'jest';
+import ReactMaskedInput from './ReactMaskedInput'
+
+describe('ReactMaskedInput', () => {
+  test('your test here', () => {
+    expect(false).toBe(true)
+  })
+})
\ No newline at end of file
diff --git a/javascripts/src/lib/createNumberMask.ts b/javascripts/src/lib/createNumberMask.ts
index 02d5d7d2..08697d9c 100644
--- a/javascripts/src/lib/createNumberMask.ts
+++ b/javascripts/src/lib/createNumberMask.ts
@@ -1,5 +1,6 @@
 // License: Unlicense
 // from: https://github.com/text-mask/text-mask/pull/760/commits/f66c81b62c4894b7da43862bee5943f659dc7537
+
 const dollarSign = '$'
 const emptyString = ''
 const comma = ','