diff --git a/js/tests/vowelSign_test.js b/js/tests/vowelSign_test.js
new file mode 100644
index 000000000..766ba479e
--- /dev/null
+++ b/js/tests/vowelSign_test.js
@@ -0,0 +1,14 @@
+export const tests = []
+const t = (f) => tests.push(f)
+
+t(({ eq }) => eq(vowelSign("Hello, World!"), "H-ll-, W-rld!"))
+t(({ eq }) => eq(vowelSign("This Is a Test"), "Th-s +s - T-st"))
+t(({ eq }) => eq(vowelSign("Open the door nOw"), "+p-n th- d--r n+w"))
+t(({ eq }) => eq(vowelSign(""), ""))
+t(({ eq }) => eq(vowelSign("AO\tU\s+fiyu"), "++\t+s+f-y-"))
+t(({ eq }) => eq(vowelSign("E_E"), "+_+"))
+t(({ eq }) => eq(vowelSign("d-*om!hviUq"), "d-*-m!hv-+q"))
+t(({ eq }) => eq(vowelSign("bcdfgh"), "bcdfgh"))
+
+
+Object.freeze(tests)
\ No newline at end of file