diff --git a/test/vectorDistance.test.js b/test/vectorDistance.test.js
new file mode 100644
index 000000000..2efa78bc0
--- /dev/null
+++ b/test/vectorDistance.test.js
@@ -0,0 +1,9 @@
+const expect = require('expect');
+const {vectorDistance} = require('./_30s.js');
+
+test('vectorDistance is a Function', () => {
+  expect(vectorDistance).toBeInstanceOf(Function);
+});
+test('Calculates the distance between two vectors', () => {
+  expect(distance(10,0,5,20,0,10)).toBeCloseTo(11.180339887498949, 5);
+});