generate new test that did already exist & update all module snippets with declaration

test/geometricProgression/geometricProgression.js

@@ -1,4 +1,4 @@
-module.exports = (end, start = 1, step = 2) =>
+module.exports = geometricProgression = (end, start = 1, step = 2) =>
 Array.from({ length: Math.floor(Math.log(end / start) / Math.log(step)) + 1 }).map(
 (v, i) => start * step ** i
 );