chore: add tests, gh actions and prettier config

test/project/foo-bar/index.js

@@ -0,0 +1,10 @@
+/**
+ * Matches any unicode character between "foo" and "bar"
+ * @param {string} str
+ * @returns {boolean}
+ */
+function fooBar(str) {
+  return str.match(/\p{L}/gu)
+}
+
+module.exports = fooBar

test/project/foo-bar/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "foo-bar",
+  "version": "0.0.1",
+  "description": "Dummy package that should be transformed",
+  "main": "index.js"
+}