wip: code formatting nits continued

test/toLower.spec.js

@@ -0,0 +1,9 @@
+import toLower from '../src/toLower';
+
+describe('toLower', () => {
+    it('should convert whole string to lower case', () => {
+        expect(toLower('--Foo-Bar--')).toEqual('--foo-bar--');
+        expect(toLower('fooBar')).toEqual('foobar');
+        expect(toLower('__FOO_BAR__')).toEqual('__foo_bar__');
+    });
+});