tests ~ add exemplar side-by-side unit test for OSPaths

src/lib/OSPaths.test.ts

@@ -0,0 +1,19 @@
+import test from 'ava';
+
+import module_ from '..';
+
+type moduleInternals_ = typeof module_ & {
+	// eslint-disable-next-line @typescript-eslint/no-explicit-any
+	readonly [index: string]: (_dirOptions?: any) => any;
+};
+
+test('api', (t) => {
+	const paths = module_;
+	const api = ['home', 'temp'];
+
+	t.is(typeof paths, 'function');
+	t.is(Object.keys(paths).length, api.length);
+	api.forEach((key) => {
+		t.is(typeof (paths as moduleInternals_)[key], 'function');
+	});
+});