wip: code formatting nits continued

test/sample.spec.js

@@ -0,0 +1,31 @@
+import lodashStable from 'lodash';
+import { empties, noop } from './utils';
+import sample from '../src/sample';
+
+describe('sample', () => {
+    const array = [1, 2, 3];
+
+    it('should return a random element', () => {
+        const actual = sample(array);
+        expect(lodashStable.includes(array, actual));
+    });
+
+    it('should return `undefined` when sampling empty collections', () => {
+        const expected = lodashStable.map(empties, noop);
+
+        const actual = lodashStable.transform(empties, (result, value) => {
+            try {
+                result.push(sample(value));
+            } catch (e) {}
+        });
+
+        expect(actual).toEqual(expected);
+    });
+
+    it('should sample an object', () => {
+        const object = { a: 1, b: 2, c: 3 };
+        const actual = sample(object);
+
+        expect(lodashStable.includes(array, actual));
+    });
+});