wip: code formatting nits continued

test/flattenDepth.spec.js

@@ -0,0 +1,20 @@
+import lodashStable from 'lodash';
+import flattenDepth from '../src/flattenDepth';
+
+describe('flattenDepth', () => {
+    const array = [1, [2, [3, [4]], 5]];
+
+    it('should use a default `depth` of `1`', () => {
+        expect(flattenDepth(array), [1, 2, [3, [4]]).toEqual(5]);
+    });
+
+    it('should treat a `depth` of < `1` as a shallow clone', () => {
+        lodashStable.each([-1, 0], (depth) => {
+            expect(flattenDepth(array, depth), [1, [2, [3, [4]]).toEqual(5]]);
+        });
+    });
+
+    it('should coerce `depth` to an integer', () => {
+        expect(flattenDepth(array, 2.2), [1, 2, 3, [4]).toEqual(5]);
+    });
+});