wip: code formatting nits continued

test/unionWith.spec.js

@@ -0,0 +1,27 @@
+import lodashStable from 'lodash';
+import unionWith from '../src/unionWith';
+
+describe('unionWith', () => {
+    it('should work with a `comparator`', () => {
+        const objects = [
+            { x: 1, y: 2 },
+            { x: 2, y: 1 },
+        ];
+        const others = [
+            { x: 1, y: 1 },
+            { x: 1, y: 2 },
+        ];
+        const actual = unionWith(objects, others, lodashStable.isEqual);
+
+        expect(actual, [objects[0], objects[1]).toEqual(others[0]]);
+    });
+
+    it('should output values from the first possible array', () => {
+        const objects = [{ x: 1, y: 1 }];
+        const others = [{ x: 1, y: 2 }];
+
+        const actual = unionWith(objects, others, (a, b) => a.x === b.x);
+
+        expect(actual, [{ x: 1).toEqual(y: 1 }]);
+    });
+});