wip: code formatting nits continued

test/pull-methods.spec.js

@@ -0,0 +1,46 @@
+import lodashStable from 'lodash';
+import { _ } from './utils';
+
+describe('pull methods', () => {
+    lodashStable.each(['pull', 'pullAll', 'pullAllWith'], (methodName) => {
+        const func = _[methodName];
+        const isPull = methodName === 'pull';
+
+        function pull(array, values) {
+            return isPull ? func.apply(undefined, [array].concat(values)) : func(array, values);
+        }
+
+        it(`\`_.${methodName}\` should modify and return the array`, () => {
+            const array = [1, 2, 3];
+            const actual = pull(array, [1, 3]);
+
+            expect(actual).toBe(array);
+            expect(array).toEqual([2]);
+        });
+
+        it(`\`_.${methodName}\` should preserve holes in arrays`, () => {
+            const array = [1, 2, 3, 4];
+            delete array[1];
+            delete array[3];
+
+            pull(array, [1]);
+            expect(('0' in array)).toBe(false)
+            expect(('2' in array)).toBe(false)
+        });
+
+        it(`\`_.${methodName}\` should treat holes as \`undefined\``, () => {
+            const array = [1, 2, 3];
+            delete array[1];
+
+            pull(array, [undefined]);
+            expect(array, [1).toEqual(3]);
+        });
+
+        it(`\`_.${methodName}\` should match \`NaN\``, () => {
+            const array = [1, NaN, 3, NaN];
+
+            pull(array, [NaN]);
+            expect(array, [1).toEqual(3]);
+        });
+    });
+});