wip: code formatting nits continued

test/isArrayLike.spec.js

@@ -0,0 +1,44 @@
+import lodashStable from 'lodash';
+import { args, stubTrue, falsey, asyncFunc, genFunc, slice, symbol, realm } from './utils';
+import isArrayLike from '../src/isArrayLike';
+
+describe('isArrayLike', () => {
+    it('should return `true` for array-like values', () => {
+        const values = [args, [1, 2, 3], { 0: 'a', length: 1 }, 'a'];
+        const expected = lodashStable.map(values, stubTrue);
+        const actual = lodashStable.map(values, isArrayLike);
+
+        expect(actual).toEqual(expected);
+    });
+
+    it('should return `false` for non-arrays', () => {
+        const expected = lodashStable.map(falsey, (value) => value === '');
+
+        const actual = lodashStable.map(falsey, (value, index) =>
+            index ? isArrayLike(value) : isArrayLike(),
+        );
+
+        expect(actual).toEqual(expected);
+
+        expect(isArrayLike(true)).toBe(false);
+        expect(isArrayLike(new Date())).toBe(false);
+        expect(isArrayLike(new Error())).toBe(false);
+        expect(isArrayLike(asyncFunc)).toBe(false);
+        expect(isArrayLike(genFunc)).toBe(false);
+        expect(isArrayLike(slice)).toBe(false);
+        expect(isArrayLike({ a: 1 })).toBe(false);
+        expect(isArrayLike(1)).toBe(false);
+        expect(isArrayLike(/x/)).toBe(false);
+        expect(isArrayLike(symbol)).toBe(false);
+    });
+
+    it('should work with an array from another realm', () => {
+        if (realm.object) {
+            const values = [realm.arguments, realm.array, realm.string];
+            const expected = lodashStable.map(values, stubTrue);
+            const actual = lodashStable.map(values, isArrayLike);
+
+            expect(actual).toEqual(expected);
+        }
+    });
+});