wip: code formatting nits continued

test/isArrayBuffer.spec.js

@@ -0,0 +1,39 @@
+import lodashStable from 'lodash';
+import { arrayBuffer, falsey, stubFalse, args, slice, symbol, realm } from './utils';
+import isArrayBuffer from '../src/isArrayBuffer';
+
+describe('isArrayBuffer', () => {
+    it('should return `true` for array buffers', () => {
+        if (ArrayBuffer) {
+            expect(isArrayBuffer(arrayBuffer)).toBe(true);
+        }
+    });
+
+    it('should return `false` for non array buffers', () => {
+        const expected = lodashStable.map(falsey, stubFalse);
+
+        const actual = lodashStable.map(falsey, (value, index) =>
+            index ? isArrayBuffer(value) : isArrayBuffer(),
+        );
+
+        expect(actual).toEqual(expected);
+
+        expect(isArrayBuffer(args)).toBe(false);
+        expect(isArrayBuffer([1])).toBe(false);
+        expect(isArrayBuffer(true)).toBe(false);
+        expect(isArrayBuffer(new Date())).toBe(false);
+        expect(isArrayBuffer(new Error())).toBe(false);
+        expect(isArrayBuffer(slice)).toBe(false);
+        expect(isArrayBuffer({ a: 1 })).toBe(false);
+        expect(isArrayBuffer(1)).toBe(false);
+        expect(isArrayBuffer(/x/)).toBe(false);
+        expect(isArrayBuffer('a')).toBe(false);
+        expect(isArrayBuffer(symbol)).toBe(false);
+    });
+
+    it('should work with array buffers from another realm', () => {
+        if (realm.arrayBuffer) {
+            expect(isArrayBuffer(realm.arrayBuffer)).toBe(true);
+        }
+    });
+});