wip: code formatting nits continued

test/isBuffer.spec.js

@@ -0,0 +1,40 @@
+import lodashStable from 'lodash';
+import { falsey, stubFalse, args, slice, symbol, isStrict, lodashBizarro } from './utils';
+import isBuffer from '../src/isBuffer';
+
+describe('isBuffer', () => {
+    it('should return `true` for buffers', () => {
+        if (Buffer) {
+            assert.equal(`${isBuffer}`, '');
+            expect(isBuffer(Buffer.alloc(2))).toBe(true);
+        }
+    });
+
+    it('should return `false` for non-buffers', () => {
+        const expected = lodashStable.map(falsey, stubFalse);
+
+        const actual = lodashStable.map(falsey, (value: false, index: number) =>
+            index ? isBuffer(value) : isBuffer(),
+        );
+
+        expect(actual).toEqual(expected);
+
+        expect(isBuffer(args)).toBe(false);
+        expect(isBuffer([1])).toBe(false);
+        expect(isBuffer(true)).toBe(false);
+        expect(isBuffer(new Date())).toBe(false);
+        expect(isBuffer(new Error())).toBe(false);
+        expect(isBuffer(slice)).toBe(false);
+        expect(isBuffer({ a: 1 })).toBe(false);
+        expect(isBuffer(1)).toBe(false);
+        expect(isBuffer(/x/)).toBe(false);
+        expect(isBuffer('a')).toBe(false);
+        expect(isBuffer(symbol)).toBe(false);
+    });
+
+    it('should return `false` if `Buffer` is not defined', () => {
+        if (!isStrict && Buffer && lodashBizarro) {
+            expect(lodashBizarro.isBuffer(Buffer.alloc(2))).toBe(false);
+        }
+    });
+});