import assert from 'node:assert'; import lodashStable from 'lodash'; import { stubTrue, stubFalse, args, symbol } from './utils'; import isFinite from '../src/isFinite'; describe('isFinite', () => { it('should return `true` for finite values', () => { const values = [0, 1, 3.14, -1], expected = lodashStable.map(values, stubTrue), actual = lodashStable.map(values, isFinite); assert.deepStrictEqual(actual, expected); }); it('should return `false` for non-finite values', () => { const values = [NaN, Infinity, -Infinity, Object(1)], expected = lodashStable.map(values, stubFalse), actual = lodashStable.map(values, isFinite); assert.deepStrictEqual(actual, expected); }); it('should return `false` for non-numeric values', () => { const values = [undefined, [], true, '', ' ', '2px'], expected = lodashStable.map(values, stubFalse), actual = lodashStable.map(values, isFinite); assert.deepStrictEqual(actual, expected); assert.strictEqual(isFinite(args), false); assert.strictEqual(isFinite([1, 2, 3]), false); assert.strictEqual(isFinite(true), false); assert.strictEqual(isFinite(new Date()), false); assert.strictEqual(isFinite(new Error()), false); assert.strictEqual(isFinite({ a: 1 }), false); assert.strictEqual(isFinite(/x/), false); assert.strictEqual(isFinite('a'), false); assert.strictEqual(isFinite(symbol), false); }); it('should return `false` for numeric string values', () => { const values = ['2', '0', '08'], expected = lodashStable.map(values, stubFalse), actual = lodashStable.map(values, isFinite); assert.deepStrictEqual(actual, expected); }); });