1// Flags: --expose-internals 2'use strict'; 3 4require('../common'); 5 6const assert = require('assert'); 7const { 8 ArrayOfApply, 9 ArrayPrototypePushApply, 10 ArrayPrototypeUnshiftApply, 11 MathMaxApply, 12 MathMinApply, 13 StringPrototypeConcatApply, 14 TypedArrayOfApply, 15} = require('internal/test/binding').primordials; 16 17{ 18 const arr1 = [1, 2, 3]; 19 const arr2 = ArrayOfApply(arr1); 20 21 assert.deepStrictEqual(arr2, arr1); 22 assert.notStrictEqual(arr2, arr1); 23} 24 25{ 26 const array = [1, 2, 3]; 27 const i32Array = TypedArrayOfApply(Int32Array, array); 28 29 assert(i32Array instanceof Int32Array); 30 assert.strictEqual(i32Array.length, array.length); 31 for (let i = 0, { length } = array; i < length; i++) { 32 assert.strictEqual(i32Array[i], array[i], `i32Array[${i}] === array[${i}]`); 33 } 34} 35 36{ 37 const arr1 = [1, 2, 3]; 38 const arr2 = [4, 5, 6]; 39 40 const expected = [...arr1, ...arr2]; 41 42 assert.strictEqual(ArrayPrototypePushApply(arr1, arr2), expected.length); 43 assert.deepStrictEqual(arr1, expected); 44} 45 46{ 47 const arr1 = [1, 2, 3]; 48 const arr2 = [4, 5, 6]; 49 50 const expected = [...arr2, ...arr1]; 51 52 assert.strictEqual(ArrayPrototypeUnshiftApply(arr1, arr2), expected.length); 53 assert.deepStrictEqual(arr1, expected); 54} 55 56{ 57 const array = [1, 2, 3]; 58 assert.strictEqual(MathMaxApply(array), 3); 59 assert.strictEqual(MathMinApply(array), 1); 60} 61 62{ 63 let hint; 64 const obj = { [Symbol.toPrimitive](h) { 65 hint = h; 66 return '[object Object]'; 67 } }; 68 69 const args = ['foo ', obj, ' bar']; 70 const result = StringPrototypeConcatApply('', args); 71 72 assert.strictEqual(hint, 'string'); 73 assert.strictEqual(result, 'foo [object Object] bar'); 74} 75