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| 1 | +'use strict'; |
| 2 | +const common = require('../common'); |
| 3 | +const tmpdir = require('../common/tmpdir'); |
| 4 | +const assert = require('node:assert'); |
| 5 | +const fs = require('node:fs'); |
| 6 | +const fsp = require('node:fs/promises'); |
| 7 | +const test = require('node:test'); |
| 8 | +const data = 'foo'; |
| 9 | +let cnt = 0; |
| 10 | + |
| 11 | +function nextFile() { |
| 12 | + return tmpdir.resolve(`${cnt++}.out`); |
| 13 | +} |
| 14 | + |
| 15 | +tmpdir.refresh(); |
| 16 | + |
| 17 | +test('synchronous version', async (t) => { |
| 18 | + await t.test('validation', (t) => { |
| 19 | + for (const v of ['true', '', 0, 1, [], {}, Symbol()]) { |
| 20 | + assert.throws(() => { |
| 21 | + fs.appendFileSync(nextFile(), data, { flush: v }); |
| 22 | + }, { code: 'ERR_INVALID_ARG_TYPE' }); |
| 23 | + } |
| 24 | + }); |
| 25 | + |
| 26 | + await t.test('performs flush', (t) => { |
| 27 | + const spy = t.mock.method(fs, 'fsyncSync'); |
| 28 | + const file = nextFile(); |
| 29 | + fs.appendFileSync(file, data, { flush: true }); |
| 30 | + const calls = spy.mock.calls; |
| 31 | + assert.strictEqual(calls.length, 1); |
| 32 | + assert.strictEqual(calls[0].result, undefined); |
| 33 | + assert.strictEqual(calls[0].error, undefined); |
| 34 | + assert.strictEqual(calls[0].arguments.length, 1); |
| 35 | + assert.strictEqual(typeof calls[0].arguments[0], 'number'); |
| 36 | + assert.strictEqual(fs.readFileSync(file, 'utf8'), data); |
| 37 | + }); |
| 38 | + |
| 39 | + await t.test('does not perform flush', (t) => { |
| 40 | + const spy = t.mock.method(fs, 'fsyncSync'); |
| 41 | + |
| 42 | + for (const v of [undefined, null, false]) { |
| 43 | + const file = nextFile(); |
| 44 | + fs.appendFileSync(file, data, { flush: v }); |
| 45 | + assert.strictEqual(fs.readFileSync(file, 'utf8'), data); |
| 46 | + } |
| 47 | + |
| 48 | + assert.strictEqual(spy.mock.calls.length, 0); |
| 49 | + }); |
| 50 | +}); |
| 51 | + |
| 52 | +test('callback version', async (t) => { |
| 53 | + await t.test('validation', (t) => { |
| 54 | + for (const v of ['true', '', 0, 1, [], {}, Symbol()]) { |
| 55 | + assert.throws(() => { |
| 56 | + fs.appendFileSync(nextFile(), data, { flush: v }); |
| 57 | + }, { code: 'ERR_INVALID_ARG_TYPE' }); |
| 58 | + } |
| 59 | + }); |
| 60 | + |
| 61 | + await t.test('performs flush', (t, done) => { |
| 62 | + const spy = t.mock.method(fs, 'fsync'); |
| 63 | + const file = nextFile(); |
| 64 | + fs.appendFile(file, data, { flush: true }, common.mustSucceed(() => { |
| 65 | + const calls = spy.mock.calls; |
| 66 | + assert.strictEqual(calls.length, 1); |
| 67 | + assert.strictEqual(calls[0].result, undefined); |
| 68 | + assert.strictEqual(calls[0].error, undefined); |
| 69 | + assert.strictEqual(calls[0].arguments.length, 2); |
| 70 | + assert.strictEqual(typeof calls[0].arguments[0], 'number'); |
| 71 | + assert.strictEqual(typeof calls[0].arguments[1], 'function'); |
| 72 | + assert.strictEqual(fs.readFileSync(file, 'utf8'), data); |
| 73 | + done(); |
| 74 | + })); |
| 75 | + }); |
| 76 | + |
| 77 | + await t.test('does not perform flush', (t, done) => { |
| 78 | + const values = [undefined, null, false]; |
| 79 | + const spy = t.mock.method(fs, 'fsync'); |
| 80 | + let cnt = 0; |
| 81 | + |
| 82 | + for (const v of values) { |
| 83 | + const file = nextFile(); |
| 84 | + |
| 85 | + fs.appendFile(file, data, { flush: v }, common.mustSucceed(() => { |
| 86 | + assert.strictEqual(fs.readFileSync(file, 'utf8'), data); |
| 87 | + cnt++; |
| 88 | + |
| 89 | + if (cnt === values.length) { |
| 90 | + assert.strictEqual(spy.mock.calls.length, 0); |
| 91 | + done(); |
| 92 | + } |
| 93 | + })); |
| 94 | + } |
| 95 | + }); |
| 96 | +}); |
| 97 | + |
| 98 | +test('promise based version', async (t) => { |
| 99 | + await t.test('validation', async (t) => { |
| 100 | + for (const v of ['true', '', 0, 1, [], {}, Symbol()]) { |
| 101 | + await assert.rejects(() => { |
| 102 | + return fsp.appendFile(nextFile(), data, { flush: v }); |
| 103 | + }, { code: 'ERR_INVALID_ARG_TYPE' }); |
| 104 | + } |
| 105 | + }); |
| 106 | + |
| 107 | + await t.test('success path', async (t) => { |
| 108 | + for (const v of [undefined, null, false, true]) { |
| 109 | + const file = nextFile(); |
| 110 | + await fsp.appendFile(file, data, { flush: v }); |
| 111 | + assert.strictEqual(await fsp.readFile(file, 'utf8'), data); |
| 112 | + } |
| 113 | + }); |
| 114 | +}); |
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