mirror of https://gitee.com/openkylin/nodejs.git
41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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// The following tests validate base functionality for the fs.promises
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// FileHandle.appendFile method.
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const fs = require('fs');
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const { open } = fs.promises;
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const path = require('path');
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const tmpdir = require('../common/tmpdir');
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const assert = require('assert');
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const tmpDir = tmpdir.path;
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tmpdir.refresh();
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async function validateAppendBuffer() {
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const filePath = path.resolve(tmpDir, 'tmp-append-file-buffer.txt');
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const fileHandle = await open(filePath, 'a');
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const buffer = Buffer.from('a&Dp'.repeat(100), 'utf8');
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await fileHandle.appendFile(buffer);
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const appendedFileData = fs.readFileSync(filePath);
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assert.deepStrictEqual(appendedFileData, buffer);
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}
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async function validateAppendString() {
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const filePath = path.resolve(tmpDir, 'tmp-append-file-string.txt');
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const fileHandle = await open(filePath, 'a');
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const string = 'x~yz'.repeat(100);
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await fileHandle.appendFile(string);
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const stringAsBuffer = Buffer.from(string, 'utf8');
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const appendedFileData = fs.readFileSync(filePath);
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assert.deepStrictEqual(appendedFileData, stringAsBuffer);
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}
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validateAppendBuffer()
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.then(validateAppendString)
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.then(common.mustCall());
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