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metro-bundler: add fs#writeFileSync to the mock

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Reviewed By: rafeca

Differential Revision: D5931412

fbshipit-source-id: 2b51617b57963c424446b04e9381e6500323af56
This commit is contained in:
Jean Lauliac
2017-09-29 10:14:25 -07:00
committed by Facebook Github Bot
parent 7320ca5c7a
commit b3fc64285e
2 changed files with 93 additions and 5 deletions
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49
local-cli/util/__mocks__/fs.js
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@@ -11,9 +11,11 @@
'use strict';
const asyncify = require('async/asyncify');
const {EventEmitter} = require('events');
const {dirname} = require.requireActual('path');
const fs = jest.genMockFromModule('fs');
const invariant = require('fbjs/lib/invariant');
const path = require('path');
const stream = require.requireActual('stream');
@@ -74,8 +76,7 @@ fs.readFile.mockImplementation(function(filepath, encoding, callback) {
let node;
try {
node = getToNode(filepath);
// dir check
if (node && typeof node === 'object' && node.SYMLINK == null) {
if (isDirNode(node)) {
callback(new Error('Error readFile a dir: ' + filepath));
}
if (node == null) {
@@ -90,13 +91,51 @@ fs.readFile.mockImplementation(function(filepath, encoding, callback) {
fs.readFileSync.mockImplementation(function(filepath, encoding) {
const node = getToNode(filepath);
// dir check
if (node && typeof node === 'object' && node.SYMLINK == null) {
if (isDirNode(node)) {
throw new Error('Error readFileSync a dir: ' + filepath);
}
return node;
});
fs.writeFile.mockImplementation(asyncify(fs.writeFileSync));
fs.writeFileSync.mockImplementation((filePath, content, options) => {
if (options == null || typeof options === 'string') {
options = {encoding: options};
}
invariant(
options.encoding == null || options.encoding === 'utf8',
'`options` argument supports only `null` or `"utf8"`',
);
const dirPath = path.dirname(filePath);
const node = getToNode(dirPath);
if (!isDirNode(node)) {
throw fsError('ENOTDIR', 'not a directory: ' + dirPath);
}
node[path.basename(filePath)] = content;
});
fs.mkdir.mockImplementation(asyncify(fs.mkdirSync));
fs.mkdirSync.mockImplementation((dirPath, mode) => {
const parentPath = path.dirname(dirPath);
const node = getToNode(parentPath);
if (!isDirNode(node)) {
throw fsError('ENOTDIR', 'not a directory: ' + parentPath);
}
node[path.basename(dirPath)] = {};
});
function fsError(code, message) {
const error = new Error(code + ': ' + message);
error.code = code;
return error;
}
function isDirNode(node) {
return node && typeof node === 'object' && node.SYMLINK == null;
}
function readlinkSync(filepath) {
const node = getToNode(filepath);
if (node !== null && typeof node === 'object' && !!node.SYMLINK) {
@@ -250,7 +289,7 @@ fs.close.mockImplementation((fd, callback = noop) => {
callback(null);
});
let filesystem;
let filesystem = {};
fs.createReadStream.mockImplementation(filepath => {
if (!filepath.startsWith('/')) {