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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/fs-write-stream-atomic/test/slow-close.js
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diff --git a/node_modules/fs-write-stream-atomic/test/slow-close.js b/node_modules/fs-write-stream-atomic/test/slow-close.js
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+'use strict'
+var fs = require('graceful-fs')
+var path = require('path')
+var test = require('tap').test
+var rimraf = require('rimraf')
+var writeStream = require('../index.js')
+
+var target = path.resolve(__dirname, 'test-chown')
+
+test('slow close', function (t) {
+ t.plan(2)
+ // The goal here is to simulate the "file close" step happening so slowly
+ // that the whole close/rename process could finish before the file is
+ // actually closed (and thus buffers truely flushed to the OS). In
+ // previous versions of this module, this would result in the module
+ // emitting finish & close before the file was fully written and in
+ // turn, could break other layers that tried to read the new file.
+ var realEmit = fs.WriteStream.prototype.emit
+ var reallyClosed = false
+ fs.WriteStream.prototype.emit = function (event) {
+ if (event !== 'close') return realEmit.apply(this, arguments)
+ setTimeout(function () {
+ reallyClosed = true
+ realEmit.call(this, 'close')
+ }.bind(this), 200)
+ }
+ var stream = writeStream(target)
+ stream.on('finish', function () {
+ t.is(reallyClosed, true, "didn't finish before target was closed")
+ })
+ stream.on('close', function () {
+ t.is(reallyClosed, true, "didn't close before target was closed")
+ })
+ stream.end()
+})
+
+test('cleanup', function (t) {
+ rimraf.sync(target)
+ t.end()
+})