summaryrefslogtreecommitdiff
path: root/cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js
diff options
context:
space:
mode:
Diffstat (limited to 'cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js')
-rw-r--r--cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js54
1 files changed, 0 insertions, 54 deletions
diff --git a/cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js b/cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js
deleted file mode 100644
index ac52d66a8..000000000
--- a/cli/tests/node_compat/test/parallel/test-fs-read-stream-concurrent-reads.js
+++ /dev/null
@@ -1,54 +0,0 @@
-// deno-fmt-ignore-file
-// deno-lint-ignore-file
-
-// Copyright Joyent and Node contributors. All rights reserved. MIT license.
-// Taken from Node 18.12.1
-// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
-
-'use strict';
-const common = require('../common');
-const fixtures = require('../common/fixtures');
-const assert = require('assert');
-const fs = require('fs');
-
-// Test that concurrent file read streams don’t interfere with each other’s
-// contents, and that the chunks generated by the reads only retain a
-// 'reasonable' amount of memory.
-
-// Refs: https://github.com/nodejs/node/issues/21967
-
-const filename = fixtures.path('loop.js'); // Some small non-homogeneous file.
-const content = fs.readFileSync(filename);
-
-const N = 2000;
-let started = 0;
-let done = 0;
-
-const arrayBuffers = new Set();
-
-function startRead() {
- ++started;
- const chunks = [];
- fs.createReadStream(filename)
- .on('data', (chunk) => {
- chunks.push(chunk);
- arrayBuffers.add(chunk.buffer);
- })
- .on('end', common.mustCall(() => {
- if (started < N)
- startRead();
- assert.deepStrictEqual(Buffer.concat(chunks), content);
- if (++done === N) {
- const retainedMemory =
- [...arrayBuffers].map((ab) => ab.byteLength).reduce((a, b) => a + b);
- assert(retainedMemory / (N * content.length) <= 3,
- `Retaining ${retainedMemory} bytes in ABs for ${N} ` +
- `chunks of size ${content.length}`);
- }
- }));
-}
-
-// Don’t start the reads all at once – that way we would have to allocate
-// a large amount of memory upfront.
-for (let i = 0; i < 6; ++i)
- startRead();