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-rw-r--r--tests/node_compat/test/parallel/test-stream2-large-read-stall.js81
1 files changed, 81 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream2-large-read-stall.js b/tests/node_compat/test/parallel/test-stream2-large-read-stall.js
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@@ -0,0 +1,81 @@
+// 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.
+
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+
+// If everything aligns so that you do a read(n) of exactly the
+// remaining buffer, then make sure that 'end' still emits.
+
+const READSIZE = 100;
+const PUSHSIZE = 20;
+const PUSHCOUNT = 1000;
+const HWM = 50;
+
+const Readable = require('stream').Readable;
+const r = new Readable({
+ highWaterMark: HWM
+});
+const rs = r._readableState;
+
+r._read = push;
+
+r.on('readable', function() {
+ console.error('>> readable');
+ let ret;
+ do {
+ console.error(` > read(${READSIZE})`);
+ ret = r.read(READSIZE);
+ console.error(` < ${ret && ret.length} (${rs.length} remain)`);
+ } while (ret && ret.length === READSIZE);
+
+ console.error('<< after read()',
+ ret && ret.length,
+ rs.needReadable,
+ rs.length);
+});
+
+r.on('end', common.mustCall(function() {
+ assert.strictEqual(pushes, PUSHCOUNT + 1);
+}));
+
+let pushes = 0;
+function push() {
+ if (pushes > PUSHCOUNT)
+ return;
+
+ if (pushes++ === PUSHCOUNT) {
+ console.error(' push(EOF)');
+ return r.push(null);
+ }
+
+ console.error(` push #${pushes}`);
+ if (r.push(Buffer.allocUnsafe(PUSHSIZE)))
+ setTimeout(push, 1);
+}