1 files changed, 124 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream2-readable-empty-buffer-no-eof.js b/tests/node_compat/test/parallel/test-stream2-readable-empty-buffer-no-eof.js
new file mode 100644
index 000000000..fca3b11f2
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream2-readable-empty-buffer-no-eof.js
@@ -0,0 +1,124 @@
+// 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';
+require('../common');
+const assert = require('assert');
+
+const Readable = require('stream').Readable;
+
+test1();
+test2();
+
+function test1() {
+  const r = new Readable();
+
+  // Should not end when we get a Buffer.alloc(0) or '' as the _read
+  // result that just means that there is *temporarily* no data, but to
+  // go ahead and try again later.
+  //
+  // note that this is very unusual.  it only works for crypto streams
+  // because the other side of the stream will call read(0) to cycle
+  // data through openssl.  that's why setImmediate() is used to call
+  // r.read(0) again later, otherwise there is no more work being done
+  // and the process just exits.
+
+  const buf = Buffer.alloc(5, 'x');
+  let reads = 5;
+  r._read = function(n) {
+    switch (reads--) {
+      case 5:
+        return setImmediate(() => {
+          return r.push(buf);
+        });
+      case 4:
+        setImmediate(() => {
+          return r.push(Buffer.alloc(0));
+        });
+        return setImmediate(r.read.bind(r, 0));
+      case 3:
+        setImmediate(r.read.bind(r, 0));
+        return process.nextTick(() => {
+          return r.push(Buffer.alloc(0));
+        });
+      case 2:
+        setImmediate(r.read.bind(r, 0));
+        return r.push(Buffer.alloc(0)); // Not-EOF!
+      case 1:
+        return r.push(buf);
+      case 0:
+        return r.push(null); // EOF
+      default:
+        throw new Error('unreachable');
+    }
+  };
+
+  const results = [];
+  function flow() {
+    let chunk;
+    while (null !== (chunk = r.read()))
+      results.push(String(chunk));
+  }
+  r.on('readable', flow);
+  r.on('end', () => {
+    results.push('EOF');
+  });
+  flow();
+
+  process.on('exit', () => {
+    assert.deepStrictEqual(results, [ 'xxxxx', 'xxxxx', 'EOF' ]);
+    console.log('ok');
+  });
+}
+
+function test2() {
+  const r = new Readable({ encoding: 'base64' });
+  let reads = 5;
+  r._read = function(n) {
+    if (!reads--)
+      return r.push(null); // EOF
+    return r.push(Buffer.from('x'));
+  };
+
+  const results = [];
+  function flow() {
+    let chunk;
+    while (null !== (chunk = r.read()))
+      results.push(String(chunk));
+  }
+  r.on('readable', flow);
+  r.on('end', () => {
+    results.push('EOF');
+  });
+  flow();
+
+  process.on('exit', () => {
+    assert.deepStrictEqual(results, [ 'eHh4', 'eHg=', 'EOF' ]);
+    console.log('ok');
+  });
+}