stream: add auto-destroy mode

PR-URL: https://github.com/nodejs/node/pull/22795
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/test/parallel/test-stream-auto-destroy.js b/test/parallel/test-stream-auto-destroy.js
new file mode 100644
index 0000000000..7bce8a5636
--- /dev/null
+++ b/test/parallel/test-stream-auto-destroy.js
@@ -0,0 +1,84 @@
+'use strict';
+const common = require('../common');
+const stream = require('stream');
+const assert = require('assert');
+
+{
+  const r = new stream.Readable({
+    autoDestroy: true,
+    read() {
+      this.push('hello');
+      this.push('world');
+      this.push(null);
+    },
+    destroy: common.mustCall((err, cb) => cb())
+  });
+
+  let ended = false;
+
+  r.resume();
+
+  r.on('end', common.mustCall(() => {
+    ended = true;
+  }));
+
+  r.on('close', common.mustCall(() => {
+    assert(ended);
+  }));
+}
+
+{
+  const w = new stream.Writable({
+    autoDestroy: true,
+    write(data, enc, cb) {
+      cb(null);
+    },
+    destroy: common.mustCall((err, cb) => cb())
+  });
+
+  let finished = false;
+
+  w.write('hello');
+  w.write('world');
+  w.end();
+
+  w.on('finish', common.mustCall(() => {
+    finished = true;
+  }));
+
+  w.on('close', common.mustCall(() => {
+    assert(finished);
+  }));
+}
+
+{
+  const t = new stream.Transform({
+    autoDestroy: true,
+    transform(data, enc, cb) {
+      cb(null, data);
+    },
+    destroy: common.mustCall((err, cb) => cb())
+  });
+
+  let ended = false;
+  let finished = false;
+
+  t.write('hello');
+  t.write('world');
+  t.end();
+
+  t.resume();
+
+  t.on('end', common.mustCall(() => {
+    ended = true;
+  }));
+
+  t.on('finish', common.mustCall(() => {
+    finished = true;
+  }));
+
+  t.on('close', common.mustCall(() => {
+    assert(ended);
+    assert(finished);
+  }));
+}