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test/parallel/test-stream-readable-ended.js

@@ -0,0 +1,46 @@
+'use strict';
+
+const common = require('../common');
+const { Readable } = require('stream');
+const assert = require('assert');
+
+// basic
+{
+  // Find it on Readable.prototype
+  assert(Object.hasOwn(Readable.prototype, 'readableEnded'));
+}
+
+// event
+{
+  const readable = new Readable();
+
+  readable._read = () => {
+    // The state ended should start in false.
+    assert.strictEqual(readable.readableEnded, false);
+    readable.push('asd');
+    assert.strictEqual(readable.readableEnded, false);
+    readable.push(null);
+    assert.strictEqual(readable.readableEnded, false);
+  };
+
+  readable.on('end', common.mustCall(() => {
+    assert.strictEqual(readable.readableEnded, true);
+  }));
+
+  readable.on('data', common.mustCall(() => {
+    assert.strictEqual(readable.readableEnded, false);
+  }));
+}
+
+// Verifies no `error` triggered on multiple .push(null) invocations
+{
+  const readable = new Readable();
+
+  readable.on('readable', () => { readable.read(); });
+  readable.on('error', common.mustNotCall());
+  readable.on('end', common.mustCall());
+
+  readable.push('a');
+  readable.push(null);
+  readable.push(null);
+}