nodejs
diff --git a/Collapse file
‎test/parallel/test-stream-writable-needdrain-state.js‎
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+23Lines changed: 23 additions & 0 deletions b/Collapse file
‎test/parallel/test-stream-writable-needdrain-state.js‎
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+23Lines changed: 23 additions & 0 deletions
@@ -0,0 +1,23 @@
+'use strict';
+
+const common = require('../common');
+const stream = require('stream');
+const assert = require('assert');
+
+const transform = new stream.Transform({
+  transform: _transform,
+  highWaterMark: 1
+});
+
+function _transform(chunk, encoding, cb) {
+  assert.strictEqual(transform._writableState.needDrain, true);
+  cb();
+}
+
+assert.strictEqual(transform._writableState.needDrain, false);
+
+transform.write('asdasd', common.mustCall(() => {
+  assert.strictEqual(transform._writableState.needDrain, false);
+}));
+
+assert.strictEqual(transform._writableState.needDrain, true);