test: improve coverage of stream.Readable

PR-URL: #38702 Refs: https://coverage.nodejs.org/coverage-0996eb71edbd47d9/lib/internal/streams/readable.js.html#L401 Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Rich Trott <[email protected]> Reviewed-By: Daijiro Wachi <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Matteo Collina <[email protected]>
nodejs · Sep 4, 2021 · f13a302 · f13a302
1 parent 526e6c7
commit f13a302
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/test/parallel/test-streams-highwatermark.js b/test/parallel/test-streams-highwatermark.js
@@ -59,3 +59,16 @@ const { inspect } = require('util');
   readable._read = common.mustCall();
   readable.read(0);
 }
+
+{
+  // Parse size as decimal integer
+  ['1', '1.0', 1].forEach((size) => {
+    const readable = new stream.Readable({
+      read: common.mustCall(),
+      highWaterMark: 0,
+    });
+    readable.read(size);
+
+    assert.strictEqual(readable._readableState.highWaterMark, Number(size));
+  });
+}