Import wpt@503f5b5f78ec4e87d144f78609f363f0ed0ea8db

third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js

Index: third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js
diff --git a/third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js b/third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js
index c284338a3c381a423c6365357d3ebb70afa31c72..bb48859ef6aeb8da2b27bb8dd12db1ad4df959af 100644
--- a/third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js
+++ b/third_party/WebKit/LayoutTests/external/wpt/streams/writable-streams/general.js
@@ -33,6 +33,17 @@ promise_test(() => {
 }, 'desiredSize on a writer for a closed stream');
 
 test(() => {
+  const ws = new WritableStream({
+    start(c) {
+      c.error();
+    }
+  });
+
+  const writer = ws.getWriter();
+  assert_equals(writer.desiredSize, null, 'desiredSize should be null');
+}, 'desiredSize on a writer for an errored stream');
+
+test(() => {
   const ws = new WritableStream({});
 
   const writer = ws.getWriter();