1 files changed, 76 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fetch/api/response/response-stream-disturbed-6.any.js b/testing/web-platform/tests/fetch/api/response/response-stream-disturbed-6.any.js
new file mode 100644
index 0000000000..61d8544f07
--- /dev/null
+++ b/testing/web-platform/tests/fetch/api/response/response-stream-disturbed-6.any.js
@@ -0,0 +1,76 @@
+// META: global=window,worker
+// META: title=ReadableStream disturbed tests, via Response's bodyUsed property
+
+"use strict";
+
+test(() => {
+  const stream = new ReadableStream();
+  const response = new Response(stream);
+  assert_false(response.bodyUsed, "On construction");
+
+  const reader = stream.getReader();
+  assert_false(response.bodyUsed, "After getting a reader");
+
+  reader.read();
+  assert_true(response.bodyUsed, "After calling stream.read()");
+}, "A non-closed stream on which read() has been called");
+
+test(() => {
+  const stream = new ReadableStream();
+  const response = new Response(stream);
+  assert_false(response.bodyUsed, "On construction");
+
+  const reader = stream.getReader();
+  assert_false(response.bodyUsed, "After getting a reader");
+
+  reader.cancel();
+  assert_true(response.bodyUsed, "After calling stream.cancel()");
+}, "A non-closed stream on which cancel() has been called");
+
+test(() => {
+  const stream = new ReadableStream({
+    start(c) {
+      c.close();
+    }
+  });
+  const response = new Response(stream);
+  assert_false(response.bodyUsed, "On construction");
+
+  const reader = stream.getReader();
+  assert_false(response.bodyUsed, "After getting a reader");
+
+  reader.read();
+  assert_true(response.bodyUsed, "After calling stream.read()");
+}, "A closed stream on which read() has been called");
+
+test(() => {
+  const stream = new ReadableStream({
+    start(c) {
+      c.error(new Error("some error"));
+    }
+  });
+  const response = new Response(stream);
+  assert_false(response.bodyUsed, "On construction");
+
+  const reader = stream.getReader();
+  assert_false(response.bodyUsed, "After getting a reader");
+
+  reader.read().then(() => { }, () => { });
+  assert_true(response.bodyUsed, "After calling stream.read()");
+}, "An errored stream on which read() has been called");
+
+test(() => {
+  const stream = new ReadableStream({
+    start(c) {
+      c.error(new Error("some error"));
+    }
+  });
+  const response = new Response(stream);
+  assert_false(response.bodyUsed, "On construction");
+
+  const reader = stream.getReader();
+  assert_false(response.bodyUsed, "After getting a reader");
+
+  reader.cancel().then(() => { }, () => { });
+  assert_true(response.bodyUsed, "After calling stream.cancel()");
+}, "An errored stream on which cancel() has been called");