1 files changed, 30 insertions, 0 deletions
diff --git a/testing/web-platform/tests/compression/decompression-uint8array-output.tentative.any.js b/testing/web-platform/tests/compression/decompression-uint8array-output.tentative.any.js
new file mode 100644
index 0000000000..0c45a0aaa7
--- /dev/null
+++ b/testing/web-platform/tests/compression/decompression-uint8array-output.tentative.any.js
@@ -0,0 +1,30 @@
+// META: global=window,worker,shadowrealm
+// META: timeout=long
+//
+// This test isn't actually slow usually, but sometimes it takes >10 seconds on
+// Firefox with service worker for no obvious reason.
+
+'use strict';
+
+const deflateChunkValue = new Uint8Array([120, 156, 75, 173, 40, 72, 77, 46, 73, 77, 81, 200, 47, 45, 41, 40, 45, 1, 0, 48, 173, 6, 36]);
+const gzipChunkValue = new Uint8Array([31, 139, 8, 0, 0, 0, 0, 0, 0, 3, 75, 173, 40, 72, 77, 46, 73, 77, 81, 200, 47, 45, 41, 40, 45, 1, 0, 176, 1, 57, 179, 15, 0, 0, 0]);
+
+promise_test(async t => {
+  const ds = new DecompressionStream('deflate');
+  const reader = ds.readable.getReader();
+  const writer = ds.writable.getWriter();
+  const writePromise = writer.write(deflateChunkValue);
+  const { value } = await reader.read();
+  assert_equals(value.constructor, Uint8Array, "type should match");
+  await writePromise;
+}, 'decompressing deflated output should give Uint8Array chunks');
+
+promise_test(async t => {
+  const ds = new DecompressionStream('gzip');
+  const reader = ds.readable.getReader();
+  const writer = ds.writable.getWriter();
+  const writePromise = writer.write(gzipChunkValue);
+  const { value } = await reader.read();
+  assert_equals(value.constructor, Uint8Array, "type should match");
+  await writePromise;
+}, 'decompressing gzip output should give Uint8Array chunks');