1 files changed, 43 insertions, 0 deletions
diff --git a/testing/web-platform/tests/compression/decompression-empty-input.tentative.any.js b/testing/web-platform/tests/compression/decompression-empty-input.tentative.any.js
new file mode 100644
index 0000000000..201db8ec0b
--- /dev/null
+++ b/testing/web-platform/tests/compression/decompression-empty-input.tentative.any.js
@@ -0,0 +1,43 @@
+// META: global=window,worker,shadowrealm
+
+'use strict';
+
+const gzipEmptyValue = new Uint8Array([31, 139, 8, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
+const deflateEmptyValue = new Uint8Array([120, 156, 3, 0, 0, 0, 0, 1]);
+const deflateRawEmptyValue = new Uint8Array([1, 0, 0, 255, 255]);
+
+promise_test(async t => {
+  const ds = new DecompressionStream('gzip');
+  const reader = ds.readable.getReader();
+  const writer = ds.writable.getWriter();
+  const writePromise = writer.write(gzipEmptyValue);
+  writer.close();
+  const { value, done } = await reader.read();
+  assert_true(done, "read() should set done");
+  assert_equals(value, undefined, "value should be undefined");
+  await writePromise;
+}, 'decompressing gzip empty input should work');
+
+promise_test(async t => {
+  const ds = new DecompressionStream('deflate');
+  const reader = ds.readable.getReader();
+  const writer = ds.writable.getWriter();
+  const writePromise = writer.write(deflateEmptyValue);
+  writer.close();
+  const { value, done } = await reader.read();
+  assert_true(done, "read() should set done");
+  assert_equals(value, undefined, "value should be undefined");
+  await writePromise;
+}, 'decompressing deflate empty input should work');
+
+promise_test(async t => {
+  const ds = new DecompressionStream('deflate-raw');
+  const reader = ds.readable.getReader();
+  const writer = ds.writable.getWriter();
+  const writePromise = writer.write(deflateRawEmptyValue);
+  writer.close();
+  const { value, done } = await reader.read();
+  assert_true(done, "read() should set done");
+  assert_equals(value, undefined, "value should be undefined");
+  await writePromise;
+}, 'decompressing deflate-raw empty input should work');