fix(ext/node): flush brotli decompression stream (#22856)

Fixes https://github.com/denoland/deno/issues/22259

The decompressed input size was not restored because of improper
flushing of the CBrotliDecompressStream state.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/unit_node/zlib_test.ts b/tests/unit_node/zlib_test.ts
index 94b1c63ca..fa09bd687 100644
--- a/tests/unit_node/zlib_test.ts
+++ b/tests/unit_node/zlib_test.ts
@@ -171,3 +171,13 @@ Deno.test("brotli large chunk size", async () => {
   );
   assertEquals(output.length, input.length);
 });
+
+Deno.test("brotli decompress flush restore size", async () => {
+  const input = new Uint8Array(1000000);
+  const output = await buffer(
+    Readable.from([input])
+      .pipe(createBrotliCompress())
+      .pipe(createBrotliDecompress()),
+  );
+  assertEquals(output.length, input.length);
+});