fix(node/zlib): accept dataview and buffer in zlib bindings (#21756)

Fixes #20516 
Follow up to #21747 and #21746

This tackles the last point of #20516 where certain inputs weren't
accepted in the other zlib methods

This adds the `toU8` conversion of `_brotli` to `_zlib.mjs`, when we
create the ZLibBuffer, we'll sanitize the input. I noticed that the
async had no handler for `string` input so I added that as well.

1 files changed, 30 insertions, 0 deletions

diff --git a/cli/tests/unit_node/zlib_test.ts b/cli/tests/unit_node/zlib_test.ts
index 1819be268..fa94493c1 100644
--- a/cli/tests/unit_node/zlib_test.ts
+++ b/cli/tests/unit_node/zlib_test.ts
@@ -9,6 +9,8 @@ import {
   createBrotliCompress,
   createBrotliDecompress,
   createDeflate,
+  gzipSync,
+  unzipSync,
 } from "node:zlib";
 import { Buffer } from "node:buffer";
 import { createReadStream, createWriteStream } from "node:fs";
@@ -32,6 +34,13 @@ Deno.test("brotli compression async", async () => {
   assertEquals(decompressed.toString(), "hello world");
 });
 
+Deno.test("gzip compression sync", { sanitizeResources: false }, () => {
+  const buf = Buffer.from("hello world");
+  const compressed = gzipSync(buf);
+  const decompressed = unzipSync(compressed);
+  assertEquals(decompressed.toString(), "hello world");
+});
+
 Deno.test("brotli compression", async () => {
   const { promise, resolve } = Promise.withResolvers<void>();
   const compress = createBrotliCompress();
@@ -125,3 +134,24 @@ Deno.test("should work with a buffer from an encoded string", () => {
   const decompressed = brotliDecompressSync(compressed);
   assertEquals(decompressed.toString(), "hello world");
 });
+
+Deno.test(
+  "zlib compression with dataview",
+  { sanitizeResources: false },
+  () => {
+    const buf = Buffer.from("hello world");
+    const compressed = gzipSync(new DataView(buf.buffer));
+    const decompressed = unzipSync(compressed);
+    assertEquals(decompressed.toString(), "hello world");
+  },
+);
+
+Deno.test("zlib compression with an encoded string", {
+  sanitizeResources: false,
+}, () => {
+  const encoder = new TextEncoder();
+  const buffer = encoder.encode("hello world");
+  const compressed = gzipSync(buffer);
+  const decompressed = unzipSync(compressed);
+  assertEquals(decompressed.toString(), "hello world");
+});