test: run unit tests with DENO_FUTURE=1 (#24400)

This commit adds another test suite that runs all Deno unit tests
with `DENO_FUTURE=1` flag to ensure all APIs are working as
expected, once Deno 2 is released.

---------

Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>

1 files changed, 22 insertions, 19 deletions

diff --git a/tests/unit/io_test.ts b/tests/unit/io_test.ts
index 5b55729dd..44a04698c 100644
--- a/tests/unit/io_test.ts
+++ b/tests/unit/io_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
-import { assertEquals } from "./test_util.ts";
+import { assertEquals, DENO_FUTURE } from "./test_util.ts";
 import { Buffer } from "@std/io/buffer";
 
 const DEFAULT_BUF_SIZE = 32 * 1024;
@@ -28,7 +28,7 @@ function spyRead(obj: Buffer): Spy {
   return spy;
 }
 
-Deno.test(async function copyWithDefaultBufferSize() {
+Deno.test({ ignore: DENO_FUTURE }, async function copyWithDefaultBufferSize() {
   const xBytes = repeat("b", DEFAULT_BUF_SIZE);
   const reader = new Buffer(xBytes.buffer as ArrayBuffer);
   const write = new Buffer();
@@ -43,7 +43,7 @@ Deno.test(async function copyWithDefaultBufferSize() {
   assertEquals(readSpy.calls, 2); // read with DEFAULT_BUF_SIZE bytes + read with 0 bytes
 });
 
-Deno.test(async function copyWithCustomBufferSize() {
+Deno.test({ ignore: DENO_FUTURE }, async function copyWithCustomBufferSize() {
   const bufSize = 1024;
   const xBytes = repeat("b", DEFAULT_BUF_SIZE);
   const reader = new Buffer(xBytes.buffer as ArrayBuffer);
@@ -59,19 +59,22 @@ Deno.test(async function copyWithCustomBufferSize() {
   assertEquals(readSpy.calls, DEFAULT_BUF_SIZE / bufSize + 1);
 });
 
-Deno.test({ permissions: { write: true } }, async function copyBufferToFile() {
-  const filePath = "test-file.txt";
-  // bigger than max File possible buffer 16kb
-  const bufSize = 32 * 1024;
-  const xBytes = repeat("b", bufSize);
-  const reader = new Buffer(xBytes.buffer as ArrayBuffer);
-  const write = await Deno.open(filePath, { write: true, create: true });
-
-  // deno-lint-ignore no-deprecated-deno-api
-  const n = await Deno.copy(reader, write, { bufSize });
-
-  assertEquals(n, xBytes.length);
-
-  write.close();
-  await Deno.remove(filePath);
-});
+Deno.test(
+  { ignore: DENO_FUTURE, permissions: { write: true } },
+  async function copyBufferToFile() {
+    const filePath = "test-file.txt";
+    // bigger than max File possible buffer 16kb
+    const bufSize = 32 * 1024;
+    const xBytes = repeat("b", bufSize);
+    const reader = new Buffer(xBytes.buffer as ArrayBuffer);
+    const write = await Deno.open(filePath, { write: true, create: true });
+
+    // deno-lint-ignore no-deprecated-deno-api
+    const n = await Deno.copy(reader, write, { bufSize });
+
+    assertEquals(n, xBytes.length);
+
+    write.close();
+    await Deno.remove(filePath);
+  },
+);