1 files changed, 121 insertions, 0 deletions
diff --git a/tests/unit_node/_fs/_fs_chmod_test.ts b/tests/unit_node/_fs/_fs_chmod_test.ts
new file mode 100644
index 000000000..2bddcb293
--- /dev/null
+++ b/tests/unit_node/_fs/_fs_chmod_test.ts
@@ -0,0 +1,121 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+import {
+  assert,
+  assertRejects,
+  assertThrows,
+  fail,
+} from "@test_util/std/assert/mod.ts";
+import { assertCallbackErrorUncaught } from "../_test_utils.ts";
+import { chmod, chmodSync } from "node:fs";
+
+Deno.test({
+  name: "ASYNC: Permissions are changed (non-Windows)",
+  ignore: Deno.build.os === "windows",
+  async fn() {
+    const tempFile: string = await Deno.makeTempFile();
+    const originalFileMode: number | null = (await Deno.lstat(tempFile)).mode;
+    await new Promise<void>((resolve, reject) => {
+      chmod(tempFile, 0o777, (err) => {
+        if (err) reject(err);
+        else resolve();
+      });
+    })
+      .then(() => {
+        const newFileMode: number | null = Deno.lstatSync(tempFile).mode;
+        assert(newFileMode && originalFileMode);
+        assert(newFileMode === 33279 && newFileMode > originalFileMode);
+      }, (error) => {
+        fail(error);
+      })
+      .finally(() => {
+        Deno.removeSync(tempFile);
+      });
+  },
+});
+
+Deno.test({
+  name: "ASYNC: don't throw NotSupportedError (Windows)",
+  ignore: Deno.build.os !== "windows",
+  async fn() {
+    const tempFile: string = await Deno.makeTempFile();
+    await new Promise<void>((resolve, reject) => {
+      chmod(tempFile, 0o777, (err) => {
+        if (err) reject(err);
+        else resolve();
+      });
+    }).finally(() => {
+      Deno.removeSync(tempFile);
+    });
+  },
+});
+
+Deno.test({
+  name: "ASYNC: don't swallow NotFoundError (Windows)",
+  ignore: Deno.build.os !== "windows",
+  async fn() {
+    await assertRejects(async () => {
+      await new Promise<void>((resolve, reject) => {
+        chmod("./__non_existent_file__", 0o777, (err) => {
+          if (err) reject(err);
+          else resolve();
+        });
+      });
+    });
+  },
+});
+
+Deno.test({
+  name: "SYNC: Permissions are changed (non-Windows)",
+  ignore: Deno.build.os === "windows",
+  fn() {
+    const tempFile: string = Deno.makeTempFileSync();
+    try {
+      const originalFileMode: number | null = Deno.lstatSync(tempFile).mode;
+      chmodSync(tempFile, "777");
+
+      const newFileMode: number | null = Deno.lstatSync(tempFile).mode;
+      assert(newFileMode && originalFileMode);
+      assert(newFileMode === 33279 && newFileMode > originalFileMode);
+    } finally {
+      Deno.removeSync(tempFile);
+    }
+  },
+});
+
+Deno.test({
+  name: "SYNC: don't throw NotSupportedError (Windows)",
+  ignore: Deno.build.os !== "windows",
+  fn() {
+    const tempFile: string = Deno.makeTempFileSync();
+    try {
+      chmodSync(tempFile, "777");
+    } finally {
+      Deno.removeSync(tempFile);
+    }
+  },
+});
+
+Deno.test({
+  name: "SYNC: don't swallow NotFoundError (Windows)",
+  ignore: Deno.build.os !== "windows",
+  fn() {
+    assertThrows(() => {
+      chmodSync("./__non_existent_file__", "777");
+    });
+  },
+});
+
+Deno.test({
+  name: "[std/node/fs] chmod callback isn't called twice if error is thrown",
+  async fn() {
+    const tempFile = await Deno.makeTempFile();
+    const importUrl = new URL("node:fs", import.meta.url);
+    await assertCallbackErrorUncaught({
+      prelude: `import { chmod } from ${JSON.stringify(importUrl)}`,
+      invocation: `chmod(${JSON.stringify(tempFile)}, 0o777, `,
+      async cleanup() {
+        await Deno.remove(tempFile);
+      },
+    });
+  },
+});