1 files changed, 69 insertions, 0 deletions
diff --git a/tests/unit_node/_fs/_fs_chown_test.ts b/tests/unit_node/_fs/_fs_chown_test.ts
new file mode 100644
index 000000000..d4f6ea0e8
--- /dev/null
+++ b/tests/unit_node/_fs/_fs_chown_test.ts
@@ -0,0 +1,69 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+import { assertEquals, fail } from "@test_util/std/assert/mod.ts";
+import { assertCallbackErrorUncaught } from "../_test_utils.ts";
+import { chown, chownSync } from "node:fs";
+
+// chown is difficult to test.  Best we can do is set the existing user id/group
+// id again
+const ignore = Deno.build.os === "windows";
+
+Deno.test({
+  ignore,
+  name: "ASYNC: setting existing uid/gid works as expected (non-Windows)",
+  async fn() {
+    const tempFile: string = await Deno.makeTempFile();
+    const originalUserId: number | null = (await Deno.lstat(tempFile)).uid;
+    const originalGroupId: number | null = (await Deno.lstat(tempFile)).gid;
+    await new Promise<void>((resolve, reject) => {
+      chown(tempFile, originalUserId!, originalGroupId!, (err) => {
+        if (err) reject(err);
+        else resolve();
+      });
+    })
+      .then(() => {
+        const newUserId: number | null = Deno.lstatSync(tempFile).uid;
+        const newGroupId: number | null = Deno.lstatSync(tempFile).gid;
+        assertEquals(newUserId, originalUserId);
+        assertEquals(newGroupId, originalGroupId);
+      }, () => {
+        fail();
+      })
+      .finally(() => {
+        Deno.removeSync(tempFile);
+      });
+  },
+});
+
+Deno.test({
+  ignore,
+  name: "SYNC: setting existing uid/gid works as expected (non-Windows)",
+  fn() {
+    const tempFile: string = Deno.makeTempFileSync();
+    const originalUserId: number | null = Deno.lstatSync(tempFile).uid;
+    const originalGroupId: number | null = Deno.lstatSync(tempFile).gid;
+    chownSync(tempFile, originalUserId!, originalGroupId!);
+
+    const newUserId: number | null = Deno.lstatSync(tempFile).uid;
+    const newGroupId: number | null = Deno.lstatSync(tempFile).gid;
+    assertEquals(newUserId, originalUserId);
+    assertEquals(newGroupId, originalGroupId);
+    Deno.removeSync(tempFile);
+  },
+});
+
+Deno.test({
+  name: "[std/node/fs] chown callback isn't called twice if error is thrown",
+  ignore: Deno.build.os === "windows",
+  async fn() {
+    const tempFile = await Deno.makeTempFile();
+    const { uid, gid } = await Deno.lstat(tempFile);
+    const importUrl = new URL("node:fs", import.meta.url);
+    await assertCallbackErrorUncaught({
+      prelude: `import { chown } from ${JSON.stringify(importUrl)}`,
+      invocation: `chown(${JSON.stringify(tempFile)}, ${uid}, ${gid}, `,
+      async cleanup() {
+        await Deno.remove(tempFile);
+      },
+    });
+  },
+});