1 files changed, 86 insertions, 0 deletions
diff --git a/tests/unit_node/_fs/_fs_close_test.ts b/tests/unit_node/_fs/_fs_close_test.ts
new file mode 100644
index 000000000..155667305
--- /dev/null
+++ b/tests/unit_node/_fs/_fs_close_test.ts
@@ -0,0 +1,86 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+import { assert, assertThrows, fail } from "@test_util/std/assert/mod.ts";
+import { assertCallbackErrorUncaught } from "../_test_utils.ts";
+import { close, closeSync } from "node:fs";
+
+Deno.test({
+  name: "ASYNC: File is closed",
+  async fn() {
+    const tempFile: string = await Deno.makeTempFile();
+    const file: Deno.FsFile = await Deno.open(tempFile);
+
+    await new Promise<void>((resolve, reject) => {
+      close(file.rid, (err) => {
+        if (err !== null) reject();
+        else resolve();
+      });
+    })
+      .catch(() => fail("No error expected"))
+      .finally(async () => {
+        await Deno.remove(tempFile);
+      });
+  },
+});
+
+Deno.test({
+  name: "ASYNC: Invalid fd",
+  fn() {
+    assertThrows(() => {
+      close(-1, (_err) => {});
+    }, RangeError);
+  },
+});
+
+Deno.test({
+  name: "close callback should be asynchronous",
+  async fn() {
+    const tempFile: string = Deno.makeTempFileSync();
+    const file: Deno.FsFile = Deno.openSync(tempFile);
+
+    let foo: string;
+    const promise = new Promise<void>((resolve) => {
+      close(file.rid, () => {
+        assert(foo === "bar");
+        resolve();
+      });
+      foo = "bar";
+    });
+
+    await promise;
+    Deno.removeSync(tempFile);
+  },
+});
+
+Deno.test({
+  name: "SYNC: File is closed",
+  fn() {
+    const tempFile: string = Deno.makeTempFileSync();
+    const file: Deno.FsFile = Deno.openSync(tempFile);
+
+    closeSync(file.rid);
+    Deno.removeSync(tempFile);
+  },
+});
+
+Deno.test({
+  name: "SYNC: Invalid fd",
+  fn() {
+    assertThrows(() => closeSync(-1));
+  },
+});
+
+Deno.test("[std/node/fs] close callback isn't called twice if error is thrown", async () => {
+  const tempFile = await Deno.makeTempFile();
+  const importUrl = new URL("node:fs", import.meta.url);
+  await assertCallbackErrorUncaught({
+    prelude: `
+    import { close } from ${JSON.stringify(importUrl)};
+
+    const file = await Deno.open(${JSON.stringify(tempFile)});
+    `,
+    invocation: "close(file.rid, ",
+    async cleanup() {
+      await Deno.remove(tempFile);
+    },
+  });
+});