test(ext/node): port _fs tests from std/node (#18262)

Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/cli/tests/unit_node/_fs/_fs_unlink_test.ts b/cli/tests/unit_node/_fs/_fs_unlink_test.ts
new file mode 100644
index 000000000..a33534fbb
--- /dev/null
+++ b/cli/tests/unit_node/_fs/_fs_unlink_test.ts
@@ -0,0 +1,43 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import {
+  assertEquals,
+  fail,
+} from "../../../../test_util/std/testing/asserts.ts";
+import { existsSync } from "node:fs";
+import { assertCallbackErrorUncaught } from "../_test_utils.ts";
+import { unlink, unlinkSync } from "node:fs";
+
+Deno.test({
+  name: "ASYNC: deleting a file",
+  async fn() {
+    const file = Deno.makeTempFileSync();
+    await new Promise<void>((resolve, reject) => {
+      unlink(file, (err) => {
+        if (err) reject(err);
+        resolve();
+      });
+    })
+      .then(() => assertEquals(existsSync(file), false), () => fail())
+      .finally(() => {
+        if (existsSync(file)) Deno.removeSync(file);
+      });
+  },
+});
+
+Deno.test({
+  name: "SYNC: Test deleting a file",
+  fn() {
+    const file = Deno.makeTempFileSync();
+    unlinkSync(file);
+    assertEquals(existsSync(file), false);
+  },
+});
+
+Deno.test("[std/node/fs] unlink 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 { unlink } from ${JSON.stringify(importUrl)}`,
+    invocation: `unlink(${JSON.stringify(tempFile)}, `,
+  });
+});