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authorSanskar Gauchan <62867497+Sanskar531@users.noreply.github.com>2023-03-19 21:37:00 +1100
committerGitHub <noreply@github.com>2023-03-19 19:37:00 +0900
commit472c06b92ebec396559a494502c9438678a49cac (patch)
treea41372910ba7be037a62e2f8058867b51a7ec531 /cli/tests/unit_node/_fs/_fs_watch_test.ts
parent84fedabab3cc86a025f9885f0a057cfd06b31f92 (diff)
test(ext/node): add _fs_access_test.ts and _fs_watch_test.ts (#18249)
part of https://github.com/denoland/deno/issues/17840
Diffstat (limited to 'cli/tests/unit_node/_fs/_fs_watch_test.ts')
-rw-r--r--cli/tests/unit_node/_fs/_fs_watch_test.ts27
1 files changed, 27 insertions, 0 deletions
diff --git a/cli/tests/unit_node/_fs/_fs_watch_test.ts b/cli/tests/unit_node/_fs/_fs_watch_test.ts
new file mode 100644
index 000000000..2316b2db3
--- /dev/null
+++ b/cli/tests/unit_node/_fs/_fs_watch_test.ts
@@ -0,0 +1,27 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import { watch } from "node:fs";
+import { assertEquals } from "../../../../test_util/std/testing/asserts.ts";
+
+function wait(time: number) {
+ return new Promise((resolve) => {
+ setTimeout(resolve, time);
+ });
+}
+
+Deno.test({
+ name: "watching a file",
+ async fn() {
+ const file = Deno.makeTempFileSync();
+ const result: Array<[string, string]> = [];
+ const watcher = watch(
+ file,
+ (eventType, filename) => result.push([eventType, filename]),
+ );
+ await wait(100);
+ Deno.writeTextFileSync(file, "something");
+ await wait(100);
+ watcher.close();
+ await wait(100);
+ assertEquals(result.length >= 1, true);
+ },
+});