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Diffstat (limited to 'tests/unit_node/_fs/_fs_watch_test.ts')
-rw-r--r-- | tests/unit_node/_fs/_fs_watch_test.ts | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/unit_node/_fs/_fs_watch_test.ts b/tests/unit_node/_fs/_fs_watch_test.ts new file mode 100644 index 000000000..ffa6cac45 --- /dev/null +++ b/tests/unit_node/_fs/_fs_watch_test.ts @@ -0,0 +1,27 @@ +// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license. +import { watch } from "node:fs"; +import { assertEquals } from "@test_util/std/assert/mod.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 | null]> = []; + 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); + }, +}); |