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-rw-r--r--tests/unit_node/stream_test.ts25
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/unit_node/stream_test.ts b/tests/unit_node/stream_test.ts
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+++ b/tests/unit_node/stream_test.ts
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+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+import { assert } from "@test_util/std/assert/mod.ts";
+import { fromFileUrl, relative } from "@test_util/std/path/mod.ts";
+import { pipeline } from "node:stream/promises";
+import { createReadStream, createWriteStream } from "node:fs";
+
+Deno.test("stream/promises pipeline", async () => {
+ const filePath = relative(
+ Deno.cwd(),
+ fromFileUrl(new URL("./testdata/lorem_ipsum.txt", import.meta.url)),
+ );
+ const input = createReadStream(filePath);
+ const output = createWriteStream("lorem_ipsum.txt.copy");
+
+ await pipeline(input, output);
+
+ const content = Deno.readTextFileSync("lorem_ipsum.txt.copy");
+ assert(content.startsWith("Lorem ipsum dolor sit amet"));
+ try {
+ Deno.removeSync("lorem_ipsum.txt.copy");
+ } catch {
+ // pass
+ }
+});