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denoland-deno/tests/unit_node/_fs/_fs_write_test.ts
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369)
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

51 lines
1.5 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { write, writeSync } from "node:fs";
import { assertEquals } from "@test_util/std/assert/mod.ts";
import { Buffer } from "node:buffer";
const decoder = new TextDecoder("utf-8");
Deno.test({
name: "Data is written to the file with the correct length",
async fn() {
const tempFile: string = await Deno.makeTempFile();
using file = await Deno.open(tempFile, {
create: true,
write: true,
read: true,
});
const buffer = Buffer.from("hello world");
const bytesWrite = await new Promise((resolve, reject) => {
write(file.rid, buffer, 0, 5, (err: unknown, nwritten: number) => {
if (err) return reject(err);
resolve(nwritten);
});
});
const data = await Deno.readFile(tempFile);
await Deno.remove(tempFile);
assertEquals(bytesWrite, 5);
assertEquals(decoder.decode(data), "hello");
},
});
Deno.test({
name: "Data is written synchronously to the file with the correct length",
fn() {
const tempFile: string = Deno.makeTempFileSync();
using file = Deno.openSync(tempFile, {
create: true,
write: true,
read: true,
});
const buffer = Buffer.from("hello world");
const bytesWrite = writeSync(file.rid, buffer, 0, 5);
const data = Deno.readFileSync(tempFile);
Deno.removeSync(tempFile);
assertEquals(bytesWrite, 5);
assertEquals(decoder.decode(data), "hello");
},
});