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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import * as path from "@std/path/mod.ts";
import { assert } from "@std/assert/mod.ts";
import { assertCallbackErrorUncaught } from "../_test_utils.ts";
import { copyFile, copyFileSync, existsSync } from "node:fs";
const destFile = "./destination.txt";
Deno.test({
name: "[std/node/fs] copy file",
fn: async () => {
const sourceFile = Deno.makeTempFileSync();
const err = await new Promise((resolve) => {
copyFile(sourceFile, destFile, (err?: Error | null) => resolve(err));
});
assert(!err);
assert(existsSync(destFile));
Deno.removeSync(sourceFile);
Deno.removeSync(destFile);
},
});
Deno.test({
name: "[std/node/fs] copy file sync",
fn: () => {
const sourceFile = Deno.makeTempFileSync();
copyFileSync(sourceFile, destFile);
assert(existsSync(destFile));
Deno.removeSync(sourceFile);
Deno.removeSync(destFile);
},
});
Deno.test("[std/node/fs] copyFile callback isn't called twice if error is thrown", async () => {
// The correct behaviour is not to catch any errors thrown,
// but that means there'll be an uncaught error and the test will fail.
// So the only way to test this is to spawn a subprocess, and succeed if it has a non-zero exit code.
// (assertRejects won't work because there's no way to catch the error.)
const tempDir = await Deno.makeTempDir();
const tempFile1 = path.join(tempDir, "file1.txt");
const tempFile2 = path.join(tempDir, "file2.txt");
await Deno.writeTextFile(tempFile1, "hello world");
const importUrl = new URL("node:fs", import.meta.url);
await assertCallbackErrorUncaught({
prelude: `import { copyFile } from ${JSON.stringify(importUrl)}`,
invocation: `copyFile(${JSON.stringify(tempFile1)},
${JSON.stringify(tempFile2)}, `,
async cleanup() {
await Deno.remove(tempDir, { recursive: true });
},
});
});
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