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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals, assertThrows } from "@std/assert/mod.ts";
import { join } from "node:path";
import { tmpdir } from "node:os";
import {
constants,
existsSync,
mkdtempSync,
promises,
readFileSync,
writeFileSync,
} from "node:fs";
import { constants as fsPromiseConstants, cp } from "node:fs/promises";
import { pathToAbsoluteFileUrl } from "../unit/test_util.ts";
Deno.test(
"[node/fs writeFileSync] write file without option",
() => {
const data = "Hello";
const filename = mkdtempSync(join(tmpdir(), "foo-")) + "/test.txt";
writeFileSync(filename, data);
const dataRead = readFileSync(filename, "utf8");
assert(dataRead === "Hello");
},
);
Deno.test(
"[node/fs writeFileSync] write file with option ASCII",
() => {
const data = "Hello";
const filename = mkdtempSync(join(tmpdir(), "foo-")) + "/test.txt";
writeFileSync(filename, data, { encoding: "ascii" });
const dataRead = readFileSync(filename, "utf8");
assert(dataRead === "Hello");
},
);
Deno.test(
"[node/fs writeFileSync] write file throws error when encoding is not implemented",
() => {
const data = "Hello";
const filename = mkdtempSync(join(tmpdir(), "foo-")) + "/test.txt";
assertThrows(
() => writeFileSync(filename, data, { encoding: "utf16le" }),
'The value "utf16le" is invalid for option "encoding"',
);
},
);
Deno.test(
"[node/fs existsSync] path",
{ permissions: { read: true } },
() => {
assert(existsSync("tests/testdata/assets/fixture.json"));
},
);
Deno.test(
"[node/fs existsSync] url",
{ permissions: { read: true } },
() => {
assert(existsSync(
pathToAbsoluteFileUrl("tests/testdata/assets/fixture.json"),
));
},
);
Deno.test(
"[node/fs existsSync] no permission",
{ permissions: { read: false } },
() => {
assertThrows(() => {
existsSync("tests/testdata/assets/fixture.json");
}, Deno.errors.PermissionDenied);
},
);
Deno.test(
"[node/fs existsSync] not exists",
{ permissions: { read: true } },
() => {
assert(!existsSync("bad_filename"));
},
);
Deno.test(
"[node/fs/promises constants] is the same as from node:fs",
() => {
assertEquals(constants, fsPromiseConstants);
assertEquals(constants, promises.constants);
},
);
Deno.test(
"[node/fs/promises cp] copy file",
async () => {
const src = mkdtempSync(join(tmpdir(), "foo-")) + "/test.txt";
const dest = mkdtempSync(join(tmpdir(), "foo-")) + "/test.txt";
writeFileSync(src, "Hello");
await cp(src, dest);
const dataRead = readFileSync(dest, "utf8");
assert(dataRead === "Hello");
},
);
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