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denoland-deno/tests/unit_node/_fs/_fs_writeFile_test.ts
2024-07-25 15:30:28 +10:00

345 lines
9.2 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertNotEquals,
assertRejects,
assertThrows,
} from "@std/assert";
import { writeFile, writeFileSync } from "node:fs";
import * as path from "@std/path";
type TextEncodings =
| "ascii"
| "utf8"
| "utf-8"
| "utf16le"
| "ucs2"
| "ucs-2"
| "base64"
| "latin1"
| "hex";
const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));
const testDataDir = path.resolve(moduleDir, "testdata");
const decoder = new TextDecoder("utf-8");
Deno.test("Callback must be a function error", function fn() {
assertThrows(
() => {
// @ts-expect-error Type '"made-up-encoding"' is not assignable to type
writeFile("some/path", "some data", "utf8");
},
TypeError,
"Callback must be a function.",
);
});
Deno.test("Invalid encoding results in error()", function testEncodingErrors() {
assertThrows(
() => {
// @ts-expect-error Type '"made-up-encoding"' is not assignable to type
writeFile("some/path", "some data", "made-up-encoding", () => {});
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`,
);
assertThrows(
() => {
// @ts-expect-error Type '"made-up-encoding"' is not assignable to type
writeFileSync("some/path", "some data", "made-up-encoding");
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`,
);
assertThrows(
() => {
writeFile(
"some/path",
"some data",
{
// @ts-expect-error Type '"made-up-encoding"' is not assignable to type
encoding: "made-up-encoding",
},
() => {},
);
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`,
);
assertThrows(
() => {
writeFileSync("some/path", "some data", {
// @ts-expect-error Type '"made-up-encoding"' is not assignable to type
encoding: "made-up-encoding",
});
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`,
);
});
Deno.test(
"Unsupported encoding results in error()",
function testUnsupportedEncoding() {
assertThrows(
() => {
writeFile("some/path", "some data", "utf16le", () => {});
},
Error,
`Not implemented: "utf16le" encoding`,
);
assertThrows(
() => {
writeFileSync("some/path", "some data", "utf16le");
},
Error,
`Not implemented: "utf16le" encoding`,
);
},
);
Deno.test(
"Data is written to correct rid",
async function testCorrectWriteUsingRid() {
const tempFile: string = await Deno.makeTempFile();
using file = await Deno.open(tempFile, {
create: true,
write: true,
read: true,
});
await new Promise<void>((resolve, reject) => {
writeFile(file.rid, "hello world", (err) => {
if (err) return reject(err);
resolve();
});
});
const data = await Deno.readFile(tempFile);
await Deno.remove(tempFile);
assertEquals(decoder.decode(data), "hello world");
},
);
Deno.test(
"Data is written to correct file",
async function testCorrectWriteUsingPath() {
const res = await new Promise((resolve) => {
writeFile("_fs_writeFile_test_file.txt", "hello world", resolve);
});
const data = await Deno.readFile("_fs_writeFile_test_file.txt");
await Deno.remove("_fs_writeFile_test_file.txt");
assertEquals(res, null);
assertEquals(decoder.decode(data), "hello world");
},
);
Deno.test(
"Data is written to correct file encodings",
async function testCorrectWriteUsingDifferentEncodings() {
const encodings = [
["hex", "68656c6c6f20776f726c64"],
["HEX", "68656c6c6f20776f726c64"],
["base64", "aGVsbG8gd29ybGQ="],
["BASE64", "aGVsbG8gd29ybGQ="],
["utf8", "hello world"],
["utf-8", "hello world"],
];
for (const [encoding, value] of encodings) {
const res = await new Promise((resolve) => {
writeFile(
"_fs_writeFile_test_file.txt",
value,
encoding as TextEncodings,
resolve,
);
});
const data = await Deno.readFile("_fs_writeFile_test_file.txt");
await Deno.remove("_fs_writeFile_test_file.txt");
assertEquals(res, null);
assertEquals(decoder.decode(data), "hello world");
}
},
);
Deno.test("Path can be an URL", async function testCorrectWriteUsingURL() {
const url = new URL(
Deno.build.os === "windows"
? "file:///" +
path
.join(testDataDir, "_fs_writeFile_test_file_url.txt")
.replace(/\\/g, "/")
: "file://" + path.join(testDataDir, "_fs_writeFile_test_file_url.txt"),
);
const filePath = path.fromFileUrl(url);
const res = await new Promise((resolve) => {
writeFile(url, "hello world", resolve);
});
assert(res === null);
const data = await Deno.readFile(filePath);
await Deno.remove(filePath);
assertEquals(res, null);
assertEquals(decoder.decode(data), "hello world");
});
Deno.test("Mode is correctly set", async function testCorrectFileMode() {
if (Deno.build.os === "windows") return;
const filename = "_fs_writeFile_test_file.txt";
const res = await new Promise((resolve) => {
writeFile(filename, "hello world", { mode: 0o777 }, resolve);
});
const fileInfo = await Deno.stat(filename);
await Deno.remove(filename);
assertEquals(res, null);
assert(fileInfo && fileInfo.mode);
assertEquals(fileInfo.mode & 0o777, 0o777);
});
Deno.test(
"Mode is not set when rid is passed",
async function testCorrectFileModeRid() {
if (Deno.build.os === "windows") return;
const filename: string = await Deno.makeTempFile();
using file = await Deno.open(filename, {
create: true,
write: true,
read: true,
});
await new Promise<void>((resolve, reject) => {
writeFile(file.rid, "hello world", { mode: 0o777 }, (err) => {
if (err) return reject(err);
resolve();
});
});
const fileInfo = await Deno.stat(filename);
await Deno.remove(filename);
assert(fileInfo.mode);
assertNotEquals(fileInfo.mode & 0o777, 0o777);
},
);
Deno.test(
"Is cancellable with an AbortSignal",
async function testIsCancellableWithAbortSignal() {
const tempFile: string = await Deno.makeTempFile();
const controller = new AbortController();
// The "as any" is necessary due to https://github.com/denoland/deno/issues/19527
// deno-lint-ignore no-explicit-any
const signal = controller.signal as any;
const writeFilePromise = new Promise<void>((resolve, reject) => {
writeFile(tempFile, "hello world", { signal }, (err) => {
if (err) return reject(err);
resolve();
});
});
controller.abort();
await assertRejects(
() => writeFilePromise,
"AbortError",
);
Deno.removeSync(tempFile);
},
);
Deno.test(
"Data is written synchronously to correct rid",
function testCorrectWriteSyncUsingRid() {
const tempFile: string = Deno.makeTempFileSync();
using file = Deno.openSync(tempFile, {
create: true,
write: true,
read: true,
});
writeFileSync(file.rid, "hello world");
const data = Deno.readFileSync(tempFile);
Deno.removeSync(tempFile);
assertEquals(decoder.decode(data), "hello world");
},
);
Deno.test(
"Data is written to correct file encodings",
function testCorrectWriteSyncUsingDifferentEncodings() {
const encodings = [
["hex", "68656c6c6f20776f726c64"],
["HEX", "68656c6c6f20776f726c64"],
["base64", "aGVsbG8gd29ybGQ="],
["BASE64", "aGVsbG8gd29ybGQ="],
["utf8", "hello world"],
["utf-8", "hello world"],
];
for (const [encoding, value] of encodings) {
const file = "_fs_writeFileSync_test_file";
writeFileSync(file, value, encoding as TextEncodings);
const data = Deno.readFileSync(file);
Deno.removeSync(file);
assertEquals(decoder.decode(data), "hello world");
}
},
);
Deno.test(
"Data is written synchronously to correct file",
function testCorrectWriteSyncUsingPath() {
const file = "_fs_writeFileSync_test_file";
writeFileSync(file, "hello world");
const data = Deno.readFileSync(file);
Deno.removeSync(file);
assertEquals(decoder.decode(data), "hello world");
},
);
Deno.test("sync: Path can be an URL", function testCorrectWriteSyncUsingURL() {
const filePath = path.join(
testDataDir,
"_fs_writeFileSync_test_file_url.txt",
);
const url = new URL(
Deno.build.os === "windows"
? "file:///" + filePath.replace(/\\/g, "/")
: "file://" + filePath,
);
writeFileSync(url, "hello world");
const data = Deno.readFileSync(filePath);
Deno.removeSync(filePath);
assertEquals(decoder.decode(data), "hello world");
});
Deno.test(
"Mode is correctly set when writing synchronously",
function testCorrectFileModeSync() {
if (Deno.build.os === "windows") return;
const filename = "_fs_writeFileSync_test_file.txt";
writeFileSync(filename, "hello world", { mode: 0o777 });
const fileInfo = Deno.statSync(filename);
Deno.removeSync(filename);
assert(fileInfo && fileInfo.mode);
assertEquals(fileInfo.mode & 0o777, 0o777);
},
);