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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
const { test } = Deno;
import {
assert,
assertEquals,
assertNotEquals,
assertThrows,
assertThrowsAsync,
} from "../../testing/asserts.ts";
import { writeFile } from "./_fs_writeFile.ts";
const decoder = new TextDecoder("utf-8");
test("Invalid encoding results in error()", function fn() {
assertThrows(
() => {
writeFile("some/path", "some data", "utf8");
},
TypeError,
"Callback must be a function."
);
});
test("Invalid encoding results in error()", function testEncodingErrors() {
assertThrows(
() => {
writeFile("some/path", "some data", "made-up-encoding", () => {});
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`
);
assertThrows(
() => {
writeFile(
"some/path",
"some data",
{
encoding: "made-up-encoding",
},
() => {}
);
},
Error,
`The value "made-up-encoding" is invalid for option "encoding"`
);
});
test("Unsupported encoding results in error()", function testUnsupportedEncoding() {
assertThrows(
() => {
writeFile("some/path", "some data", "hex", () => {});
},
Error,
`Not implemented: "hex" encoding`
);
assertThrows(
() => {
writeFile(
"some/path",
"some data",
{
encoding: "base64",
},
() => {}
);
},
Error,
`Not implemented: "base64" encoding`
);
});
test("Data is written to correct rid", async function testCorrectWriteUsingRid() {
const tempFile: string = await Deno.makeTempFile();
const file: Deno.File = await Deno.open(tempFile, {
create: true,
write: true,
read: true,
});
await new Promise((resolve, reject) => {
writeFile(file.rid, "hello world", (err) => {
if (err) return reject(err);
resolve();
});
});
Deno.close(file.rid);
const data = await Deno.readFile(tempFile);
await Deno.remove(tempFile);
assertEquals(decoder.decode(data), "hello world");
});
test("Data is written to correct rid", async function testCorrectWriteUsingRid() {
const tempFile: string = await Deno.makeTempFile();
const file: Deno.File = await Deno.open(tempFile, {
create: true,
write: true,
read: true,
});
await new Promise((resolve, reject) => {
writeFile(file.rid, "hello world", (err) => {
if (err) return reject(err);
resolve();
});
});
Deno.close(file.rid);
const data = await Deno.readFile(tempFile);
await Deno.remove(tempFile);
assertEquals(decoder.decode(data), "hello world");
});
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");
});
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);
});
test("Mode is not set when rid is passed", async function testCorrectFileModeRid() {
if (Deno.build.os === "windows") return;
const filename: string = await Deno.makeTempFile();
const file: Deno.File = await Deno.open(filename, {
create: true,
write: true,
read: true,
});
await new Promise((resolve, reject) => {
writeFile(file.rid, "hello world", { mode: 0o777 }, (err) => {
if (err) return reject(err);
resolve();
});
});
Deno.close(file.rid);
const fileInfo = await Deno.stat(filename);
await Deno.remove(filename);
assert(fileInfo.mode);
assertNotEquals(fileInfo.mode & 0o777, 0o777);
});
test("Mode is not implemented on windows", function testModeNotImplementedWindows(): void {
if (Deno.build.os !== "windows") return;
assertThrowsAsync(
() => {
return new Promise((resolve, reject) => {
writeFile("fail.txt", "some data", { mode: 0o777 }, (err) => {
if (err) return reject(err);
resolve();
});
});
},
Error,
`Not implemented: "mode" on Windows`
);
});
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