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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import {  assert,  assertEquals,  assertNotEquals,  assertRejects,} from "../../testing/asserts.ts";import { writeFile } from "./promises.ts";import type { TextEncodings } from "../_utils.ts";import { isWindows } from "../../_util/os.ts";
const decoder = new TextDecoder("utf-8");
Deno.test("Invalid encoding results in error()", async function testEncodingErrors() {  await assertRejects(    async () => {      await writeFile(        "some/path",        "some data",        "made-up-encoding" as TextEncodings,      );    },    Error,    `The value "made-up-encoding" is invalid for option "encoding"`,  );  await assertRejects(    async () => {      await writeFile("some/path", "some data", {        encoding: "made-up-encoding" as TextEncodings,      });    },    Error,    `The value "made-up-encoding" is invalid for option "encoding"`,  );});
Deno.test(  "Unsupported encoding results in error()",  async function testUnsupportedEncoding() {    await assertRejects(      async () => {        await writeFile("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();    const file: Deno.FsFile = await Deno.open(tempFile, {      create: true,      write: true,      read: true,    });
    await writeFile(file.rid, "hello world");    Deno.close(file.rid);
    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 openResourcesBeforeWrite: Deno.ResourceMap = Deno.resources();
    await writeFile("_fs_writeFile_test_file.txt", "hello world");
    assertEquals(Deno.resources(), openResourcesBeforeWrite);    const data = await Deno.readFile("_fs_writeFile_test_file.txt");    await Deno.remove("_fs_writeFile_test_file.txt");    assertEquals(decoder.decode(data), "hello world");  },);
Deno.test(  "Data is written to correct file encodings",  async function testCorrectWritePromiseUsingDifferentEncodings() {    const encodings = [      ["hex", "68656c6c6f20776f726c64"],      ["HEX", "68656c6c6f20776f726c64"],      ["base64", "aGVsbG8gd29ybGQ="],      ["BASE64", "aGVsbG8gd29ybGQ="],      ["utf8", "hello world"],      ["utf-8", "hello world"],    ];
    for (const [encoding, value] of encodings) {      await writeFile(        "_fs_writeFile_test_file.txt",        value,        encoding as TextEncodings,      );
      const data = await Deno.readFile("_fs_writeFile_test_file.txt");      await Deno.remove("_fs_writeFile_test_file.txt");      assertEquals(decoder.decode(data), "hello world");    }  },);
Deno.test("Mode is correctly set", async function testCorrectFileMode() {  if (isWindows) return;  const filename = "_fs_writeFile_test_file.txt";  await writeFile(filename, "hello world", { mode: 0o777 });
  const fileInfo = await Deno.stat(filename);  await Deno.remove(filename);  assert(fileInfo && fileInfo.mode);  assertEquals(fileInfo.mode & 0o777, 0o777);});
Deno.test(  "Mode is not set when rid is passed",  async function testCorrectFileModeRid() {    if (isWindows) return;
    const filename: string = await Deno.makeTempFile();    const file: Deno.FsFile = await Deno.open(filename, {      create: true,      write: true,      read: true,    });
    await writeFile(file.rid, "hello world", { mode: 0o777 });    Deno.close(file.rid);
    const fileInfo = await Deno.stat(filename);    await Deno.remove(filename);    assert(fileInfo.mode);    assertNotEquals(fileInfo.mode & 0o777, 0o777);  },);