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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { test } from "../testing/mod.ts";
import { assertThrows, assertThrowsAsync } from "../testing/asserts.ts";
import { ensureDir, ensureDirSync } from "./ensure_dir.ts";
import * as path from "./path/mod.ts";
import { ensureFile, ensureFileSync } from "./ensure_file.ts";

const testdataDir = path.resolve("fs", "testdata");

test(async function ensureDirIfItNotExist(): Promise<void> {
  const baseDir = path.join(testdataDir, "ensure_dir_not_exist");
  const testDir = path.join(baseDir, "test");

  await ensureDir(testDir);

  await assertThrowsAsync(
    async (): Promise<void> => {
      await Deno.stat(testDir).then(
        (): void => {
          throw new Error("test dir should exists.");
        }
      );
    }
  );

  await Deno.remove(baseDir, { recursive: true });
});

test(function ensureDirSyncIfItNotExist(): void {
  const baseDir = path.join(testdataDir, "ensure_dir_sync_not_exist");
  const testDir = path.join(baseDir, "test");

  ensureDirSync(testDir);

  Deno.statSync(testDir);

  Deno.removeSync(baseDir, { recursive: true });
});

test(async function ensureDirIfItExist(): Promise<void> {
  const baseDir = path.join(testdataDir, "ensure_dir_exist");
  const testDir = path.join(baseDir, "test");

  // create test directory
  await Deno.mkdir(testDir, true);

  await ensureDir(testDir);

  await assertThrowsAsync(
    async (): Promise<void> => {
      await Deno.stat(testDir).then(
        (): void => {
          throw new Error("test dir should still exists.");
        }
      );
    }
  );

  await Deno.remove(baseDir, { recursive: true });
});

test(function ensureDirSyncIfItExist(): void {
  const baseDir = path.join(testdataDir, "ensure_dir_sync_exist");
  const testDir = path.join(baseDir, "test");

  // create test directory
  Deno.mkdirSync(testDir, true);

  ensureDirSync(testDir);

  assertThrows(
    (): void => {
      Deno.statSync(testDir);
      throw new Error("test dir should still exists.");
    }
  );

  Deno.removeSync(baseDir, { recursive: true });
});

test(async function ensureDirIfItAsFile(): Promise<void> {
  const baseDir = path.join(testdataDir, "ensure_dir_exist_file");
  const testFile = path.join(baseDir, "test");

  await ensureFile(testFile);

  await assertThrowsAsync(
    async (): Promise<void> => {
      await ensureDir(testFile);
    },
    Error,
    `Ensure path exists, expected 'dir', got 'file'`
  );

  await Deno.remove(baseDir, { recursive: true });
});

test(function ensureDirSyncIfItAsFile(): void {
  const baseDir = path.join(testdataDir, "ensure_dir_exist_file_async");
  const testFile = path.join(baseDir, "test");

  ensureFileSync(testFile);

  assertThrows(
    (): void => {
      ensureDirSync(testFile);
    },
    Error,
    `Ensure path exists, expected 'dir', got 'file'`
  );

  Deno.removeSync(baseDir, { recursive: true });
});