deno/cli/tests/unit/symlink_test.ts

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { unitTest, assert, assertEquals } from "./test_util.ts";

unitTest(
  { perms: { read: true, write: true } },
  function symlinkSyncSuccess(): void {
    const testDir = Deno.makeTempDirSync();
    const oldname = testDir + "/oldname";
    const newname = testDir + "/newname";
    Deno.mkdirSync(oldname);
    // Just for now, until we implement symlink for Windows.
    Deno.symlinkSync(oldname, newname);
    const newNameInfoLStat = Deno.lstatSync(newname);
    const newNameInfoStat = Deno.statSync(newname);
    assert(newNameInfoLStat.isSymlink);
    assert(newNameInfoStat.isDirectory);
  }
);

unitTest(function symlinkSyncPerm(): void {
  let err;
  try {
    Deno.symlinkSync("oldbaddir", "newbaddir");
  } catch (e) {
    err = e;
  }
  assert(err instanceof Deno.errors.PermissionDenied);
  assertEquals(err.name, "PermissionDenied");
});

unitTest(
  { perms: { read: true, write: true } },
  async function symlinkSuccess(): Promise<void> {
    const testDir = Deno.makeTempDirSync();
    const oldname = testDir + "/oldname";
    const newname = testDir + "/newname";
    Deno.mkdirSync(oldname);
    await Deno.symlink(oldname, newname);
    const newNameInfoLStat = Deno.lstatSync(newname);
    const newNameInfoStat = Deno.statSync(newname);
    assert(newNameInfoLStat.isSymlink, "NOT SYMLINK");
    assert(newNameInfoStat.isDirectory, "NOT DIRECTORY");
  }
);