old_contents: import test from 'ava';
  import { FileScheme } from '../src/file-scheme';
  import { createReadStream, writeFileSync } from 'fs';
  import { join } from 'path';
  import { URL } from 'url';
  const { stat } = require('fs').promises;
  
  test('file scheme has name', t => {
    const scheme = new FileScheme();
    t.deepEqual(scheme.name, 'file');
  });
  
  test('can get', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'file-test.js');
    const content = await scheme.get(context, new URL('file://' + aFile));
    t.true(content !== undefined);
  });
  
  test('can get archive', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'fixtures', 'archive.tar#a.txt');
    const content = await scheme.get(context, new URL('file://' + aFile));
    t.true(content !== undefined);
  });
  
  test('can stat', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'file-test.js');
    const stat = await scheme.stat(context, new URL('file://' + aFile));
    t.true(stat.size > 1000 && stat.size < 10000);
  });
  
  test('can put', async t => {
    const context = undefined;
  
    const scheme = new FileScheme();
    const aFile = join(__dirname, 'file2.tmp');
    await scheme.put(
      context,
      new URL('file://' + aFile),
      createReadStream(join(__dirname, '..', 'tests', 'file-test.js'))
    );
    const stat = await scheme.stat(context, new URL('file://' + aFile));
    t.true(stat.size > 1000 && stat.size < 10000);
  });
  
  test('can delete', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, 'file.tmp');
    writeFileSync(aFile, 'someData');
  
    await scheme.delete(context, new URL('file://' + aFile));
  
    try {
      await stat(aFile);
    } catch (e) {
      t.is(e.code, 'ENOENT');
    }
  });
  
  test('can list', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aDir = join(__dirname);
    const list = await scheme.list(context, new URL('file://' + aDir));
    t.true(list.includes('file-test.js'));
  });
  
  /*
  test('can list async iterator', async t => {
  const context = undefined;
  
    const scheme = new FileScheme();
    const aDir = join(__dirname);
    const list = scheme._list(context, 'file://' + aDir);
  
    console.log(list);
  
    for await (const entry of list) {
      t.deepEqual(entry, 'bundle.js');
    }
  });
  */
  
  test('list error', async t => {
    function fn() {
      const context = undefined;
      const scheme = new FileScheme();
      return scheme.list(context, new URL('file:///unknown'));
    }
  
    const error = await t.throws(fn());
    t.is(error.message, `ENOENT: no such file or directory, scandir '/unknown'`);
  });
  
new_contents: import test from 'ava';
  import { FileScheme } from '../src/file-scheme';
  import { createReadStream, writeFileSync } from 'fs';
  import { join } from 'path';
  import { URL } from 'url';
  const { stat } = require('fs').promises;
  
  test('file scheme has name', t => {
    const scheme = new FileScheme();
    t.deepEqual(scheme.name, 'file');
  });
  
  test('can get', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'file-test.js');
    const content = await scheme.get(context, new URL('file://' + aFile));
    t.true(content !== undefined);
  });
  
  test('can get archive', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'fixtures', 'archive.tar#a.txt');
    const content = await scheme.get(context, new URL('file://' + aFile));
    t.true(content !== undefined);
  });
  
  test('can stat', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, '..', 'tests', 'file-test.js');
    const stat = await scheme.stat(context, new URL('file://' + aFile));
    t.true(stat.size > 1000 && stat.size < 10000);
  });
  
  test('can put', async t => {
    const context = undefined;
  
    const scheme = new FileScheme();
    const aFile = join(__dirname, 'file2.tmp');
    await scheme.put(
      context,
      new URL('file://' + aFile),
      createReadStream(join(__dirname, '..', 'tests', 'file-test.js'))
    );
    const stat = await scheme.stat(context, new URL('file://' + aFile));
    t.true(stat.size > 1000 && stat.size < 10000);
  });
  
  test('can delete', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aFile = join(__dirname, 'file.tmp');
    writeFileSync(aFile, 'someData');
  
    await scheme.delete(context, new URL('file://' + aFile));
  
    try {
      await stat(aFile);
    } catch (e) {
      t.is(e.code, 'ENOENT');
    }
  });
  
  test('can list', async t => {
    const context = undefined;
    const scheme = new FileScheme();
    const aDir = join(__dirname);
    const list = await scheme.list(context, new URL('file://' + aDir));
    t.true(list.includes('bundle-test.js'));
  });
  
  /*
  test('can list async iterator', async t => {
  const context = undefined;
  
    const scheme = new FileScheme();
    const aDir = join(__dirname);
    const list = scheme._list(context, 'file://' + aDir);
  
    console.log(list);
  
    for await (const entry of list) {
      t.deepEqual(entry, 'bundle.js');
    }
  });
  */
  
  test('list error', async t => {
    function fn() {
      const context = undefined;
      const scheme = new FileScheme();
      return scheme.list(context, new URL('file:///unknown'));
    }
  
    const error = await t.throws(fn());
    t.is(error.message, `ENOENT: no such file or directory, scandir '/unknown'`);
  });
  
subject: fix dir list fixture