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import {LogContext} from '@rocicorp/logger';import {expect} from '@esm-bundle/chai';import * as dag from '../dag/mod';import {DEFAULT_HEAD_NAME} from './commit';import {fromWhence, whenceHead} from './read';import {initDB, Write} from './write';
test('basics', async () => {  const ds = new dag.TestStore();  const lc = new LogContext();  await initDB(await ds.write(), DEFAULT_HEAD_NAME);  const w = await Write.newLocal(    whenceHead(DEFAULT_HEAD_NAME),    'mutator_name',    JSON.stringify([]),    null,    await ds.write(),    42,  );  await w.put(lc, 'foo', 'bar');  await w.commit(DEFAULT_HEAD_NAME);
  const dr = await ds.read();  const r = await fromWhence(whenceHead(DEFAULT_HEAD_NAME), dr);  const val = await r.get('foo');  expect(val).to.deep.equal('bar');});