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import {expect} from '@esm-bundle/chai';import {fakeHash} from '../hash';import {  chunkDataKey,  chunkMetaKey,  chunkRefCountKey,  headKey,  Key,  KeyType,  parse,} from './key';
test('toString', () => {  const hashEmptyString = fakeHash('');  const hashA = fakeHash('a');  const hashAB = fakeHash('ab');  expect(chunkDataKey(hashEmptyString)).to.equal(`c/${hashEmptyString}/d`);  expect(chunkDataKey(hashA)).to.equal(`c/${hashA}/d`);  expect(chunkDataKey(hashAB)).to.equal(`c/${hashAB}/d`);  expect(chunkMetaKey(hashEmptyString)).to.equal(`c/${hashEmptyString}/m`);  expect(chunkMetaKey(hashA)).to.equal(`c/${hashA}/m`);  expect(chunkMetaKey(hashAB)).to.equal(`c/${hashAB}/m`);  expect(chunkRefCountKey(hashEmptyString)).to.equal(`c/${hashEmptyString}/r`);  expect(chunkRefCountKey(hashA)).to.equal(`c/${hashA}/r`);  expect(chunkRefCountKey(hashAB)).to.equal(`c/${hashAB}/r`);  expect(headKey('')).to.equal(`h/`);  expect(headKey('a')).to.equal(`h/a`);  expect(headKey('ab')).to.equal(`h/ab`);});
test('parse', () => {  const hashA = fakeHash('a');  const hashB = fakeHash('b');
  const t = (key: string, expected: Key) => {    expect(parse(key)).to.deep.equal(expected);  };
  t(chunkDataKey(hashA), {type: KeyType.ChunkData, hash: hashA});  t(chunkMetaKey(hashA), {type: KeyType.ChunkMeta, hash: hashA});  t(chunkRefCountKey(hashA), {type: KeyType.ChunkRefCount, hash: hashA});  t(headKey('a'), {type: KeyType.Head, name: 'a'});
  t(chunkDataKey(hashB), {type: KeyType.ChunkData, hash: hashB});  t(chunkMetaKey(hashB), {type: KeyType.ChunkMeta, hash: hashB});  t(chunkRefCountKey(hashB), {type: KeyType.ChunkRefCount, hash: hashB});  t(headKey('b'), {type: KeyType.Head, name: 'b'});
  const invalid = (key: string, message: string) => {    expect(() => parse(key))      .to.throw(Error)      .with.property('message', message);  };
  invalid('', `Invalid key: ''`);  invalid('c', `Invalid key: 'c'`);  invalid('c/', `Invalid key: 'c/'`);  invalid('c/abc', `Invalid key: 'c/abc'`);  invalid('c/abc/', `Invalid key: 'c/abc/'`);  invalid('c/abc/x', `Invalid key: 'c/abc/x'`);
  invalid('c/abc/d', `Invalid hash: 'abc'`);  invalid('c/abc/m', `Invalid hash: 'abc'`);  invalid('c/abc/r', `Invalid hash: 'abc'`);
  invalid('c//d', `Invalid hash: ''`);  invalid('c//m', `Invalid hash: ''`);  invalid('c//r', `Invalid hash: ''`);
  invalid('c/d', `Invalid key: 'c/d'`);  invalid('c/m', `Invalid key: 'c/m'`);  invalid('c/r', `Invalid key: 'c/r'`);});