Function createMockFs

packages/utils/src/lib/wizard/virtual-fs.unit.test.ts:11–48

(
  files: Record<string, string> = {},
  options: { failOnWrite?: string } = {},
)

};

function createMockFs(
  files: Record<string, string> = {},
  options: { failOnWrite?: string } = {},
): MockFs {
  const store = new Map(Object.entries(files));
  const written = new Map<string, string>();
  const unlinked = new Set<string>();
  const dirs = new Set<string>();
  return {
    written,
    unlinked,
    dirs,
    async readFile(path: string) {
      const content = store.get(toUnixPath(path));
      if (content == null) {
        throw new Error(`ENOENT: no such file or directory, open '${path}'`);
      }
      return content;
    },
    async writeFile(path: string, content: string) {
      if (options.failOnWrite === toUnixPath(path)) {
        throw new Error(`EACCES: permission denied, open '${path}'`);
      }
      store.set(toUnixPath(path), content);
      written.set(toUnixPath(path), content);
    },
    async exists(path: string) {
      return store.has(toUnixPath(path));
    },
    async mkdir(path: string): Promise<undefined> {
      dirs.add(toUnixPath(path));
    },
    async unlink(path: string) {
      store.delete(toUnixPath(path));
      unlinked.add(toUnixPath(path));
    },
  };
}

describe('createTree', () => {
  it('should report the root directory', () => {