Method AddColumn

src/observer/test/scanner_test.cc:83–83

  virtual std::string Value() { return value_[seq_]; }
  virtual int64_t Timestamp() { return 9999999; }
  virtual void AddColumn(const std::string& family, const std::string& qualifier) {}
  virtual bool Done() { return seq_ >= value_.size(); }
  virtual void Next() {
    if (seq_ < value_.size()) {