68 inline std::ostream& operator<<(std::ostream& os, const std::map<U, V>& param) {
69   os << "{";
73       os << ", ";
74     os << pair.first << ":" << pair.second;
77   return os << "}";
81 inline void VectorToStream(std::ostream& os, const V& param) {  in VectorToStream()  argument
82   os << "[";  in VectorToStream()
86       os << ", ";  in VectorToStream()
87     os << e;  in VectorToStream()
90   os << "]";  in VectorToStream()
93 inline std::ostream& operator<<(std::ostream& os, const PartitionUpdate& p) {
94   return os << "{" << p.partition_name() << ", "
98 inline std::ostream& operator<<(std::ostream& os,
100   os << "{" << g.name() << ", " << g.size() << ", ";
101   VectorToStream(os, g.partition_names());
102   return os << "}";
105 inline std::ostream& operator<<(std::ostream& os,
107   os << "{.groups = ";
108   VectorToStream(os, m.dynamic_partition_metadata().groups());
109   os << ", .partitions = ";
110   VectorToStream(os, m.partitions());
111   return os;
248   void DescribeTo(std::ostream* os) const override {  in DescribeTo()  argument
249     *os << "expect: " << manifest_;  in DescribeTo()
252   void DescribeNegationTo(std::ostream* os) const override {  in DescribeNegationTo()  argument
253     *os << "expect not: " << manifest_;  in DescribeNegationTo()
279 inline std::ostream& operator<<(std::ostream& os, const TestParam& param) {
280   return os << "{source: " << param.source << ", target:" << param.target