75   std::pair<std::string, std::string> pair;  in TEST()  local
77   pair = string_utils::SplitAtFirst(" 123 : 4 : 56 : 789 ", ":", true);  in TEST()
78   EXPECT_EQ("123", pair.first);  in TEST()
79   EXPECT_EQ("4 : 56 : 789", pair.second);  in TEST()
81   pair = string_utils::SplitAtFirst(" 123 : 4 : 56 : 789 ", ":", false);  in TEST()
82   EXPECT_EQ(" 123 ", pair.first);  in TEST()
83   EXPECT_EQ(" 4 : 56 : 789 ", pair.second);  in TEST()
85   pair = string_utils::SplitAtFirst("", "=");  in TEST()
86   EXPECT_EQ("", pair.first);  in TEST()
87   EXPECT_EQ("", pair.second);  in TEST()
89   pair = string_utils::SplitAtFirst("=", "=");  in TEST()
90   EXPECT_EQ("", pair.first);  in TEST()
91   EXPECT_EQ("", pair.second);  in TEST()
93   pair = string_utils::SplitAtFirst("a=", "=");  in TEST()
94   EXPECT_EQ("a", pair.first);  in TEST()
95   EXPECT_EQ("", pair.second);  in TEST()
97   pair = string_utils::SplitAtFirst("abc=", "=");  in TEST()
98   EXPECT_EQ("abc", pair.first);  in TEST()
99   EXPECT_EQ("", pair.second);  in TEST()
101   pair = string_utils::SplitAtFirst("=a", "=");  in TEST()
102   EXPECT_EQ("", pair.first);  in TEST()
103   EXPECT_EQ("a", pair.second);  in TEST()
105   pair = string_utils::SplitAtFirst("=abc=", "=");  in TEST()
106   EXPECT_EQ("", pair.first);  in TEST()
107   EXPECT_EQ("abc=", pair.second);  in TEST()
109   pair = string_utils::SplitAtFirst("abc", "=");  in TEST()
110   EXPECT_EQ("abc", pair.first);  in TEST()
111   EXPECT_EQ("", pair.second);  in TEST()
113   pair = string_utils::SplitAtFirst("abc:=xyz", ":=");  in TEST()
114   EXPECT_EQ("abc", pair.first);  in TEST()
115   EXPECT_EQ("xyz", pair.second);  in TEST()
117   pair = string_utils::SplitAtFirst("abc", "");  in TEST()
118   EXPECT_EQ("", pair.first);  in TEST()
119   EXPECT_EQ("abc", pair.second);  in TEST()