Reporter tests: reuse csv header.

test/output_test_helper.cc

@@ -39,6 +39,9 @@ SubMap& GetSubstitutions() {
       {"%time", "[ ]*[0-9]{1,5} ns"},
       {"%console_report", "[ ]*[0-9]{1,5} ns [ ]*[0-9]{1,5} ns [ ]*[0-9]+"},
       {"%console_us_report", "[ ]*[0-9] us [ ]*[0-9] us [ ]*[0-9]+"},
+      {"%csv_header",
+       "name,iterations,real_time,cpu_time,time_unit,bytes_per_second,"
+       "items_per_second,label,error_occurred,error_message"},
       {"%csv_report", "[0-9]+," + safe_dec_re + "," + safe_dec_re + ",ns,,,,,"},
       {"%csv_us_report", "[0-9]+," + safe_dec_re + "," + safe_dec_re + ",us,,,,,"},
       {"%csv_bytes_report",

test/reporter_output_test.cc

@@ -13,9 +13,7 @@ ADD_CASES(TC_ConsoleOut,
           {{"^[-]+$", MR_Next},
            {"^Benchmark %s Time %s CPU %s Iterations$", MR_Next},
            {"^[-]+$", MR_Next}});
-ADD_CASES(TC_CSVOut,
-          {{"name,iterations,real_time,cpu_time,time_unit,bytes_per_second,"
-            "items_per_second,label,error_occurred,error_message"}});
+ADD_CASES(TC_CSVOut, {{"%csv_header"}});
 
 // ========================================================================= //
 // ------------------------ Testing Basic Output --------------------------- //