pairs of name (string) and value
1 import std.regex : ctRegex, matchFirst; 2 import std.stdio : File, stderr; 3 4 auto origStderr = stderr; 5 stderr = File.tmpfile(); 6 scope (exit) 7 { 8 stderr.close(); 9 stderr = origStderr; 10 } 11 12 logJsonError("error", "mysterious observation", "secret", 42); 13 14 stderr.rewind(); 15 auto expected = ctRegex!( 16 `\{"secret":42,"error":"mysterious observation","thread":[0-9]+,"timestamp":[0-9]+\}` ~ '\n'); 17 auto observed = stderr.readln; 18 19 assert(matchFirst(observed, expected), "got unexpected output `" ~ observed ~ "`");
Logs a message in JSON format.