我正在使用rails 2.3.5 .rake spec工作正常.
这是来自spec --help.
spec --help
-f, --format FORMAT[:WHERE] Specifies what format to use for output. Specify WHERE to tell
the formatter where to write the output. All built-in formats
expect WHERE to be a file name, and will write to $stdout if it's
not specified. The --format option may be specified several times
if you want several outputs
Builtin formats:
silent|l : No output
progress|p : Text-based progress bar
profile|o : Text-based progress bar with profiling of …