MacBook Air

$ TESTOPTS="-h" rake
/Users/ross/.rbenv/versions/2.0.0-p247/bin/ruby -I"lib:test" -I"/Users/ross/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.1.0/lib" "/Users/ross/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.1.0/lib/rake/rake_test_loader.rb" "test/unit/basic_stat_request_packet_test.rb" "test/unit/basic_stat_request_test.rb" "test/unit/basic_stat_response_packet_test.rb" "test/unit/handshake_request_packet_test.rb" "test/unit/handshake_request_test.rb" "test/unit/handshake_response_packet_test.rb" "test/unit/int_stringz_test.rb" -h
Test::Unit automatic runner.
Usage: /Users/ross/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.1.0/lib/rake/rake_test_loader.rb [options] [-- untouched arguments]
    -r, --runner=RUNNER              Use the given RUNNER.
                                     (c[onsole], e[macs], x[ml])
        --collector=COLLECTOR        Use the given COLLECTOR.
                                     (de[scendant], di[r], l[oad], o[bject]_space)
    -n, --name=NAME                  Runs tests matching NAME.
                                     (patterns may be used).
        --ignore-name=NAME           Ignores tests matching NAME.
                                     (patterns may be used).
    -t, --testcase=TESTCASE          Runs tests in TestCases matching TESTCASE.
                                     (patterns may be used).
        --ignore-testcase=TESTCASE   Ignores tests in TestCases matching TESTCASE.
                                     (patterns may be used).
        --[no-]priority-mode         Runs some tests based on their priority.
        --default-priority=PRIORITY  Uses PRIORITY as default priority
                                     (h[igh], i[mportant], l[ow], m[ust], ne[ver], no[rmal])
    -I, --load-path=DIR[:DIR...]     Appends directory list to $LOAD_PATH.
        --color-scheme=SCHEME        Use SCHEME as color scheme.
                                     (d[efault])
        --config=FILE                Use YAML fomat FILE content as configuration file.
        --order=ORDER                Run tests in a test case in ORDER order.
                                     (a[lphabetic], d[efined], r[andom])
        --max-diff-target-string-size=SIZE
                                     Shows diff if both expected result string size and actual result string size are less than or equal SIZE in bytes.
                                     (1000)
    -v, --verbose=[LEVEL]            Set the output level (default is verbose).
                                     (important-only, n[ormal], p[rogress], s[ilent], v[erbose])
        --[no-]use-color=[auto]      Uses color output
                                     (default is auto)
        --progress-row-max=MAX       Uses MAX as max terminal width for progress mark
                                     (default is auto)
        --no-show-detail-immediately Shows not passed test details immediately.
                                     (default is yes)
        --output-file-descriptor=FD  Outputs to file descriptor FD
        --                           Stop processing options so that the
                                     remaining options will be passed to the
                                     test.
    -h, --help                       Display this help.

Deprecated options:
        --console                    Console runner (use --runner).

Retina MacBook Pro

$ TESTOPTS="-h" rake
/Users/ross/.rbenv/versions/2.0.0-p247/bin/ruby -I"lib:test" -I"/Users/ross/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.1.0/lib" "/Users/ross/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rake-10.1.0/lib/rake/rake_test_loader.rb" "test/unit/basic_stat_request_packet_test.rb" "test/unit/basic_stat_request_test.rb" "test/unit/basic_stat_response_packet_test.rb" "test/unit/handshake_request_packet_test.rb" "test/unit/handshake_request_test.rb" "test/unit/handshake_response_packet_test.rb" "test/unit/int_stringz_test.rb" -h
Usage: rake_test_loader [options]
minitest options:
    -h, --help                       Display this help.
    -s, --seed SEED                  Sets random seed
    -v, --verbose                    Verbose. Show progress processing files.
    -n, --name PATTERN               Filter test names on pattern.
        --jobs-status [TYPE]         Show status of jobs every file; Disabled when --jobs isn't specified.
    -j, --jobs N                     Allow run tests with N jobs at once
        --separate                   Restart job process after one testcase has done
        --retry                      Retry running testcase when --jobs specified
        --no-retry                   Disable --retry
        --ruby VAL                   Path to ruby; It'll have used at -j option
    -q, --hide-skip                  Hide skipped tests
        --show-skip                  Show skipped tests
        --color[=WHEN]               colorize the output.  WHEN defaults to 'always'
                                     or can be 'never' or 'auto'.
        --tty[=WHEN]                 force to output tty control.  WHEN defaults to 'yes'
                                     or can be 'no'.
    -b, --basedir=DIR                Base directory of test suites.
    -x, --exclude PATTERN            Exclude test files on pattern.
    -Idirectory                      Add library load path
        --[no-]gc-stress             Set GC.stress as true