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rcov(1) [debian man page]

rcov(1) 						    rcov test coverage analysis 						   rcov(1)

rcov - create a code coverage report for Ruby tests SYNOPSIS
rcov [options] <script1.rb> [script2.rb] [-- --extra-options] DESCRIPTION
rcov is a code coverage tool for Ruby. It creates code coverage reports showing the unit test coverage of the target code. rcov does "statement coverage", also referred to as "C0 coverage analysis". It tests, if each line of the source code has been executed. rcov is typically used to find the areas of a program that have not been sufficiently tested. It reports, what code has not been run by any test cases. It can easily be integrated into build processes (e.g. with rake or rant) and creates the coverage reports in HTML or text format. OPTIONS
-o, --output Destination directory. -I, --include PATHS Prepend PATHS to $: (colon separated list) --[no-]comments Mark all comments by default. (default: --no-comments) --test-unit-only Only trace code executed inside TestCases. --spec-only Only trace code executed inside RSpec specs. -n, --no-color Create colorblind-safe output. -i, --include-file PATTERNS Generate info for files matching a pattern (comma-separated regexp list) -x, --exclude PATTERN Don't generate info for files matching a pattern (comma-separated regexp list) --exclude-only PATTERNS Skip info only for files matching the given patterns. --rails Skip config/, environment/ and vendor/. --[no-]callsites Show callsites in generated XHTML report. (somewhat slower; disabled by default) --[no-]xrefs Generate fully cross-referenced report. (includes --callsites) -p, --profile Generate bogo-profiling info. -r, --range RANGE Color scale range for profiling info (dB). -a, --annotate Generate annotated source code. -T, --text-report Dump detailed plain-text report to stdout. (filename, LoC, total lines, coverage) -t, --text-summary Dump plain-text summary to stdout. --text-counts Dump execution counts in plaintext. --text-coverage Dump coverage info to stdout, using ANSI color sequences unless -n. --gcc Dump uncovered line in GCC error format. --aggregate FILE Aggregate data from previous runs in FILE. Overwrites FILE with the merged data. FILE is created if necessary. -D, --text-coverage-diff [FILE] Compare code coverage with saved state in FILE, defaults to Implies --comments. --save [FILE] Save coverage data to FILE, for later use with rcov -D. (default: --[no-]html Generate HTML output. (default: --html) --css relative/path/to/custom.css Use a custom CSS file for HTML output. Specified as a relative path. --sort CRITERION Sort files in the output by the specified field (name, loc, coverage) --sort-reverse Reverse files in the output. --threshold INT Only list files with coverage < INT %. (default: 101) --failure-threshold [INT] Fail if the coverage is below the threshold (default: 100) --charset CHARSET Charset used in Content-Type declaration of HTML reports. --only-uncovered Same as --threshold 100 --replace-progname Replace $0 when loading the .rb files. -w Turn warnings on (like ruby). --no-rcovrt Do not use the optimized C runtime. (will run 30-300 times slower) --diff-cmd PROGNAME Use PROGNAME for --text-coverage-diff. (default: diff) -h, --help Show extended help message --report-cov-bug SELECTOR Report coverage analysis bug for the method specified by SELECTOR (format: Foo::Bar#method, A::B.method) --version Show version EXAMPLES
To simply run rcov on all ruby files in the current directory and create a HTML coverage report in ./coverage: rcov *.rb To run the tests in ./tests, include ./lib, only take care of code executed from TestCases and output a summary to STDOUT: rcov --test-unit-only -t -I./lib ./tests/*.rb SEE ALSO
runit(1), rake(1), rant(1) Full Documentation about the integration into other tools is available in /usr/share/doc/rcov/README.* AUTHOR
The manpage is provided by Micah Anderson <> as part of the Debian's rcov package. Upstream author of rcov is Mauricio Fer- nandez <>. All the option descriptions have mainly be taken from the help output of rcov. rcov 2007-11-22 27 April 2008 rcov(1)
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