RCov - Code Coverage for Ruby
This is our fork of Mauricio Fernandez's RCov (maintained by Relevance).
NOTE: This fork does not work on Ruby 1.9.x. For coverage on Ruby 1.9 look at SimpleCov.
gem install rcov
Bugs and Issues
rcov copyright (c) 2004-2012 Mauricio Fernandez firstname.lastname@example.org rcov copyright (c) 2008-2012 Aaron Bedra and Relevance Inc.
Rcov is a code coverage tool for
Ruby. It is commonly used for viewing
overall test coverage of target code. It features:
- cross-referenced XHTML and several kinds of text reports
- support for easy automation with Rake
- Ruby 1.8.6 or higher
- (recommended) C compiler: you can also use rcov without the rcovrt extension but rcov will be two orders of magnitude slower. The extension requires Ruby 1.8.6 or higher.
De-compress the archive and enter its top directory. Then type:
($ su) # ruby setup.rb
This simple step installs rcov under the default location for Ruby
libraries. You can also customize the installation by supplying some
options to setup.rb. Try
ruby setup.rb --help.
A normal (rcovrt-enabled) install requires Ruby >= 1.8.6 and a working C toolchain; if you cannot compile Ruby extensions proceed as described below.
Install without the rcovrt extension
($su ) # ruby setup.rb all --without-ext
will install rcov without building the rcovrt extension.
In the common scenario, your tests are under
test/ and the target code
(whose coverage you want) is in
lib/. In that case, all you have to do
is use rcov to run the tests (instead of testrb), and a number of
XHTML files with the code coverage information will be generated, e.g.
rcov -Ilib test/*.rb
will execute all the
.rb files under
test/ and generate the code
coverage report for the target code (i.e. for the files in
coverage/. The target code needs not be under
lib/; rcov will detect
is as long as it is
required by the tests. rcov is smart enough to
ignore "uninteresting" files: the tests themselves, files installed in
Ruby's standard locations, etc. See
rcov --help for the list of
regexps rcov matches filenames against.
rcov can also be used from
doc/readme_for_rake or the
documentation for more information. The
Rakefile included in rcov's
sources holds a few tasks that run rcov on itself, producing a number
of reports. You can try
preferably after a full install or
ruby setup.rb config ruby setup.rb setup
so that the rcovrt extension can be used to speed up the process. This
will generate a cross-referenced XHTML report under
rcov can output information in several formats, and perform different
kinds of analyses in addition to plain code coverage. See
for a description of the available options.
rcov is licensed under the same terms as Ruby. See LICENSE.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of ePark Labs nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
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