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= +rcov+
+rcov+ is a:
1. tool for code coverage analysis for Ruby
2. library for collecting code coverage and execution count information
introspectively
If you want to use the command line tool, the output from
rcov -h
is self-explicative.
If you want to automate the execution of +rcov+ via Rake or Rant, take a look at
README.rake[link:files/README_rake.html] or
README.rant[link:files/README_rant.html], respectively.
If you want to use the associated library, read on.
== Usage of the +rcov+ runtime/library
+rcov+ is primarily a tool for code coverage analysis, but since 0.4.0 it
exposes some of its code so that you can build on top of its heuristics for
code analysis and its capabilities for coverage information and execution
count gathering.
The main classes of interest are Rcov::FileStatistics,
Rcov::CodeCoverageAnalyzer and Rcov::CallSiteAnalyzer.
Rcov::FileStatistics can use some heuristics to determine
which parts of the file are executable and which are mere comments.
Rcov::CodeCoverageAnalyzer is used to gather code coverage and execution
count information inside a running Ruby program.
Rcov::CallSiteAnalyzer is used to obtain information about where methods are
defined and who calls them.
The parts of +rcov+'s runtime meant to be reused (i.e. the external API) are
documented with RDoc. Those not meant to be used are clearly marked as so or
were deliberately removed from the present documentation.