Extended maintenance of Ruby versions 1.8.7 and 1.9.2 ended on July 31, 2014. Read more

In Files

  • coverage/coverage.c

Methods

Class/Module Index [+]

Quicksearch

Coverage

Coverage provides coverage measurement feature for Ruby. This feature is experimental, so these APIs may be changed in future.

Usage

(1) require “coverage.so” (2) do ::start (3) require or load Ruby source file (4) ::result will return a hash that contains filename as key and

coverage array as value.

Example

[foo.rb]
s = 0
10.times do |x|
  s += x
end

if s == 45
  p :ok
else
  p :ng
end
[EOF]

require "coverage.so"
Coverage.start
require "foo.rb"
p Coverage.result  #=> {"foo.rb"=>[1, 1, 10, nil, nil, 1, 1, nil, 0, nil]}

Public Class Methods

result => hash click to toggle source

Returns a hash that contains filename as key and coverage array as value and disables coverage measurement.

 
               static VALUE
rb_coverage_result(VALUE klass)
{
    VALUE coverages = rb_get_coverages();
    if (!RTEST(coverages)) {
        rb_raise(rb_eRuntimeError, "coverage measurement is not enabled");
    }
    RBASIC(coverages)->klass = rb_cHash;
    st_foreach(RHASH_TBL(coverages), coverage_result_i, 0);
    rb_hash_freeze(coverages);
    rb_reset_coverages();
    return coverages;
}
            
start => nil click to toggle source

Enables coverage measurement.

 
               static VALUE
rb_coverage_start(VALUE klass)
{
    if (!RTEST(rb_get_coverages())) {
        VALUE coverages = rb_hash_new();
        RBASIC(coverages)->klass = 0;
        rb_set_coverages(coverages);
    }
    return Qnil;
}
            

Commenting is here to help enhance the documentation. For example, code samples, or clarification of the documentation.

If you have questions about Ruby or the documentation, please post to one of the Ruby mailing lists. You will get better, faster, help that way.

If you wish to post a correction of the docs, please do so, but also file bug report so that it can be corrected for the next release. Thank you.

If you want to help improve the Ruby documentation, please visit Documenting-ruby.org.

blog comments powered by Disqus