Extended maintenance of Ruby 1.9.3 ended on February 23, 2015. Read more
Coverage provides coverage measurement feature for Ruby. This feature is experimental, so these APIs may be changed in future.
(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.
[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]}
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(); VALUE ncoverages = rb_hash_new(); if (!RTEST(coverages)) { rb_raise(rb_eRuntimeError, "coverage measurement is not enabled"); } st_foreach(RHASH_TBL(coverages), coverage_result_i, ncoverages); rb_hash_freeze(ncoverages); rb_reset_coverages(); return ncoverages; }