Extended maintenance of Ruby versions 1.8.7 and 1.9.2 ended on July 31, 2014. 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(); 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; }