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Module: Coverage

Relationships & Source Files
Defined in: ext/coverage/coverage.c

Overview

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. A coverage array gives, for each line, the number of line execution by the interpreter. A nil value means coverage is disabled for this line (lines like else and end).

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]}

Class Method Summary

  • .result ⇒ Hash mod_func

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

  • .start ⇒ nil mod_func

    Enables coverage measurement.

Class Method Details

.resultHash (mod_func)

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

.startnil (mod_func)

Enables coverage measurement.