QueenCheck 
QueenCheck is random test library.
Inspired by QuickCheck library in Haskell.
Usage
$ gem install queencheck
or
$ git clone git://github.com/rosylilly/QueenCheck.git QueenCheck
$ cd QueenCheck
$ bundle install
$ bundle exec rake install
CI Report
Abstract
let's start DDT(Data Driven Testing)
require 'queencheck'
def plus(x, y)
x + y
end
prop_Plus = QueenCheck::Testable.new(Integer, Integer) do | x, y |
plus(x, y) == x + y
end
puts prop_Plus.check.pretty_report
# Tests: 100
# ✓ Successes : 100
# ✗ Failures : 0
# ✷ Exceptions : 0
with exception, labeling and where
def div(x, y)
x / y # => raise ZeroDividedError if y == 0
end
prop_Div = QueenCheck::Testable.new(Integer, Integer) do | x, y |
div(x, y) == x / y
end
puts prop_Div.check.pretty_report
# Tests: 100
# ✓ Successes : 99
# ✗ Failures : 1
# ✷ Exceptions : 1
puts prop_Div.check_with_label(
"x > y" => proc{|x,y| x > y },
"x < y" => proc{|x,y| x < y },
"x = y" => proc{|x,y| x == y },
"x is 0" => proc{|x,y| x.zero? },
"y is 0" => proc{|x,y| y.zero? }
).pretty_report
# Tests: 100
# ✓ Successes : 99
# x > y : 43
# x < y : 56
# x = y : 0
# x is 0 : 0
# y is 0 : 0
# ✗ Failures : 1
# x > y : 0
# x < y : 0
# x = y : 1
# x is 0 : 1
# y is 0 : 1
# ✷ Exceptions : 1
# x > y : 0
# x < y : 0
# x = y : 1
# x is 0 : 1
# y is 0 : 1
int_generater = Integer.arbitrary.gen # => QueenCheck::Gen
nonzero_integer = int_generater.where{|num| !num.zero? }
prop_DivSuccess = QueenCheck::Testable.new(nonzero_integer, nonzero_integer) do | x, y |
div(x, y) == x / y
end
puts prop_DivSuccess.check_with_label(
"x > y" => proc{|x,y| x > y },
"x < y" => proc{|x,y| x < y },
"x = y" => proc{|x,y| x == y },
"x is 0" => proc{|x,y| x.zero? },
"y is 0" => proc{|x,y| y.zero? }
).pretty_report
# Tests: 99
# ✓ Successes : 99
# x > y : 55
# x < y : 44
# x = y : 0
# x is 0 : 0
# y is 0 : 0
# ✗ Failures : 0
# x > y : 0
# x < y : 0
# x = y : 0
# x is 0 : 0
# y is 0 : 0
# ✷ Exceptions : 0
# x > y : 0
# x < y : 0
# x = y : 0
# x is 0 : 0
# y is 0 : 0
Help me
please fork QueenCheck repository.
I'm waiting for the code review of you !