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ruby--ruby/test/ruby/test_case.rb
wanabe 96688ecbab * compile.c (case_when_optimizable_literal): When float value can be
treated as integer, add to table hash of case that way.
  based on a patch from Ikuo KOBORI. [ruby-dev:42038]

* insnf.def (opt_case_dispatch): ditto.

* test/ruby/test_case.rb: add tests.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-09-09 13:40:14 +00:00

106 lines
1.6 KiB
Ruby

require 'test/unit'
require_relative 'envutil.rb'
class TestCase < Test::Unit::TestCase
def test_case
case 5
when 1, 2, 3, 4, 6, 7, 8
assert(false)
when 5
assert(true)
end
case 5
when 5
assert(true)
when 1..10
assert(false)
end
case 5
when 1..10
assert(true)
else
assert(false)
end
case 5
when 5
assert(true)
else
assert(false)
end
case "foobar"
when /^f.*r$/
assert(true)
else
assert(false)
end
case
when true
assert(true)
when false, nil
assert(false)
else
assert(false)
end
case "+"
when *%w/. +/
assert(true)
else
assert(false)
end
case
when *[], false
assert(false)
else
assert(true)
end
case
when *false, []
assert(true)
else
assert(false)
end
assert_raise(NameError) do
case
when false, *x, false
end
end
end
def test_deoptimization
assert_in_out_err(['-e', <<-EOS], '', %w[42], [])
class Symbol; undef ===; def ===(o); p 42; true; end; end; case :foo; when :foo; end
EOS
assert_in_out_err(['-e', <<-EOS], '', %w[42], [])
class Fixnum; undef ===; def ===(o); p 42; true; end; end; case 1; when 1; end
EOS
end
def test_optimization
case 1
when 0.9, 1.1
assert(false)
when 1.0
assert(true)
else
assert(false)
end
case 536870912
when 536870911.9, 536870912.1
assert(false)
when 536870912.0
assert(true)
else
assert(false)
end
end
end