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#!/usr/bin/env ruby
# encoding: UTF-8
require File.expand_path('../test_helper', __FILE__)
# tests for bugs reported by users
class BugsTest < TestCase
def setup
RubyProf::measure_mode = RubyProf::WALL_TIME
define_methods
end
def test_array_push_unoptimized
a = nil
result = RubyProf.profile do
a = self.array_push_unoptimized
end
assert_equal 2, a.length
assert_equal ["BugsTest#test_array_push_unoptimized", "BugsTest#array_push_unoptimized", 'Array#<<', "Array#push"], result.threads.first.methods.map(&:full_name)
end
def test_array_push_optimized
a = nil
result = RubyProf.profile do
a = self.array_push_optimized
end
assert_equal 2, a.length
assert_equal ["BugsTest#test_array_push_optimized", "BugsTest#array_push_optimized", "Array#push"], result.threads.first.methods.map(&:full_name)
end
private
def define_methods
return if respond_to?(:array_push_optimized)
old_compile_option = RubyVM::InstructionSequence.compile_option
RubyVM::InstructionSequence.compile_option = {
:trace_instruction => true,
:specialized_instruction => false
}
self.class.class_eval <<-"EOM"
def array_push_unoptimized
a = []
a << 1
a.push 2
end
EOM
RubyVM::InstructionSequence.compile_option = old_compile_option
self.class.class_eval <<-"EOM"
def array_push_optimized
a = []
a << 1
a.push 2
end
EOM
end
end
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