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#!/usr/bin/env ruby
require 'test/unit'
require 'ruby-prof'
require 'timeout'
require 'test_helper'
# Need to use wall time for this test due to the sleep calls
RubyProf::measure_mode = RubyProf::WALL_TIME
# -- Tests ----
class ThreadTest < Test::Unit::TestCase
def test_thread_timings
RubyProf.start
sleep(2)
thread = Thread.new do
sleep(0.5)
sleep(2)
end
thread.join
result = RubyProf.stop
values = result.threads.values.sort do |value1, value2|
value1.length <=> value2.length
end
# Check background thread
methods = values.first.sort.reverse
assert_equal(2, methods.length)
method = methods[0]
assert_equal('ThreadTest#test_thread_timings', method.full_name)
assert_in_delta(2.5, method.total_time, 0.02)
assert_in_delta(0, method.self_time, 0.02)
assert_in_delta(0.5, method.wait_time, 0.02)
assert_in_delta(2.0, method.children_time, 0.02)
assert_equal(0, method.called)
assert_equal(0, method.parents.length)
assert_equal(1, method.children.length)
method = methods[1]
assert_equal('Kernel#sleep', method.full_name)
assert_in_delta(2.5, method.total_time, 0.02)
assert_in_delta(2.0, method.self_time, 0.02)
assert_in_delta(0.5, method.wait_time, 0.02)
assert_in_delta(0, method.children_time, 0.02)
assert_equal(2, method.called)
assert_equal(1, method.parents.length)
assert_equal(0, method.children.length)
# Check foreground thread
methods = values.last.sort.reverse
assert_equal(5, methods.length)
methods = methods.sort.reverse
method = methods[0]
assert_equal('ThreadTest#test_thread_timings', method.full_name)
assert_in_delta(4.5, method.total_time, 0.02)
assert_in_delta(0, method.self_time, 0.02)
assert_in_delta(2.0, method.wait_time, 0.02)
assert_in_delta(2.5, method.children_time, 0.02)
assert_equal(0, method.called)
assert_equal(0, method.parents.length)
assert_equal(3, method.children.length)
method = methods[1]
assert_equal('Thread#join', method.full_name)
assert_in_delta(2.5, method.total_time, 0.02)
assert_in_delta(0.5, method.self_time, 0.02)
assert_in_delta(2.0, method.wait_time, 0.02)
assert_in_delta(0, method.children_time, 0.02)
assert_equal(1, method.called)
assert_equal(1, method.parents.length)
assert_equal(0, method.children.length)
method = methods[2]
assert_equal('Kernel#sleep', method.full_name)
assert_in_delta(2, method.total_time, 0.02)
assert_in_delta(2.0, method.self_time, 0.02)
assert_in_delta(0, method.wait_time, 0.02)
assert_in_delta(0, method.children_time, 0.02)
assert_equal(1, method.called)
assert_equal(1, method.parents.length)
assert_equal(0, method.children.length)
method = methods[3]
assert_equal('<Class::Thread>#new', method.full_name)
assert_in_delta(0, method.total_time, 0.02)
assert_in_delta(0, method.self_time, 0.02)
assert_in_delta(0, method.wait_time, 0.02)
assert_in_delta(0, method.children_time, 0.02)
assert_equal(1, method.called)
assert_equal(1, method.parents.length)
assert_equal(1, method.children.length)
method = methods[4]
assert_equal('Thread#initialize', method.full_name)
assert_in_delta(0, method.total_time, 0.02)
assert_in_delta(0, method.self_time, 0.02)
assert_in_delta(0, method.wait_time, 0.02)
assert_in_delta(0, method.children_time, 0.02)
assert_equal(1, method.called)
assert_equal(1, method.parents.length)
assert_equal(0, method.children.length)
end
def test_thread
result = RubyProf.profile do
begin
status = Timeout::timeout(2) do
while true
next
end
end
rescue Timeout::Error
end
end
printer = RubyProf::GraphPrinter.new(result)
printer.print
result.threads.each do |thread_id, methods|
STDOUT << "thread: " << thread_id << "\n"
methods.each do |method|
check_parent_times(method)
check_parent_calls(method)
check_child_times(method)
end
end
end
end
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