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#!/usr/bin/env ruby
require 'test/unit'
require 'ruby-prof'
require 'timeout'
# -- Tests ----
class ThreadTest < Test::Unit::TestCase
def setup
# Need to use wall time for this test due to the sleep calls
RubyProf::measure_mode = RubyProf::WALL_TIME
end
def test_thread_count
RubyProf.start
thread = Thread.new do
sleep(1)
end
thread.join
result = RubyProf.stop
assert_equal(2, result.threads.keys.length)
end
def test_thread_identity
RubyProf.start
thread = Thread.new do
sleep(1)
end
thread.join
result = RubyProf.stop
thread_ids = result.threads.keys.sort
threads = [Thread.current, thread].sort_by {|thread| thread.object_id}
assert_equal(threads[0].object_id, thread_ids[0])
assert_equal(threads[1].object_id, thread_ids[1])
assert_instance_of(Thread, ObjectSpace._id2ref(thread_ids[0]))
assert_equal(threads[0], ObjectSpace._id2ref(thread_ids[0]))
assert_instance_of(Thread, ObjectSpace._id2ref(thread_ids[1]))
assert_equal(threads[1], ObjectSpace._id2ref(thread_ids[1]))
end
def test_thread_timings
RubyProf.start
thread = Thread.new do
sleep(1)
end
thread.join
result = RubyProf.stop
# Check background thread
methods = result.threads[thread.object_id].sort.reverse
assert_equal(2, methods.length)
method = methods[0]
assert_equal('ThreadTest#test_thread_timings', method.full_name)
assert_equal(1, method.called)
assert_in_delta(1, method.total_time, 0.01)
assert_in_delta(0, method.self_time, 0.01)
assert_in_delta(1, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings', call_info.call_sequence)
assert_equal(1, call_info.children.length)
method = methods[1]
assert_equal('Kernel#sleep', method.full_name)
assert_equal(1, method.called)
assert_in_delta(1, method.total_time, 0.01)
assert_in_delta(1.0, method.self_time, 0.01)
assert_in_delta(0, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings->Kernel#sleep', call_info.call_sequence)
assert_equal(0, call_info.children.length)
# Check foreground thread
methods = result.threads[Thread.current.object_id].sort.reverse
assert_equal(4, methods.length)
methods = methods.sort.reverse
method = methods[0]
assert_equal('ThreadTest#test_thread_timings', method.full_name)
assert_equal(0, method.called)
assert_in_delta(1, method.total_time, 0.01)
assert_in_delta(0, method.self_time, 0.01)
assert_in_delta(1.0, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings', call_info.call_sequence)
assert_equal(2, call_info.children.length)
method = methods[1]
assert_equal('Thread#join', method.full_name)
assert_equal(1, method.called)
assert_in_delta(1, method.total_time, 0.01)
assert_in_delta(0, method.self_time, 0.01)
assert_in_delta(1.0, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings->Thread#join', call_info.call_sequence)
assert_equal(0, call_info.children.length)
method = methods[2]
assert_equal('<Class::Thread>#new', method.full_name)
assert_equal(1, method.called)
assert_in_delta(0, method.total_time, 0.01)
assert_in_delta(0, method.self_time, 0.01)
assert_in_delta(0, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings-><Class::Thread>#new', call_info.call_sequence)
assert_equal(1, call_info.children.length)
method = methods[3]
assert_equal('Thread#initialize', method.full_name)
assert_equal(1, method.called)
assert_in_delta(0, method.total_time, 0.01)
assert_in_delta(0, method.self_time, 0.01)
assert_in_delta(0, method.wait_time, 0.01)
assert_in_delta(0, method.children_time, 0.01)
assert_equal(1, method.call_infos.length)
call_info = method.call_infos[0]
assert_equal('ThreadTest#test_thread_timings-><Class::Thread>#new->Thread#initialize', call_info.call_sequence)
assert_equal(0, call_info.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
end
end
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