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import re
import subprocess
import sys
import unittest
import time
import yappi
import utils
def a():
pass
class ContextIdCallbackTest(utils.YappiUnitTestCase):
"""Test yappi.set_context_id_callback()."""
def test_profile_single_context(self):
def id_callback():
return self.callback_count
def a():
pass
self.callback_count = 1
yappi.set_context_id_callback(id_callback)
yappi.start(profile_threads=False)
a() # context-id:1
self.callback_count = 2
a() # context-id:2
stats = yappi.get_func_stats()
fsa = utils.find_stat_by_name(stats, "a")
self.assertEqual(fsa.ncall, 1)
yappi.stop()
yappi.clear_stats()
self.callback_count = 1
yappi.start() # profile_threads=True
a() # context-id:1
self.callback_count = 2
a() # context-id:2
stats = yappi.get_func_stats()
fsa = utils.find_stat_by_name(stats, "a")
self.assertEqual(fsa.ncall, 2)
def test_bad_input(self):
self.assertRaises(TypeError, yappi.set_context_id_callback, 1)
def test_clear_callback(self):
self.callback_count = 0
def callback():
self.callback_count += 1
return 1
yappi.set_context_id_callback(callback)
yappi.start()
a()
yappi.set_context_id_callback(None)
old_callback_count = self.callback_count
a()
yappi.stop()
self.assertEqual(old_callback_count, self.callback_count)
def test_callback_error(self):
self.callback_count = 0
def callback():
self.callback_count += 1
raise Exception('callback error')
yappi.set_context_id_callback(callback)
yappi.start()
a()
a()
yappi.stop()
# Callback was cleared after first error.
self.assertEqual(1, self.callback_count)
def test_callback_non_integer(self):
self.callback_count = 0
def callback():
self.callback_count += 1
return None # Supposed to return an integer.
yappi.set_context_id_callback(callback)
yappi.start()
a()
a()
yappi.stop()
# Callback was cleared after first error.
self.assertEqual(1, self.callback_count)
def test_callback(self):
self.context_id = 0
yappi.set_context_id_callback(lambda: self.context_id)
yappi.start()
a()
self.context_id = 1
a()
self.context_id = 2
a()
# Re-schedule context 1.
self.context_id = 1
a()
yappi.stop()
threadstats = yappi.get_thread_stats().sort('id', 'ascending')
self.assertEqual(3, len(threadstats))
self.assertEqual(0, threadstats[0].id)
self.assertEqual(1, threadstats[1].id)
self.assertEqual(2, threadstats[2].id)
self.assertEqual(1, threadstats[0].sched_count)
self.assertEqual(2, threadstats[1].sched_count) # Context 1 ran twice.
self.assertEqual(1, threadstats[2].sched_count)
funcstats = yappi.get_func_stats()
self.assertEqual(4, utils.find_stat_by_name(funcstats, 'a').ncall)
def test_pause_resume(self):
yappi.set_context_id_callback(lambda: self.context_id)
yappi.set_clock_type('wall')
# Start in context 0.
self.context_id = 0
yappi.start()
time.sleep(0.08)
# Switch to context 1.
self.context_id = 1
time.sleep(0.05)
# Switch back to context 0.
self.context_id = 0
time.sleep(0.07)
yappi.stop()
t_stats = yappi.get_thread_stats().sort('id', 'ascending')
self.assertEqual(2, len(t_stats))
self.assertEqual(0, t_stats[0].id)
self.assertEqual(2, t_stats[0].sched_count)
self.assertTrue(0.15 < t_stats[0].ttot < 0.7, t_stats[0].ttot)
self.assertEqual(1, t_stats[1].id)
self.assertEqual(1, t_stats[1].sched_count)
# Context 1 was scheduled for 0.05 seconds during the run of the
# profiler
self.assert_almost_equal(t_stats[1].ttot, 0.05)
class ContextNameCallbackTest(utils.YappiUnitTestCase):
""" Test yappi.set_context_name_callback(). """
def tearDown(self):
yappi.set_context_name_callback(None)
super().tearDown()
def test_bad_input(self):
self.assertRaises(TypeError, yappi.set_context_name_callback, 1)
def test_clear_callback(self):
self.callback_count = 0
def callback():
self.callback_count += 1
return 'name'
yappi.set_context_name_callback(callback)
yappi.start()
a()
yappi.set_context_name_callback(None)
old_callback_count = self.callback_count
a()
yappi.stop()
self.assertEqual(old_callback_count, self.callback_count)
def test_callback_error(self):
self.callback_count = 0
def callback():
self.callback_count += 1
raise Exception('callback error')
yappi.set_context_name_callback(callback)
yappi.start()
a()
a()
yappi.stop()
# Callback was cleared after first error.
self.assertEqual(1, self.callback_count)
def test_callback_none_return(self):
self.callback_count = 0
def callback():
self.callback_count += 1
if self.callback_count < 3:
return None # yappi will call again
else:
return "name"
yappi.set_context_name_callback(callback)
yappi.start()
a()
a()
yappi.stop()
# yappi tried again until a string was returned
self.assertEqual(3, self.callback_count)
def test_callback_non_string(self):
self.callback_count = 0
def callback():
self.callback_count += 1
return 1 # Supposed to return a string.
yappi.set_context_name_callback(callback)
yappi.start()
a()
a()
yappi.stop()
# Callback was cleared after first error.
self.assertEqual(1, self.callback_count)
def test_callback(self):
self.context_id = 0
self.context_name = 'a'
yappi.set_context_id_callback(lambda: self.context_id)
yappi.set_context_name_callback(lambda: self.context_name)
yappi.start()
a()
self.context_id = 1
self.context_name = 'b'
a()
# Re-schedule context 0.
self.context_id = 0
self.context_name = 'a'
a()
yappi.stop()
threadstats = yappi.get_thread_stats().sort('name', 'ascending')
self.assertEqual(2, len(threadstats))
self.assertEqual(0, threadstats[0].id)
self.assertEqual('a', threadstats[0].name)
self.assertEqual(1, threadstats[1].id)
self.assertEqual('b', threadstats[1].name)
if __name__ == '__main__':
unittest.main()
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