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import unittest
from test import support
import pstats
class AddCallersTestCase(unittest.TestCase):
"""Tests for pstats.add_callers helper."""
def test_combine_results(self):
"""pstats.add_callers should combine the call results of both target
and source by adding the call time. See issue1269."""
# new format: used by the cProfile module
target = {"a": (1, 2, 3, 4)}
source = {"a": (1, 2, 3, 4), "b": (5, 6, 7, 8)}
new_callers = pstats.add_callers(target, source)
self.assertEqual(new_callers, {'a': (2, 4, 6, 8), 'b': (5, 6, 7, 8)})
# old format: used by the profile module
target = {"a": 1}
source = {"a": 1, "b": 5}
new_callers = pstats.add_callers(target, source)
self.assertEqual(new_callers, {'a': 2, 'b': 5})
def test_main():
support.run_unittest(
AddCallersTestCase
)
if __name__ == "__main__":
test_main()
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