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d0cdaee798
LogParser doesn’t use `csv.reader` anymore. Parsing is handled by a Finite State Machine. Each line is matched against a set of (mutually exclusive) regular expressions that represent known states. When a match is found, corresponding parsing action is taken.
599 lines
24 KiB
Python
599 lines
24 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# ===--- test_compare_perf_tests.py --------------------------------------===//
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#
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# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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#
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# ===---------------------------------------------------------------------===//
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import os
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import shutil
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import sys
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import tempfile
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import unittest
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from compare_perf_tests import LogParser
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from compare_perf_tests import PerformanceTestResult
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from compare_perf_tests import ReportFormatter
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from compare_perf_tests import ResultComparison
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from compare_perf_tests import TestComparator
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from compare_perf_tests import main
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from compare_perf_tests import parse_args
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from test_utils import captured_output
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class TestPerformanceTestResult(unittest.TestCase):
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def test_init(self):
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log_line = '1,AngryPhonebook,20,10664,12933,11035,576,10884'
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r = PerformanceTestResult(log_line.split(','))
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self.assertEquals(r.name, 'AngryPhonebook')
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self.assertEquals((r.samples, r.min, r.max, r.mean, r.sd, r.median),
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(20, 10664, 12933, 11035, 576, 10884))
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log_line = '1,AngryPhonebook,1,12045,12045,12045,0,12045,10510336'
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r = PerformanceTestResult(log_line.split(','))
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self.assertEquals(r.max_rss, 10510336)
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def test_repr(self):
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log_line = '1,AngryPhonebook,20,10664,12933,11035,576,10884'
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r = PerformanceTestResult(log_line.split(','))
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self.assertEquals(
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str(r),
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'<PerformanceTestResult name:\'AngryPhonebook\' samples:20 '
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'min:10664 max:12933 mean:11035 sd:576.0 median:10884>'
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)
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def test_merge(self):
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tests = """1,AngryPhonebook,1,12045,12045,12045,0,12045,10510336
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1,AngryPhonebook,1,12325,12325,12325,0,12325,10510336
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1,AngryPhonebook,1,11616,11616,11616,0,11616,10502144
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1,AngryPhonebook,1,12270,12270,12270,0,12270,10498048""".split('\n')
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results = map(PerformanceTestResult,
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[line.split(',') for line in tests])
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def as_tuple(r):
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return (r.min, r.max, round(r.mean, 2), round(r.sd, 2), r.median,
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r.max_rss)
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r = results[0]
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self.assertEquals(as_tuple(r),
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(12045, 12045, 12045, 0, 12045, 10510336))
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r.merge(results[1])
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self.assertEquals(as_tuple(r),
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(12045, 12325, 12185, 197.99, 12045, 10510336))
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r.merge(results[2])
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self.assertEquals(as_tuple(r),
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(11616, 12325, 11995.33, 357.10, 12045, 10510336))
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r.merge(results[3])
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self.assertEquals(as_tuple(r),
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(11616, 12325, 12064, 322.29, 12045, 10510336))
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class TestResultComparison(unittest.TestCase):
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def setUp(self):
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self.r0 = PerformanceTestResult(
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'101,GlobalClass,20,0,0,0,0,0,10185728'.split(','))
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self.r01 = PerformanceTestResult(
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'101,GlobalClass,20,20,20,20,0,0,10185728'.split(','))
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self.r1 = PerformanceTestResult(
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'1,AngryPhonebook,1,12325,12325,12325,0,12325,10510336'.split(','))
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self.r2 = PerformanceTestResult(
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'1,AngryPhonebook,1,11616,11616,11616,0,11616,10502144'.split(','))
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def test_init(self):
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rc = ResultComparison(self.r1, self.r2)
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self.assertEquals(rc.name, 'AngryPhonebook')
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self.assertAlmostEquals(rc.ratio, 12325.0 / 11616.0)
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self.assertAlmostEquals(rc.delta, (((11616.0 / 12325.0) - 1) * 100),
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places=3)
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# handle test results that sometimes change to zero, when compiler
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# optimizes out the body of the incorrectly written test
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rc = ResultComparison(self.r0, self.r0)
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self.assertEquals(rc.name, 'GlobalClass')
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self.assertAlmostEquals(rc.ratio, 1)
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self.assertAlmostEquals(rc.delta, 0, places=3)
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rc = ResultComparison(self.r0, self.r01)
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self.assertAlmostEquals(rc.ratio, 0, places=3)
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self.assertAlmostEquals(rc.delta, 2000000, places=3)
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rc = ResultComparison(self.r01, self.r0)
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self.assertAlmostEquals(rc.ratio, 20001)
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self.assertAlmostEquals(rc.delta, -99.995, places=3)
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# disallow comparison of different test results
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self.assertRaises(
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AssertionError,
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ResultComparison, self.r0, self.r1
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)
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def test_values_is_dubious(self):
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self.assertFalse(ResultComparison(self.r1, self.r2).is_dubious)
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self.r2.max = self.r1.min + 1
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# new.min < old.min < new.max
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self.assertTrue(ResultComparison(self.r1, self.r2).is_dubious)
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# other way around: old.min < new.min < old.max
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self.assertTrue(ResultComparison(self.r2, self.r1).is_dubious)
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class FileSystemIntegration(unittest.TestCase):
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def setUp(self):
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# Create a temporary directory
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self.test_dir = tempfile.mkdtemp()
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def tearDown(self):
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# Remove the directory after the test
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shutil.rmtree(self.test_dir)
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def write_temp_file(self, file_name, data):
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temp_file_name = os.path.join(self.test_dir, file_name)
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with open(temp_file_name, 'w') as f:
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f.write(data)
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return temp_file_name
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class OldAndNewLog(unittest.TestCase):
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old_log_content = """1,AngryPhonebook,20,10458,12714,11000,0,11000,10204365
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2,AnyHashableWithAClass,20,247027,319065,259056,0,259056,10250445
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3,Array2D,20,335831,400221,346622,0,346622,28297216
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4,ArrayAppend,20,23641,29000,24990,0,24990,11149926
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34,BitCount,20,3,4,4,0,4,10192896
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35,ByteSwap,20,4,6,4,0,4,10185933"""
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new_log_content = """265,TwoSum,20,5006,5679,5111,0,5111
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35,ByteSwap,20,0,0,0,0,0
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34,BitCount,20,9,9,9,0,9
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4,ArrayAppend,20,20000,29000,24990,0,24990
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3,Array2D,20,335831,400221,346622,0,346622
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1,AngryPhonebook,20,10458,12714,11000,0,11000"""
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old_results = dict([(r.name, r)
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for r in
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map(PerformanceTestResult,
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[line.split(',')
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for line in
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old_log_content.splitlines()])])
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new_results = dict([(r.name, r)
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for r in
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map(PerformanceTestResult,
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[line.split(',')
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for line in
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new_log_content.splitlines()])])
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def assert_report_contains(self, texts, report):
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assert not isinstance(texts, str)
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for text in texts:
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self.assertIn(text, report)
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class TestLogParser(unittest.TestCase):
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def test_parse_results_csv(self):
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"""Ignores header row, empty lines and Totals row."""
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log = """#,TEST,SAMPLES,MIN(us),MAX(us),MEAN(us),SD(us),MEDIAN(us)
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34,BitCount,20,3,4,4,0,4
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Totals,269
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"""
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parser = LogParser()
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results = parser.parse_results(log.splitlines())
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self.assertTrue(isinstance(results[0], PerformanceTestResult))
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self.assertEquals(results[0].name, 'BitCount')
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def test_parse_results_verbose(self):
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"""Parse multiple performance test results with 2 sample formats:
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single line for N = 1; two lines for N > 1.
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"""
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verbose_log = """--- DATA ---
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#,TEST,SAMPLES,MIN(us),MAX(us),MEAN(us),SD(us),MEDIAN(us)
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Running AngryPhonebook for 3 samples.
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Measuring with scale 78.
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Sample 0,11812
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Measuring with scale 90.
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Sample 1,13898
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Measuring with scale 91.
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Sample 2,11467
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1,AngryPhonebook,3,11467,13898,12392,1315,11812
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Running Array2D for 3 samples.
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Sample 0,369900
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Sample 1,381039
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Sample 2,371043
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3,Array2D,3,369900,381039,373994,6127,371043
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Totals,2"""
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parser = LogParser()
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results = parser.parse_results(verbose_log.split('\n'))
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r = results[0]
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self.assertEquals(
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(r.name, r.min, r.max, int(r.mean), int(r.sd), r.median),
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('AngryPhonebook', 11467, 13898, 12392, 1315, 11812)
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)
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self.assertEquals(r.samples, len(r.all_samples))
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self.assertEquals(results[0].all_samples,
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[(0, 78, 11812), (1, 90, 13898), (2, 91, 11467)])
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r = results[1]
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self.assertEquals(
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(r.name, r.min, r.max, int(r.mean), int(r.sd), r.median),
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('Array2D', 369900, 381039, 373994, 6127, 371043)
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)
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self.assertEquals(r.samples, len(r.all_samples))
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self.assertEquals(results[1].all_samples,
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[(0, 1, 369900), (1, 1, 381039), (2, 1, 371043)])
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def test_results_from_merge(self):
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"""Parsing concatenated log merges same PerformanceTestResults"""
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concatenated_logs = """4,ArrayAppend,20,23641,29000,24990,0,24990
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4,ArrayAppend,1,20000,20000,20000,0,20000"""
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results = LogParser.results_from_string(concatenated_logs)
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self.assertEquals(results.keys(), ['ArrayAppend'])
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result = results['ArrayAppend']
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self.assertTrue(isinstance(result, PerformanceTestResult))
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self.assertEquals(result.min, 20000)
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self.assertEquals(result.max, 29000)
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class TestTestComparator(OldAndNewLog):
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def test_init(self):
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def names(tests):
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return [t.name for t in tests]
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tc = TestComparator(self.old_results, self.new_results, 0.05)
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self.assertEquals(names(tc.unchanged), ['AngryPhonebook', 'Array2D'])
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self.assertEquals(names(tc.increased), ['ByteSwap', 'ArrayAppend'])
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self.assertEquals(names(tc.decreased), ['BitCount'])
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self.assertEquals(names(tc.added), ['TwoSum'])
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self.assertEquals(names(tc.removed), ['AnyHashableWithAClass'])
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# other way around
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tc = TestComparator(self.new_results, self.old_results, 0.05)
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self.assertEquals(names(tc.unchanged), ['AngryPhonebook', 'Array2D'])
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self.assertEquals(names(tc.increased), ['BitCount'])
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self.assertEquals(names(tc.decreased), ['ByteSwap', 'ArrayAppend'])
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self.assertEquals(names(tc.added), ['AnyHashableWithAClass'])
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self.assertEquals(names(tc.removed), ['TwoSum'])
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# delta_threshold determines the sorting into change groups;
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# report only change above 100% (ByteSwap's runtime went to 0):
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tc = TestComparator(self.old_results, self.new_results, 1)
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self.assertEquals(
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names(tc.unchanged),
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['AngryPhonebook', 'Array2D', 'ArrayAppend', 'BitCount']
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)
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self.assertEquals(names(tc.increased), ['ByteSwap'])
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self.assertEquals(tc.decreased, [])
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class TestReportFormatter(OldAndNewLog):
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def setUp(self):
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super(TestReportFormatter, self).setUp()
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self.tc = TestComparator(self.old_results, self.new_results, 0.05)
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self.rf = ReportFormatter(self.tc, '', '', changes_only=False)
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self.markdown = self.rf.markdown()
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self.git = self.rf.git()
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self.html = self.rf.html()
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def assert_markdown_contains(self, texts):
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self.assert_report_contains(texts, self.markdown)
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def assert_git_contains(self, texts):
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self.assert_report_contains(texts, self.git)
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def assert_html_contains(self, texts):
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self.assert_report_contains(texts, self.html)
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def test_values(self):
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self.assertEquals(
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ReportFormatter.values(PerformanceTestResult(
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'1,AngryPhonebook,20,10664,12933,11035,576,10884'.split(','))),
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('AngryPhonebook', '10664', '12933', '11035', '—')
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)
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self.assertEquals(
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ReportFormatter.values(PerformanceTestResult(
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'1,AngryPhonebook,1,12045,12045,12045,0,12045,10510336'
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.split(','))),
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('AngryPhonebook', '12045', '12045', '12045', '10510336')
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)
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r1 = PerformanceTestResult(
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'1,AngryPhonebook,1,12325,12325,12325,0,12325,10510336'.split(','))
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r2 = PerformanceTestResult(
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'1,AngryPhonebook,1,11616,11616,11616,0,11616,10502144'.split(','))
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self.assertEquals(
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ReportFormatter.values(ResultComparison(r1, r2)),
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('AngryPhonebook', '12325', '11616', '-5.8%', '1.06x')
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)
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self.assertEquals(
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ReportFormatter.values(ResultComparison(r2, r1)),
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('AngryPhonebook', '11616', '12325', '+6.1%', '0.94x')
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)
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r2.max = r1.min + 1
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self.assertEquals(
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ReportFormatter.values(ResultComparison(r1, r2))[4],
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'1.06x (?)' # is_dubious
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)
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def test_justified_columns(self):
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"""Table columns are all formated with same width, defined by the
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longest value.
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"""
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self.assert_markdown_contains([
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'AnyHashableWithAClass | 247027 | 319065 | 259056 | 10250445',
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'Array2D | 335831 | 335831 | +0.0% | 1.00x'])
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self.assert_git_contains([
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'AnyHashableWithAClass 247027 319065 259056 10250445',
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'Array2D 335831 335831 +0.0% 1.00x'])
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def test_column_headers(self):
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"""Report contains table headers for ResultComparisons and changed
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PerformanceTestResults.
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"""
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performance_test_result = self.tc.added[0]
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self.assertEquals(
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ReportFormatter.header_for(performance_test_result),
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('TEST', 'MIN', 'MAX', 'MEAN', 'MAX_RSS')
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)
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comparison_result = self.tc.increased[0]
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self.assertEquals(
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ReportFormatter.header_for(comparison_result),
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('TEST', 'OLD', 'NEW', 'DELTA', 'SPEEDUP')
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)
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self.assert_markdown_contains([
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'TEST | OLD | NEW | DELTA | SPEEDUP',
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'--- | --- | --- | --- | --- ',
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'TEST | MIN | MAX | MEAN | MAX_RSS'])
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self.assert_git_contains([
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'TEST OLD NEW DELTA SPEEDUP',
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'TEST MIN MAX MEAN MAX_RSS'])
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self.assert_html_contains([
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"""
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<th align='left'>OLD</th>
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<th align='left'>NEW</th>
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<th align='left'>DELTA</th>
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<th align='left'>SPEEDUP</th>""",
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"""
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<th align='left'>MIN</th>
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<th align='left'>MAX</th>
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<th align='left'>MEAN</th>
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<th align='left'>MAX_RSS</th>"""])
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def test_emphasize_speedup(self):
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"""Emphasize speedup values for regressions and improvements"""
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# tests in No Changes don't have emphasized speedup
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self.assert_markdown_contains([
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'BitCount | 3 | 9 | +199.9% | **0.33x**',
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'ByteSwap | 4 | 0 | -100.0% | **4001.00x**',
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'AngryPhonebook | 10458 | 10458 | +0.0% | 1.00x ',
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'ArrayAppend | 23641 | 20000 | -15.4% | **1.18x (?)**'
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])
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self.assert_git_contains([
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'BitCount 3 9 +199.9% **0.33x**',
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'ByteSwap 4 0 -100.0% **4001.00x**',
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'AngryPhonebook 10458 10458 +0.0% 1.00x',
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'ArrayAppend 23641 20000 -15.4% **1.18x (?)**'
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])
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self.assert_html_contains([
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"""
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<tr>
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<td align='left'>BitCount</td>
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<td align='left'>3</td>
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<td align='left'>9</td>
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<td align='left'>+199.9%</td>
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<td align='left'><font color='red'>0.33x</font></td>
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</tr>""",
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"""
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<tr>
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<td align='left'>ByteSwap</td>
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<td align='left'>4</td>
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<td align='left'>0</td>
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<td align='left'>-100.0%</td>
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<td align='left'><font color='green'>4001.00x</font></td>
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</tr>""",
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"""
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<tr>
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<td align='left'>AngryPhonebook</td>
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<td align='left'>10458</td>
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<td align='left'>10458</td>
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<td align='left'>+0.0%</td>
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<td align='left'><font color='black'>1.00x</font></td>
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</tr>"""
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])
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def test_sections(self):
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"""Report is divided into sections with summaries."""
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self.assert_markdown_contains([
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"""<details open>
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<summary>Regression (1)</summary>""",
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"""<details >
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<summary>Improvement (2)</summary>""",
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"""<details >
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<summary>No Changes (2)</summary>""",
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"""<details open>
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<summary>Added (1)</summary>""",
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"""<details open>
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<summary>Removed (1)</summary>"""])
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self.assert_git_contains([
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'Regression (1): \n',
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'Improvement (2): \n',
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'No Changes (2): \n',
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'Added (1): \n',
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'Removed (1): \n'])
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self.assert_html_contains([
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"<th align='left'>Regression (1)</th>",
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"<th align='left'>Improvement (2)</th>",
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"<th align='left'>No Changes (2)</th>",
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"<th align='left'>Added (1)</th>",
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"<th align='left'>Removed (1)</th>"])
|
|
|
|
def test_report_only_changes(self):
|
|
"""Leave out tests without significant change."""
|
|
rf = ReportFormatter(self.tc, '', '', changes_only=True)
|
|
markdown, git, html = rf.markdown(), rf.git(), rf.html()
|
|
self.assertNotIn('No Changes', markdown)
|
|
self.assertNotIn('AngryPhonebook', markdown)
|
|
self.assertNotIn('No Changes', git)
|
|
self.assertNotIn('AngryPhonebook', git)
|
|
self.assertNotIn('No Changes', html)
|
|
self.assertNotIn('AngryPhonebook', html)
|
|
|
|
|
|
class Test_parse_args(unittest.TestCase):
|
|
required = ['--old-file', 'old.log', '--new-file', 'new.log']
|
|
|
|
def test_required_input_arguments(self):
|
|
with captured_output() as (_, err):
|
|
self.assertRaises(SystemExit, parse_args, [])
|
|
self.assertIn('usage: compare_perf_tests.py', err.getvalue())
|
|
|
|
args = parse_args(self.required)
|
|
self.assertEquals(args.old_file, 'old.log')
|
|
self.assertEquals(args.new_file, 'new.log')
|
|
|
|
def test_format_argument(self):
|
|
self.assertEquals(parse_args(self.required).format, 'markdown')
|
|
self.assertEquals(
|
|
parse_args(self.required + ['--format', 'markdown']).format,
|
|
'markdown')
|
|
self.assertEquals(
|
|
parse_args(self.required + ['--format', 'git']).format, 'git')
|
|
self.assertEquals(
|
|
parse_args(self.required + ['--format', 'html']).format, 'html')
|
|
|
|
with captured_output() as (_, err):
|
|
self.assertRaises(SystemExit, parse_args,
|
|
self.required + ['--format', 'bogus'])
|
|
self.assertIn("error: argument --format: invalid choice: 'bogus' "
|
|
"(choose from 'markdown', 'git', 'html')",
|
|
err.getvalue())
|
|
|
|
def test_delta_threshold_argument(self):
|
|
# default value
|
|
args = parse_args(self.required)
|
|
self.assertEquals(args.delta_threshold, 0.05)
|
|
# float parsing
|
|
args = parse_args(self.required + ['--delta-threshold', '0.1'])
|
|
self.assertEquals(args.delta_threshold, 0.1)
|
|
args = parse_args(self.required + ['--delta-threshold', '1'])
|
|
self.assertEquals(args.delta_threshold, 1.0)
|
|
args = parse_args(self.required + ['--delta-threshold', '.2'])
|
|
self.assertEquals(args.delta_threshold, 0.2)
|
|
|
|
with captured_output() as (_, err):
|
|
self.assertRaises(SystemExit, parse_args,
|
|
self.required + ['--delta-threshold', '2,2'])
|
|
self.assertIn(" error: argument --delta-threshold: invalid float "
|
|
"value: '2,2'",
|
|
err.getvalue())
|
|
|
|
def test_output_argument(self):
|
|
self.assertEquals(parse_args(self.required).output, None)
|
|
self.assertEquals(parse_args(self.required +
|
|
['--output', 'report.log']).output,
|
|
'report.log')
|
|
|
|
def test_changes_only_argument(self):
|
|
self.assertFalse(parse_args(self.required).changes_only)
|
|
self.assertTrue(parse_args(self.required +
|
|
['--changes-only']).changes_only)
|
|
|
|
def test_branch_arguments(self):
|
|
# default value
|
|
args = parse_args(self.required)
|
|
self.assertEquals(args.new_branch, 'NEW_MIN')
|
|
self.assertEquals(args.old_branch, 'OLD_MIN')
|
|
# user specified
|
|
args = parse_args(
|
|
self.required + ['--old-branch', 'master',
|
|
'--new-branch', 'amazing-optimization'])
|
|
self.assertEquals(args.old_branch, 'master')
|
|
self.assertEquals(args.new_branch, 'amazing-optimization')
|
|
|
|
|
|
class Test_compare_perf_tests_main(OldAndNewLog, FileSystemIntegration):
|
|
"""Integration test that invokes the whole comparison script."""
|
|
markdown = [
|
|
'<summary>Regression (1)</summary>',
|
|
'TEST | OLD | NEW | DELTA | SPEEDUP',
|
|
'BitCount | 3 | 9 | +199.9% | **0.33x**',
|
|
]
|
|
git = [
|
|
'Regression (1):',
|
|
'TEST OLD NEW DELTA SPEEDUP',
|
|
'BitCount 3 9 +199.9% **0.33x**',
|
|
]
|
|
html = ['<html>', "<td align='left'>BitCount</td>"]
|
|
|
|
def setUp(self):
|
|
super(Test_compare_perf_tests_main, self).setUp()
|
|
self.old_log = self.write_temp_file('old.log', self.old_log_content)
|
|
self.new_log = self.write_temp_file('new.log', self.new_log_content)
|
|
|
|
def execute_main_with_format(self, report_format, test_output=False):
|
|
report_file = self.test_dir + 'report.log'
|
|
args = ['compare_perf_tests.py',
|
|
'--old-file', self.old_log,
|
|
'--new-file', self.new_log,
|
|
'--format', report_format]
|
|
|
|
sys.argv = (args if not test_output else
|
|
args + ['--output', report_file])
|
|
|
|
with captured_output() as (out, _):
|
|
main()
|
|
report_out = out.getvalue()
|
|
|
|
if test_output:
|
|
with open(report_file, 'r') as f:
|
|
report = f.read()
|
|
# because print adds newline, add one here, too:
|
|
report_file = str(report + '\n')
|
|
else:
|
|
report_file = None
|
|
|
|
return report_out, report_file
|
|
|
|
def test_markdown(self):
|
|
"""Writes Markdown formatted report to stdout"""
|
|
report_out, _ = self.execute_main_with_format('markdown')
|
|
self.assert_report_contains(self.markdown, report_out)
|
|
|
|
def test_markdown_output(self):
|
|
"""Writes Markdown formatted report to stdout and `--output` file."""
|
|
report_out, report_file = (
|
|
self.execute_main_with_format('markdown', test_output=True))
|
|
self.assertEquals(report_out, report_file)
|
|
self.assert_report_contains(self.markdown, report_file)
|
|
|
|
def test_git(self):
|
|
"""Writes Git formatted report to stdout."""
|
|
report_out, _ = self.execute_main_with_format('git')
|
|
self.assert_report_contains(self.git, report_out)
|
|
|
|
def test_git_output(self):
|
|
"""Writes Git formatted report to stdout and `--output` file."""
|
|
report_out, report_file = (
|
|
self.execute_main_with_format('git', test_output=True))
|
|
self.assertEquals(report_out, report_file)
|
|
self.assert_report_contains(self.git, report_file)
|
|
|
|
def test_html(self):
|
|
"""Writes HTML formatted report to stdout."""
|
|
report_out, _ = self.execute_main_with_format('html')
|
|
self.assert_report_contains(self.html, report_out)
|
|
|
|
def test_html_output(self):
|
|
"""Writes HTML formatted report to stdout and `--output` file."""
|
|
report_out, report_file = (
|
|
self.execute_main_with_format('html', test_output=True))
|
|
self.assertEquals(report_out, report_file)
|
|
self.assert_report_contains(self.html, report_file)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|