524 lines
19 KiB
Python
524 lines
19 KiB
Python
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#!/usr/bin/env python3
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# type: ignore
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"""
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compare.py - versatile benchmark output compare tool
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"""
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import argparse
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import json
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import os
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import sys
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import unittest
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from argparse import ArgumentParser
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import gbench
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from gbench import report, util
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def check_inputs(in1, in2, flags):
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"""
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Perform checking on the user provided inputs and diagnose any abnormalities
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"""
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in1_kind, in1_err = util.classify_input_file(in1)
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in2_kind, in2_err = util.classify_input_file(in2)
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output_file = util.find_benchmark_flag("--benchmark_out=", flags)
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output_type = util.find_benchmark_flag("--benchmark_out_format=", flags)
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if (
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in1_kind == util.IT_Executable
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and in2_kind == util.IT_Executable
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and output_file
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):
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print(
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(
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"WARNING: '--benchmark_out=%s' will be passed to both "
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"benchmarks causing it to be overwritten"
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)
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% output_file
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)
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if in1_kind == util.IT_JSON and in2_kind == util.IT_JSON:
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# When both sides are JSON the only supported flag is
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# --benchmark_filter=
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for flag in util.remove_benchmark_flags("--benchmark_filter=", flags):
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print(
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"WARNING: passing %s has no effect since both "
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"inputs are JSON" % flag
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)
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if output_type is not None and output_type != "json":
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print(
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(
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"ERROR: passing '--benchmark_out_format=%s' to 'compare.py`"
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" is not supported."
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)
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% output_type
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)
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sys.exit(1)
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def create_parser():
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parser = ArgumentParser(
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description="versatile benchmark output compare tool"
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)
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parser.add_argument(
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"-a",
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"--display_aggregates_only",
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dest="display_aggregates_only",
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action="store_true",
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help="If there are repetitions, by default, we display everything - the"
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" actual runs, and the aggregates computed. Sometimes, it is "
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"desirable to only view the aggregates. E.g. when there are a lot "
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"of repetitions. Do note that only the display is affected. "
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"Internally, all the actual runs are still used, e.g. for U test.",
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)
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parser.add_argument(
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"--no-color",
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dest="color",
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default=True,
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action="store_false",
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help="Do not use colors in the terminal output",
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)
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parser.add_argument(
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"-d",
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"--dump_to_json",
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dest="dump_to_json",
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help="Additionally, dump benchmark comparison output to this file in JSON format.",
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)
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utest = parser.add_argument_group()
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utest.add_argument(
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"--no-utest",
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dest="utest",
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default=True,
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action="store_false",
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help="The tool can do a two-tailed Mann-Whitney U test with the null hypothesis that it is equally likely that a randomly selected value from one sample will be less than or greater than a randomly selected value from a second sample.\nWARNING: requires **LARGE** (no less than {}) number of repetitions to be meaningful!\nThe test is being done by default, if at least {} repetitions were done.\nThis option can disable the U Test.".format(
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report.UTEST_OPTIMAL_REPETITIONS, report.UTEST_MIN_REPETITIONS
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),
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)
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alpha_default = 0.05
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utest.add_argument(
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"--alpha",
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dest="utest_alpha",
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default=alpha_default,
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type=float,
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help=(
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"significance level alpha. if the calculated p-value is below this value, then the result is said to be statistically significant and the null hypothesis is rejected.\n(default: %0.4f)"
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)
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% alpha_default,
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)
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subparsers = parser.add_subparsers(
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help="This tool has multiple modes of operation:", dest="mode"
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)
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parser_a = subparsers.add_parser(
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"benchmarks",
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help="The most simple use-case, compare all the output of these two benchmarks",
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)
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baseline = parser_a.add_argument_group("baseline", "The benchmark baseline")
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baseline.add_argument(
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"test_baseline",
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metavar="test_baseline",
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type=argparse.FileType("r"),
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nargs=1,
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help="A benchmark executable or JSON output file",
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)
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contender = parser_a.add_argument_group(
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"contender", "The benchmark that will be compared against the baseline"
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)
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contender.add_argument(
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"test_contender",
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metavar="test_contender",
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type=argparse.FileType("r"),
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nargs=1,
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help="A benchmark executable or JSON output file",
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)
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parser_a.add_argument(
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"benchmark_options",
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metavar="benchmark_options",
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nargs=argparse.REMAINDER,
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help="Arguments to pass when running benchmark executables",
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)
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parser_b = subparsers.add_parser(
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"filters", help="Compare filter one with the filter two of benchmark"
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)
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baseline = parser_b.add_argument_group("baseline", "The benchmark baseline")
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baseline.add_argument(
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"test",
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metavar="test",
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type=argparse.FileType("r"),
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nargs=1,
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help="A benchmark executable or JSON output file",
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)
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baseline.add_argument(
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"filter_baseline",
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metavar="filter_baseline",
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type=str,
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nargs=1,
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help="The first filter, that will be used as baseline",
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)
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contender = parser_b.add_argument_group(
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"contender", "The benchmark that will be compared against the baseline"
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)
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contender.add_argument(
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"filter_contender",
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metavar="filter_contender",
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type=str,
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nargs=1,
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help="The second filter, that will be compared against the baseline",
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)
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parser_b.add_argument(
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"benchmark_options",
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metavar="benchmark_options",
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nargs=argparse.REMAINDER,
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help="Arguments to pass when running benchmark executables",
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)
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parser_c = subparsers.add_parser(
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"benchmarksfiltered",
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help="Compare filter one of first benchmark with filter two of the second benchmark",
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)
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baseline = parser_c.add_argument_group("baseline", "The benchmark baseline")
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baseline.add_argument(
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"test_baseline",
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metavar="test_baseline",
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type=argparse.FileType("r"),
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nargs=1,
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help="A benchmark executable or JSON output file",
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)
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baseline.add_argument(
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"filter_baseline",
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metavar="filter_baseline",
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type=str,
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nargs=1,
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help="The first filter, that will be used as baseline",
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)
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contender = parser_c.add_argument_group(
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"contender", "The benchmark that will be compared against the baseline"
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)
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contender.add_argument(
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"test_contender",
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metavar="test_contender",
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type=argparse.FileType("r"),
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nargs=1,
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help="The second benchmark executable or JSON output file, that will be compared against the baseline",
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)
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contender.add_argument(
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"filter_contender",
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metavar="filter_contender",
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type=str,
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nargs=1,
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help="The second filter, that will be compared against the baseline",
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)
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parser_c.add_argument(
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"benchmark_options",
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metavar="benchmark_options",
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nargs=argparse.REMAINDER,
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help="Arguments to pass when running benchmark executables",
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)
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return parser
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def main():
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# Parse the command line flags
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parser = create_parser()
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args, unknown_args = parser.parse_known_args()
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if args.mode is None:
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parser.print_help()
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exit(1)
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assert not unknown_args
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benchmark_options = args.benchmark_options
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if args.mode == "benchmarks":
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test_baseline = args.test_baseline[0].name
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test_contender = args.test_contender[0].name
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filter_baseline = ""
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filter_contender = ""
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# NOTE: if test_baseline == test_contender, you are analyzing the stdev
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description = "Comparing %s to %s" % (test_baseline, test_contender)
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elif args.mode == "filters":
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test_baseline = args.test[0].name
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test_contender = args.test[0].name
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filter_baseline = args.filter_baseline[0]
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filter_contender = args.filter_contender[0]
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# NOTE: if filter_baseline == filter_contender, you are analyzing the
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# stdev
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description = "Comparing %s to %s (from %s)" % (
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filter_baseline,
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filter_contender,
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args.test[0].name,
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)
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elif args.mode == "benchmarksfiltered":
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test_baseline = args.test_baseline[0].name
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test_contender = args.test_contender[0].name
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filter_baseline = args.filter_baseline[0]
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filter_contender = args.filter_contender[0]
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# NOTE: if test_baseline == test_contender and
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# filter_baseline == filter_contender, you are analyzing the stdev
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description = "Comparing %s (from %s) to %s (from %s)" % (
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filter_baseline,
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test_baseline,
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filter_contender,
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test_contender,
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)
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else:
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# should never happen
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print("Unrecognized mode of operation: '%s'" % args.mode)
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parser.print_help()
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exit(1)
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check_inputs(test_baseline, test_contender, benchmark_options)
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if args.display_aggregates_only:
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benchmark_options += ["--benchmark_display_aggregates_only=true"]
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options_baseline = []
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options_contender = []
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if filter_baseline and filter_contender:
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options_baseline = ["--benchmark_filter=%s" % filter_baseline]
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options_contender = ["--benchmark_filter=%s" % filter_contender]
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# Run the benchmarks and report the results
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json1 = json1_orig = gbench.util.sort_benchmark_results(
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gbench.util.run_or_load_benchmark(
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test_baseline, benchmark_options + options_baseline
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)
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)
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json2 = json2_orig = gbench.util.sort_benchmark_results(
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gbench.util.run_or_load_benchmark(
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test_contender, benchmark_options + options_contender
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)
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)
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# Now, filter the benchmarks so that the difference report can work
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if filter_baseline and filter_contender:
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replacement = "[%s vs. %s]" % (filter_baseline, filter_contender)
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json1 = gbench.report.filter_benchmark(
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json1_orig, filter_baseline, replacement
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)
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json2 = gbench.report.filter_benchmark(
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json2_orig, filter_contender, replacement
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)
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diff_report = gbench.report.get_difference_report(json1, json2, args.utest)
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output_lines = gbench.report.print_difference_report(
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diff_report,
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args.display_aggregates_only,
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args.utest,
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args.utest_alpha,
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args.color,
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)
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print(description)
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for ln in output_lines:
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print(ln)
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# Optionally, diff and output to JSON
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if args.dump_to_json is not None:
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with open(args.dump_to_json, "w") as f_json:
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json.dump(diff_report, f_json, indent=1)
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class TestParser(unittest.TestCase):
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def setUp(self):
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self.parser = create_parser()
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testInputs = os.path.join(
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os.path.dirname(os.path.realpath(__file__)), "gbench", "Inputs"
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)
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self.testInput0 = os.path.join(testInputs, "test1_run1.json")
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self.testInput1 = os.path.join(testInputs, "test1_run2.json")
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def test_benchmarks_basic(self):
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parsed = self.parser.parse_args(
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["benchmarks", self.testInput0, self.testInput1]
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)
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self.assertFalse(parsed.display_aggregates_only)
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self.assertTrue(parsed.utest)
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self.assertEqual(parsed.mode, "benchmarks")
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self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
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self.assertEqual(parsed.test_contender[0].name, self.testInput1)
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self.assertFalse(parsed.benchmark_options)
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def test_benchmarks_basic_without_utest(self):
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parsed = self.parser.parse_args(
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["--no-utest", "benchmarks", self.testInput0, self.testInput1]
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)
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self.assertFalse(parsed.display_aggregates_only)
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self.assertFalse(parsed.utest)
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self.assertEqual(parsed.utest_alpha, 0.05)
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self.assertEqual(parsed.mode, "benchmarks")
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self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
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self.assertEqual(parsed.test_contender[0].name, self.testInput1)
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self.assertFalse(parsed.benchmark_options)
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def test_benchmarks_basic_display_aggregates_only(self):
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parsed = self.parser.parse_args(
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["-a", "benchmarks", self.testInput0, self.testInput1]
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)
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self.assertTrue(parsed.display_aggregates_only)
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self.assertTrue(parsed.utest)
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self.assertEqual(parsed.mode, "benchmarks")
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self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
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||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertFalse(parsed.benchmark_options)
|
||
|
|
|
||
|
|
def test_benchmarks_basic_with_utest_alpha(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["--alpha=0.314", "benchmarks", self.testInput0, self.testInput1]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.utest_alpha, 0.314)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarks")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertFalse(parsed.benchmark_options)
|
||
|
|
|
||
|
|
def test_benchmarks_basic_without_utest_with_utest_alpha(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
[
|
||
|
|
"--no-utest",
|
||
|
|
"--alpha=0.314",
|
||
|
|
"benchmarks",
|
||
|
|
self.testInput0,
|
||
|
|
self.testInput1,
|
||
|
|
]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertFalse(parsed.utest)
|
||
|
|
self.assertEqual(parsed.utest_alpha, 0.314)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarks")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertFalse(parsed.benchmark_options)
|
||
|
|
|
||
|
|
def test_benchmarks_with_remainder(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["benchmarks", self.testInput0, self.testInput1, "d"]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarks")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertEqual(parsed.benchmark_options, ["d"])
|
||
|
|
|
||
|
|
def test_benchmarks_with_remainder_after_doubleminus(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["benchmarks", self.testInput0, self.testInput1, "--", "e"]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarks")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertEqual(parsed.benchmark_options, ["e"])
|
||
|
|
|
||
|
|
def test_filters_basic(self):
|
||
|
|
parsed = self.parser.parse_args(["filters", self.testInput0, "c", "d"])
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "filters")
|
||
|
|
self.assertEqual(parsed.test[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "d")
|
||
|
|
self.assertFalse(parsed.benchmark_options)
|
||
|
|
|
||
|
|
def test_filters_with_remainder(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["filters", self.testInput0, "c", "d", "e"]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "filters")
|
||
|
|
self.assertEqual(parsed.test[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "d")
|
||
|
|
self.assertEqual(parsed.benchmark_options, ["e"])
|
||
|
|
|
||
|
|
def test_filters_with_remainder_after_doubleminus(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["filters", self.testInput0, "c", "d", "--", "f"]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "filters")
|
||
|
|
self.assertEqual(parsed.test[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "d")
|
||
|
|
self.assertEqual(parsed.benchmark_options, ["f"])
|
||
|
|
|
||
|
|
def test_benchmarksfiltered_basic(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
["benchmarksfiltered", self.testInput0, "c", self.testInput1, "e"]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarksfiltered")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "e")
|
||
|
|
self.assertFalse(parsed.benchmark_options)
|
||
|
|
|
||
|
|
def test_benchmarksfiltered_with_remainder(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
[
|
||
|
|
"benchmarksfiltered",
|
||
|
|
self.testInput0,
|
||
|
|
"c",
|
||
|
|
self.testInput1,
|
||
|
|
"e",
|
||
|
|
"f",
|
||
|
|
]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarksfiltered")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "e")
|
||
|
|
self.assertEqual(parsed.benchmark_options[0], "f")
|
||
|
|
|
||
|
|
def test_benchmarksfiltered_with_remainder_after_doubleminus(self):
|
||
|
|
parsed = self.parser.parse_args(
|
||
|
|
[
|
||
|
|
"benchmarksfiltered",
|
||
|
|
self.testInput0,
|
||
|
|
"c",
|
||
|
|
self.testInput1,
|
||
|
|
"e",
|
||
|
|
"--",
|
||
|
|
"g",
|
||
|
|
]
|
||
|
|
)
|
||
|
|
self.assertFalse(parsed.display_aggregates_only)
|
||
|
|
self.assertTrue(parsed.utest)
|
||
|
|
self.assertEqual(parsed.mode, "benchmarksfiltered")
|
||
|
|
self.assertEqual(parsed.test_baseline[0].name, self.testInput0)
|
||
|
|
self.assertEqual(parsed.filter_baseline[0], "c")
|
||
|
|
self.assertEqual(parsed.test_contender[0].name, self.testInput1)
|
||
|
|
self.assertEqual(parsed.filter_contender[0], "e")
|
||
|
|
self.assertEqual(parsed.benchmark_options[0], "g")
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
# unittest.main()
|
||
|
|
main()
|
||
|
|
|
||
|
|
# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
|
||
|
|
# kate: tab-width: 4; replace-tabs on; indent-width 4; tab-indents: off;
|
||
|
|
# kate: indent-mode python; remove-trailing-spaces modified;
|