mirror of
https://github.com/catchorg/Catch2.git
synced 2024-12-29 06:03:30 +01:00
149 lines
4.5 KiB
Python
Executable File
149 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
from __future__ import print_function
|
|
|
|
import time, subprocess, sys, os, shutil, glob, random
|
|
import argparse
|
|
|
|
def median(lst):
|
|
lst = sorted(lst)
|
|
mid, odd = divmod(len(lst), 2)
|
|
if odd:
|
|
return lst[mid]
|
|
else:
|
|
return (lst[mid - 1] + lst[mid]) / 2.0
|
|
|
|
def mean(lst):
|
|
return float(sum(lst)) / max(len(lst), 1)
|
|
|
|
compiler_path = ''
|
|
flags = []
|
|
|
|
main_file = r'''
|
|
#define CATCH_CONFIG_MAIN
|
|
#include "catch.hpp"
|
|
'''
|
|
main_name = 'catch-main.cpp'
|
|
|
|
dir_name = 'benchmark-dir'
|
|
|
|
files = 20
|
|
test_cases_in_file = 20
|
|
sections_in_file = 4
|
|
assertions_per_section = 5
|
|
|
|
checks = [
|
|
'a != b', 'a != c', 'a != d', 'a != e', 'b != c', 'b != d', 'b != e', 'c != d', 'c != e', 'd != e', 'a + a == a',
|
|
'a + b == b', 'a + c == c', 'a + d == d', 'a + e == e', 'b + a == b', 'b + b == c', 'b + c == d',
|
|
'b + d == e', 'c + a == c', 'c + b == d', 'c + c == e', 'd + a == d', 'd + b == e', 'e + a == e',
|
|
'a + a + a == a', 'b + c == a + d', 'c + a + a == a + b + b + a',
|
|
'a < b', 'b < c', 'c < d', 'd < e', 'a >= a', 'd >= b',
|
|
]
|
|
|
|
def create_temp_dir():
|
|
if os.path.exists(dir_name):
|
|
shutil.rmtree(dir_name)
|
|
os.mkdir(dir_name)
|
|
|
|
def copy_catch(path_to_catch):
|
|
shutil.copy(path_to_catch, dir_name)
|
|
|
|
def create_catch_main():
|
|
with open(main_name, 'w') as f:
|
|
f.write(main_file)
|
|
|
|
def compile_main():
|
|
start_t = time.time()
|
|
subprocess.check_call([compiler_path, main_name, '-c'] + flags)
|
|
end_t = time.time()
|
|
return end_t - start_t
|
|
|
|
def compile_files():
|
|
cpp_files = glob.glob('tests*.cpp')
|
|
start_t = time.time()
|
|
subprocess.check_call([compiler_path, '-c'] + flags + cpp_files)
|
|
end_t = time.time()
|
|
return end_t - start_t
|
|
|
|
def link_files():
|
|
obj_files = glob.glob('*.o')
|
|
start_t = time.time()
|
|
subprocess.check_call([compiler_path] + flags + obj_files)
|
|
end_t = time.time()
|
|
return end_t - start_t
|
|
|
|
def benchmark(func):
|
|
results = [func() for i in range(10)]
|
|
return mean(results), median(results)
|
|
|
|
def char_range(start, end):
|
|
for c in range(ord(start), ord(end)):
|
|
yield chr(c)
|
|
|
|
def generate_sections(fd):
|
|
for i in range(sections_in_file):
|
|
fd.write(' SECTION("Section {}") {{\n'.format(i))
|
|
fd.write('\n'.join(' CHECK({});'.format(check) for check in random.sample(checks, assertions_per_section)))
|
|
fd.write(' }\n')
|
|
|
|
|
|
def generate_file(file_no):
|
|
with open('tests{}.cpp'.format(file_no), 'w') as f:
|
|
f.write('#include "catch.hpp"\n\n')
|
|
for i in range(test_cases_in_file):
|
|
f.write('TEST_CASE("File {} test {}", "[.compile]"){{\n'.format(file_no, i))
|
|
for i, c in enumerate(char_range('a', 'f')):
|
|
f.write(' int {} = {};\n'.format(c, i))
|
|
generate_sections(f)
|
|
f.write('}\n\n')
|
|
|
|
|
|
def generate_files():
|
|
create_catch_main()
|
|
for i in range(files):
|
|
generate_file(i)
|
|
|
|
|
|
options = ['all', 'main', 'files', 'link']
|
|
|
|
parser = argparse.ArgumentParser(description='Benchmarks Catch\'s compile times against some synthetic tests')
|
|
# Add first arg -- benchmark type
|
|
parser.add_argument('benchmark_kind', nargs='?', default='all', choices=options, help='What kind of benchmark to run, default: all')
|
|
|
|
# Args to allow changing header/compiler
|
|
parser.add_argument('-I', '--catch-header', default='catch.hpp', help = 'Path to catch.hpp, default: catch.hpp')
|
|
parser.add_argument('-c', '--compiler', default='g++', help = 'Compiler to use, default: g++')
|
|
|
|
parser.add_argument('-f', '--flags', help = 'Flags to be passed to the compiler. Pass as "," separated list')
|
|
|
|
# Allow creating files only, without running the whole thing
|
|
parser.add_argument('-g', '--generate-files', action='store_true', help='Generate test files and quit')
|
|
|
|
args = parser.parse_args()
|
|
|
|
compiler_path = args.compiler
|
|
catch_path = args.catch_header
|
|
|
|
if args.generate_files:
|
|
create_temp_dir()
|
|
copy_catch(catch_path)
|
|
os.chdir(dir_name)
|
|
# now create the fake test files
|
|
generate_files()
|
|
# Early exit
|
|
print('Finished generating files')
|
|
exit(1)
|
|
|
|
os.chdir(dir_name)
|
|
|
|
if args.flags:
|
|
flags = args.flags.split(',')
|
|
|
|
print('Time needed for ...')
|
|
if args.benchmark_kind in ('all', 'main'):
|
|
print(' ... compiling main, mean: {:.2f}, median: {:.2f} s'.format(*benchmark(compile_main)))
|
|
if args.benchmark_kind in ('all', 'files'):
|
|
print(' ... compiling test files, mean: {:.2f}, median: {:.2f} s'.format(*benchmark(compile_files)))
|
|
if args.benchmark_kind in ('all', 'link'):
|
|
print(' ... linking everything, mean: {:.2f}, median: {:.2f} s'.format(*benchmark(link_files)))
|