catch2/tools/scripts/approvalTests.py

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#!/usr/bin/env python
from __future__ import print_function
import io
import os
import sys
import subprocess
import re
import difflib
import scriptCommon
from scriptCommon import catchPath
if os.name == 'nt':
# Enable console colours on windows
os.system('')
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rootPath = os.path.join(catchPath, 'tests/SelfTest/Baselines')
langFilenameParser = re.compile(r'(.+\.[ch]pp)')
filelocParser = re.compile(r'''
.*/
(.+\.[ch]pp) # filename
(?::|\() # : is starting separator between filename and line number on Linux, ( on Windows
([0-9]*) # line number
\)? # Windows also has an ending separator, )
''', re.VERBOSE)
lineNumberParser = re.compile(r' line="[0-9]*"')
hexParser = re.compile(r'\b(0[xX][0-9a-fA-F]+)\b')
durationsParser = re.compile(r' time="[0-9]*\.[0-9]*"')
sonarqubeDurationParser = re.compile(r''' duration=["'][0-9]+["']''')
timestampsParser = re.compile(r'\d{4}-\d{2}-\d{2}T\d{2}\:\d{2}\:\d{2}Z')
versionParser = re.compile(r'Catch v[0-9]+\.[0-9]+\.[0-9]+(-\w*\.[0-9]+)?')
nullParser = re.compile(r'\b(__null|nullptr)\b')
exeNameParser = re.compile(r'''
\b
(CatchSelfTest|SelfTest) # Expected executable name
(?:.exe)? # Executable name contains .exe on Windows.
\b
''', re.VERBOSE)
# This is a hack until something more reasonable is figured out
specialCaseParser = re.compile(r'file\((\d+)\)')
# errno macro expands into various names depending on platform, so we need to fix them up as well
errnoParser = re.compile(r'''
\(\*__errno_location\ \(\)\)
|
\(\*__error\(\)\)
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|
\(\*_errno\(\)\)
''', re.VERBOSE)
sinceEpochParser = re.compile(r'\d+ .+ since epoch')
infParser = re.compile(r'''
\(\(float\)\(1e\+300\ \*\ 1e\+300\)\) # MSVC INFINITY macro
|
\(__builtin_inff\(\)\) # Linux (ubuntu) INFINITY macro
|
\(__builtin_inff\ \(\)\) # Fedora INFINITY macro
|
__builtin_huge_valf\(\) # OSX macro
''', re.VERBOSE)
nanParser = re.compile(r'''
\(\(float\)\(\(\(float\)\(1e\+300\ \*\ 1e\+300\)\)\ \*\ 0\.0F\)\) # MSVC NAN macro
|
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\(\(float\)\(INFINITY\ \*\ 0\.0F\)\) # Yet another MSVC NAN macro
|
\(__builtin_nanf\ \(""\)\) # Linux (ubuntu) NAN macro
|
__builtin_nanf\("0x<hex\ digits>"\) # The weird content of the brackets is there because a different parser has already ran before this one
''', re.VERBOSE)
# The weird OR is there to always have at least empty string for group 1
tapTestNumParser = re.compile(r'^(not |)?ok (\d+) -')
if len(sys.argv) == 2:
cmdPath = sys.argv[1]
else:
cmdPath = os.path.join(catchPath, scriptCommon.getBuildExecutable())
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overallResult = 0
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def diffFiles(fileA, fileB):
with io.open(fileA, 'r', encoding='utf-8', errors='surrogateescape') as file:
aLines = [line.rstrip() for line in file.readlines()]
with io.open(fileB, 'r', encoding='utf-8', errors='surrogateescape') as file:
bLines = [line.rstrip() for line in file.readlines()]
shortenedFilenameA = fileA.rsplit(os.sep, 1)[-1]
shortenedFilenameB = fileB.rsplit(os.sep, 1)[-1]
diff = difflib.unified_diff(aLines, bLines, fromfile=shortenedFilenameA, tofile=shortenedFilenameB, n=0)
return [line for line in diff if line[0] in ('+', '-')]
def normalizeFilepath(line):
if catchPath in line:
# make paths relative to Catch root
line = line.replace(catchPath + os.sep, '')
m = langFilenameParser.match(line)
if m:
filepath = m.group(0)
# go from \ in windows paths to /
filepath = filepath.replace('\\', '/')
# remove start of relative path
filepath = filepath.replace('../', '')
line = line[:m.start()] + filepath + line[m.end():]
return line
def filterLine(line, isCompact):
line = normalizeFilepath(line)
# strip source line numbers
m = filelocParser.match(line)
if m:
# note that this also strips directories, leaving only the filename
filename, lnum = m.groups()
lnum = ":<line number>" if lnum else ""
line = filename + lnum + line[m.end():]
else:
line = lineNumberParser.sub(" ", line)
if isCompact:
line = line.replace(': FAILED', ': failed')
line = line.replace(': PASSED', ': passed')
# strip out the test order number in TAP to avoid massive diffs for every change
line = tapTestNumParser.sub("\g<1>ok {test-number} -", line)
# strip Catch version number
line = versionParser.sub("<version>", line)
# replace *null* with 0
line = nullParser.sub("0", line)
# strip executable name
line = exeNameParser.sub("<exe-name>", line)
# strip hexadecimal numbers (presumably pointer values)
line = hexParser.sub("0x<hex digits>", line)
# strip durations and timestamps
line = durationsParser.sub(' time="{duration}"', line)
line = sonarqubeDurationParser.sub(' duration="{duration}"', line)
line = timestampsParser.sub('{iso8601-timestamp}', line)
line = specialCaseParser.sub('file:\g<1>', line)
line = errnoParser.sub('errno', line)
line = sinceEpochParser.sub('{since-epoch-report}', line)
line = infParser.sub('INFINITY', line)
line = nanParser.sub('NAN', line)
return line
def approve(baseName, args):
global overallResult
args[0:0] = [cmdPath]
if not os.path.exists(cmdPath):
raise Exception("Executable doesn't exist at " + cmdPath)
baselinesPath = os.path.join(rootPath, '{0}.approved.txt'.format(baseName))
rawResultsPath = os.path.join(rootPath, '_{0}.tmp'.format(baseName))
filteredResultsPath = os.path.join(rootPath, '{0}.unapproved.txt'.format(baseName))
f = open(rawResultsPath, 'w')
subprocess.call(args, stdout=f, stderr=f)
f.close()
rawFile = io.open(rawResultsPath, 'r', encoding='utf-8', errors='surrogateescape')
filteredFile = io.open(filteredResultsPath, 'w', encoding='utf-8', errors='surrogateescape')
for line in rawFile:
filteredFile.write(filterLine(line, 'compact' in baseName).rstrip() + "\n")
filteredFile.close()
rawFile.close()
os.remove(rawResultsPath)
print()
print(baseName + ":")
if os.path.exists(baselinesPath):
diffResult = diffFiles(baselinesPath, filteredResultsPath)
if diffResult:
print('\n'.join(diffResult))
print(" \n****************************\n \033[91mResults differed")
if len(diffResult) > overallResult:
overallResult = len(diffResult)
else:
os.remove(filteredResultsPath)
print(" \033[92mResults matched")
print("\033[0m")
else:
print(" first approval")
if overallResult == 0:
overallResult = 1
print("Running approvals against executable:")
print(" " + cmdPath)
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## special cases first:
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# Standard console reporter
approve("console.std", ["~[!nonportable]~[!benchmark]~[approvals] *", "--order", "lex", "--rng-seed", "1"])
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# console reporter, include passes, warn about No Assertions, limit failures to first 4
approve("console.swa4", ["~[!nonportable]~[!benchmark]~[approvals] *", "-s", "-w", "NoAssertions", "-x", "4", "--order", "lex", "--rng-seed", "1"])
## Common reporter checks: include passes, warn about No Assertions
reporters = ('console', 'junit', 'xml', 'compact', 'sonarqube', 'tap', 'teamcity', 'automake')
for reporter in reporters:
filename = '{}.sw'.format(reporter)
common_args = ["~[!nonportable]~[!benchmark]~[approvals] *", "-s", "-w", "NoAssertions", "--order", "lex", "--rng-seed", "1"]
reporter_args = ['-r', reporter]
approve(filename, common_args + reporter_args)
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if overallResult != 0:
print("If these differences are expected, run approve.py to approve new baselines.")
exit(overallResult)