solidity/scripts/isolate_tests.py

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#!/usr/bin/env python2
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#
# This script reads C++ or RST source files and writes all
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# multi-line strings into individual files.
# This can be used to extract the Solidity test cases
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# into files for e.g. fuzz testing as
# scripts/isolate_tests.py test/libsolidity/*
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import sys
import re
import os
import hashlib
from os.path import join, isfile
def extract_test_cases(path):
lines = open(path, 'rb').read().splitlines()
inside = False
delimiter = ''
tests = []
for l in lines:
if inside:
if l.strip().endswith(')' + delimiter + '";'):
inside = False
else:
tests[-1] += l + '\n'
else:
m = re.search(r'R"([^(]*)\($', l.strip())
if m:
inside = True
delimiter = m.group(1)
tests += ['']
return tests
# Contract sources are indented by 4 spaces.
# Look for `pragma solidity`, `contract`, `library` or `interface`
# and abort a line not indented properly.
def extract_docs_cases(path):
inside = False
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extractedLines = []
tests = []
# Collect all snippets of indented blocks
for l in open(path, 'rb').read().splitlines():
if l != '':
if not inside and l.startswith(' '):
# start new test
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extractedLines += ['']
inside = l.startswith(' ')
if inside:
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extractedLines[-1] += l + '\n'
codeStart = "(pragma solidity|contract.*{|library.*{|interface.*{)"
# Filter all tests that do not contain Solidity or are intended incorrectly.
for lines in extractedLines:
if re.search(r'^\s{0,3}' + codeStart, lines, re.MULTILINE):
print("Intendation error in " + path + ":")
print(lines)
exit(1)
if re.search(r'^\s{4}' + codeStart, lines, re.MULTILINE):
tests.append(lines)
return tests
def write_cases(f, tests):
cleaned_filename = f.replace(".","_").replace("-","_").replace(" ","_").lower()
for test in tests:
# When code examples are extracted they indented by 8 spaces, which violates the style guide,
# so before checking remove 4 spaces from each line.
remainder = re.sub(r'^ {4}', '', test, 0, re.MULTILINE)
open('test_%s_%s.sol' % (hashlib.sha256(test).hexdigest(), cleaned_filename), 'wb').write(remainder)
def extract_and_write(f, path):
if docs:
cases = extract_docs_cases(path)
else:
if f.endswith('.sol'):
cases = [open(path, 'r').read()]
else:
cases = extract_test_cases(path)
write_cases(f, cases)
if __name__ == '__main__':
path = sys.argv[1]
docs = False
if len(sys.argv) > 2 and sys.argv[2] == 'docs':
docs = True
if isfile(path):
extract_and_write(path, path)
else:
for root, subdirs, files in os.walk(path):
if '_build' in subdirs:
subdirs.remove('_build')
if 'compilationTests' in subdirs:
subdirs.remove('compilationTests')
for f in files:
path = join(root, f)
extract_and_write(f, path)