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#!/usr/bin/env python3
# For help:
#
# - Run with no arguments.
# - Ask Everett Hildenbrandt (@ehildenb).
# Goals:
#
# - Validate test inputs with JSON Schemas.
# - Check that tests have been filled.
# - Filter tests based on properties.
# - Convert between various test filler formats.
# Non-goals:
#
# - Test filling.
# - Test post-state checking.
# Dependencies:
#
# - python-json
# - python-yaml
# - python-jsonschema
# - python-pysha3
import sys
import os
import json
import yaml
import jsonschema
import sha3
# Utilities
# =========
# Errors/Reporting
exit_status = 0
error_log = []
def _report(*msg):
print("== " + sys.argv[0] + ":", *msg, file=sys.stderr)
def _logerror(*msg):
global exit_status
_report("ERROR:", *msg)
error_log.append(" ".join(msg))
exit_status = 1
def _die(*msg, exit_code=1):
_report(*msg)
_report("exiting...")
sys.exit(exit_code)
# Filesystem/parsing
def readFile(fname):
if not os.path.isfile(fname):
_die("Not a file:", fname)
with open(fname, "r") as f:
fcontents = f.read()
try:
if fname.endswith(".json"):
fparsed = json.loads(fcontents)
elif fname.endswith(".yml"):
fparsed = yaml.load(fcontents)
else:
_die("Do not know how to load:", fname)
return fparsed
except:
_die("Could not load file:", fname)
def writeFile(fname, fcontents):
if not os.path.exists(os.path.dirname(fname)):
os.makedirs(os.path.dirname(fname))
with open(fname, "w") as f:
f.write(json.dumps(fcontents, indent=4, sort_keys=True) + "\n")
# Functionality
# =============
# Listing tests
def findTests(filePrefix=""):
return [ fullTest for fullTest in [ os.path.join(root, file) for root, _, files in os.walk(".")
for file in files
if file.endswith(".json") or file.endswith(".yml")
]
if fullTest.startswith(filePrefix)
]
def listTests(filePrefixes=[""]):
return [ test for fPrefix in filePrefixes
for test in findTests(filePrefix=fPrefix)
]
# Schema Validation
def validateSchema(testFile, schemaFile):
testSchema = readFile(schemaFile)
defSchema = readFile("JSONSchema/definitions.json")
schema = { "definitions" : dict(defSchema["definitions"], **testSchema["definitions"])
, "patternProperties" : testSchema["patternProperties"]
}
testInput = readFile(testFile)
try:
jsonschema.validate(testInput, schema)
except:
_logerror("Validation failed:", "schema", schemaFile, "on", testFile)
def validateTestFile(testFile):
if testFile.startswith("./src/VMTestsFiller/"):
schemaFile = "JSONSchema/vm-filler-schema.json"
elif testFile.startswith("./src/GeneralStateTestsFiller/"):
schemaFile = "JSONSchema/st-filler-schema.json"
elif testFile.startswith("./src/BlockchainTestsFiller/"):
schemaFile = "JSONSchema/bc-filler-schema.json"
elif testFile.startswith("./VMTests/"):
schemaFile = "JSONSchema/vm-schema.json"
elif testFile.startswith("./GeneralStateTests/"):
schemaFile = "JSONSchema/st-schema.json"
elif testFile.startswith("./BlockchainTests/"):
schemaFile = "JSONSchema/bc-schema.json"
else:
_logerror("Do not know how to validate file:", testFile)
return
validateSchema(testFile, schemaFile)
# Check tests filled
def hashFile(fname):
with open(fname ,"rb") as f:
k = sha3.keccak_256()
if fname.endswith(".json"):
s = json.dumps(json.load(f), sort_keys=True, separators=(',', ':'))
elif fname.endswith(".yml"):
s = json.dumps(yaml.load(f), sort_keys=True, separators=(',', ':'))
else:
_die("Do not know how to hash:", fname)
k.update(s.encode('utf-8'))
return k.hexdigest()
def checkFilled(jsonFile):
jsonTest = readFile(jsonFile)
if not ( jsonFile.startswith("./src/BlockchainTestsFiller/GeneralStateTests/")
# or jsonFile.startswith("./src/BlockchainTestsFiller/VMTests/")
or jsonFile.startswith("./VMTests/")
or jsonFile.startswith("./GeneralStateTests/")
or jsonFile.startswith("./TransactionTests/")
or jsonFile.startswith("./BlockchainTests/")
):
# _report("Not a file that is filled:", jsonFile)
return
for test in jsonTest:
if "_info" in jsonTest[test]:
fillerSource = jsonTest[test]["_info"]["source"]
fillerHash = jsonTest[test]["_info"]["sourceHash"]
if fillerHash != hashFile(fillerSource):
_logerror("Filler hash is different:", jsonFile)
# Main
# ====
def _usage():
usage_lines = [ ""
, " usage: " + sys.argv[0] + " [list|format|validate] [<TEST_FILE_PREFIX>*]"
, " where:"
, " list: command to list the matching tests."
, " format: command to format/sort the JSON/YAML file."
, " validate: command to check a file against the associated JSON schema (defaults to all files)."
, " <TEST_FILE_PREFIX>: file path prefix to search for tests with."
, " eg. './src/VMTestsFiller' './VMTests' for all VMTests and their fillers."
]
_die("\n".join(usage_lines))
def main():
if len(sys.argv) < 2:
_usage()
test_command = sys.argv[1]
if len(sys.argv) == 2:
testList = listTests()
else:
testList = listTests(filePrefixes=sys.argv[2:])
if len(testList) == 0:
_die("No tests listed!!!")
if test_command == "list":
testDo = lambda t: print(t)
elif test_command == "format":
testDo = lambda t: writeFile(t, readFile(t))
elif test_command == "validate":
testDo = validateTestFile
elif test_command == "checkFilled":
testDo = checkFilled
else:
_usage()
for test in testList:
# turn on for more info
# _report(test_command + ":", test)
testDo(test)
if exit_status != 0:
_die("Errors reported!\n[ERROR] " + "\n[ERROR] ".join(error_log))
if __name__ == "__main__":
main()
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