def parse_validator(validator):
""" parse validator, validator maybe in two format
@param (dict) validator
format1: this is kept for compatiblity with the previous versions.
{"check": "status_code", "comparator": "eq", "expect": 201}
{"check": "$resp_body_success", "comparator": "eq", "expect": True}
format2: recommended new version
{'eq': ['status_code', 201]}
{'eq': ['$resp_body_success', True]}
@return (dict) validator info
{
"check": "status_code",
"expect": 201,
"comparator": "eq"
}
"""
if not isinstance(validator, dict):
raise exceptions.ParamsError("invalid validator: {}".format(validator))
if "check" in validator and len(validator) > 1:
# format1
check_item = validator.get("check")
if "expect" in validator:
expect_value = validator.get("expect")
elif "expected" in validator:
expect_value = validator.get("expected")
else:
raise exceptions.ParamsError("invalid validator: {}".format(validator))
comparator = validator.get("comparator", "eq")
elif len(validator) == 1:
# format2
comparator = list(validator.keys())[0]
compare_values = validator[comparator]
if not isinstance(compare_values, list) or len(compare_values) != 2:
raise exceptions.ParamsError("invalid validator: {}".format(validator))
check_item, expect_value = compare_values
else:
raise exceptions.ParamsError("invalid validator: {}".format(validator))
return {
"check": check_item,
"expect": expect_value,
"comparator": comparator
}
def run(self, path_or_testcases, dot_env_path=None, mapping=None):
""" main interface, run testcases with variables mapping.
Args:
path_or_testcases (str/list/dict): testcase file/foler path, or valid testcases.
dot_env_path (str): specified .env file path.
mapping (dict): if mapping is specified, it will override variables in config block.
Returns:
instance: HttpRunner() instance
"""
self.exception_stage = "load tests"
if validator.is_testcases(path_or_testcases):
if isinstance(path_or_testcases, dict):
testcases = [path_or_testcases]
else:
testcases = path_or_testcases
elif validator.is_testcase_path(path_or_testcases):
testcases = loader.load_tests(path_or_testcases, dot_env_path)
else:
raise exceptions.ParamsError("invalid testcase path or testcases.")
return self._run_tests(testcases, mapping)
def __getattr__(self, key):
try:
if key == "json":
value = self.resp_obj.json()
else:
value = getattr(self.resp_obj, key)
self.__dict__[key] = value
return value
except AttributeError:
err_msg = "ResponseObject does not have attribute: {}".format(key)
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
def _do_validation(self, validator_dict):
""" validate with functions
Args:
validator_dict (dict): validator dict
{
"check": "status_code",
"check_value": 200,
"expect": 201,
"comparator": "eq"
}
"""
# TODO: move comparator uniform to init_test_suites
comparator = utils.get_uniform_comparator(validator_dict["comparator"])
validate_func = parser.get_mapping_function(
comparator, self.TESTCASE_SHARED_FUNCTIONS_MAPPING)
check_item = validator_dict["check"]
check_value = validator_dict["check_value"]
expect_value = validator_dict["expect"]
if (check_value is None or expect_value is None) \
and comparator not in ["is", "eq", "equals", "=="]:
raise exceptions.ParamsError(
"Null value can only be compared with comparator: eq/equals/=="
)
validate_msg = "validate: {} {} {}({})".format(
check_item, comparator, expect_value,
type(expect_value).__name__)
try:
validator_dict["check_result"] = "pass"
validate_func(check_value, expect_value)
validate_msg += "\t==> pass"
logger.log_debug(validate_msg)
except (AssertionError, TypeError):
validate_msg += "\t==> fail"
validate_msg += "\n{}({}) {} {}({})".format(
check_value,
type(check_value).__name__, comparator, expect_value,
type(expect_value).__name__)
logger.log_error(validate_msg)
validator_dict["check_result"] = "fail"
raise exceptions.ValidationFailure(validate_msg)
def override_mapping_list(variables, new_mapping):
""" override variables with new mapping.
Args:
variables (list): variables list
[
{"var_a": 1},
{"var_b": "world"}
]
new_mapping (dict): overrided variables mapping
{
"var_a": "hello"
}
Returns:
OrderedDict: overrided variables mapping.
Examples:
>>> variables = [
{"var_a": 1},
{"var_b": "world"}
]
>>> new_mapping = {
"var_a": "hello"
}
>>> override_mapping_list(variables, new_mapping)
OrderedDict(
{
"var_a": "hello",
"var_b": "world"
}
)
"""
if isinstance(variables, list):
variables_ordered_dict = convert_mappinglist_to_orderdict(variables)
elif isinstance(variables, (OrderedDict, dict)):
variables_ordered_dict = variables
else:
raise exceptions.ParamsError("variables error!")
return update_ordered_dict(variables_ordered_dict, new_mapping)
def _get_block_by_name(ref_call, ref_type, project_mapping):
""" get test content by reference name.
Args:
ref_call (str): call function.
e.g. api_v1_Account_Login_POST($UserName, $Password)
ref_type (enum): "def-api" or "def-testcase"
project_mapping (dict): project_mapping
Returns:
dict: api/testcase definition.
Raises:
exceptions.ParamsError: call args number is not equal to defined args number.
"""
function_meta = parser.parse_function(ref_call)
func_name = function_meta["func_name"]
call_args = function_meta["args"]
block = _get_test_definition(func_name, ref_type, project_mapping)
def_args = block.get("function_meta", {}).get("args", [])
if len(call_args) != len(def_args):
err_msg = "{}: call args number is not equal to defined args number!\n".format(
func_name)
err_msg += "defined args: {}\n".format(def_args)
err_msg += "reference args: {}".format(call_args)
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
args_mapping = {}
for index, item in enumerate(def_args):
if call_args[index] == item:
continue
args_mapping[item] = call_args[index]
if args_mapping:
block = parser.substitute_variables(block, args_mapping)
return block
def extract_field(self, field):
""" extract value from requests.Response.
"""
if not isinstance(field, basestring):
err_msg = u"Invalid extractor! => {}\n".format(field)
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
msg = "extract: {}".format(field)
if text_extractor_regexp_compile.match(field):
value = self._extract_field_with_regex(field)
else:
value = self._extract_field_with_delimiter(field)
if is_py2 and isinstance(value, unicode):
value = value.encode("utf-8")
msg += "\t=> {}".format(value)
logger.log_debug(msg)
return value
def run_test(self, teststep_dict):
""" run single teststep.
Args:
teststep_dict (dict): teststep info
{
"name": "teststep description",
"skip": "skip this test unconditionally",
"times": 3,
"variables": [], # optional, override
"request": {
"url": "http://127.0.0.1:5000/api/users/1000",
"method": "POST",
"headers": {
"Content-Type": "application/json",
"authorization": "$authorization",
"random": "$random"
},
"body": '{"name": "user", "password": "******"}'
},
"extract": [], # optional
"validate": [], # optional
"setup_hooks": [], # optional
"teardown_hooks": [] # optional
}
Raises:
exceptions.ParamsError
exceptions.ValidationFailure
exceptions.ExtractFailure
"""
# check skip
self._handle_skip_feature(teststep_dict)
# prepare
extractors = teststep_dict.get("extract", []) or teststep_dict.get(
"extractors", [])
validators = teststep_dict.get("validate", []) or teststep_dict.get(
"validators", [])
parsed_request = self.init_test(teststep_dict, level="teststep")
self.context.update_teststep_variables_mapping("request",
parsed_request)
# setup hooks
setup_hooks = teststep_dict.get("setup_hooks", [])
setup_hooks.insert(0, "${setup_hook_prepare_kwargs($request)}")
self.do_hook_actions(setup_hooks)
try:
url = parsed_request.pop('url')
method = parsed_request.pop('method')
group_name = parsed_request.pop("group", None)
except KeyError:
raise exceptions.ParamsError("URL or METHOD missed!")
# TODO: move method validation to json schema
valid_methods = [
"GET", "HEAD", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"
]
if method.upper() not in valid_methods:
err_msg = u"Invalid HTTP method! => {}\n".format(method)
err_msg += "Available HTTP methods: {}".format(
"/".join(valid_methods))
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
logger.log_info("{method} {url}".format(method=method, url=url))
logger.log_debug(
"request kwargs(raw): {kwargs}".format(kwargs=parsed_request))
# request
resp = self.http_client_session.request(method,
url,
name=group_name,
**parsed_request)
resp_obj = response.ResponseObject(resp)
# teardown hooks
teardown_hooks = teststep_dict.get("teardown_hooks", [])
if teardown_hooks:
logger.log_info("start to run teardown hooks")
self.context.update_teststep_variables_mapping(
"response", resp_obj)
self.do_hook_actions(teardown_hooks)
# extract
extracted_variables_mapping = resp_obj.extract_response(extractors)
self.context.update_testcase_runtime_variables_mapping(
extracted_variables_mapping)
# validate
try:
self.evaluated_validators = self.context.validate(
validators, resp_obj)
except (exceptions.ParamsError, exceptions.ValidationFailure,
exceptions.ExtractFailure):
# log request
err_req_msg = "request: \n"
err_req_msg += "headers: {}\n".format(
parsed_request.pop("headers", {}))
for k, v in parsed_request.items():
err_req_msg += "{}: {}\n".format(k, repr(v))
logger.log_error(err_req_msg)
# log response
err_resp_msg = "response: \n"
err_resp_msg += "status_code: {}\n".format(resp_obj.status_code)
err_resp_msg += "headers: {}\n".format(resp_obj.headers)
err_resp_msg += "body: {}\n".format(repr(resp_obj.text))
logger.log_error(err_resp_msg)
raise
def _extract_field_with_delimiter(self, field):
""" response content could be json or html text.
@param (str) field should be string joined by delimiter.
e.g.
"status_code"
"headers"
"cookies"
"content"
"headers.content-type"
"content.person.name.first_name"
"""
# string.split(sep=None, maxsplit=-1) -> list of strings
# e.g. "content.person.name" => ["content", "person.name"]
try:
top_query, sub_query = field.split('.', 1)
except ValueError:
top_query = field
sub_query = None
# status_code
if top_query in ["status_code", "encoding", "ok", "reason", "url"]:
if sub_query:
# status_code.XX
err_msg = u"Failed to extract: {}\n".format(field)
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
return getattr(self, top_query)
# cookies
elif top_query == "cookies":
cookies = self.cookies.get_dict()
if not sub_query:
# extract cookies
return cookies
try:
return cookies[sub_query]
except KeyError:
err_msg = u"Failed to extract cookie! => {}\n".format(field)
err_msg += u"response cookies: {}\n".format(cookies)
logger.log_error(err_msg)
raise exceptions.ExtractFailure(err_msg)
# elapsed
elif top_query == "elapsed":
available_attributes = u"available attributes: days, seconds, microseconds, total_seconds"
if not sub_query:
err_msg = u"elapsed is datetime.timedelta instance, attribute should also be specified!\n"
err_msg += available_attributes
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
elif sub_query in ["days", "seconds", "microseconds"]:
return getattr(self.elapsed, sub_query)
elif sub_query == "total_seconds":
return self.elapsed.total_seconds()
else:
err_msg = "{} is not valid datetime.timedelta attribute.\n".format(sub_query)
err_msg += available_attributes
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
# headers
elif top_query == "headers":
headers = self.headers
if not sub_query:
# extract headers
return headers
try:
return headers[sub_query]
except KeyError:
err_msg = u"Failed to extract header! => {}\n".format(field)
err_msg += u"response headers: {}\n".format(headers)
logger.log_error(err_msg)
raise exceptions.ExtractFailure(err_msg)
# response body
elif top_query in ["content", "text", "json"]:
try:
body = self.json
except exceptions.JSONDecodeError:
body = self.text
if not sub_query:
# extract response body
return body
if isinstance(body, (dict, list)):
# content = {"xxx": 123}, content.xxx
return utils.query_json(body, sub_query)
elif sub_query.isdigit():
# content = "abcdefg", content.3 => d
return utils.query_json(body, sub_query)
else:
# content = "<html>abcdefg</html>", content.xxx
err_msg = u"Failed to extract attribute from response body! => {}\n".format(field)
err_msg += u"response body: {}\n".format(body)
logger.log_error(err_msg)
raise exceptions.ExtractFailure(err_msg)
# new set response attributes in teardown_hooks
elif top_query in self.__dict__:
attributes = self.__dict__[top_query]
if not sub_query:
# extract response attributes
return attributes
if isinstance(attributes, (dict, list)):
# attributes = {"xxx": 123}, content.xxx
return utils.query_json(attributes, sub_query)
elif sub_query.isdigit():
# attributes = "abcdefg", attributes.3 => d
return utils.query_json(attributes, sub_query)
else:
# content = "attributes.new_attribute_not_exist"
err_msg = u"Failed to extract cumstom set attribute from teardown hooks! => {}\n".format(field)
err_msg += u"response set attributes: {}\n".format(attributes)
logger.log_error(err_msg)
raise exceptions.TeardownHooksFailure(err_msg)
# others
else:
err_msg = u"Failed to extract attribute from response! => {}\n".format(field)
err_msg += u"available response attributes: status_code, cookies, elapsed, headers, content, text, json, encoding, ok, reason, url.\n\n"
err_msg += u"If you want to set attribute in teardown_hooks, take the following example as reference:\n"
err_msg += u"response.new_attribute = 'new_attribute_value'\n"
logger.log_error(err_msg)
raise exceptions.ParamsError(err_msg)
def parse_parameters(parameters, variables_mapping, functions_mapping):
""" parse parameters and generate cartesian product.
Args:
parameters (list) parameters: parameter name and value in list
parameter value may be in three types:
(1) data list, e.g. ["iOS/10.1", "iOS/10.2", "iOS/10.3"]
(2) call built-in parameterize function, "${parameterize(account.csv)}"
(3) call custom function in debugtalk.py, "${gen_app_version()}"
variables_mapping (dict): variables mapping loaded from debugtalk.py
functions_mapping (dict): functions mapping loaded from debugtalk.py
Returns:
list: cartesian product list
Examples:
>>> parameters = [
{"user_agent": ["iOS/10.1", "iOS/10.2", "iOS/10.3"]},
{"username-password": "******"},
{"app_version": "${gen_app_version()}"}
]
>>> parse_parameters(parameters)
"""
parsed_parameters_list = []
for parameter in parameters:
parameter_name, parameter_content = list(parameter.items())[0]
parameter_name_list = parameter_name.split("-")
if isinstance(parameter_content, list):
# (1) data list
# e.g. {"app_version": ["2.8.5", "2.8.6"]}
# => [{"app_version": "2.8.5", "app_version": "2.8.6"}]
# e.g. {"username-password": [["user1", "111111"], ["test2", "222222"]}
# => [{"username": "******", "password": "******"}, {"username": "******", "password": "******"}]
parameter_content_list = []
for parameter_item in parameter_content:
if not isinstance(parameter_item, (list, tuple)):
# "2.8.5" => ["2.8.5"]
parameter_item = [parameter_item]
# ["app_version"], ["2.8.5"] => {"app_version": "2.8.5"}
# ["username", "password"], ["user1", "111111"] => {"username": "******", "password": "******"}
parameter_content_dict = dict(zip(parameter_name_list, parameter_item))
parameter_content_list.append(parameter_content_dict)
else:
# (2) & (3)
parsed_parameter_content = parse_data(parameter_content, variables_mapping, functions_mapping)
# e.g. [{'app_version': '2.8.5'}, {'app_version': '2.8.6'}]
# e.g. [{"username": "******", "password": "******"}, {"username": "******", "password": "******"}]
if not isinstance(parsed_parameter_content, list):
raise exceptions.ParamsError("parameters syntax error!")
parameter_content_list = [
# get subset by parameter name
{key: parameter_item[key] for key in parameter_name_list}
for parameter_item in parsed_parameter_content
]
parsed_parameters_list.append(parameter_content_list)
return utils.gen_cartesian_product(*parsed_parameters_list)