Files
httprunner/httprunner/utils.py
2018-11-15 19:58:26 +08:00

457 lines
14 KiB
Python

# encoding: utf-8
import collections
import copy
import io
import itertools
import json
import os.path
import string
from datetime import datetime
from httprunner import exceptions, logger
from httprunner.compat import OrderedDict, basestring, is_py2
def set_os_environ(variables_mapping):
""" set variables mapping to os.environ
"""
for variable in variables_mapping:
os.environ[variable] = variables_mapping[variable]
logger.log_debug("Set OS environment variable: {}".format(variable))
def unset_os_environ(variables_mapping):
""" set variables mapping to os.environ
"""
for variable in variables_mapping:
os.environ.pop(variable)
logger.log_debug("Unset OS environment variable: {}".format(variable))
def query_json(json_content, query, delimiter='.'):
""" Do an xpath-like query with json_content.
@param (dict/list/string) json_content
json_content = {
"ids": [1, 2, 3, 4],
"person": {
"name": {
"first_name": "Leo",
"last_name": "Lee",
},
"age": 29,
"cities": ["Guangzhou", "Shenzhen"]
}
}
@param (str) query
"person.name.first_name" => "Leo"
"person.name.first_name.0" => "L"
"person.cities.0" => "Guangzhou"
@return queried result
"""
raise_flag = False
response_body = u"response body: {}\n".format(json_content)
try:
for key in query.split(delimiter):
if isinstance(json_content, (list, basestring)):
json_content = json_content[int(key)]
elif isinstance(json_content, dict):
json_content = json_content[key]
else:
logger.log_error(
"invalid type value: {}({})".format(json_content, type(json_content)))
raise_flag = True
except (KeyError, ValueError, IndexError):
raise_flag = True
if raise_flag:
err_msg = u"Failed to extract! => {}\n".format(query)
err_msg += response_body
logger.log_error(err_msg)
raise exceptions.ExtractFailure(err_msg)
return json_content
def get_uniform_comparator(comparator):
""" convert comparator alias to uniform name
"""
if comparator in ["eq", "equals", "==", "is"]:
return "equals"
elif comparator in ["lt", "less_than"]:
return "less_than"
elif comparator in ["le", "less_than_or_equals"]:
return "less_than_or_equals"
elif comparator in ["gt", "greater_than"]:
return "greater_than"
elif comparator in ["ge", "greater_than_or_equals"]:
return "greater_than_or_equals"
elif comparator in ["ne", "not_equals"]:
return "not_equals"
elif comparator in ["str_eq", "string_equals"]:
return "string_equals"
elif comparator in ["len_eq", "length_equals", "count_eq"]:
return "length_equals"
elif comparator in ["len_gt", "count_gt", "length_greater_than", "count_greater_than"]:
return "length_greater_than"
elif comparator in ["len_ge", "count_ge", "length_greater_than_or_equals", \
"count_greater_than_or_equals"]:
return "length_greater_than_or_equals"
elif comparator in ["len_lt", "count_lt", "length_less_than", "count_less_than"]:
return "length_less_than"
elif comparator in ["len_le", "count_le", "length_less_than_or_equals", \
"count_less_than_or_equals"]:
return "length_less_than_or_equals"
else:
return comparator
def deep_update_dict(origin_dict, override_dict):
""" update origin dict with override dict recursively
e.g. origin_dict = {'a': 1, 'b': {'c': 2, 'd': 4}}
override_dict = {'b': {'c': 3}}
return: {'a': 1, 'b': {'c': 3, 'd': 4}}
"""
if not override_dict:
return origin_dict
for key, val in override_dict.items():
if isinstance(val, dict):
tmp = deep_update_dict(origin_dict.get(key, {}), val)
origin_dict[key] = tmp
elif val is None:
# fix #64: when headers in test is None, it should inherit from config
continue
else:
origin_dict[key] = override_dict[key]
return origin_dict
def lower_dict_keys(origin_dict):
""" convert keys in dict to lower case
Args:
origin_dict (dict): mapping data structure
Returns:
dict: mapping with all keys lowered.
Examples:
>>> origin_dict = {
"Name": "",
"Request": "",
"URL": "",
"METHOD": "",
"Headers": "",
"Data": ""
}
>>> lower_dict_keys(origin_dict)
{
"name": "",
"request": "",
"url": "",
"method": "",
"headers": "",
"data": ""
}
"""
if not origin_dict or not isinstance(origin_dict, dict):
return origin_dict
return {
key.lower(): value
for key, value in origin_dict.items()
}
def lower_test_dict_keys(test_dict):
""" convert keys in test_dict to lower case, convertion will occur in two places:
1, all keys in test_dict;
2, all keys in test_dict["request"]
"""
# convert keys in test_dict
test_dict = lower_dict_keys(test_dict)
if "request" in test_dict:
# convert keys in test_dict["request"]
test_dict["request"] = lower_dict_keys(test_dict["request"])
return test_dict
def deepcopy_dict(data):
""" deepcopy dict data, ignore file object (_io.BufferedReader)
Args:
data (dict): dict data structure
{
'a': 1,
'b': [2, 4],
'c': lambda x: x+1,
'd': open('LICENSE'),
'f': {
'f1': {'a1': 2},
'f2': io.open('LICENSE', 'rb'),
}
}
Returns:
dict: deep copied dict data, with file object unchanged.
"""
try:
return copy.deepcopy(data)
except TypeError:
copied_data = {}
for key, value in data.items():
if isinstance(value, dict):
copied_data[key] = deepcopy_dict(value)
else:
try:
copied_data[key] = copy.deepcopy(value)
except TypeError:
copied_data[key] = value
return copied_data
def ensure_mapping_format(variables):
""" ensure variables are in mapping format.
Args:
variables (list/dict/OrderedDict): original variables
Returns:
OrderedDict: ensured variables in OrderedDict
Examples:
>>> variables = [
{"a": 1},
{"b": 2}
]
>>> print(ensure_mapping_format(variables))
OrderDict(
{
"a": 1,
"b": 2
}
)
"""
if isinstance(variables, list):
variables_ordered_dict = OrderedDict()
for map_dict in variables:
variables_ordered_dict.update(map_dict)
elif isinstance(variables, (OrderedDict, dict)):
variables_ordered_dict = variables
else:
raise exceptions.ParamsError("variables format error!")
return variables_ordered_dict
def get_testcase_io(testcase):
""" get testcase input(variables) and output.
Args:
testcase (unittest.suite.TestSuite): corresponding to one YAML/JSON file, it has been set two attributes:
config: parsed config block
runner: initialized runner.Runner() with config
Returns:
dict: input(variables) and output mapping.
"""
runner = testcase.runner
variables = testcase.config.get("variables", [])
output_list = testcase.config.get("output", [])
return {
"in": dict(variables),
"out": runner.extract_output(output_list)
}
def print_io(in_out):
""" print input(variables) and output.
Args:
in_out (dict): input(variables) and output mapping.
Examples:
>>> in_out = {
"in": {
"var_a": "hello",
"var_b": "world"
},
"out": {
"status_code": 500
}
}
>>> print_io(in_out)
================== Variables & Output ==================
Type | Variable : Value
------ | ---------------- : ---------------------------
Var | var_a : hello
Var | var_b : world
Out | status_code : 500
--------------------------------------------------------
"""
content_format = "{:<6} | {:<16} : {:<}\n"
content = "\n================== Variables & Output ==================\n"
content += content_format.format("Type", "Variable", "Value")
content += content_format.format("-" * 6, "-" * 16, "-" * 27)
def prepare_content(var_type, in_out):
content = ""
for variable, value in in_out.items():
if isinstance(value, (tuple, collections.deque)):
continue
elif isinstance(value, (dict, list)):
value = json.dumps(value)
if is_py2:
if isinstance(variable, unicode):
variable = variable.encode("utf-8")
if isinstance(value, unicode):
value = value.encode("utf-8")
content += content_format.format(var_type, variable, value)
return content
_in = in_out["in"]
_out = in_out["out"]
content += prepare_content("Var", _in)
content += "\n"
content += prepare_content("Out", _out)
content += "-" * 56 + "\n"
logger.log_debug(content)
def create_scaffold(project_name):
""" create scaffold with specified project name.
"""
if os.path.isdir(project_name):
logger.log_warning(u"Folder {} exists, please specify a new folder name.".format(project_name))
return
logger.color_print("Start to create new project: {}".format(project_name), "GREEN")
logger.color_print("CWD: {}\n".format(os.getcwd()), "BLUE")
def create_path(path, ptype):
if ptype == "folder":
os.makedirs(path)
elif ptype == "file":
open(path, 'w').close()
msg = "created {}: {}".format(ptype, path)
logger.color_print(msg, "BLUE")
path_list = [
(project_name, "folder"),
(os.path.join(project_name, "api"), "folder"),
(os.path.join(project_name, "testcases"), "folder"),
(os.path.join(project_name, "testsuites"), "folder"),
(os.path.join(project_name, "reports"), "folder"),
(os.path.join(project_name, "debugtalk.py"), "file"),
(os.path.join(project_name, ".env"), "file")
]
[create_path(p[0], p[1]) for p in path_list]
def gen_cartesian_product(*args):
""" generate cartesian product for lists
@param
(list) args
[{"a": 1}, {"a": 2}],
[
{"x": 111, "y": 112},
{"x": 121, "y": 122}
]
@return
cartesian product in list
[
{'a': 1, 'x': 111, 'y': 112},
{'a': 1, 'x': 121, 'y': 122},
{'a': 2, 'x': 111, 'y': 112},
{'a': 2, 'x': 121, 'y': 122}
]
"""
if not args:
return []
elif len(args) == 1:
return args[0]
product_list = []
for product_item_tuple in itertools.product(*args):
product_item_dict = {}
for item in product_item_tuple:
product_item_dict.update(item)
product_list.append(product_item_dict)
return product_list
def validate_json_file(file_list):
""" validate JSON testcase format
"""
for json_file in set(file_list):
if not json_file.endswith(".json"):
logger.log_warning("Only JSON file format can be validated, skip: {}".format(json_file))
continue
logger.color_print("Start to validate JSON file: {}".format(json_file), "GREEN")
with io.open(json_file) as stream:
try:
json.load(stream)
except ValueError as e:
raise SystemExit(e)
print("OK")
def prettify_json_file(file_list):
""" prettify JSON testcase format
"""
for json_file in set(file_list):
if not json_file.endswith(".json"):
logger.log_warning("Only JSON file format can be prettified, skip: {}".format(json_file))
continue
logger.color_print("Start to prettify JSON file: {}".format(json_file), "GREEN")
dir_path = os.path.dirname(json_file)
file_name, file_suffix = os.path.splitext(os.path.basename(json_file))
outfile = os.path.join(dir_path, "{}.pretty.json".format(file_name))
with io.open(json_file, 'r', encoding='utf-8') as stream:
try:
obj = json.load(stream)
except ValueError as e:
raise SystemExit(e)
with io.open(outfile, 'w', encoding='utf-8') as out:
json.dump(obj, out, indent=4, separators=(',', ': '))
out.write('\n')
print("success: {}".format(outfile))
def get_python2_retire_msg():
retire_day = datetime(2020, 1, 1)
today = datetime.now()
left_days = (retire_day - today).days
if left_days > 0:
retire_msg = "Python 2 will retire in {} days, why not move to Python 3?".format(left_days)
else:
retire_msg = "Python 2 has been retired, you should move to Python 3."
return retire_msg