relocate testcase parser

httprunner/utils.py

@@ -7,6 +7,7 @@ import hmac
 import imp
 import importlib
 import io
+import itertools
 import json
 import os.path
 import random
@@ -577,6 +578,40 @@ def create_scaffold(project_path):
     logger.color_print(msg, "BLUE")
 
 
+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 testset format
     """