make variables marker unified to be

ate/context.py

@@ -1,4 +1,6 @@
+import re
 import importlib
+from ate import exception, utils
 
 class Context(object):
     """ Manages binding of variables
@@ -44,13 +46,10 @@ class Context(object):
 
     def get_eval_value(self, data):
         """ evaluate data recursively, each variable in data will be evaluated.
-            variable will always be a string started with $, such as $token
+            variables marker: ${variable}.
         """
         if isinstance(data, str):
-            if data.startswith('$'):
-                # this is a variable, and will replace with its bind value
-                return self.variables.get(data[1:])
-            return data
+            return utils.parse_content_with_variables(data, self.variables)
 
         if isinstance(data, list):
             return [self.get_eval_value(item) for item in data]

ate/testcase.py

@@ -1,5 +1,4 @@
-import re
-from ate import exception
+from ate import utils
 
 class TestcaseParser(object):
 
@@ -44,22 +43,7 @@ class TestcaseParser(object):
             variables marker: ${variable}.
         """
         if isinstance(content, str):
-            # check if content includes ${variable}
-            matched = re.match(r"(.*)\$\{(.*)\}(.*)", content)
-            if matched:
-                # this is a variable, and will replace with its bind value
-                variable_name = matched.group(2)
-                value = self.variables_binds.get(variable_name)
-                if value is None:
-                    raise exception.ParamsError(
-                        "%s is not defined in bind variables!" % variable_name)
-                if matched.group(1) or matched.group(3):
-                    # e.g. /api/users/${uid}
-                    return re.sub(r"\$\{.*\}", value, content)
-
-                return value
-
-            return content
+            return utils.parse_content_with_variables(content, self.variables_binds)
 
         if isinstance(content, list):
             return [self.substitute(item) for item in content]

ate/utils.py

@@ -2,8 +2,8 @@ import hashlib
 import json
 import os.path
 import random
+import re
 import string
-
 import yaml
 
 from ate.exception import ParamsError
@@ -190,3 +190,23 @@ def load_testcases_by_path(path):
 
     else:
         return []
+
+def parse_content_with_variables(content, variables_binds):
+    """ replace variables with bind value
+    """
+    # check if content includes ${variable}
+    matched = re.match(r"(.*)\$\{(.*)\}(.*)", content)
+    if matched:
+        # this is a variable, and will replace with its bind value
+        variable_name = matched.group(2)
+        value = variables_binds.get(variable_name)
+        if value is None:
+            raise ParamsError(
+                "%s is not defined in bind variables!" % variable_name)
+        if matched.group(1) or matched.group(3):
+            # e.g. /api/users/${uid}
+            return re.sub(r"\$\{.*\}", value, content)
+
+        return value
+
+    return content

test/data/demo_binds.yml

@@ -13,7 +13,7 @@
 -
     variable_binds:
         - TOKEN: "debugtalk"
-        - token: $TOKEN
+        - token: ${TOKEN}
 
 -
     function_binds:
@@ -35,4 +35,4 @@
         - TOKEN: debugtalk
         - random: {"func": "gen_random_string", "args": [5]}
         - data: "{'name': 'user', 'password': '123456'}"
-        - authorization: {"func": "gen_md5", "args": [$TOKEN, $data, $random]}
+        - authorization: {"func": "gen_md5", "args": ["${TOKEN}", "${data}", "${random}"]}

test/data/demo_template_separate.yml

@@ -12,7 +12,7 @@
         - TOKEN: debugtalk
         - random: {"func": "gen_random_string", "args": [5]}
         - data: '{"name": "user", "password": "123456"}'
-        - authorization: {"func": "gen_md5", "args": ["$TOKEN", "$data", "$random"]}
+        - authorization: {"func": "gen_md5", "args": ["${TOKEN}", "${data}", "${random}"]}
         - expected_status_code: 201
     request:
         url: http://127.0.0.1:5000/api/users/1000
@@ -43,7 +43,7 @@
         - TOKEN: debugtalk
         - random: {"func": "gen_random_string", "args": [5]}
         - data: '{"name": "user", "password": "123456"}'
-        - authorization: {"func": "gen_md5", "args": ["$TOKEN", "$data", "$random"]}
+        - authorization: {"func": "gen_md5", "args": ["${TOKEN}", "${data}", "${random}"]}
         - expected_status_code: 500
     request:
         url: http://127.0.0.1:5000/api/users/1000

test/data/demo_template_sets.yml

@@ -11,7 +11,7 @@
         - TOKEN: debugtalk
         - random: {"func": "gen_random_string", "args": [5]}
         - data: '{"name": "user", "password": "123456"}'
-        - authorization: {"func": "gen_md5", "args": ["$TOKEN", "$data", "$random"]}
+        - authorization: {"func": "gen_md5", "args": ["${TOKEN}", "${data}", "${random}"]}
 
 - test:
     name: create user which does not exist

test/test_context.py

@@ -69,7 +69,7 @@ class VariableBindsUnittest(unittest.TestCase):
         testcase1 = {
             "variable_binds": [
                 {"GLOBAL_TOKEN": "debugtalk"},
-                {"token": "$GLOBAL_TOKEN"}
+                {"token": "${GLOBAL_TOKEN}"}
             ]
         }
         testcase2 = self.testcases[3]