From f1cac82a15473cb80412dddd39ca395c58b89ab5 Mon Sep 17 00:00:00 2001
From: debugtalk <mail@debugtalk.com>
Date: Wed, 28 Feb 2018 23:56:10 +0800
Subject: [PATCH] #106: support builtin functions

---
 httprunner/__about__.py   |  2 +-
 httprunner/testcase.py    |  5 +++++
 tests/data/demo_binds.yml |  6 ++++++
 tests/test_context.py     | 19 +++++++++++++++++++
 4 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index f401e934..1ae1c422 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'HTTP test runner, not just about api test and load test.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '0.9.7'
+__version__ = '0.9.8'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/testcase.py b/httprunner/testcase.py
index b218ebca..cdb42d3b 100644
--- a/httprunner/testcase.py
+++ b/httprunner/testcase.py
@@ -703,6 +703,11 @@ class TestcaseParser(object):
         if item_type == "function":
             if item_name in self.functions:
                 return self.functions[item_name]
+
+            try:
+                return eval(item_name)
+            except NameError:
+                pass
         elif item_type == "variable":
             if item_name in self.variables:
                 return self.variables[item_name]
diff --git a/tests/data/demo_binds.yml b/tests/data/demo_binds.yml
index 1ceb4db9..2bfda8a1 100644
--- a/tests/data/demo_binds.yml
+++ b/tests/data/demo_binds.yml
@@ -34,3 +34,9 @@ bind_module_functions:
         - random: ${gen_random_string(5)}
         - data: "{'name': 'user', 'password': '123456'}"
         - authorization: ${gen_md5($TOKEN, $data, $random)}
+
+builtin_functions:
+    variables:
+        - length: ${len(debugtalk)}
+        - smallest: ${min(2, 3, 8)}
+        - largest: ${max(2, 3, 8)}
diff --git a/tests/test_context.py b/tests/test_context.py
index 3d14ea2c..e099b288 100644
--- a/tests/test_context.py
+++ b/tests/test_context.py
@@ -100,6 +100,25 @@ class VariableBindsUnittest(ApiServerUnittest):
             self.assertIn("sum2nums", context_variables)
             self.assertEqual(context_variables["sum2nums"], 5)
 
+    def test_call_builtin_functions(self):
+        testcase1 = {
+            "variables": [
+                {"length": "${len(debugtalk)}"},
+                {"smallest": "${min(2, 3, 8)}"},
+                {"largest": "${max(2, 3, 8)}"}
+            ]
+        }
+        testcase2 = self.testcases["builtin_functions"]
+
+        for testcase in [testcase1, testcase2]:
+            variables = testcase['variables']
+            self.context.bind_variables(variables)
+
+            context_variables = self.context.testcase_variables_mapping
+            self.assertEqual(context_variables["length"], 9)
+            self.assertEqual(context_variables["smallest"], 2)
+            self.assertEqual(context_variables["largest"], 8)
+
     def test_context_bind_lambda_functions_with_import(self):
         testcase1 = {
             "requires": ["random", "string", "hashlib"],