diff --git a/httprunner/__about__.py b/httprunner/__about__.py
index 4a8bceb5..30d339cc 100644
--- a/httprunner/__about__.py
+++ b/httprunner/__about__.py
@@ -1,7 +1,7 @@
 __title__ = 'HttpRunner'
 __description__ = 'One-stop solution for HTTP(S) testing.'
 __url__ = 'https://github.com/HttpRunner/HttpRunner'
-__version__ = '1.5.11'
+__version__ = '1.5.12'
 __author__ = 'debugtalk'
 __author_email__ = 'mail@debugtalk.com'
 __license__ = 'MIT'
diff --git a/httprunner/context.py b/httprunner/context.py
index 766aae22..24fdbab2 100644
--- a/httprunner/context.py
+++ b/httprunner/context.py
@@ -230,6 +230,7 @@ class Context(object):
 
         logger.log_info("start to validate.")
         validate_pass = True
+        failures = []
 
         for validator in validators:
             # evaluate validators with context variable mapping.
@@ -240,12 +241,14 @@ class Context(object):
 
             try:
                 self._do_validation(evaluated_validator)
-            except exceptions.ValidationFailure:
+            except exceptions.ValidationFailure as ex:
                 validate_pass = False
+                failures.append(str(ex))
 
             evaluated_validators.append(evaluated_validator)
 
         if not validate_pass:
-            raise exceptions.ValidationFailure
+            failures_string = "\n".join([failure for failure in failures])
+            raise exceptions.ValidationFailure(failures_string)
 
         return evaluated_validators
diff --git a/httprunner/runner.py b/httprunner/runner.py
index 7342a89a..16271b4d 100644
--- a/httprunner/runner.py
+++ b/httprunner/runner.py
@@ -214,8 +214,7 @@ class Runner(object):
         # validate
         try:
             self.evaluated_validators = self.context.validate(validators, resp_obj)
-        except (exceptions.ParamsError, \
-                exceptions.ValidationFailure, exceptions.ExtractFailure):
+        except (exceptions.ParamsError, exceptions.ValidationFailure, exceptions.ExtractFailure):
             # log request
             err_req_msg = "request: \n"
             err_req_msg += "headers: {}\n".format(parsed_request.pop("headers", {}))
diff --git a/httprunner/utils.py b/httprunner/utils.py
index be0c6b75..1b037ec3 100644
--- a/httprunner/utils.py
+++ b/httprunner/utils.py
@@ -263,7 +263,7 @@ def add_teststep(test_runner, teststep_dict):
         try:
             test_runner.run_test(teststep_dict)
         except exceptions.MyBaseFailure as ex:
-            self.fail(repr(ex))
+            self.fail(str(ex))
         finally:
             if hasattr(test_runner.http_client_session, "meta_data"):
                 self.meta_data = test_runner.http_client_session.meta_data