runner: rename method name

ate/locustfile_template

@@ -2,17 +2,16 @@
 import zmq
 import os
 from locust import HttpLocust, TaskSet, task
-from ate import testcase, runner, exception
+from ate import runner, exception
 
 class WebPageTasks(TaskSet):
     def on_start(self):
         self.test_runner = runner.Runner(self.client)
-        self.testset = self.locust.testset
 
     @task
     def test_specified_scenario(self):
         try:
-            self.test_runner.run_testset(self.testset)
+            self.test_runner.run(self.locust.file_path)
         except exception.ValidationError:
             pass
 
@@ -22,4 +21,4 @@ class WebPageUser(HttpLocust):
     min_wait = 1000
     max_wait = 5000
 
-    testset = testcase.load_test_file("$TESTCASE_FILE")
+    file_path = "$TESTCASE_FILE"