diff --git a/tests/data/demo_binds.yml b/tests/data/demo_binds.yml
deleted file mode 100644
index 43d1c3f9..00000000
--- a/tests/data/demo_binds.yml
+++ /dev/null
@@ -1,10 +0,0 @@
-bind_variables:
-    variables:
-        TOKEN: "debugtalk"
-        token: $TOKEN
-
-builtin_functions:
-    variables:
-        length: ${len(debugtalk)}
-        smallest: ${min(2, 3, 8)}
-        largest: ${max(2, 3, 8)}
diff --git a/tests/data/demo_parameters.yml b/tests/data/demo_parameters.yml
deleted file mode 100644
index 4ebc93b9..00000000
--- a/tests/data/demo_parameters.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-- config:
-    name: "user management testcase."
-    parameters:
-        user_agent: ["iOS/10.1", "iOS/10.2", "iOS/10.3"]
-        username-password:
-            - ["test1","111111"]
-            - ["test2","222222"]
-    variables:
-        username: test1
-        user_agent: "iOS/10.1"
-        device_sn: ${gen_random_string(15)}
-        os_platform: 'ios'
-        app_version: 2.8.5
-    base_url: ${get_base_url()}
-    output:
-        - token
-
-- test:
-    name: get token with $user_agent and $username
-    api: api/get_token.yml
-    extract:
-        - token: content.token
-    validate:
-        - "eq": ["status_code", 200]
-        - "len_eq": ["content.token", 16]
diff --git a/tests/test_context.py b/tests/test_context.py
index 342ba51d..51e980e5 100644
--- a/tests/test_context.py
+++ b/tests/test_context.py
@@ -15,8 +15,6 @@ class TestContext(ApiServerUnittest):
             functions=project_mapping["functions"],
             variables={"SECRET_KEY": "DebugTalk"}
         )
-        testcase_file_path = os.path.join(os.getcwd(), 'tests/data/demo_binds.yml')
-        self.testcases = loader.load_file(testcase_file_path)
 
     def test_init_context_functions(self):
         context_functions = self.context.FUNCTIONS_MAPPING
diff --git a/tests/test_loader.py b/tests/test_loader.py
index 4a659e07..f8f3a204 100644
--- a/tests/test_loader.py
+++ b/tests/test_loader.py
@@ -112,19 +112,15 @@ class TestFileLoader(unittest.TestCase):
     def test_load_folder_files(self):
         folder = os.path.join(os.getcwd(), 'tests')
         file1 = os.path.join(os.getcwd(), 'tests', 'test_utils.py')
-        file2 = os.path.join(os.getcwd(), 'tests', 'data', 'demo_binds.yml')
+        file2 = os.path.join(os.getcwd(), 'tests', 'api', 'reset_all.yml')
 
         files = loader.load_folder_files(folder, recursive=False)
-        self.assertNotIn(file2, files)
+        self.assertEqual(files, [])
 
         files = loader.load_folder_files(folder)
         self.assertIn(file2, files)
         self.assertNotIn(file1, files)
 
-        files = loader.load_folder_files(folder)
-        api_file = os.path.join(os.getcwd(), 'tests', 'api', 'reset_all.yml')
-        self.assertIn(api_file, files)
-
         files = loader.load_folder_files("not_existed_foulder", recursive=False)
         self.assertEqual([], files)