diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index e360197c..86203380 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -10,8 +10,8 @@ jobs:
     strategy:
       max-parallel: 12
       matrix:
-        python-version: [3.6, 3.7] # TODO: 3.8
-        os: [ubuntu-latest, macos-latest] # TODO: windows-latest
+        python-version: [3.6, 3.7, 3.8]
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
     - uses: actions/checkout@v1
diff --git a/examples/httpbin/debugtalk.py b/examples/httpbin/debugtalk.py
new file mode 100644
index 00000000..b31deacc
--- /dev/null
+++ b/examples/httpbin/debugtalk.py
@@ -0,0 +1,148 @@
+import os
+import random
+import string
+import time
+import uuid
+
+from loguru import logger
+
+
+def get_httpbin_server():
+    return "https://httpbin.org"
+
+
+def setup_testcase(variables):
+    logger.info(f"setup_testcase, variables: {variables}")
+    variables["request_id_prefix"] = str(int(time.time()))
+
+
+def teardown_testcase():
+    logger.info(f"teardown_testcase.")
+
+
+def setup_teststep(request, variables):
+    logger.info(f"setup_teststep, request: {request}, variables: {variables}")
+    request.setdefault("headers", {})
+    request_id_prefix = variables["request_id_prefix"]
+    request["headers"]["HRUN-Request-ID"] = request_id_prefix + "-" + str(uuid.uuid4())
+
+
+def teardown_teststep(response):
+    logger.info(f"teardown_teststep, response status code: {response.status_code}")
+
+
+def sum_two(m, n):
+    return m + n
+
+
+def sum_status_code(status_code, expect_sum):
+    """ sum status code digits
+        e.g. 400 => 4, 201 => 3
+    """
+    sum_value = 0
+    for digit in str(status_code):
+        sum_value += int(digit)
+
+    assert sum_value == expect_sum
+
+
+def is_status_code_200(status_code):
+    return status_code == 200
+
+
+os.environ["TEST_ENV"] = "PRODUCTION"
+
+
+def skip_test_in_production_env():
+    """ skip this test in production environment
+    """
+    return os.environ["TEST_ENV"] == "PRODUCTION"
+
+
+def get_user_agent():
+    return ["iOS/10.1", "iOS/10.2"]
+
+
+def gen_app_version():
+    return [{"app_version": "2.8.5"}, {"app_version": "2.8.6"}]
+
+
+def get_account():
+    return [
+        {"username": "user1", "password": "111111"},
+        {"username": "user2", "password": "222222"},
+    ]
+
+
+def get_account_in_tuple():
+    return [("user1", "111111"), ("user2", "222222")]
+
+
+def gen_random_string(str_len):
+    random_char_list = []
+    for _ in range(str_len):
+        random_char = random.choice(string.ascii_letters + string.digits)
+        random_char_list.append(random_char)
+
+    random_string = "".join(random_char_list)
+    return random_string
+
+
+def setup_hook_add_kwargs(request):
+    request["key"] = "value"
+
+
+def setup_hook_remove_kwargs(request):
+    request.pop("key")
+
+
+def teardown_hook_sleep_N_secs(response, n_secs):
+    """ sleep n seconds after request
+    """
+    if response.status_code == 200:
+        time.sleep(0.1)
+    else:
+        time.sleep(n_secs)
+
+
+def hook_print(msg):
+    print(msg)
+
+
+def modify_request_json(request, os_platform):
+    request["json"]["os_platform"] = os_platform
+
+
+def setup_hook_httpntlmauth(request):
+    if "httpntlmauth" in request:
+        from requests_ntlm import HttpNtlmAuth
+
+        auth_account = request.pop("httpntlmauth")
+        request["auth"] = HttpNtlmAuth(
+            auth_account["username"], auth_account["password"]
+        )
+
+
+def alter_response(response):
+    response.status_code = 500
+    response.headers["Content-Type"] = "html/text"
+    response.json["headers"]["Host"] = "127.0.0.1:8888"
+    response.new_attribute = "new_attribute_value"
+    response.new_attribute_dict = {"key": 123}
+
+
+def alter_response_302(response):
+    response.status_code = 500
+    response.headers["Content-Type"] = "html/text"
+    response.text = "abcdef"
+    response.new_attribute = "new_attribute_value"
+    response.new_attribute_dict = {"key": 123}
+
+
+def alter_response_error(response):
+    # NameError
+    not_defined_variable
+
+
+def gen_variables():
+    return {"var_a": 1, "var_b": 2}
diff --git a/httprunner/loader_test.py b/httprunner/loader_test.py
index 503688c0..6cefbcb5 100644
--- a/httprunner/loader_test.py
+++ b/httprunner/loader_test.py
@@ -76,7 +76,7 @@ class TestLoader(unittest.TestCase):
     def test_load_folder_files(self):
         folder = os.path.join(os.getcwd(), "examples")
         file1 = os.path.join(os.getcwd(), "examples", "test_utils.py")
-        file2 = os.path.join(os.getcwd(), "examples", "httpbin", "basic.yml")
+        file2 = os.path.join(os.getcwd(), "examples", "httpbin", "hooks.yml")
 
         files = loader.load_folder_files(folder, recursive=False)
         self.assertEqual(files, [])