[tests] remove pytest-httpbin due to security vulnerability

Bug: T331286
Change-Id: I876012a40686675185ccf3226e100edb920d88a9
---
M dev-requirements.txt
M docs/tests_ref/index.rst
D docs/tests_ref/conftest.rst
M tests/aspects.py
D tests/conftest.py
5 files changed, 12 insertions(+), 70 deletions(-)

diff --git a/dev-requirements.txt b/dev-requirements.txt
index 9624d74..f90ec6f 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -8,13 +8,6 @@
 pytest-runner
 pytest-subtests >= 0.3.2
 pytest-attrib>=0.1.3
-# pytest-httpbin needs httpbin needs werkzeug >= 0.14.1
-# Python 3.8 needs werkzeug >= 0.15.5
-# httpbin 0.7 fails with werkzeug 2.1.0/1 (T305124)
-werkzeug>=0.14.1, <2.1.0; python_version<"3.8"
-werkzeug>=0.15.5, <2.1.0; python_version>="3.8"
-
-pytest-httpbin
 
 pydocstyle>=4.0.0
 flake8>=5.0.2
diff --git a/docs/tests_ref/conftest.rst b/docs/tests_ref/conftest.rst
deleted file mode 100644
index 1b59bd6..0000000
--- a/docs/tests_ref/conftest.rst
+++ /dev/null
@@ -1,8 +0,0 @@
-*********************
-tests.conftest module
-*********************
-
-.. automodule:: tests.conftest
-    :members:
-    :undoc-members:
-    :show-inheritance:
diff --git a/docs/tests_ref/index.rst b/docs/tests_ref/index.rst
index b957ade..5b492fe 100644
--- a/docs/tests_ref/index.rst
+++ b/docs/tests_ref/index.rst
@@ -28,7 +28,6 @@
     bot<./bot_tests>
     cache<./cache_tests>
     category<./category_tests>
-    conftest
     cosmetic_changes<./cosmetic_changes_tests>
     date<./date_tests>
     diff<./diff_tests>
diff --git a/tests/aspects.py b/tests/aspects.py
index 5ab221c..3c5ca2f 100644
--- a/tests/aspects.py
+++ b/tests/aspects.py
@@ -52,17 +52,6 @@
 )
 
 
-try:
-    import pytest_httpbin
-    optional_pytest_httpbin_cls_decorator = (
-        pytest_httpbin.use_class_based_httpbin)
-except ImportError:
-    pytest_httpbin = None
-
-    def optional_pytest_httpbin_cls_decorator(f):
-        """Empty decorator in case pytest_httpbin is not installed."""
-        return f
-
 OSWIN32 = (sys.platform == 'win32')
 pywikibot.bot.set_interface('buffer')
 
@@ -474,20 +463,6 @@
         if not hasattr(cls, 'sites'):
             return
 
-        if issubclass(cls, HttpbinTestCase):
-            # If test uses httpbin, then check is pytest test runner is used
-            # and pytest_httpbin module is installed.
-            httpbin_used = hasattr(sys,
-                                   '_test_runner_pytest') and pytest_httpbin
-        else:
-            httpbin_used = False
-
-        # If pytest_httpbin will be used during tests, then remove httpbin.org
-        # from sites.
-        if httpbin_used:
-            cls.sites = {k: v for k, v in cls.sites.items()
-                         if 'httpbin.org' not in v['hostname']}
-
         for key, data in cls.sites.items():
             if 'hostname' not in data:
                 raise Exception('{}: hostname not defined for {}'
@@ -1570,7 +1545,6 @@
         super().tearDown()
 
 
-@optional_pytest_httpbin_cls_decorator
 class HttpbinTestCase(TestCase):
 
     """
@@ -1586,23 +1560,9 @@
     }
 
     def get_httpbin_url(self, path=''):
-        """
-        Return url of httpbin.
-
-        If pytest is used, returns url of local httpbin server.
-        Otherwise, returns: http://httpbin.org
-        """
-        if hasattr(self, 'httpbin'):
-            return self.httpbin.url + path
+        """Return url of httpbin."""
         return 'http://httpbin.org' + path
 
     def get_httpbin_hostname(self):
-        """
-        Return httpbin hostname.
-
-        If pytest is used, returns hostname of local httpbin server.
-        Otherwise, returns: httpbin.org
-        """
-        if hasattr(self, 'httpbin'):
-            return f'{self.httpbin.host}:{self.httpbin.port}'
+        """Return httpbin hostname."""
         return 'httpbin.org'
diff --git a/tests/conftest.py b/tests/conftest.py
deleted file mode 100644
index 5356e7a..0000000
--- a/tests/conftest.py
+++ /dev/null
@@ -1,12 +0,0 @@
-"""Used by pytest to do some preparation work before running tests."""
-#
-# (C) Pywikibot team, 2016-2020
-#
-# Distributed under the terms of the MIT license.
-#
-import sys
-
-
-def pytest_configure(config):
-    """Set the sys._test_runner_pytest flag to True, if pytest is used."""
-    sys._test_runner_pytest = True

