Tests: removed unused variables.

34 files changed, 87 insertions, 91 deletions

diff --git a/test/conftest.py b/test/conftest.py
index 926d83f8..4c548903 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -175,7 +175,7 @@ Unexpected prerequisite version "{prereq_version}" for module "{module}" in
                 )
 
 
-def pytest_sessionstart(session):
+def pytest_sessionstart():
     option.available = {'modules': {}, 'features': {}}
 
     unit = unit_run()
@@ -185,7 +185,7 @@ def pytest_sessionstart(session):
 
     # read unit.log
 
-    for i in range(50):
+    for _ in range(50):
         with open(Log.get_path(), 'r') as f:
             log = f.read()
             m = re.search('controller started', log)
@@ -237,7 +237,7 @@ def pytest_sessionstart(session):
 
 
 @pytest.hookimpl(tryfirst=True, hookwrapper=True)
-def pytest_runtest_makereport(item, call):
+def pytest_runtest_makereport(item):
     # execute all other hooks to obtain the report object
     outcome = yield
     rep = outcome.get_result()
@@ -567,7 +567,7 @@ def _clear_temp_dir():
             if os.path.isfile(path) or stat.S_ISSOCK(os.stat(path).st_mode):
                 os.remove(path)
             else:
-                for attempt in range(10):
+                for _ in range(10):
                     try:
                         shutil.rmtree(path)
                         break
@@ -582,7 +582,7 @@ def _check_processes():
     controller_pid = _fds_info['controller']['pid']
     unit_pid = unit_instance['pid']
 
-    for i in range(600):
+    for _ in range(600):
         out = (
             subprocess.check_output(
                 ['ps', '-ax', '-o', 'pid', '-o', 'ppid', '-o', 'command']
@@ -625,7 +625,7 @@ def _check_processes():
 @print_log_on_assert
 def _check_fds(*, log=None):
     def waitforfds(diff):
-        for i in range(600):
+        for _ in range(600):
             fds_diff = diff()
 
             if fds_diff <= option.fds_threshold:
@@ -748,7 +748,7 @@ def skip_fds_check():
 
 
 @pytest.fixture
-def temp_dir(request):
+def temp_dir():
     return unit_instance['temp_dir']
 
 
@@ -758,16 +758,16 @@ def is_unsafe(request):
 
 
 @pytest.fixture
-def is_su(request):
+def is_su():
     return os.geteuid() == 0
 
 
 @pytest.fixture
-def unit_pid(request):
+def unit_pid():
     return unit_instance['process'].pid
 
 
-def pytest_sessionfinish(session):
+def pytest_sessionfinish():
     if not option.restart and option.save_log:
         print(f'Path to unit.log:\n{Log.get_path()}\n')
 
diff --git a/test/test_access_log.py b/test/test_access_log.py
index c29638a3..86afb628 100644
--- a/test/test_access_log.py
+++ b/test/test_access_log.py
@@ -32,7 +32,7 @@ class TestAccessLog(TestApplicationPython):
 
         assert self.get()['status'] == 200, 'init'
 
-        (resp, sock) = self.post(
+        (_, sock) = self.post(
             headers={
                 'Host': 'localhost',
                 'Connection': 'keep-alive',
@@ -46,7 +46,7 @@ class TestAccessLog(TestApplicationPython):
             self.wait_for_record(r'"POST / HTTP/1.1" 200 5') is not None
         ), 'keepalive 1'
 
-        resp = self.post(sock=sock, body='0123456789')
+        _ = self.post(sock=sock, body='0123456789')
 
         assert (
             self.wait_for_record(r'"POST / HTTP/1.1" 200 10') is not None
@@ -169,7 +169,7 @@ Connection: close
 
         assert self.post()['status'] == 200, 'init'
 
-        resp = self.http(b"""GE""", raw=True, read_timeout=1)
+        _ = self.http(b"""GE""", raw=True, read_timeout=1)
 
         time.sleep(1)
 
@@ -193,7 +193,7 @@ Connection: close
 
         assert self.post()['status'] == 200, 'init'
 
-        resp = self.http(b"""GET / HTTP/1.1""", raw=True, read_timeout=1)
+        _ = self.http(b"""GET / HTTP/1.1""", raw=True, read_timeout=1)
 
         time.sleep(1)
 
@@ -206,7 +206,7 @@ Connection: close
 
         assert self.post()['status'] == 200, 'init'
 
-        resp = self.http(b"""GET / HTTP/1.1\n""", raw=True, read_timeout=1)
+        _ = self.http(b"""GET / HTTP/1.1\n""", raw=True, read_timeout=1)
 
         time.sleep(1)
 
diff --git a/test/test_asgi_application.py b/test/test_asgi_application.py
index fb5e1742..10e72367 100644
--- a/test/test_asgi_application.py
+++ b/test/test_asgi_application.py
@@ -59,7 +59,7 @@ custom-header: BLAH
         }, 'headers'
         assert resp['body'] == body, 'body'
 
-    def test_asgi_application_ipv6(self, temp_dir):
+    def test_asgi_application_ipv6(self):
         self.load('empty')
 
         assert 'success' in self.conf(
@@ -401,7 +401,7 @@ Connection: close
 
         socks = []
 
-        for i in range(2):
+        for _ in range(2):
             sock = self.get(
                 headers={
                     'Host': 'localhost',
diff --git a/test/test_asgi_websockets.py b/test/test_asgi_websockets.py
index b15bee43..e891b03e 100644
--- a/test/test_asgi_websockets.py
+++ b/test/test_asgi_websockets.py
@@ -19,7 +19,7 @@ class TestASGIWebsockets(TestApplicationPython):
     ws = TestApplicationWebsocket()
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         assert 'success' in self.conf(
             {'http': {'websocket': {'keepalive_interval': 0}}}, 'settings'
         ), 'clear keepalive_interval'
@@ -73,7 +73,7 @@ class TestASGIWebsockets(TestApplicationPython):
     def test_asgi_websockets_subprotocol(self):
         self.load('websockets/subprotocol')
 
-        resp, sock, key = self.ws.upgrade()
+        resp, sock, _ = self.ws.upgrade()
         sock.close()
 
         assert resp['status'] == 101, 'status'
@@ -951,7 +951,7 @@ class TestASGIWebsockets(TestApplicationPython):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=False)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
@@ -961,7 +961,7 @@ class TestASGIWebsockets(TestApplicationPython):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=True)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
diff --git a/test/test_client_ip.py b/test/test_client_ip.py
index 6520d5e2..d0e7b793 100644
--- a/test/test_client_ip.py
+++ b/test/test_client_ip.py
@@ -96,7 +96,7 @@ class TestClientIP(TestApplicationPython):
         ]:
             assert self.get_xff(ip, 'ipv6') == ip, 'replace'
 
-    def test_client_ip_unix(self, temp_dir):
+    def test_client_ip_unix(self):
         self.client_ip({'header': 'X-Forwarded-For', 'source': 'unix'})
 
         assert self.get_xff('1.1.1.1') == '127.0.0.1', 'bad source ipv4'
diff --git a/test/test_configuration.py b/test/test_configuration.py
index e3ddc891..d774ceb3 100644
--- a/test/test_configuration.py
+++ b/test/test_configuration.py
@@ -25,7 +25,7 @@ class TestConfiguration(TestControl):
 
     def test_json_unicode(self):
         assert 'success' in self.conf(
-            u"""
+            """
             {
                 "ap\u0070": {
                     "type": "\u0070ython",
@@ -64,7 +64,7 @@ class TestConfiguration(TestControl):
 
     def test_json_unicode_number(self):
         assert 'success' in self.conf(
-            u"""
+            """
             {
                 "app": {
                     "type": "python",
@@ -252,7 +252,7 @@ class TestConfiguration(TestControl):
         )
 
     def test_listeners_port_release(self):
-        for i in range(10):
+        for _ in range(10):
             fail = False
             with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
                 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
diff --git a/test/test_go_application.py b/test/test_go_application.py
index 9034d5aa..880a617a 100644
--- a/test/test_go_application.py
+++ b/test/test_go_application.py
@@ -8,7 +8,7 @@ class TestGoApplication(TestApplicationGo):
     prerequisites = {'modules': {'go': 'all'}}
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         skip_alert(r'\[unit\] close\(\d+\) failed: Bad file descriptor')
 
     def test_go_application_variables(self):
diff --git a/test/test_go_isolation.py b/test/test_go_isolation.py
index f063f987..2f631692 100644
--- a/test/test_go_isolation.py
+++ b/test/test_go_isolation.py
@@ -12,7 +12,7 @@ class TestGoIsolation(TestApplicationGo):
     prerequisites = {'modules': {'go': 'any'}, 'features': ['isolation']}
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         skip_alert(r'\[unit\] close\(\d+\) failed: Bad file descriptor')
 
     def unpriv_creds(self):
diff --git a/test/test_go_isolation_rootfs.py b/test/test_go_isolation_rootfs.py
index d246a48d..b321bc3f 100644
--- a/test/test_go_isolation_rootfs.py
+++ b/test/test_go_isolation_rootfs.py
@@ -8,7 +8,7 @@ class TestGoIsolationRootfs(TestApplicationGo):
     prerequisites = {'modules': {'go': 'all'}}
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         skip_alert(r'\[unit\] close\(\d+\) failed: Bad file descriptor')
 
     def test_go_isolation_rootfs_chroot(self, is_su, temp_dir):
diff --git a/test/test_java_application.py b/test/test_java_application.py
index 6ff556a8..5e346ac9 100644
--- a/test/test_java_application.py
+++ b/test/test_java_application.py
@@ -1003,7 +1003,7 @@ class TestJavaApplication(TestApplicationJava):
 
         socks = []
 
-        for i in range(4):
+        for _ in range(4):
             sock = self.get(
                 headers={
                     'Host': 'localhost',
diff --git a/test/test_java_websockets.py b/test/test_java_websockets.py
index 8de45a06..85d7fec6 100644
--- a/test/test_java_websockets.py
+++ b/test/test_java_websockets.py
@@ -13,7 +13,7 @@ class TestJavaWebsockets(TestApplicationJava):
     ws = TestApplicationWebsocket()
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         assert 'success' in self.conf(
             {'http': {'websocket': {'keepalive_interval': 0}}}, 'settings'
         ), 'clear keepalive_interval'
@@ -878,7 +878,7 @@ class TestJavaWebsockets(TestApplicationJava):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=False)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
@@ -888,7 +888,7 @@ class TestJavaWebsockets(TestApplicationJava):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=True)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
diff --git a/test/test_njs.py b/test/test_njs.py
index a7261290..bd89e16d 100644
--- a/test/test_njs.py
+++ b/test/test_njs.py
@@ -42,7 +42,7 @@ class TestNJS(TestApplicationProto):
         self.set_share(f'"{temp_dir}/assets/`string`"')
         assert self.get()['status'] == 200
 
-    def test_njs_template_expression(self, temp_dir):
+    def test_njs_template_expression(self):
         self.create_files('str', 'localhost')
 
         self.check_expression('${uri}', '/str')
@@ -50,7 +50,7 @@ class TestNJS(TestApplicationProto):
         self.check_expression('${uri + host}')
         self.check_expression('${uri + `${host}`}')
 
-    def test_njs_iteration(self, temp_dir):
+    def test_njs_iteration(self):
         self.create_files('Connection,Host', 'close,localhost')
 
         self.check_expression('/${Object.keys(headers).sort().join()}')
@@ -74,7 +74,7 @@ class TestNJS(TestApplicationProto):
         self.set_share(f'"`{temp_dir}/assets/${{args.foo}}`"')
         assert self.get(url='/?foo=str')['status'] == 200, 'args'
 
-    def test_njs_invalid(self, temp_dir, skip_alert):
+    def test_njs_invalid(self, skip_alert):
         skip_alert(r'js exception:')
 
         def check_invalid(template):
diff --git a/test/test_node_websockets.py b/test/test_node_websockets.py
index f1767cac..3c245596 100644
--- a/test/test_node_websockets.py
+++ b/test/test_node_websockets.py
@@ -13,7 +13,7 @@ class TestNodeWebsockets(TestApplicationNode):
     ws = TestApplicationWebsocket()
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request, skip_alert):
+    def setup_method_fixture(self, skip_alert):
         assert 'success' in self.conf(
             {'http': {'websocket': {'keepalive_interval': 0}}}, 'settings'
         ), 'clear keepalive_interval'
@@ -897,7 +897,7 @@ class TestNodeWebsockets(TestApplicationNode):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=False)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
@@ -907,7 +907,7 @@ class TestNodeWebsockets(TestApplicationNode):
 
         _, sock, _ = self.ws.upgrade()
 
-        for i in range(0, 2):
+        for _ in range(0, 2):
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment1', fin=True)
             self.ws.frame_write(sock, self.ws.OP_TEXT, 'fragment2', fin=False)
             self.ws.frame_write(sock, self.ws.OP_CONT, 'fragment3', fin=True)
diff --git a/test/test_perl_application.py b/test/test_perl_application.py
index 3c327aa1..4a400ff0 100644
--- a/test/test_perl_application.py
+++ b/test/test_perl_application.py
@@ -263,7 +263,7 @@ class TestPerlApplication(TestApplicationPerl):
 
         socks = []
 
-        for i in range(4):
+        for _ in range(4):
             sock = self.get(
                 headers={
                     'Host': 'localhost',
diff --git a/test/test_php_application.py b/test/test_php_application.py
index 6e1d190a..30b37f12 100644
--- a/test/test_php_application.py
+++ b/test/test_php_application.py
@@ -807,7 +807,7 @@ opcache.preload_user = {option.user or getpass.getuser()}
         assert r['headers']['X-Pid'] != pid, 'new instance'
         assert r['headers']['X-Cached'] == '1', 'cached'
 
-    def test_php_application_opcache_preload_chdir(self, temp_dir):
+    def test_php_application_opcache_preload_chdir(self):
         self.load('opcache')
 
         self.check_opcache()
@@ -817,7 +817,7 @@ opcache.preload_user = {option.user or getpass.getuser()}
         assert self.get()['headers']['X-Cached'] == '0', 'not cached'
         assert self.get()['headers']['X-Cached'] == '1', 'cached'
 
-    def test_php_application_opcache_preload_ffr(self, temp_dir):
+    def test_php_application_opcache_preload_ffr(self):
         self.load('opcache')
 
         self.check_opcache()
diff --git a/test/test_proxy.py b/test/test_proxy.py
index 74e48ca1..2f1775cb 100644
--- a/test/test_proxy.py
+++ b/test/test_proxy.py
@@ -39,7 +39,7 @@ Content-Length: 10
 """
 
         while True:
-            connection, client_address = sock.accept()
+            connection, _ = sock.accept()
 
             data = recvall(connection).decode()
 
diff --git a/test/test_proxy_chunked.py b/test/test_proxy_chunked.py
index f31c976a..66aab67f 100644
--- a/test/test_proxy_chunked.py
+++ b/test/test_proxy_chunked.py
@@ -5,7 +5,6 @@ import time
 
 from conftest import run_process
 from unit.applications.lang.python import TestApplicationPython
-from unit.option import option
 from unit.utils import waitforsocket
 
 
@@ -15,7 +14,7 @@ class TestProxyChunked(TestApplicationPython):
     SERVER_PORT = 7999
 
     @staticmethod
-    def run_server(server_port, temp_dir):
+    def run_server(server_port):
         sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
         sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
         sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
@@ -42,7 +41,7 @@ class TestProxyChunked(TestApplicationPython):
             return data
 
         while True:
-            connection, client_address = sock.accept()
+            connection, _ = sock.accept()
 
             req = """HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked"""
 
@@ -85,7 +84,7 @@ class TestProxyChunked(TestApplicationPython):
         return self.get(*args, http_10=True, **kwargs)
 
     def setup_method(self):
-        run_process(self.run_server, self.SERVER_PORT, option.temp_dir)
+        run_process(self.run_server, self.SERVER_PORT)
         waitforsocket(self.SERVER_PORT)
 
         assert 'success' in self.conf(
diff --git a/test/test_python_application.py b/test/test_python_application.py
index d412ac68..7b8959e8 100644
--- a/test/test_python_application.py
+++ b/test/test_python_application.py
@@ -875,7 +875,7 @@ last line: 987654321
 
         socks = []
 
-        for i in range(4):
+        for _ in range(4):
             sock = self.get(
                 headers={
                     'Host': 'localhost',
diff --git a/test/test_python_isolation.py b/test/test_python_isolation.py
index c524aea0..35ca4a56 100644
--- a/test/test_python_isolation.py
+++ b/test/test_python_isolation.py
@@ -125,7 +125,7 @@ class TestPythonIsolation(TestApplicationPython):
             self.getjson(url='/?path=/proc/self')['body']['FileExists'] == True
         ), '/proc/self'
 
-    def test_python_isolation_cgroup(self, is_su, temp_dir):
+    def test_python_isolation_cgroup(self, is_su):
         if not is_su:
             pytest.skip('requires root')
 
@@ -148,7 +148,7 @@ class TestPythonIsolation(TestApplicationPython):
 
         assert len(cgroup_rel.parts) >= len(cgroup_abs.parts)
 
-    def test_python_isolation_cgroup_two(self, is_su, temp_dir):
+    def test_python_isolation_cgroup_two(self, is_su):
         if not is_su:
             pytest.skip('requires root')
 
diff --git a/test/test_python_procman.py b/test/test_python_procman.py
index d69123ef..d3bcaa53 100644
--- a/test/test_python_procman.py
+++ b/test/test_python_procman.py
@@ -160,7 +160,7 @@ class TestPythonProcman(TestApplicationPython):
     def test_python_processes_connection_keepalive(self):
         self.conf_proc({"spare": 0, "max": 6, "idle_timeout": 2})
 
-        (resp, sock) = self.get(
+        (_, sock) = self.get(
             headers={'Host': 'localhost', 'Connection': 'keep-alive'},
             start=True,
             read_timeout=1,
diff --git a/test/test_respawn.py b/test/test_respawn.py
index 3d3dfac3..00271503 100644
--- a/test/test_respawn.py
+++ b/test/test_respawn.py
@@ -30,7 +30,7 @@ class TestRespawn(TestApplicationPython):
         subprocess.call(['kill', '-9', *pids])
 
     def wait_for_process(self, process, unit_pid):
-        for i in range(50):
+        for _ in range(50):
             found = self.pid_by_name(process, unit_pid)
 
             if found is not None:
diff --git a/test/test_return.py b/test/test_return.py
index 4b8bddc7..e65a7a31 100644
--- a/test/test_return.py
+++ b/test/test_return.py
@@ -129,8 +129,8 @@ Connection: close
         check_location(f'#{unsafe}', f'#{unsafe_enc}')
 
         # %00-%20 and %7F-%FF always encoded.
-        check_location(u"\u0000\u0018\u001F\u0020\u0021", "%00%18%1F%20!")
-        check_location(u"\u007F\u0080н\u20BD", "%7F%C2%80%D0%BD%E2%82%BD")
+        check_location("\u0000\u0018\u001F\u0020\u0021", "%00%18%1F%20!")
+        check_location("\u007F\u0080н\u20BD", "%7F%C2%80%D0%BD%E2%82%BD")
 
         # Encoded string detection.  If at least one char need to be encoded
         # then whole string will be encoded.
diff --git a/test/test_routing.py b/test/test_routing.py
index a4806d5c..4909a698 100644
--- a/test/test_routing.py
+++ b/test/test_routing.py
@@ -1490,28 +1490,28 @@ class TestRouting(TestApplicationPython):
             return (sock, port)
 
         sock, port = sock_port()
-        sock2, port2 = sock_port()
+        sock2, _ = sock_port()
 
         self.route_match({"source": f'127.0.0.1:{port}'})
         assert self.get(sock=sock)['status'] == 200, 'exact'
         assert self.get(sock=sock2)['status'] == 404, 'exact 2'
 
         sock, port = sock_port()
-        sock2, port2 = sock_port()
+        sock2, _ = sock_port()
 
         self.route_match({"source": f'!127.0.0.1:{port}'})
         assert self.get(sock=sock)['status'] == 404, 'negative'
         assert self.get(sock=sock2)['status'] == 200, 'negative 2'
 
         sock, port = sock_port()
-        sock2, port2 = sock_port()
+        sock2, _ = sock_port()
 
         self.route_match({"source": [f'*:{port}', "!127.0.0.1"]})
         assert self.get(sock=sock)['status'] == 404, 'negative 3'
         assert self.get(sock=sock2)['status'] == 404, 'negative 4'
 
         sock, port = sock_port()
-        sock2, port2 = sock_port()
+        sock2, _ = sock_port()
 
         self.route_match({"source": f'127.0.0.1:{port}-{port}'})
         assert self.get(sock=sock)['status'] == 200, 'range single'
diff --git a/test/test_ruby_application.py b/test/test_ruby_application.py
index 068b587b..ecce86cb 100644
--- a/test/test_ruby_application.py
+++ b/test/test_ruby_application.py
@@ -387,7 +387,7 @@ class TestRubyApplication(TestApplicationRuby):
 
         socks = []
 
-        for i in range(4):
+        for _ in range(4):
             sock = self.get(
                 headers={
                     'Host': 'localhost',
diff --git a/test/test_settings.py b/test/test_settings.py
index 965f7197..857bddcc 100644
--- a/test/test_settings.py
+++ b/test/test_settings.py
@@ -89,7 +89,7 @@ class TestSettings(TestApplicationPython):
         self.load('empty')
 
         def req():
-            (resp, sock) = self.http(
+            (_, sock) = self.http(
                 b"""GET / HTTP/1.1
 """,
                 start=True,
@@ -173,7 +173,7 @@ Connection: close
         self.load('empty')
 
         def req():
-            (resp, sock) = self.http(
+            (_, sock) = self.http(
                 b"""POST / HTTP/1.1
 Host: localhost
 Content-Length: 10
@@ -293,7 +293,7 @@ Connection: close
         self.load('empty')
 
         def req():
-            (resp, sock) = self.get(
+            (_, sock) = self.get(
                 headers={'Host': 'localhost', 'Connection': 'keep-alive'},
                 start=True,
                 read_timeout=1,
diff --git a/test/test_static_chroot.py b/test/test_static_chroot.py
index c5a35d82..812e14ea 100644
--- a/test/test_static_chroot.py
+++ b/test/test_static_chroot.py
@@ -74,14 +74,14 @@ class TestStaticChroot(TestApplicationProto):
 
         assert self.get(url='/dir/file')['status'] == 200, 'chroot'
 
-    def test_static_chroot_empty(self, temp_dir):
+    def test_static_chroot_empty(self):
         assert 'success' in self.update_action('')
         assert self.get(url='/dir/file')['status'] == 200, 'empty absolute'
 
         assert 'success' in self.update_action("", ".$uri")
         assert self.get(url=self.test_path)['status'] == 200, 'empty relative'
 
-    def test_static_chroot_relative(self, is_su, temp_dir):
+    def test_static_chroot_relative(self, is_su):
         if is_su:
             pytest.skip("Does't work under root.")
 
diff --git a/test/test_status.py b/test/test_status.py
index d0901f42..8a00002b 100644
--- a/test/test_status.py
+++ b/test/test_status.py
@@ -1,6 +1,5 @@
 import time
 
-import pytest
 from unit.applications.lang.python import TestApplicationPython
 from unit.option import option
 from unit.status import Status
diff --git a/test/test_tls.py b/test/test_tls.py
index 06c38d0b..a4dc8ef5 100644
--- a/test/test_tls.py
+++ b/test/test_tls.py
@@ -28,7 +28,7 @@ class TestTLS(TestApplicationTLS):
             {"pass": f"applications/{application}"}, f'listeners/*:{port}'
         )
 
-    def req(self, name='localhost', subject=None, x509=False):
+    def req(self, name='localhost', subject=None):
         subj = subject if subject is not None else f'/CN={name}/'
 
         subprocess.check_output(
@@ -426,7 +426,7 @@ basicConstraints = critical,CA:TRUE"""
 
         assert self.get_ssl()['status'] == 200, 'certificate chain long'
 
-    def test_tls_certificate_empty_cn(self, temp_dir):
+    def test_tls_certificate_empty_cn(self):
         self.certificate('root', False)
 
         self.req(subject='/')
@@ -442,7 +442,7 @@ basicConstraints = critical,CA:TRUE"""
         assert cert['chain'][0]['subject'] == {}, 'empty subject'
         assert cert['chain'][0]['issuer']['common_name'] == 'root', 'issuer'
 
-    def test_tls_certificate_empty_cn_san(self, temp_dir):
+    def test_tls_certificate_empty_cn_san(self):
         self.certificate('root', False)
 
         self.openssl_conf(
@@ -535,7 +535,7 @@ basicConstraints = critical,CA:TRUE"""
             }
         ), 'load application configuration'
 
-        (resp, sock) = self.get_ssl(start=True)
+        (_, sock) = self.get_ssl(start=True)
 
         time.sleep(5)
 
diff --git a/test/test_tls_conf_command.py b/test/test_tls_conf_command.py
index 605848ea..f2238574 100644
--- a/test/test_tls_conf_command.py
+++ b/test/test_tls_conf_command.py
@@ -8,7 +8,7 @@ class TestTLSConfCommand(TestApplicationTLS):
     prerequisites = {'modules': {'openssl': 'any'}}
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request):
+    def setup_method_fixture(self):
         self.certificate()
 
         assert 'success' in self.conf(
@@ -35,7 +35,7 @@ class TestTLSConfCommand(TestApplicationTLS):
 
         # Set one conf_commands (disable protocol).
 
-        (resp, sock) = self.get_ssl(start=True)
+        (_, sock) = self.get_ssl(start=True)
 
         shared_ciphers = sock.shared_ciphers()
         protocols = list(set(c[1] for c in shared_ciphers))
@@ -55,7 +55,7 @@ class TestTLSConfCommand(TestApplicationTLS):
         sock.close()
 
         if len(protocols) > 1:
-            (resp, sock) = self.get_ssl(start=True)
+            (_, sock) = self.get_ssl(start=True)
 
             cipher = sock.cipher()
             assert cipher[1] != protocol, 'new protocol used'
@@ -82,7 +82,7 @@ class TestTLSConfCommand(TestApplicationTLS):
         ), 'cipher disabled'
 
         if len(ciphers) > 1:
-            (resp, sock) = self.get_ssl(start=True)
+            (_, sock) = self.get_ssl(start=True)
 
             cipher_new = sock.cipher()
             assert cipher_new[1] == cipher[1], 'previous protocol used'
diff --git a/test/test_tls_session.py b/test/test_tls_session.py
index 58f11f2d..84637dea 100644
--- a/test/test_tls_session.py
+++ b/test/test_tls_session.py
@@ -19,7 +19,7 @@ class TestTLSSession(TestApplicationTLS):
     prerequisites = {'modules': {'openssl': 'any'}}
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request):
+    def setup_method_fixture(self):
         self.certificate()
 
         assert 'success' in self.conf(
@@ -70,21 +70,21 @@ class TestTLSSession(TestApplicationTLS):
         )
 
     def test_tls_session(self):
-        client, sess, ctx, reused = self.connect()
+        _, sess, ctx, reused = self.connect()
         assert not reused, 'new connection'
 
-        client, _, _, reused = self.connect(ctx, sess)
+        _, _, _, reused = self.connect(ctx, sess)
         assert not reused, 'no cache'
 
         assert 'success' in self.add_session(cache_size=2)
 
-        client, sess, ctx, reused = self.connect()
+        _, sess, ctx, reused = self.connect()
         assert not reused, 'new connection cache'
 
-        client, _, _, reused = self.connect(ctx, sess)
+        _, _, _, reused = self.connect(ctx, sess)
         assert reused, 'cache'
 
-        client, _, _, reused = self.connect(ctx, sess)
+        _, _, _, reused = self.connect(ctx, sess)
         assert reused, 'cache 2'
 
         # check that at least one session of four is not reused
@@ -108,15 +108,15 @@ class TestTLSSession(TestApplicationTLS):
     def test_tls_session_timeout(self):
         assert 'success' in self.add_session(cache_size=5, timeout=1)
 
-        client, sess, ctx, reused = self.connect()
+        _, sess, ctx, reused = self.connect()
         assert not reused, 'new connection'
 
-        client, _, _, reused = self.connect(ctx, sess)
+        _, _, _, reused = self.connect(ctx, sess)
         assert reused, 'no timeout'
 
         time.sleep(3)
 
-        client, _, _, reused = self.connect(ctx, sess)
+        _, _, _, reused = self.connect(ctx, sess)
         assert not reused, 'timeout'
 
     def test_tls_session_invalid(self):
diff --git a/test/test_tls_tickets.py b/test/test_tls_tickets.py
index cca230f3..3962316e 100644
--- a/test/test_tls_tickets.py
+++ b/test/test_tls_tickets.py
@@ -7,7 +7,6 @@ from OpenSSL.SSL import (
     TLSv1_2_METHOD,
     Context,
     Connection,
-    Session,
     _lib,
 )
 from unit.applications.tls import TestApplicationTLS
@@ -22,7 +21,7 @@ class TestTLSTicket(TestApplicationTLS):
 49TZXi/Y4/8RSIO7QPsU51/HLR1gWIMhVM2m9yh93Bw='
 
     @pytest.fixture(autouse=True)
-    def setup_method_fixture(self, request):
+    def setup_method_fixture(self):
         self.certificate()
 
         listener_conf = {
diff --git a/test/unit/applications/proto.py b/test/unit/applications/proto.py
index f04ee408..f4d4afe4 100644
--- a/test/unit/applications/proto.py
+++ b/test/unit/applications/proto.py
@@ -26,7 +26,7 @@ class TestApplicationProto(TestControl):
 
     def wait_for_record(self, pattern, name='unit.log', wait=150, flags=re.M):
         with Log.open(name) as f:
-            for i in range(wait):
+            for _ in range(wait):
                 found = re.search(pattern, f.read(), flags)
 
                 if found is not None:
diff --git a/test/unit/check/isolation.py b/test/unit/check/isolation.py
index 4ebce893..829d956b 100644
--- a/test/unit/check/isolation.py
+++ b/test/unit/check/isolation.py
@@ -14,7 +14,6 @@ http = TestHTTP()
 
 
 def check_isolation():
-    test_conf = {"namespaces": {"credential": True}}
     available = option.available
 
     conf = ''
diff --git a/test/unit/utils.py b/test/unit/utils.py
index 985801e2..27e7dadc 100644
--- a/test/unit/utils.py
+++ b/test/unit/utils.py
@@ -24,7 +24,7 @@ def public_dir(path):
 
 
 def waitforfiles(*files, timeout=50):
-    for i in range(timeout):
+    for _ in range(timeout):
         wait = False
 
         for f in files:
@@ -41,10 +41,10 @@ def waitforfiles(*files, timeout=50):
 
 
 def waitforglob(pattern, count=1, timeout=50):
-    for i in range(timeout):
+    for _ in range(timeout):
         n = 0
 
-        for f in glob.glob(pattern):
+        for _ in glob.glob(pattern):
             n += 1
 
         if n == count:
@@ -56,7 +56,7 @@ def waitforglob(pattern, count=1, timeout=50):
 
 
 def waitforsocket(port):
-    for i in range(50):
+    for _ in range(50):
         with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
             try:
                 sock.settimeout(5)
@@ -102,7 +102,7 @@ def sysctl():
 
 
 def waitformount(template, timeout=50):
-    for i in range(timeout):
+    for _ in range(timeout):
         if findmnt().find(template) != -1:
             return True
 
@@ -112,7 +112,7 @@ def waitformount(template, timeout=50):
 
 
 def waitforunmount(template, timeout=50):
-    for i in range(timeout):
+    for _ in range(timeout):
         if findmnt().find(template) == -1:
             return True