diff --git a/.codecov.yml b/.codecov.yml
deleted file mode 100644
index 6cdbc288529128c494647322c30223266025b3ad..0000000000000000000000000000000000000000
--- a/.codecov.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-comment: false
-coverage:
-  status:
-    project:
-      default:
-        # basic
-        target: auto
-        threshold: null
-        base: auto 
-        # advanced
-        branches: null
-        if_no_uploads: error
-        if_not_found: success
-        if_ci_failed: error
-        only_pulls: false
-        flags: null
-        paths: null
-    patch:
-      default:
-        # basic
-        target: auto
-        threshold: null
-        base: auto 
-        # advanced
-        branches: null
-        if_no_uploads: error
-        if_not_found: success
-        if_ci_failed: error
-        only_pulls: false
-        flags: null
-        paths: null
diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index 4f50efc408d1609e21d8790233d8909e88ce0e63..0000000000000000000000000000000000000000
--- a/.coveragerc
+++ /dev/null
@@ -1,20 +0,0 @@
-[run]
-branch = True
-source =
-  searx/engines
-  searx/__init__.py
-  searx/autocomplete.py
-  searx/https_rewrite.py
-  searx/languages.py
-  searx/search.py
-  searx/testing.py
-  searx/utils.py
-  searx/webapp.py
-
-[report]
-show_missing = True
-exclude_lines =
-    if __name__ == .__main__.:
-
-[html]
-directory = coverage
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 29e70ddf3e65759c8af530a13940dc6e0fa77d37..96c4c67cb7f6958bceda8e6fd3ad8dfaad41f010 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,3 +27,4 @@ unittest:
     - ./manage.sh update_dev_packages
   script:
     - ./manage.sh unit_tests
+  coverage: '/TOTAL.*\s+(\d+%)$/'
diff --git a/Dockerfile.env b/Dockerfile.env
index 6d654297659fa8a7b7dc78d041cf7f84c235e9e3..23ab4ec191a236746422d8539696fa5a1861d065 100644
--- a/Dockerfile.env
+++ b/Dockerfile.env
@@ -1,8 +1,13 @@
 FROM fedora
 
+COPY requirements.txt requirements-dev.txt /
+
 RUN dnf install -y\
  wget\
  python2-pip\
  npm\
 && dnf groupinstall -y "Development Tools" \
-&& pip3 install pytest ipdb ipython
+&& pip3 install ipdb ipython \
+&& pip3 install -r /requirements.txt \
+&& pip3 install -r /requirements-dev.txt \
+&& rm -f /requirements.txt /requirements-dev.txt
diff --git a/manage.sh b/manage.sh
index fbbcc5cb70cfe213a66b5ca82e093856dd9ba714..4bfd69a398dfe9fc632b418a16fbdf68c0cee56f 100755
--- a/manage.sh
+++ b/manage.sh
@@ -26,46 +26,6 @@ update_dev_packages() {
     pip3 install -r "$BASE_DIR/requirements-dev.txt"
 }
 
-install_geckodriver() {
-    echo '[!] Checking geckodriver'
-    # TODO : check the current geckodriver version
-    set -e
-    geckodriver -V > /dev/null 2>&1 || NOTFOUND=1
-    set +e
-    if [ -z "$NOTFOUND" ]; then
-        return
-    fi
-    GECKODRIVER_VERSION="v0.19.1"
-    PLATFORM="`python3 -c "import platform; print(platform.system().lower(), platform.architecture()[0])"`"
-    case "$PLATFORM" in
-        "linux 32bit" | "linux2 32bit") ARCH="linux32";;
-        "linux 64bit" | "linux2 64bit") ARCH="linux64";;
-        "windows 32 bit") ARCH="win32";;
-        "windows 64 bit") ARCH="win64";;
-        "mac 64bit") ARCH="macos";;
-    esac
-    GECKODRIVER_URL="https://github.com/mozilla/geckodriver/releases/download/$GECKODRIVER_VERSION/geckodriver-$GECKODRIVER_VERSION-$ARCH.tar.gz";
-
-    if [ -z "$1" ]; then
-        if [ -z "$VIRTUAL_ENV" ]; then
-            printf "geckodriver can't be installed because VIRTUAL_ENV is not set, you should download it from\n  %s" "$GECKODRIVER_URL"
-            exit
-        else
-            GECKODRIVER_DIR="$VIRTUAL_ENV/bin"
-        fi
-    else
-        GECKODRIVER_DIR="$1"
-        mkdir -p -- "$GECKODRIVER_DIR"
-    fi
-
-    printf "Installing %s/geckodriver from\n  %s" "$GECKODRIVER_DIR" "$GECKODRIVER_URL"
-
-    FILE="`mktemp`"
-    wget -qO "$FILE" -- "$GECKODRIVER_URL" && tar xz -C "$GECKODRIVER_DIR" -f "$FILE" geckodriver
-    rm -- "$FILE"
-    chmod 777 -- "$GECKODRIVER_DIR/geckodriver"
-}
-
 locales() {
     pybabel compile -d "$SEARX_DIR/translations"
 }
@@ -80,7 +40,7 @@ pep8_check() {
 
 unit_tests() {
     echo '[!] Running unit tests'
-    python3 -m nose2 -s "$BASE_DIR/tests/unit"
+    PYTHONPATH="$BASE_DIR" pytest --cov=searx --disable-pytest-warnings "$BASE_DIR/tests/unit"
 }
 
 py_test_coverage() {
@@ -90,17 +50,10 @@ py_test_coverage() {
     && coverage html
 }
 
-robot_tests() {
-    echo '[!] Running robot tests'
-    PYTHONPATH="`pwd`" python3 "$SEARX_DIR/testing.py" robot
-}
-
 tests() {
     set -e
     pep8_check
     unit_tests
-    install_geckodriver
-    robot_tests
     set +e
 }
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index d95ed2cc0116315425a54c3b2801cfc347963d7f..0929b0ea85f841445b3d5bb496f4114e517641da 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,12 +1,6 @@
 babel==2.3.4
 mock==2.0.0
-nose2[coverage-plugin]
-cov-core==1.15.0
 pep8==1.7.0
-plone.testing==5.0.0
-splinter==0.7.5
-transifex-client==0.12.2
-unittest2==1.1.0
-zope.testrunner==4.5.1
-selenium==3.5.0
 mockredispy==2.9.3
+pytest==4.1.0
+pytest-cov==2.6.1
diff --git a/searx/settings_robot.yml b/searx/settings_robot.yml
deleted file mode 100644
index e5f163aef19330cb479dd548cd23c14227ae9ca5..0000000000000000000000000000000000000000
--- a/searx/settings_robot.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-general:
-    debug : False
-    instance_name : "searx_test"
-
-search:
-    safe_search : 0
-    autocomplete : ""
-    language: "en-US"
-
-server:
-    port : 11111
-    bind_address : 127.0.0.1
-    secret_key : "ultrasecretkey" # change this!
-    base_url : False
-    image_proxy : False
-    http_protocol_version : "1.0"
-
-ui:
-    static_path : ""
-    templates_path : ""
-    default_theme : oscar
-    default_locale : ""
-
-outgoing:
-    request_timeout : 1.0 # seconds
-    useragent_suffix : ""
-
-engines:
-  - name : general dummy
-    engine : dummy
-    categories : general
-    shortcut : gd
-
-  - name : dummy dummy
-    engine : dummy
-    categories : dummy
-    shortcut : dd
-
-locales:
-    en : English
-    hu : Magyar
diff --git a/searx/testing.py b/searx/testing.py
deleted file mode 100644
index 279ae0b7a41bbd2b703d4a1715e3ea628a6e0ea6..0000000000000000000000000000000000000000
--- a/searx/testing.py
+++ /dev/null
@@ -1,98 +0,0 @@
-# -*- coding: utf-8 -*-
-"""Shared testing code."""
-
-
-import os
-import subprocess
-import traceback
-
-
-from os.path import dirname, join, abspath
-
-from splinter import Browser
-from unittest2 import TestCase
-
-
-class SearxTestLayer:
-    """Base layer for non-robot tests."""
-
-    __name__ = 'SearxTestLayer'
-
-    def setUp(cls):
-        pass
-    setUp = classmethod(setUp)
-
-    def tearDown(cls):
-        pass
-    tearDown = classmethod(tearDown)
-
-    def testSetUp(cls):
-        pass
-    testSetUp = classmethod(testSetUp)
-
-    def testTearDown(cls):
-        pass
-    testTearDown = classmethod(testTearDown)
-
-
-class SearxRobotLayer():
-    """Searx Robot Test Layer"""
-
-    def setUp(self):
-        os.setpgrp()  # create new process group, become its leader
-
-        # get program paths
-        webapp = os.path.join(
-            os.path.abspath(os.path.dirname(os.path.realpath(__file__))),
-            'webapp.py'
-        )
-        exe = 'python'
-
-        # set robot settings path
-        os.environ['SEARX_SETTINGS_PATH'] = abspath(
-            dirname(__file__) + '/settings_robot.yml')
-
-        # run the server
-        self.server = subprocess.Popen(
-            [exe, webapp],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.STDOUT
-        )
-
-    def tearDown(self):
-        os.kill(self.server.pid, 9)
-        # remove previously set environment variable
-        del os.environ['SEARX_SETTINGS_PATH']
-
-
-# SEARXROBOTLAYER = SearxRobotLayer()
-def run_robot_tests(tests):
-    print('Running {0} tests'.format(len(tests)))
-    for test in tests:
-        with Browser() as browser:
-            test(browser)
-
-
-class SearxTestCase(TestCase):
-    """Base test case for non-robot tests."""
-
-    layer = SearxTestLayer
-
-
-if __name__ == '__main__':
-    import sys
-    # test cases
-    from tests import robot
-
-    base_dir = abspath(join(dirname(__file__), '../tests'))
-    if sys.argv[1] == 'robot':
-        test_layer = SearxRobotLayer()
-        errors = False
-        try:
-            test_layer.setUp()
-            run_robot_tests([getattr(robot, x) for x in dir(robot) if x.startswith('test_')])
-        except Exception:
-            errors = True
-            print('Error occured: {0}'.format(traceback.format_exc()))
-        test_layer.tearDown()
-        sys.exit(1 if errors else 0)
diff --git a/tests/__init__.py b/tests/__init__.py
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/tests/robot/__init__.py b/tests/robot/__init__.py
deleted file mode 100644
index 038a3196f2ef1b67c11d450db83f1d1601052dd7..0000000000000000000000000000000000000000
--- a/tests/robot/__init__.py
+++ /dev/null
@@ -1,75 +0,0 @@
-# -*- coding: utf-8 -*-
-
-from time import sleep
-
-url = "http://localhost:11111/"
-
-
-def test_index(browser):
-    # Visit URL
-    browser.visit(url)
-    assert browser.is_text_present('about')
-
-
-def test_404(browser):
-    # Visit URL
-    browser.visit(url + 'missing_link')
-    assert browser.is_text_present('Page not found')
-
-
-def test_about(browser):
-    browser.visit(url)
-    browser.click_link_by_text('about')
-    assert browser.is_text_present('Why use searx?')
-
-
-def test_preferences(browser):
-    browser.visit(url)
-    browser.click_link_by_text('preferences')
-    assert browser.is_text_present('Preferences')
-    assert browser.is_text_present('Cookies')
-
-    assert browser.is_element_present_by_xpath('//label[@for="checkbox_dummy"]')
-
-
-def test_preferences_engine_select(browser):
-    browser.visit(url)
-    browser.click_link_by_text('preferences')
-
-    assert browser.is_element_present_by_xpath('//a[@href="#tab_engine"]')
-    browser.find_by_xpath('//a[@href="#tab_engine"]').first.click()
-
-    assert not browser.find_by_xpath('//input[@id="engine_general_dummy__general"]').first.checked
-    browser.find_by_xpath('//label[@for="engine_general_dummy__general"]').first.check()
-    browser.find_by_xpath('//input[@value="save"]').first.click()
-
-    # waiting for the redirect - without this the test is flaky..
-    sleep(1)
-
-    browser.visit(url)
-    browser.click_link_by_text('preferences')
-    browser.find_by_xpath('//a[@href="#tab_engine"]').first.click()
-
-    assert browser.find_by_xpath('//input[@id="engine_general_dummy__general"]').first.checked
-
-
-def test_preferences_locale(browser):
-    browser.visit(url)
-    browser.click_link_by_text('preferences')
-
-    browser.select('locale', 'hu')
-    browser.find_by_xpath('//input[@value="save"]').first.click()
-
-    # waiting for the redirect - without this the test is flaky..
-    sleep(1)
-
-    browser.visit(url)
-    browser.click_link_by_text('beállítások')
-    browser.is_text_present('Beállítások')
-
-
-def test_search(browser):
-    browser.visit(url)
-    browser.fill('q', 'test search query')
-    browser.find_by_xpath('//button[@type="submit"]').first.click()
-    assert browser.is_text_present('didn\'t find any results')
diff --git a/tests/test_robot.py b/tests/test_robot.py
deleted file mode 100644
index b48153fe48404a9cb91c546e0c8d77358aeb21e1..0000000000000000000000000000000000000000
--- a/tests/test_robot.py
+++ /dev/null
@@ -1,23 +0,0 @@
-# -*- coding: utf-8 -*-
-
-import os
-import unittest2 as unittest
-from plone.testing import layered
-from robotsuite import RobotTestSuite
-from searx.testing import SEARXROBOTLAYER
-
-
-def test_suite():
-    suite = unittest.TestSuite()
-    current_dir = os.path.abspath(os.path.dirname(__file__))
-    robot_dir = os.path.join(current_dir, 'robot')
-    tests = [
-        os.path.join('robot', f) for f in
-        os.listdir(robot_dir) if f.endswith('.robot') and
-        f.startswith('test_')
-    ]
-    for test in tests:
-        suite.addTests([
-            layered(RobotTestSuite(test), layer=SEARXROBOTLAYER),
-        ])
-    return suite
diff --git a/tests/unit/engines/pubmed.py b/tests/unit/engines/pubmed.py
index 17f3a253f922c38041080af1857759d76be42d53..b2a657f93c1eef1cb650f87e708562d8c6ebb7b2 100644
--- a/tests/unit/engines/pubmed.py
+++ b/tests/unit/engines/pubmed.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import pubmed
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestPubmedEngine(SearxTestCase):
+class TestPubmedEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_acgsou.py b/tests/unit/engines/test_acgsou.py
index fa920dcdad9a6202224025578f417a2f483c2920..57a800527aba27179b6d1f85ea7b1a1a02928c15 100644
--- a/tests/unit/engines/test_acgsou.py
+++ b/tests/unit/engines/test_acgsou.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import acgsou
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestAcgsouEngine(SearxTestCase):
+class TestAcgsouEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_archlinux.py b/tests/unit/engines/test_archlinux.py
index f2ba483c13ca63e27704701236c6f56c1c16fcc2..bc1b7a07ed873f50c2b07906ac4e5724d05611be 100644
--- a/tests/unit/engines/test_archlinux.py
+++ b/tests/unit/engines/test_archlinux.py
@@ -1,7 +1,7 @@
 from collections import defaultdict
 import mock
 from searx.engines import archlinux
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 domains = {
     'en': 'https://wiki.archlinux.org',
@@ -13,7 +13,7 @@ domains = {
 }
 
 
-class TestArchLinuxEngine(SearxTestCase):
+class TestArchLinuxEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_arxiv.py b/tests/unit/engines/test_arxiv.py
index b32c0e605a758a762c771e6684a1c80c6b436ad4..0cba7641d904b47f3650055d705e605ca6342490 100644
--- a/tests/unit/engines/test_arxiv.py
+++ b/tests/unit/engines/test_arxiv.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import arxiv
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBaseEngine(SearxTestCase):
+class TestBaseEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_base.py b/tests/unit/engines/test_base.py
index f6e7cb6c5de762036f527642f1185697380ca66e..71c560ca6b2526ac7b821d356f52c8937c3fdcf5 100644
--- a/tests/unit/engines/test_base.py
+++ b/tests/unit/engines/test_base.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import base
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBaseEngine(SearxTestCase):
+class TestBaseEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_bing.py b/tests/unit/engines/test_bing.py
index 34989d8db0714dafcf45ca4c86dcb293f5ef2547..1fcb7382277256fd34506f5e80f1f360de2041b5 100644
--- a/tests/unit/engines/test_bing.py
+++ b/tests/unit/engines/test_bing.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import bing
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBingEngine(SearxTestCase):
+class TestBingEngine(TestCase):
 
     def test_request(self):
         bing.supported_languages = ['en', 'fr', 'zh-CHS', 'zh-CHT', 'pt-PT', 'pt-BR']
diff --git a/tests/unit/engines/test_bing_images.py b/tests/unit/engines/test_bing_images.py
index cb1d550d908a6fbf52a9875339af516caa6730e3..46e35b439a68a3b1757dc413f7ba0ff8675f479e 100644
--- a/tests/unit/engines/test_bing_images.py
+++ b/tests/unit/engines/test_bing_images.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import bing_images
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBingImagesEngine(SearxTestCase):
+class TestBingImagesEngine(TestCase):
 
     def test_request(self):
         bing_images.supported_languages = ['fr-FR', 'en-US']
diff --git a/tests/unit/engines/test_bing_news.py b/tests/unit/engines/test_bing_news.py
index e5f80c00bc9541798fca74f6ef180f87df8a73d2..a02e75e5eb5cbbf82133511b508df8b304b7364d 100644
--- a/tests/unit/engines/test_bing_news.py
+++ b/tests/unit/engines/test_bing_news.py
@@ -1,11 +1,11 @@
 from collections import defaultdict
 import mock
 from searx.engines import bing_news
-from searx.testing import SearxTestCase
+from unittest import TestCase
 import lxml
 
 
-class TestBingNewsEngine(SearxTestCase):
+class TestBingNewsEngine(TestCase):
 
     def test_request(self):
         bing_news.supported_languages = ['en', 'fr']
diff --git a/tests/unit/engines/test_bing_videos.py b/tests/unit/engines/test_bing_videos.py
index 24387c888502c666bcea830147429beb09231b75..cd5d3a3afb3e946c3218408c0c2899d9df08f083 100644
--- a/tests/unit/engines/test_bing_videos.py
+++ b/tests/unit/engines/test_bing_videos.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import bing_videos
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBingVideosEngine(SearxTestCase):
+class TestBingVideosEngine(TestCase):
 
     def test_request(self):
         bing_videos.supported_languages = ['fr-FR', 'en-US']
diff --git a/tests/unit/engines/test_btdigg.py b/tests/unit/engines/test_btdigg.py
index 4947b71da40946c54169fba2bab040949ac1094d..876388f0fa532dbe335322eb285264d467a226dc 100644
--- a/tests/unit/engines/test_btdigg.py
+++ b/tests/unit/engines/test_btdigg.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import btdigg
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestBtdiggEngine(SearxTestCase):
+class TestBtdiggEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_currency_convert.py b/tests/unit/engines/test_currency_convert.py
index e066fde0849057ee5e1599ab8578c180f5db9f2d..dee74511027832beb1db2822353ed6ab0345dae4 100644
--- a/tests/unit/engines/test_currency_convert.py
+++ b/tests/unit/engines/test_currency_convert.py
@@ -2,10 +2,10 @@ from collections import defaultdict
 from datetime import datetime
 import mock
 from searx.engines import currency_convert
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestCurrencyConvertEngine(SearxTestCase):
+class TestCurrencyConvertEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_dailymotion.py b/tests/unit/engines/test_dailymotion.py
index 63659490e487f1b30a82048e7f10ba6c29a903b5..9a5a17757dd3f95e7fd6cd0e73567da1e214f5ee 100644
--- a/tests/unit/engines/test_dailymotion.py
+++ b/tests/unit/engines/test_dailymotion.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import dailymotion
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDailymotionEngine(SearxTestCase):
+class TestDailymotionEngine(TestCase):
 
     def test_request(self):
         dailymotion.supported_languages = ['en', 'fr']
diff --git a/tests/unit/engines/test_deezer.py b/tests/unit/engines/test_deezer.py
index 5b9f55c331d8f665ce6471f78f3b8b5cad3b00f0..aaa1af90710385162de4234a858071510f51e615 100644
--- a/tests/unit/engines/test_deezer.py
+++ b/tests/unit/engines/test_deezer.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import deezer
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDeezerEngine(SearxTestCase):
+class TestDeezerEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_deviantart.py b/tests/unit/engines/test_deviantart.py
index bd2cf182f861ddf1ba750c1b1797d5448321a3ac..729718512e5a47eeaebe8c0a97384dca41af2401 100644
--- a/tests/unit/engines/test_deviantart.py
+++ b/tests/unit/engines/test_deviantart.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import deviantart
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDeviantartEngine(SearxTestCase):
+class TestDeviantartEngine(TestCase):
 
     def test_request(self):
         dicto = defaultdict(dict)
diff --git a/tests/unit/engines/test_digbt.py b/tests/unit/engines/test_digbt.py
index 3fec6773d48ec51489c083c8f2da7d087de1919a..88401b6ede70264708f11f4c6efc34217dffbf25 100644
--- a/tests/unit/engines/test_digbt.py
+++ b/tests/unit/engines/test_digbt.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import digbt
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDigBTEngine(SearxTestCase):
+class TestDigBTEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_digg.py b/tests/unit/engines/test_digg.py
index 6e7c9cc991e662f1066a42e3c09696d36d933761..2ce61a019b5d1d796215ab41deb8a1df5aa0961c 100644
--- a/tests/unit/engines/test_digg.py
+++ b/tests/unit/engines/test_digg.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import digg
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDiggEngine(SearxTestCase):
+class TestDiggEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_doku.py b/tests/unit/engines/test_doku.py
index 115bdd8e0a61bf83145a34f91c651e56b645140b..af5b4802fbd8cb100a0f7cfed3dff7679a84ba6c 100644
--- a/tests/unit/engines/test_doku.py
+++ b/tests/unit/engines/test_doku.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import doku
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDokuEngine(SearxTestCase):
+class TestDokuEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_duckduckgo.py b/tests/unit/engines/test_duckduckgo.py
index c39bc1bf33d76d4a483b1d71eed25e5a4480da8a..03ad258d4e593ac79fcf2b0518dcfb980f030146 100644
--- a/tests/unit/engines/test_duckduckgo.py
+++ b/tests/unit/engines/test_duckduckgo.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import load_engine, duckduckgo
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDuckduckgoEngine(SearxTestCase):
+class TestDuckduckgoEngine(TestCase):
 
     def test_request(self):
         duckduckgo = load_engine({'engine': 'duckduckgo', 'name': 'duckduckgo'})
diff --git a/tests/unit/engines/test_duckduckgo_definitions.py b/tests/unit/engines/test_duckduckgo_definitions.py
index 37587ed8dd6d3643542e18b2c584817b6560f9c0..2c432a5b8d052ebbf56ee18e7ac5c18d420ff977 100644
--- a/tests/unit/engines/test_duckduckgo_definitions.py
+++ b/tests/unit/engines/test_duckduckgo_definitions.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import duckduckgo_definitions
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDDGDefinitionsEngine(SearxTestCase):
+class TestDDGDefinitionsEngine(TestCase):
 
     def test_result_to_text(self):
         url = ''
diff --git a/tests/unit/engines/test_duckduckgo_images.py b/tests/unit/engines/test_duckduckgo_images.py
index 35bb029f45e83b983d9953575eb2db113ebf1d31..f77b27c7c960ed00dff0815c89b189129a1283c0 100644
--- a/tests/unit/engines/test_duckduckgo_images.py
+++ b/tests/unit/engines/test_duckduckgo_images.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import duckduckgo_images
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDuckduckgoImagesEngine(SearxTestCase):
+class TestDuckduckgoImagesEngine(TestCase):
 
     def test_request(self):
         duckduckgo_images.supported_languages = ['de-CH', 'en-US']
diff --git a/tests/unit/engines/test_duden.py b/tests/unit/engines/test_duden.py
index d9bbfef8b7cd228ce1bb9a3a26be1b84d9f80dab..44cd17014b59ba8a04020e6f58d41ef5dc25eef1 100644
--- a/tests/unit/engines/test_duden.py
+++ b/tests/unit/engines/test_duden.py
@@ -1,11 +1,11 @@
 from collections import defaultdict
 import mock
 from searx.engines import duden
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from datetime import datetime
 
 
-class TestDudenEngine(SearxTestCase):
+class TestDudenEngine(TestCase):
 
     def test_request(self):
         query = 'Haus'
diff --git a/tests/unit/engines/test_dummy.py b/tests/unit/engines/test_dummy.py
index 9399beaaf70ed31136ef2f4384a9cecf2cd9b6ec..7fe1d0a4e4b5744ecf26e74022b5b3cb78c7bc9a 100644
--- a/tests/unit/engines/test_dummy.py
+++ b/tests/unit/engines/test_dummy.py
@@ -1,8 +1,8 @@
 from searx.engines import dummy
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestDummyEngine(SearxTestCase):
+class TestDummyEngine(TestCase):
 
     def test_request(self):
         test_params = [
diff --git a/tests/unit/engines/test_faroo.py b/tests/unit/engines/test_faroo.py
index 0cc8bc3e0f157efaee070c44ed019c8b8653199b..750c32a74198d6d3bbd7dc72af4beda74f036407 100644
--- a/tests/unit/engines/test_faroo.py
+++ b/tests/unit/engines/test_faroo.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import faroo
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFarooEngine(SearxTestCase):
+class TestFarooEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_fdroid.py b/tests/unit/engines/test_fdroid.py
index d75f4f0b48053c45efc32f5d3033ea7db71709bd..f7ca46297ba99c329a03ec18da720f140f9e2cf6 100644
--- a/tests/unit/engines/test_fdroid.py
+++ b/tests/unit/engines/test_fdroid.py
@@ -1,10 +1,10 @@
 import mock
 from collections import defaultdict
 from searx.engines import fdroid
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFdroidEngine(SearxTestCase):
+class TestFdroidEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_flickr.py b/tests/unit/engines/test_flickr.py
index be97647ce7834a2b31b03c578f801622f61628d6..12fcbc248518ac61026fd195e1542614349db03c 100644
--- a/tests/unit/engines/test_flickr.py
+++ b/tests/unit/engines/test_flickr.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import flickr
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFlickrEngine(SearxTestCase):
+class TestFlickrEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_flickr_noapi.py b/tests/unit/engines/test_flickr_noapi.py
index 5f8b069e3faacf6169986e43698dc84dcd40dd4d..3fa4e7eba6fb1f3aaab1c72a861104aff596d87a 100644
--- a/tests/unit/engines/test_flickr_noapi.py
+++ b/tests/unit/engines/test_flickr_noapi.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import flickr_noapi
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFlickrNoapiEngine(SearxTestCase):
+class TestFlickrNoapiEngine(TestCase):
 
     def test_build_flickr_url(self):
         url = flickr_noapi.build_flickr_url("uid", "pid")
diff --git a/tests/unit/engines/test_framalibre.py b/tests/unit/engines/test_framalibre.py
index f0d0a9ebbf51f5158f7009c78f34cf1684fb4baa..fe8402c5429ba7cac08fc42850ef2541edfb7799 100644
--- a/tests/unit/engines/test_framalibre.py
+++ b/tests/unit/engines/test_framalibre.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import framalibre
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFramalibreEngine(SearxTestCase):
+class TestFramalibreEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_frinkiac.py b/tests/unit/engines/test_frinkiac.py
index 49344cad16d5b24d037061beb8860d91f54c9ec1..97fe1f72e7d29de96aa30807b392d50c131343b4 100644
--- a/tests/unit/engines/test_frinkiac.py
+++ b/tests/unit/engines/test_frinkiac.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import frinkiac
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestFrinkiacEngine(SearxTestCase):
+class TestFrinkiacEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_genius.py b/tests/unit/engines/test_genius.py
index ea721943a1b08f1cfeff1159893ebbdd7c6b4dde..31c33e47f2fc03b103a3ab344d9ceea210705790 100644
--- a/tests/unit/engines/test_genius.py
+++ b/tests/unit/engines/test_genius.py
@@ -2,10 +2,10 @@ from collections import defaultdict
 import mock
 from datetime import datetime
 from searx.engines import genius
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGeniusEngine(SearxTestCase):
+class TestGeniusEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_gigablast.py b/tests/unit/engines/test_gigablast.py
index f0ddb63bcd88979a38cb358734b0c40c59ab205d..aef18daadaf51ead7199e09bd286ca7c815aa727 100644
--- a/tests/unit/engines/test_gigablast.py
+++ b/tests/unit/engines/test_gigablast.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import gigablast
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGigablastEngine(SearxTestCase):
+class TestGigablastEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_github.py b/tests/unit/engines/test_github.py
index 460be8c3df89f3da38e9491d42c440a111eafde9..6983ca9b7aaedb6822d9159903840217f0db60eb 100644
--- a/tests/unit/engines/test_github.py
+++ b/tests/unit/engines/test_github.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import github
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGitHubEngine(SearxTestCase):
+class TestGitHubEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_google.py b/tests/unit/engines/test_google.py
index 3c4e2837f080505a4493ebdd0799935979e1c3ac..749e1f0bc7d3e3c88acfa6d9f3a2aee7c88eb1fd 100644
--- a/tests/unit/engines/test_google.py
+++ b/tests/unit/engines/test_google.py
@@ -3,10 +3,10 @@ from collections import defaultdict
 import mock
 import lxml
 from searx.engines import google
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGoogleEngine(SearxTestCase):
+class TestGoogleEngine(TestCase):
 
     def mock_response(self, text):
         response = mock.Mock(text=text, url='https://www.google.com/search?q=test&start=0&gbv=1&gws_rd=cr')
diff --git a/tests/unit/engines/test_google_images.py b/tests/unit/engines/test_google_images.py
index 8366e1b0883d93c4bcd6547af3b1d6cb609eae8c..7a1fcb9febcfca0c5ed878fc189a7cbb4636ad00 100644
--- a/tests/unit/engines/test_google_images.py
+++ b/tests/unit/engines/test_google_images.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import google_images
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGoogleImagesEngine(SearxTestCase):
+class TestGoogleImagesEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_google_news.py b/tests/unit/engines/test_google_news.py
index f6eaff76a5dc013ef89161af6264b68982c85c00..db85d61c3ddd12adc6f0d5bf57640d954b91e463 100644
--- a/tests/unit/engines/test_google_news.py
+++ b/tests/unit/engines/test_google_news.py
@@ -3,10 +3,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import google_news
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGoogleNewsEngine(SearxTestCase):
+class TestGoogleNewsEngine(TestCase):
 
     def test_request(self):
         google_news.supported_languages = ['en-US', 'fr-FR']
diff --git a/tests/unit/engines/test_google_videos.py b/tests/unit/engines/test_google_videos.py
index cdc6fcd4225dc62f6887c260020691de329a519c..fcb3893fb980f9d794bc75547f09888331e88baf 100644
--- a/tests/unit/engines/test_google_videos.py
+++ b/tests/unit/engines/test_google_videos.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import google_videos
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestGoogleVideosEngine(SearxTestCase):
+class TestGoogleVideosEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_ina.py b/tests/unit/engines/test_ina.py
index 521a6ff8780ff1759c21d740944fa2881b2b158e..074dd0e9cdac0b7fe90162c58274cf879fea515b 100644
--- a/tests/unit/engines/test_ina.py
+++ b/tests/unit/engines/test_ina.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import ina
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestInaEngine(SearxTestCase):
+class TestInaEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_kickass.py b/tests/unit/engines/test_kickass.py
index 3a75c66974ebc8855998e95aa7e27ee575a6cab1..ba2239a139144fb0a24c899716f47852bee45052 100644
--- a/tests/unit/engines/test_kickass.py
+++ b/tests/unit/engines/test_kickass.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import kickass
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestKickassEngine(SearxTestCase):
+class TestKickassEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_mediawiki.py b/tests/unit/engines/test_mediawiki.py
index 1fc43dea32eb5220e99a772874dc68860021fe9e..c8c6a8eb6d7d09361b7645378c843c98a79eca44 100644
--- a/tests/unit/engines/test_mediawiki.py
+++ b/tests/unit/engines/test_mediawiki.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import mediawiki
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestMediawikiEngine(SearxTestCase):
+class TestMediawikiEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_mixcloud.py b/tests/unit/engines/test_mixcloud.py
index 9c79a478e2537573de057c11301890b66c8d7f4e..ccde14dc0bcd5974c7e77d1caa05e1174e48963b 100644
--- a/tests/unit/engines/test_mixcloud.py
+++ b/tests/unit/engines/test_mixcloud.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import mixcloud
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestMixcloudEngine(SearxTestCase):
+class TestMixcloudEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_nyaa.py b/tests/unit/engines/test_nyaa.py
index 6dcafc6b712226387f2dce677c7075108bef279e..a017d9621aaea44f6aad50ed7303a0d512e5d8f5 100644
--- a/tests/unit/engines/test_nyaa.py
+++ b/tests/unit/engines/test_nyaa.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import nyaa
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestNyaaEngine(SearxTestCase):
+class TestNyaaEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_openstreetmap.py b/tests/unit/engines/test_openstreetmap.py
index 7b7783f040fa3527aeecc18db7f7eac4a961911b..f85fabe326629f95b928e98c031ff905e5a9b54d 100644
--- a/tests/unit/engines/test_openstreetmap.py
+++ b/tests/unit/engines/test_openstreetmap.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import openstreetmap
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestOpenstreetmapEngine(SearxTestCase):
+class TestOpenstreetmapEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_pdbe.py b/tests/unit/engines/test_pdbe.py
index ea5adf9dcf211444757f3d37a2f7890b7c81fc5e..6558a9245ebe4aea0e575dfb780bd152875ff5b5 100644
--- a/tests/unit/engines/test_pdbe.py
+++ b/tests/unit/engines/test_pdbe.py
@@ -1,10 +1,10 @@
 import mock
 from collections import defaultdict
 from searx.engines import pdbe
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestPdbeEngine(SearxTestCase):
+class TestPdbeEngine(TestCase):
     def test_request(self):
         query = 'test_query'
         dicto = defaultdict(dict)
diff --git a/tests/unit/engines/test_photon.py b/tests/unit/engines/test_photon.py
index 002000d50795e88ce7b9deb0c1de5a4862874cc8..f86b1c4801fdc08cc008e6c5f18e98c27fb2482d 100644
--- a/tests/unit/engines/test_photon.py
+++ b/tests/unit/engines/test_photon.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import photon
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestPhotonEngine(SearxTestCase):
+class TestPhotonEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_piratebay.py b/tests/unit/engines/test_piratebay.py
index 89a78e79653fba5632543c5572cadfdc8f1c10d9..1d985f9cc901da29795e5b969b32a856a2d9672d 100644
--- a/tests/unit/engines/test_piratebay.py
+++ b/tests/unit/engines/test_piratebay.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import piratebay
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestPiratebayEngine(SearxTestCase):
+class TestPiratebayEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_qwant.py b/tests/unit/engines/test_qwant.py
index 86bfb22dafdab5f77069c12b8b8d44ccdb2d6091..c458f1f0a57f65d57acbb36501e6d5dbc8c4266c 100644
--- a/tests/unit/engines/test_qwant.py
+++ b/tests/unit/engines/test_qwant.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import qwant
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestQwantEngine(SearxTestCase):
+class TestQwantEngine(TestCase):
 
     def test_request(self):
         qwant.supported_languages = ['en-US', 'fr-CA', 'fr-FR']
diff --git a/tests/unit/engines/test_reddit.py b/tests/unit/engines/test_reddit.py
index 9c94f4e2b70343b33415857952fbbb474cb1a632..53e25f5ee8c0f70d826f6d1aeae6fea55953bf81 100644
--- a/tests/unit/engines/test_reddit.py
+++ b/tests/unit/engines/test_reddit.py
@@ -1,11 +1,11 @@
 from collections import defaultdict
 import mock
 from searx.engines import reddit
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from datetime import datetime
 
 
-class TestRedditEngine(SearxTestCase):
+class TestRedditEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_scanr_structures.py b/tests/unit/engines/test_scanr_structures.py
index 2e8c097b3bd2c6e83a86d434c0d2c2bfbef6af3d..04e442a16e9a7247ed7710082cd7c101bf89e449 100644
--- a/tests/unit/engines/test_scanr_structures.py
+++ b/tests/unit/engines/test_scanr_structures.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import scanr_structures
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestScanrStructuresEngine(SearxTestCase):
+class TestScanrStructuresEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_searchcode_code.py b/tests/unit/engines/test_searchcode_code.py
index 955aea111e3df2bf2cd0f2222cab9c18d1d2206c..911c0dd2274a6cb2ab41f697a0976424716639bd 100644
--- a/tests/unit/engines/test_searchcode_code.py
+++ b/tests/unit/engines/test_searchcode_code.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import searchcode_code
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestSearchcodeCodeEngine(SearxTestCase):
+class TestSearchcodeCodeEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_searchcode_doc.py b/tests/unit/engines/test_searchcode_doc.py
index d02bb7a441b1127df6e7442d0eae6cfa004f3542..cda9fd4afe30f05599e2bf940948e1963bb84589 100644
--- a/tests/unit/engines/test_searchcode_doc.py
+++ b/tests/unit/engines/test_searchcode_doc.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import searchcode_doc
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestSearchcodeDocEngine(SearxTestCase):
+class TestSearchcodeDocEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_seedpeer.py b/tests/unit/engines/test_seedpeer.py
index 37b2de8e4d9e7782da9a2273e8c137f1879b8935..486ecad7acbafdfbd93074765c7a6edb1098b42e 100644
--- a/tests/unit/engines/test_seedpeer.py
+++ b/tests/unit/engines/test_seedpeer.py
@@ -1,11 +1,11 @@
 import mock
 from collections import defaultdict
 from searx.engines import seedpeer
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from datetime import datetime
 
 
-class TestSeedPeerEngine(SearxTestCase):
+class TestSeedPeerEngine(TestCase):
 
     html = ''
     with open('./tests/unit/engines/seedpeer_fixture.html') as fixture:
diff --git a/tests/unit/engines/test_soundcloud.py b/tests/unit/engines/test_soundcloud.py
index 3077d3b4b4dc3d8b18fbbeacba932636ad1b1e6e..bf06965badb0c06b03b8c341083d3acb3f5ec679 100644
--- a/tests/unit/engines/test_soundcloud.py
+++ b/tests/unit/engines/test_soundcloud.py
@@ -1,11 +1,11 @@
 from collections import defaultdict
 import mock
 from searx.engines import soundcloud
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from searx.url_utils import quote_plus
 
 
-class TestSoundcloudEngine(SearxTestCase):
+class TestSoundcloudEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_spotify.py b/tests/unit/engines/test_spotify.py
index e37c344d2154df6809b86b472b0c3f22c47eea5c..aaed5176374f7aa206505e39ee2cd78725e9b942 100644
--- a/tests/unit/engines/test_spotify.py
+++ b/tests/unit/engines/test_spotify.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import spotify
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestSpotifyEngine(SearxTestCase):
+class TestSpotifyEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_stackoverflow.py b/tests/unit/engines/test_stackoverflow.py
index 18a1ff4bdb9e9df92e8b243658c149a15d84ac11..f71920bc55f7d9316216d076105b2ab5f694bd98 100644
--- a/tests/unit/engines/test_stackoverflow.py
+++ b/tests/unit/engines/test_stackoverflow.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import stackoverflow
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestStackoverflowEngine(SearxTestCase):
+class TestStackoverflowEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_startpage.py b/tests/unit/engines/test_startpage.py
index f3571a5f4dffa21e7921692dc7068a453d0c8bdf..9b23bac1fd0130a5e3e3cc2f14a92a62278150fb 100644
--- a/tests/unit/engines/test_startpage.py
+++ b/tests/unit/engines/test_startpage.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import startpage
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestStartpageEngine(SearxTestCase):
+class TestStartpageEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_subtitleseeker.py b/tests/unit/engines/test_subtitleseeker.py
index 96b253943d63f4ba3f3c0ff968eda06f3c876719..eeeabc49a38ac3fb1ea30930b52050443bdc6644 100644
--- a/tests/unit/engines/test_subtitleseeker.py
+++ b/tests/unit/engines/test_subtitleseeker.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import subtitleseeker
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestSubtitleseekerEngine(SearxTestCase):
+class TestSubtitleseekerEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_swisscows.py b/tests/unit/engines/test_swisscows.py
index 8fa5956637d05a30d716111d0de7b2778008a6ad..b3a65603eb6f137ba001ca94f0ba53158e917150 100644
--- a/tests/unit/engines/test_swisscows.py
+++ b/tests/unit/engines/test_swisscows.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import swisscows
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestSwisscowsEngine(SearxTestCase):
+class TestSwisscowsEngine(TestCase):
 
     def test_request(self):
         swisscows.supported_languages = ['de-AT', 'de-DE']
diff --git a/tests/unit/engines/test_tokyotoshokan.py b/tests/unit/engines/test_tokyotoshokan.py
index b5c6fad17b25b358cf8592e0856a90b737db5977..991b43ea215f4d77c62baf4ea54bebe76fcaad0d 100644
--- a/tests/unit/engines/test_tokyotoshokan.py
+++ b/tests/unit/engines/test_tokyotoshokan.py
@@ -1,11 +1,11 @@
 import mock
 from collections import defaultdict
 from searx.engines import tokyotoshokan
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from datetime import datetime
 
 
-class TestTokyotoshokanEngine(SearxTestCase):
+class TestTokyotoshokanEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_torrentz.py b/tests/unit/engines/test_torrentz.py
index f483bf68cc2175ff0387228235c55c69f4447935..35256a81310b599267f08d4fac458cdbdc275ada 100644
--- a/tests/unit/engines/test_torrentz.py
+++ b/tests/unit/engines/test_torrentz.py
@@ -1,11 +1,11 @@
 import mock
 from collections import defaultdict
 from searx.engines import torrentz
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from datetime import datetime
 
 
-class TestTorrentzEngine(SearxTestCase):
+class TestTorrentzEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_twitter.py b/tests/unit/engines/test_twitter.py
index b3818714f36371afce6fdc0dfeac14390be27ab2..88baa1df41bada9165637e13d812ff7f8be662f8 100644
--- a/tests/unit/engines/test_twitter.py
+++ b/tests/unit/engines/test_twitter.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import twitter
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestTwitterEngine(SearxTestCase):
+class TestTwitterEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_vimeo.py b/tests/unit/engines/test_vimeo.py
index 549ea114cde1767128af0549ec8d010890c7cc13..ac492094afdfca49684110a221b42319e06d3ef4 100644
--- a/tests/unit/engines/test_vimeo.py
+++ b/tests/unit/engines/test_vimeo.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import vimeo
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestVimeoEngine(SearxTestCase):
+class TestVimeoEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_wikidata.py b/tests/unit/engines/test_wikidata.py
index bcceb5e54e0216a554816cd79df66b10b42cfed9..a8ef7094a192ce59db0e97e9c28151cc7f8cb77e 100644
--- a/tests/unit/engines/test_wikidata.py
+++ b/tests/unit/engines/test_wikidata.py
@@ -3,10 +3,10 @@ from lxml.html import fromstring
 from collections import defaultdict
 import mock
 from searx.engines import wikidata
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestWikidataEngine(SearxTestCase):
+class TestWikidataEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_wikipedia.py b/tests/unit/engines/test_wikipedia.py
index f720d6afc11fd3fa2b95b460920a5b4647762a1b..0b79975a9d4a4380a5145ee0111817be8ec30b6b 100644
--- a/tests/unit/engines/test_wikipedia.py
+++ b/tests/unit/engines/test_wikipedia.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import wikipedia
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestWikipediaEngine(SearxTestCase):
+class TestWikipediaEngine(TestCase):
 
     def test_request(self):
         wikipedia.supported_languages = ['fr', 'en']
diff --git a/tests/unit/engines/test_wolframalpha_api.py b/tests/unit/engines/test_wolframalpha_api.py
index 3f3f93a4f30cbdcfd784f4a08a78b29ee42d96a3..586f9061fca2a1aeca3e6840ce38abb17d75d6ba 100644
--- a/tests/unit/engines/test_wolframalpha_api.py
+++ b/tests/unit/engines/test_wolframalpha_api.py
@@ -3,10 +3,10 @@ from collections import defaultdict
 import mock
 from requests import Request
 from searx.engines import wolframalpha_api
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestWolframAlphaAPIEngine(SearxTestCase):
+class TestWolframAlphaAPIEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_wolframalpha_noapi.py b/tests/unit/engines/test_wolframalpha_noapi.py
index 982edd9f2fb0f942da8d7214ca33dec38061925e..d60ed0625642a3c4171b09f511272a281f384044 100644
--- a/tests/unit/engines/test_wolframalpha_noapi.py
+++ b/tests/unit/engines/test_wolframalpha_noapi.py
@@ -3,10 +3,10 @@ from collections import defaultdict
 import mock
 from requests import Request
 from searx.engines import wolframalpha_noapi
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestWolframAlphaNoAPIEngine(SearxTestCase):
+class TestWolframAlphaNoAPIEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_www1x.py b/tests/unit/engines/test_www1x.py
index 9df8de6bf5906ae1debc78fc91b97aaa490dc4ab..67081a3a592cf4b0dd96451657ca87897e01b709 100644
--- a/tests/unit/engines/test_www1x.py
+++ b/tests/unit/engines/test_www1x.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import www1x
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestWww1xEngine(SearxTestCase):
+class TestWww1xEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_yacy.py b/tests/unit/engines/test_yacy.py
index a60614d3d83f77e572c9ae853171141d7e077a81..922ab8a636286a43db850b96cb5ef90c663dea22 100644
--- a/tests/unit/engines/test_yacy.py
+++ b/tests/unit/engines/test_yacy.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import yacy
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestYacyEngine(SearxTestCase):
+class TestYacyEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_yahoo.py b/tests/unit/engines/test_yahoo.py
index 5037bfc7d7af77c57f750399ed485b2088601fea..479d5599ccf80250ec30583d9b3971f3739a9d95 100644
--- a/tests/unit/engines/test_yahoo.py
+++ b/tests/unit/engines/test_yahoo.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import yahoo
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestYahooEngine(SearxTestCase):
+class TestYahooEngine(TestCase):
 
     def test_parse_url(self):
         test_url = 'http://r.search.yahoo.com/_ylt=A0LEb9JUSKcAEGRXNyoA;_ylu=X3oDMTEzZm1qazYwBHNlYwNzcgRwb3MDMQRjb' +\
diff --git a/tests/unit/engines/test_yahoo_news.py b/tests/unit/engines/test_yahoo_news.py
index c3297dacf94a38ab5f4a149ec84e93ea82bf2cba..9cb7a6fc25d7d6b4158b169e0c8bebb7b4515b2f 100644
--- a/tests/unit/engines/test_yahoo_news.py
+++ b/tests/unit/engines/test_yahoo_news.py
@@ -3,10 +3,10 @@ from collections import defaultdict
 from datetime import datetime
 import mock
 from searx.engines import yahoo_news
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestYahooNewsEngine(SearxTestCase):
+class TestYahooNewsEngine(TestCase):
 
     def test_request(self):
         yahoo_news.supported_languages = ['en', 'fr']
diff --git a/tests/unit/engines/test_youtube_api.py b/tests/unit/engines/test_youtube_api.py
index 0d4d478c3bbb9d46e977c688ed1f48aaa5428440..789d8b1943391b0a7bf1a759087247d7e0076227 100644
--- a/tests/unit/engines/test_youtube_api.py
+++ b/tests/unit/engines/test_youtube_api.py
@@ -1,10 +1,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import youtube_api
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestYoutubeAPIEngine(SearxTestCase):
+class TestYoutubeAPIEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/engines/test_youtube_noapi.py b/tests/unit/engines/test_youtube_noapi.py
index 41dcbb7492b088c9715a77f357f51c8526b5e363..f102936ff0739074f96e1d87503c17975f7f1604 100644
--- a/tests/unit/engines/test_youtube_noapi.py
+++ b/tests/unit/engines/test_youtube_noapi.py
@@ -2,10 +2,10 @@
 from collections import defaultdict
 import mock
 from searx.engines import youtube_noapi
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestYoutubeNoAPIEngine(SearxTestCase):
+class TestYoutubeNoAPIEngine(TestCase):
 
     def test_request(self):
         query = 'test_query'
diff --git a/tests/unit/test_answerers.py b/tests/unit/test_answerers.py
index 73d8d26f2ff4f65e71b9fc6b939e57f26bc82009..756edc37d95f7c131a04ae00f03951de1a057f3d 100644
--- a/tests/unit/test_answerers.py
+++ b/tests/unit/test_answerers.py
@@ -3,10 +3,10 @@
 from mock import Mock
 
 from searx.answerers import answerers
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class AnswererTest(SearxTestCase):
+class AnswererTest(TestCase):
 
     def test_unicode_input(self):
         query = Mock()
diff --git a/tests/unit/test_plugins.py b/tests/unit/test_plugins.py
index 5b2ec48b47604801128b2579617e287a8ec509ba..729b8fc912408257f69ebfe110332f7e5a63c00f 100644
--- a/tests/unit/test_plugins.py
+++ b/tests/unit/test_plugins.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from searx import plugins
 from mock import Mock
 
@@ -9,7 +9,7 @@ def get_search_mock(query, **kwargs):
     return Mock(query=query, answers=set(), **kwargs)
 
 
-class PluginStoreTest(SearxTestCase):
+class PluginStoreTest(TestCase):
 
     def test_PluginStore_init(self):
         store = plugins.PluginStore()
@@ -36,7 +36,7 @@ class PluginStoreTest(SearxTestCase):
         self.assertTrue(testplugin.asdf.called)
 
 
-class SelfIPTest(SearxTestCase):
+class SelfIPTest(TestCase):
 
     def test_PluginStore_init(self):
         store = plugins.PluginStore()
diff --git a/tests/unit/test_preferences.py b/tests/unit/test_preferences.py
index 07ca61f099773a01261c9a2b29101abd4bfed8a0..6fcd0cee4e9731d4fdf3ed5414e2705cd4357594 100644
--- a/tests/unit/test_preferences.py
+++ b/tests/unit/test_preferences.py
@@ -1,6 +1,6 @@
 from searx.preferences import (EnumStringSetting, MapSetting, MissingArgumentException, SearchLanguageSetting,
                                MultipleChoiceSetting, PluginsSetting, ValidationException)
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
 class PluginStub(object):
@@ -10,7 +10,7 @@ class PluginStub(object):
         self.default_on = default_on
 
 
-class TestSettings(SearxTestCase):
+class TestSettings(TestCase):
     # map settings
 
     def test_map_setting_invalid_initialization(self):
diff --git a/tests/unit/test_query.py b/tests/unit/test_query.py
index 1006434cf5cfaf0558d0318df174f33642a319fd..7c575572615804bb5f961e2869079ec462b4c0fc 100644
--- a/tests/unit/test_query.py
+++ b/tests/unit/test_query.py
@@ -1,8 +1,8 @@
 from searx.query import RawTextQuery
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
-class TestQuery(SearxTestCase):
+class TestQuery(TestCase):
 
     def test_simple_query(self):
         query_text = 'the query'
diff --git a/tests/unit/test_results.py b/tests/unit/test_results.py
index 274b5b37af81a208bd39f769d4912b5913f18761..b659daafac213fe0f8075794c104263e93e2c18f 100644
--- a/tests/unit/test_results.py
+++ b/tests/unit/test_results.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 from searx.results import ResultContainer
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
 def fake_result(url='https://aa.bb/cc?dd=ee#ff',
@@ -17,7 +17,7 @@ def fake_result(url='https://aa.bb/cc?dd=ee#ff',
 
 
 #  TODO
-class ResultContainerTestCase(SearxTestCase):
+class ResultContainerTestCase(TestCase):
 
     def test_empty(self):
         c = ResultContainer()
diff --git a/tests/unit/test_search.py b/tests/unit/test_search.py
index af5fffd8b3a501a90842c8caa67d27a204c5fcd4..62c46f8ad8530ca24872911cc9dbd59eff3e4a55 100644
--- a/tests/unit/test_search.py
+++ b/tests/unit/test_search.py
@@ -1,10 +1,10 @@
 # -*- coding: utf-8 -*-
 
-from searx.testing import SearxTestCase
+from unittest import TestCase
 
 
 #  TODO
-class SearchTestCase(SearxTestCase):
+class SearchTestCase(TestCase):
 
     def test_(self):
         pass
diff --git a/tests/unit/test_utils.py b/tests/unit/test_utils.py
index 75a855c6b9a10b43bc3a6c1302dbb9b8e54843b6..211cd0bc298b3dde05fbf2f510b4ed9297c2066c 100644
--- a/tests/unit/test_utils.py
+++ b/tests/unit/test_utils.py
@@ -1,10 +1,10 @@
 # -*- coding: utf-8 -*-
 import mock
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from searx import utils
 
 
-class TestUtils(SearxTestCase):
+class TestUtils(TestCase):
 
     def test_gen_useragent(self):
         self.assertIsInstance(utils.gen_useragent(), str)
@@ -87,7 +87,7 @@ class TestUtils(SearxTestCase):
         self.assertEqual(utils.match_language('he-IL', ['iw-IL'], aliases), 'iw-IL')
 
 
-class TestHTMLTextExtractor(SearxTestCase):
+class TestHTMLTextExtractor(TestCase):
 
     def setUp(self):
         self.html_text_extractor = utils.HTMLTextExtractor()
@@ -110,7 +110,7 @@ class TestHTMLTextExtractor(SearxTestCase):
         self.assertIn(entity, self.html_text_extractor.result)
 
 
-class TestUnicodeWriter(SearxTestCase):
+class TestUnicodeWriter(TestCase):
 
     def setUp(self):
         self.unicode_writer = utils.UnicodeWriter(mock.MagicMock())
diff --git a/tests/unit/test_webapp.py b/tests/unit/test_webapp.py
index 165426e599d022c057b52be7cd2dc93988ac1b14..f8aa531fc918f6c2afcb979c5057b1dd9ecf847a 100644
--- a/tests/unit/test_webapp.py
+++ b/tests/unit/test_webapp.py
@@ -4,12 +4,12 @@ import json
 from mock import Mock, patch
 from mockredis import mock_strict_redis_client
 from searx import webapp
-from searx.testing import SearxTestCase
+from unittest import TestCase
 from searx.search import Search
 from searx.url_utils import ParseResult
 
 
-class ViewsTestCase(SearxTestCase):
+class ViewsTestCase(TestCase):
 
     def setUp(self):
         webapp.app.config['TESTING'] = True  # to get better error messages