diff --git a/.flake8 b/.flake8
new file mode 100644
index 0000000..280c745
--- /dev/null
+++ b/.flake8
@@ -0,0 +1,9 @@
+[flake8]
+count = True
+max-line-length = 127
+max-complecity = 10
+exclude =
+    .git,
+    .tox,
+    .venv
+statistics = True
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 849a16b..f21adb1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,15 +1,16 @@
-name: Run linter
+name: Tests
 on: [push, pull_request]
 
 jobs:
-  test:
+  build:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        python-version:
-          - "3.8"
-
+        python-version: ['3.7', '3.8', 'pypy3']
+        django-version: ['2.2', '3.1', '3.2']
+        pytest-version: ['pytest']
+        pytest-django-version: ['pytest-django']
     steps:
     - uses: actions/checkout@v2
 
@@ -18,14 +19,26 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install flake8
+    - name: Install CI dependencies
+      run: pip install flake8 codecov ${{ matrix.pytest-version }} ${{ matrix.pytest-django-version }}
+
+    - name: Install Django ${{ matrix.django-version }}
+      run: pip install 'Django==${{ matrix.django-version }}'
 
+    - name: Install Request Cache
+      run: pip install .
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        flake8 . --select=E9,F63,F7,F82
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        flake8 . --exit-zero
+
+    - name: Run tests with coverage
+      run: |
+        # run tests with coverage
+        coverage run -m pytest tests
+        coverage xml
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v1
diff --git a/setup.cfg b/setup.cfg
index 11e9ec4..2df317e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1,9 @@
 [metadata]
-description-file = README.rst
\ No newline at end of file
+description-file = README.rst
+
+[tool:pytest]
+python_files = tests.py test_*.py *_tests.py
+DJANGO_SETTINGS_MODULE = testapp.settings
+
+[coverage:run]
+source = ./django_request_cache
diff --git a/tests/functional/test_sync.py b/tests/functional/test_sync.py
new file mode 100644
index 0000000..22b4794
--- /dev/null
+++ b/tests/functional/test_sync.py
@@ -0,0 +1,25 @@
+from unittest import mock
+
+from django.test import TestCase
+
+from django_request_cache import cache_for_request
+
+
+class RequestCacheMiddlewareTest(TestCase):
+
+    @mock.patch("testapp.views.sync.retrieve_time", spec_set=["__call__"])
+    def test_sync_one_request(self, mock_func):
+        cached_func = mock.MagicMock(spec_set=["__call__", "__name__"])
+        mock_func.side_effect = cache_for_request(cached_func)
+        self.client.get('/')
+        self.assertEqual(mock_func.call_count, 2)
+        self.assertEqual(cached_func.call_count, 1)
+
+    @mock.patch("testapp.views.sync.retrieve_time", spec_set=["__call__"])
+    def test_sync_two_requests(self, mock_func):
+        cached_func = mock.MagicMock(spec_set=["__call__", "__name__"])
+        mock_func.side_effect = cache_for_request(cached_func)
+        self.client.get('/')
+        self.client.get('/')
+        self.assertEqual(mock_func.call_count, 4)
+        self.assertEqual(cached_func.call_count, 2)
diff --git a/tests/manage.py b/tests/manage.py
new file mode 100755
index 0000000..6c75a82
--- /dev/null
+++ b/tests/manage.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python
+
+"""Django's command-line utility for administrative tasks."""
+import os
+import sys
+
+
+def main():
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testapp.settings')
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            'available on your PYTHONPATH environment variable? Did you '
+            'forget to activate a virtual environment?'
+        ) from exc
+    execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tests/testapp/__init__.py b/tests/testapp/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/testapp/settings.py b/tests/testapp/settings.py
new file mode 100644
index 0000000..0a7601c
--- /dev/null
+++ b/tests/testapp/settings.py
@@ -0,0 +1,35 @@
+import os
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+SECRET_KEY = 'secret'
+DEBUG = True
+ALLOWED_HOSTS = []
+
+INSTALLED_APPS = [
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.sessions',
+    'django.contrib.messages',
+    'django_request_cache',
+]
+
+MIDDLEWARE = [
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    'django_userforeignkey.middleware.UserForeignKeyMiddleware',
+    'django_request_cache.middleware.RequestCacheMiddleware',
+]
+
+ROOT_URLCONF = 'testapp.urls'
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': ':memory:',
+    }
+}
diff --git a/tests/testapp/urls.py b/tests/testapp/urls.py
new file mode 100644
index 0000000..ba88d50
--- /dev/null
+++ b/tests/testapp/urls.py
@@ -0,0 +1,7 @@
+from django.urls import path
+
+from testapp.views.sync import index_view
+
+urlpatterns = [
+    path('', index_view, name='index'),
+]
diff --git a/tests/testapp/utils.py b/tests/testapp/utils.py
new file mode 100644
index 0000000..5652686
--- /dev/null
+++ b/tests/testapp/utils.py
@@ -0,0 +1,8 @@
+from datetime import datetime
+
+from django_request_cache import cache_for_request
+
+
+@cache_for_request
+def retrieve_time():
+    return datetime.now()
diff --git a/tests/testapp/views/__init__.py b/tests/testapp/views/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/testapp/views/sync.py b/tests/testapp/views/sync.py
new file mode 100644
index 0000000..81532e1
--- /dev/null
+++ b/tests/testapp/views/sync.py
@@ -0,0 +1,8 @@
+from django.http import HttpResponse
+from testapp.utils import retrieve_time
+
+
+def index_view(request):
+    retrieve_time()
+    retrieve_time()
+    return HttpResponse()
diff --git a/tests/testapp/wsgi.py b/tests/testapp/wsgi.py
new file mode 100644
index 0000000..aa17590
--- /dev/null
+++ b/tests/testapp/wsgi.py
@@ -0,0 +1,7 @@
+import os
+
+from django.core.wsgi import get_wsgi_application
+
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'testapp.settings')
+
+application = get_wsgi_application()