diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..a9d584a
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,47 @@
+import pytest
+from httmock import urlmatch, HTTMock, response, remember_called
+
+import django_webtest
+
+from django.core.files import File
+from django.core.cache import cache
+from django.utils import six
+from io import BytesIO
+
+from utils import make_resource
+
+if six.PY2:
+    collect_ignore = ['wcs/']
+
+
+@pytest.fixture(autouse=True)
+def media(settings, tmpdir):
+    settings.MEDIA_ROOT = str(tmpdir.mkdir('media'))
+
+
+@pytest.fixture
+def app(request):
+    wtm = django_webtest.WebTestMixin()
+    wtm._patch_settings()
+    request.addfinalizer(wtm._unpatch_settings)
+    cache.clear()
+    return django_webtest.DjangoTestApp()
+
+
+@pytest.fixture
+def endpoint_dummy_cache(monkeypatch):
+    from django.core.cache import caches
+    import passerelle.views
+    monkeypatch.setattr(
+        passerelle.views, 'cache', caches['dummy'])
+
+
+@urlmatch()
+def internal_server_error(url, request):
+    return response(500, 'Internal server error')
+
+
+@pytest.fixture
+def mock_500():
+    with HTTMock(internal_server_error):
+        yield None
diff --git a/tests/test_base.py b/tests/test_base.py
deleted file mode 100644
index 43a04cf..0000000
--- a/tests/test_base.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# -*- coding: utf-8 -*-
-import pytest
-
-from django.core.cache import cache
-import django_webtest
-
-
-@pytest.fixture
-def app(request):
-    wtm = django_webtest.WebTestMixin()
-    wtm._patch_settings()
-    cache.clear()
-    yield django_webtest.DjangoTestApp()
-    wtm._unpatch_settings()
-
-
-def test_dummny(app):
-    assert True
diff --git a/tests/test_maarch.py b/tests/test_maarch.py
new file mode 100644
index 0000000..f6784ca
--- /dev/null
+++ b/tests/test_maarch.py
@@ -0,0 +1,8 @@
+import utils
+
+from passerelle_minint.minint_maarch.models import MinIntMaarch
+
+
+def test_creation(app, db):
+    resource = utils.make_resource(MinIntMaarch, wsdl_url='https://example.com/',
+                                   slug='slug', verify_cert=True)
diff --git a/tests/test_seisin.py b/tests/test_seisin.py
new file mode 100644
index 0000000..fadcb9c
--- /dev/null
+++ b/tests/test_seisin.py
@@ -0,0 +1,8 @@
+import utils
+
+from passerelle_minint.minint_seisin.models import SeisinManagement
+
+
+def test_creation(app, db):
+    resource = utils.make_resource(SeisinManagement, wsdl_url='https://example.com/',
+                                   slug='slug', verify_cert=True)
diff --git a/tests/utils.py b/tests/utils.py
new file mode 100644
index 0000000..62fc82b
--- /dev/null
+++ b/tests/utils.py
@@ -0,0 +1,65 @@
+import json
+
+import mock
+import httmock
+
+from django.contrib.contenttypes.models import ContentType
+from django.core.urlresolvers import reverse
+from django.utils.six.moves.urllib import parse as urlparse
+
+from passerelle.base.models import ApiUser, AccessRight
+from passerelle.compat import json_loads
+
+
+def generic_endpoint_url(connector, endpoint, slug='test'):
+    return reverse('generic-endpoint', kwargs={
+        'connector': connector, 'slug': slug, 'endpoint': endpoint})
+
+
+def setup_access_rights(obj):
+    api = ApiUser.objects.create(username='all',
+                                 keytype='', key='')
+    obj_type = ContentType.objects.get_for_model(obj)
+    AccessRight.objects.create(codename='can_access', apiuser=api,
+                               resource_type=obj_type, resource_pk=obj.pk)
+    return obj
+
+
+class FakedResponse(mock.Mock):
+    headers = {}
+
+    def json(self):
+        return json_loads(self.content)
+
+
+def mock_url(url=None, response='', status_code=200, headers=None):
+    urlmatch_kwargs = {}
+    if url:
+        parsed = urlparse.urlparse(url)
+        if parsed.netloc:
+            urlmatch_kwargs['netloc'] = parsed.netloc
+        if parsed.path:
+            urlmatch_kwargs['path'] = parsed.path
+
+    if not isinstance(response, str):
+        response = json.dumps(response)
+
+    @httmock.urlmatch(**urlmatch_kwargs)
+    def mocked(url, request):
+        return httmock.response(status_code, response, headers, request=request)
+    return httmock.HTTMock(mocked)
+
+
+def make_resource(model_class, **kwargs):
+    resource = model_class.objects.create(**kwargs)
+    setup_access_rights(resource)
+    return resource
+
+
+def endpoint_get(expected_url, app, resource, endpoint, **kwargs):
+    url = generic_endpoint_url(
+        connector=resource.__class__.get_connector_slug(),
+        endpoint=endpoint,
+        slug=resource.slug)
+    assert url == expected_url, 'endpoint URL has changed'
+    return app.get(url, **kwargs)
diff --git a/tox.ini b/tox.ini
index b2b8ebc..28312a4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,6 +15,8 @@ deps =
   psycopg2-binary
   pytest
   pytest-django
+  mock
+  httmock
   xmlschema<1.1
   py2: setuptools<45.0.0
 commands =