Use pytest as our test runner for better parallelism

Also rewrote some asset tests to be in the pytest style. May do some more. Some warnings cleaned up in the process.

PyRIGS/urls.py

@@ -1,5 +1,5 @@
-from django.urls import path
-from django.conf.urls import include, url
+from django.urls import path, re_path
+from django.conf.urls import include
 from django.contrib import admin
 from django.contrib.staticfiles.urls import staticfiles_urlpatterns
 from django.contrib.auth.decorators import login_required
@@ -39,6 +39,6 @@ if settings.DEBUG:
 
     import debug_toolbar
     urlpatterns = [
-        url(r'^__debug__/', include(debug_toolbar.urls)),
+        re_path(r'^__debug__/', include(debug_toolbar.urls)),
         path('bootstrap/', TemplateView.as_view(template_name="bootstrap.html")),
     ] + urlpatterns

PyRIGS/views.py

@@ -23,6 +23,8 @@ from functools import reduce
 from django.views.decorators.cache import never_cache, cache_page
 from django.utils.decorators import method_decorator
 
+def is_ajax(request):
+    return request.headers.get('x-requested-with') == 'XMLHttpRequest'
 
 # Displays the current rig count along with a few other bits and pieces
 class Index(generic.TemplateView):
@@ -151,7 +153,7 @@ class SecureAPIRequest(generic.View):
 
 class ModalURLMixin:
     def get_close_url(self, update, detail):
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             url = reverse_lazy('closemodal')
             update_url = str(reverse_lazy(update, kwargs={'pk': self.object.pk}))
             messages.info(self.request, "modalobject=" + serializers.serialize("json", [self.object]))
@@ -170,7 +172,7 @@ class GenericListView(generic.ListView):
     def get_context_data(self, **kwargs):
         context = super(GenericListView, self).get_context_data(**kwargs)
         context['page_title'] = self.model.__name__ + "s"
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             context['override'] = "base_ajax.html"
         return context
 
@@ -202,7 +204,7 @@ class GenericDetailView(generic.DetailView):
     def get_context_data(self, **kwargs):
         context = super(GenericDetailView, self).get_context_data(**kwargs)
         context['page_title'] = "{} | {}".format(self.model.__name__, self.object.name)
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             context['override'] = "base_ajax.html"
         return context
 
@@ -213,7 +215,7 @@ class GenericUpdateView(generic.UpdateView):
     def get_context_data(self, **kwargs):
         context = super(GenericUpdateView, self).get_context_data(**kwargs)
         context['page_title'] = "Edit {}".format(self.model.__name__)
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             context['override'] = "base_ajax.html"
         return context
 
@@ -224,7 +226,7 @@ class GenericCreateView(generic.CreateView):
     def get_context_data(self, **kwargs):
         context = super(GenericCreateView, self).get_context_data(**kwargs)
         context['page_title'] = "Create {}".format(self.model.__name__)
-        if self.request.is_ajax():
+        if is_ajax(self.request):
             context['override'] = "base_ajax.html"
         return context