python 3.x - Django filter testing - 


class businesspartnerfilter(silbasefilter):     active = django_filters.booleanfilter(         name='date_deactivated', lookup_expr='isnull')     parent_name = django_filters.charfilter(name='parent__name')     unmapped = django_filters.booleanfilter(method='check_if_unmapped')

i have added field 'unmapped' above , created method filter below. can please me write tests filter. i'm stuck.

class meta(object):     model = models.businesspartner     fields = [         'name', 'bp_type', 'slade_code', 'parent', 'national_identifier',         'active', 'parent_name', 'unmapped'     ]      def check_if_unmapped(self, queryset, field, value):         if value:             exclude_bps = [record.id record in queryset if record.mapped == 0 , record.unmapped == 0]             return queryset.exclude(id__in=exclude_bps)         return queryset

you can either test filter method in isolation, or test evaluation of filterset.qs.

to test filter method, don't need initialized filterset. 

qs = businesspartner.objects.all() f = businesspartnerfilter() result = f.check_if_unmapped(qs, 'unmapped', true) # assert result

that said, it's not more difficult initialize filterset , check .qs.

qs = businesspartner.objects.all() f = businesspartnerfilter(data={'unmapped': 'true'}, queryset=qs) result = f.qs # assert result

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