Public release

tests/admin/test_ChangelistInlineAdminMixin.py

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+# -*- coding: utf-8 -*-
+from unittest import mock
+
+from django.contrib import admin
+from django.http import HttpRequest
+from django.test import TestCase
+
+from django_changelist_inline import (
+    ChangelistInline,
+    ChangelistInlineAdminMixin,
+    ChangelistInlineModelAdmin,
+)
+from testing.factories import ThingFactory, UserFactory
+from testing.models import RelatedThing, Thing
+
+
+class RelatedThingChangelistInline(ChangelistInline):
+    model = RelatedThing
+
+    class ChangelistModelAdmin(ChangelistInlineModelAdmin):
+        pass
+
+
+class ThingAdmin(ChangelistInlineAdminMixin, admin.ModelAdmin):
+    inlines = [RelatedThingChangelistInline]
+
+
+class ChangelistInlineAdminMixinTestCase(TestCase):
+    def setUp(self):
+        self.fake_user = UserFactory()
+
+        self.fake_request = mock.Mock(spec=HttpRequest)
+        self.fake_request.user = self.fake_user
+
+        self.thing = ThingFactory()
+
+    def test_get_inline_instances_no_obj(self):
+        # Given
+        thing_admin = ThingAdmin(Thing, admin.site)
+
+        with mock.patch.object(self.fake_user, 'has_perm') as mock_has_perm:
+            with mock.patch.object(RelatedThingChangelistInline, 'bind') as mock_bind:
+                mock_has_perm.return_value = True
+
+                # When
+                result = thing_admin.get_inline_instances(
+                    self.fake_request, obj=None,
+                )
+
+                # Then
+                self.assertEqual(len(result), 0)
+                self.assertFalse(mock_bind.called)
+
+    def test_get_inline_instances(self):
+        # Given
+        thing_admin = ThingAdmin(Thing, admin.site)
+
+        with mock.patch.object(self.fake_user, 'has_perm') as mock_has_perm:
+            with mock.patch.object(RelatedThingChangelistInline, 'bind') as mock_bind:
+                mock_has_perm.return_value = True
+
+                # When
+                result = thing_admin.get_inline_instances(
+                    self.fake_request, obj=self.thing,
+                )
+
+                # Then
+                self.assertEqual(len(result), 1)
+                self.assertIsInstance(result[0], RelatedThingChangelistInline)
+
+                mock_bind.assert_called_with(self.fake_request, self.thing)