Move ViewInspector descriptor tests to own module.

tests/schemas/test_schemas.py

@@ -517,35 +517,8 @@ class Test4605Regression(TestCase):
         assert prefix == '/'
 
 
-class CustomViewInspector(AutoSchema):
-    """A dummy AutoSchema subclass"""
-    pass
-
-
 class TestAutoSchema(TestCase):
 
-    def test_apiview_schema_descriptor(self):
-        view = APIView()
-        assert hasattr(view, 'schema')
-        assert isinstance(view.schema, AutoSchema)
-
-    def test_set_custom_inspector_class_on_view(self):
-        class CustomView(APIView):
-            schema = CustomViewInspector()
-
-        view = CustomView()
-        assert isinstance(view.schema, CustomViewInspector)
-
-    def test_set_custom_inspector_class_via_settings(self):
-        with override_settings(REST_FRAMEWORK={'DEFAULT_SCHEMA_CLASS': 'tests.schemas.test_schemas.CustomViewInspector'}):
-            view = APIView()
-            assert isinstance(view.schema, CustomViewInspector)
-
-    def test_get_link_requires_instance(self):
-        descriptor = APIView.schema  # Accessed from class
-        with pytest.raises(AssertionError):
-            descriptor.get_link(None, None, None)  # ???: Do the dummy arguments require a tighter assert?
-
     @pytest.mark.skipif(not coreapi, reason='coreapi is not installed')
     def test_update_fields(self):
         """

tests/schemas/test_view_inspector_descriptor.py

@@ -0,0 +1,38 @@
+import pytest
+from django.test import TestCase, override_settings
+
+from rest_framework.schemas.inspectors import AutoSchema, ViewInspector
+from rest_framework.views import APIView
+
+
+class CustomViewInspector(ViewInspector):
+    """A dummy ViewInspector subclass"""
+    pass
+
+
+class TestViewInspector(TestCase):
+    """
+    Tests for the descriptor behaviour of ViewInspector
+    (and subclasses.)
+    """
+    def test_apiview_schema_descriptor(self):
+        view = APIView()
+        assert hasattr(view, 'schema')
+        assert isinstance(view.schema, AutoSchema)
+
+    def test_set_custom_inspector_class_on_view(self):
+        class CustomView(APIView):
+            schema = CustomViewInspector()
+
+        view = CustomView()
+        assert isinstance(view.schema, CustomViewInspector)
+
+    def test_set_custom_inspector_class_via_settings(self):
+        with override_settings(REST_FRAMEWORK={'DEFAULT_SCHEMA_CLASS': 'tests.schemas.test_view_inspector_descriptor.CustomViewInspector'}):
+            view = APIView()
+            assert isinstance(view.schema, CustomViewInspector)
+
+    def test_get_link_requires_instance(self):
+        descriptor = APIView.schema  # Accessed from class
+        with pytest.raises(AssertionError):
+            descriptor.get_link(None, None, None)