Implement UFCN custom_open_image behaviour in basic open_image function

Closes #65 (closed)

tests/test_element.py

@@ -275,3 +275,48 @@ def test_open_image_s3_retry_once(mocker):
 
     with pytest.raises(NotImplementedError):
         elt.open_image(use_full_image=True)
+
+
+def test_open_image_use_full_image_false(mocker):
+    open_mock = mocker.patch(
+        "arkindex_worker.models.open_image", return_value="an image!"
+    )
+    elt = Element(
+        {
+            "zone": {
+                "image": {"url": "http://something", "s3_url": "http://s3url"},
+                "url": "http://zoneurl/0,0,400,600/full/0/default.jpg",
+            }
+        }
+    )
+    assert elt.open_image(use_full_image=False) == "an image!"
+    assert open_mock.call_count == 1
+    assert open_mock.call_args == mocker.call(
+        "http://zoneurl/0,0,400,600/full/0/default.jpg"
+    )
+
+
+def test_open_image_resize_use_full_image_false(mocker):
+    open_mock = mocker.patch(
+        "arkindex_worker.models.open_image", return_value="an image!"
+    )
+    elt = Element(
+        {
+            "zone": {
+                "image": {
+                    "url": "http://something",
+                    "width": 400,
+                    "height": 600,
+                    "server": {"max_width": None, "max_height": None},
+                },
+                "polygon": [[0, 0], [400, 0], [400, 600], [0, 600], [0, 0]],
+                "url": "http://zoneurl/0,0,400,600/full/0/default.jpg",
+            }
+        }
+    )
+    # Resize = smaller
+    assert elt.open_image(max_size=200, use_full_image=False) == "an image!"
+    assert open_mock.call_count == 1
+    assert open_mock.call_args == mocker.call(
+        "http://zoneurl/0,0,400,600/133,200/0/default.jpg"
+    )