Add add/select tests without row/col on figure not created with make_subplots

Author: jonmmease

Diff for: packages/python/plotly/plotly/tests/test_core/test_update_objects/test_update_annotations.py

@@ -71,6 +71,19 @@ def assert_update(
                 # Check object unchanged
                 self.assertEqual(obj, obj_orig)
 
+    def test_add_annotation_no_grid(self):
+        # Paper annotation
+        fig = go.Figure()
+        fig.add_annotation(text="A")
+        annot = fig.layout.annotations[-1]
+        self.assertEqual(annot.text, "A")
+        self.assertEqual(annot.xref, "paper")
+        self.assertEqual(annot.yref, "paper")
+
+        # Not valid to add annotation by row/col
+        with self.assertRaisesRegexp(Exception, "make_subplots"):
+            fig.add_annotation(text="B", row=1, col=1)
+
     def test_add_annotations(self):
         # Paper annotation
         self.fig.add_annotation(text="A")
@@ -111,6 +124,16 @@ def test_add_annotations(self):
         with self.assertRaisesRegexp(ValueError, "of type polar"):
             self.fig.add_annotation(text="D", row=2, col=2)
 
+    def test_select_annotations_no_grid(self):
+        (
+            self.fig.add_annotation(text="A1", arrowcolor="red")
+            .add_annotation(text="A2", arrowcolor="blue")
+            .add_annotation(text="A3", arrowcolor="blue")
+        )
+        self.assert_selected("annotations", [0, 1, 2])
+        self.assert_selected("annotations", [0], selector=dict(arrowcolor="red"))
+        self.assert_selected("annotations", [1, 2], selector=dict(arrowcolor="blue"))
+
     def test_select_annotations(self):
         (
             self.fig.add_annotation(text="A1", arrowcolor="red")