Use Stere.retry_time when searching element attributes, raise better …

…raise better error when it fails (#312)

stere/fields/field.py

@@ -1,5 +1,9 @@
 import typing
 
+import splinter
+
+from stere import Stere
+
 from .decorators import stere_performer
 from .element_builder import build_element
 from ..utils import _retry
@@ -63,7 +67,16 @@ def __getattr__(self, val):
                 raise AttributeError
 
             # Try getting the attribute from the found element.
-            return getattr(self.find(), val)
+            try:
+                elem = self.find(Stere.retry_time)
+            except splinter.exceptions.ElementDoesNotExist as e:
+                msg = (
+                    'Failed to get element attribute.'
+                    f'Could not find element with {self.strategy}: {self.locator}'  # NOQA E501
+                )
+                raise AttributeError(msg) from e
+
+            return getattr(elem, val)
 
     def __repr__(self):
         """Provide a string representation of this class."""

tests/splinter/test_field.py

@@ -112,6 +112,26 @@ def test_field_getattr_should_not_exist(test_page):
         assert test_page.button.foobar()
 
 
+def test_field_getattr_find_fails(test_page):
+    """
+    When I try to access an attribute that does not exist from a Field
+    And the element is not found
+    Then an error is raised
+    And the correct error message is displayed
+    """
+    test_page.navigate()
+
+    with pytest.raises(AttributeError) as e:
+        test_page.missing_button.does_not_exist
+
+    msg = (
+        'Failed to get element attribute.'
+        'Could not find element with data-test-id: not_on_the_page'
+    )
+
+    assert msg == str(e.value)
+
+
 def test_non_unique_field_find(test_page):
     """
     When I try to use find() on a Field that is found multiple times