Add custom assert for tests

vizro-core/tests/integration/test_navigation.py

@@ -2,7 +2,7 @@
 
 import vizro.models as vm
 
-from tests_utils import component_to_dict
+from asserts import assert_components_equal
 from vizro import Vizro
 from vizro.managers import model_manager
 
@@ -152,4 +152,4 @@ def label_cases(cases, label):
 def test_navigation_build(dashboard_result, dashboard_expected):
     result = dashboard_result.navigation.build()
     expected = dashboard_expected.navigation.build()
-    assert component_to_dict(result) == component_to_dict(expected)
+    assert_components_equal(result, expected)

vizro-core/tests/tests_utils/__init__.py

@@ -1,4 +0,0 @@
-# This is not actually required but helps PyCharm find the right function when using "Go to declaration".
-# The strange structure here is necessary so that tests_utils can be imported in an intuitive way without adding the
-# whole tests folder to the pythonpath. See https://stackoverflow.com/a/75635524.
-from asserts import assert_components_equal

vizro-core/tests/unit/vizro/models/_navigation/test_accordion.py

@@ -3,13 +3,13 @@
 import re
 
 import dash_bootstrap_components as dbc
-import plotly
 import pytest
 from dash import html
 from pydantic import ValidationError
 
 import vizro.models as vm
-from tests_utils import assert_components_equal
+from asserts import assert_components_equal
+
 from vizro._constants import ACCORDION_DEFAULT_TITLE