test for incorrect path

tests/integration/callbacks/test_incorrect_path.py

@@ -0,0 +1,97 @@
+import os
+import json
+from multiprocessing import Value
+from dash import Dash, Input, Output, dcc, html, MATCH, ALL, State
+import dash.testing.wait as wait
+
+def test_cb004_incorrect_path(dash_duo):
+    """Modify the DOM tree by adding new components in the callbacks."""
+
+    # some components don't exist in the initial render
+    app = Dash(__name__, suppress_callback_exceptions=True)
+    app.layout = html.Div(
+        [
+            dcc.Input(id={'type':'input', 'index':0}, value="initial value", className="persisted-0")
+        ],
+        id="output"
+    )
+
+    call_count = Value("i", 0)
+
+    @app.callback(Output("output", "children"), [Input({"type":"input", "index": ALL}, "value")])
+    def pad_output(input):
+        import pdb
+        pdb.set_trace()
+        call_count.value += 1
+        return html.Div(
+            [
+                dcc.Input(id={'type':'input', 'index': call_count.value}, value="sub input initial value", className=f'persisted-{call_count.value}'),
+                html.Div(id="test", children=f'this is my output'),
+                html.Div(id=f"sub-output-{call_count.value}", children=f'{input[0]}'),
+            ]
+        )
+
+    # @app.callback(Output("sub-output-1", "children"), [Input("input", "value")])
+    # def update_input(value):
+    #     import pdb
+    #     pdb.set_trace()
+
+    dash_duo.start_server(app)
+
+    dash_duo.wait_for_text_to_equal("#sub-output-1", "initial value")
+
+    assert call_count.value == 1, "called once at initial stage"
+
+    paths = dash_duo.redux_state_paths
+    # assert paths["objs"] == {}
+    # assert paths["strs"] == {
+    #     "input": ["props", "children", 0],
+    #     "output": ["props", "children", 1],
+    #     "sub-input-1": [
+    #         "props",
+    #         "children",
+    #         1,
+    #         "props",
+    #         "children",
+    #         "props",
+    #         "children",
+    #         0,
+    #     ],
+    #     "sub-output-1": [
+    #         "props",
+    #         "children",
+    #         1,
+    #         "props",
+    #         "children",
+    #         "props",
+    #         "children",
+    #         1,
+    #     ],
+    # }, "the paths should include these new output IDs"
+
+    # editing the input should modify the sub output
+    import pdb
+    pdb.set_trace()
+    dash_duo.find_element('.persisted-1').send_keys("deadbeef")
+
+    import pdb
+    pdb.set_trace()
+    dash_duo.wait_for_text_to_equal("#sub-output-1", "sub input initial valuedeadbeef")
+
+    import pdb
+    pdb.set_trace()
+    dash_duo.find_element('.persisted-2').send_keys("deadbeef")
+
+    import pdb
+    pdb.set_trace()
+    dash_duo.wait_for_text_to_equal("#sub-output-2", "sub input initial valuedeadbeef")
+
+    import pdb
+    pdb.set_trace()
+    dash_duo.find_element('.persisted-3').send_keys("deadbeef")
+    dash_duo.wait_for_text_to_equal("#sub-output-3", "sub input initial valuedeadbeefdeadbeef")
+
+    import pdb
+    pdb.set_trace()
+    dash_duo.find_element('.persisted-4').send_keys("deadbeef")
+    dash_duo.wait_for_text_to_equal("#sub-output-4", "sub input initial valuedead")