Add tests for ConfirmDialog without callbacks.

test/test_integration.py

@@ -639,23 +639,24 @@ def update_text(n):
         output = self.wait_for_element_by_css_selector('#output')
         self.assertEqual(output.text, '2')
 
-    def _test_confirm(self, app, test_name):
+    def _test_confirm(self, app, test_name, add_callback=True):
         count = Value('i', 0)
 
-        @app.callback(Output('confirmed', 'children'),
-                      [Input('confirm', 'submit_n_clicks'),
-                       Input('confirm', 'cancel_n_clicks')],
-                      [State('confirm', 'submit_n_clicks_timestamp'),
-                       State('confirm', 'cancel_n_clicks_timestamp')])
-        def _on_confirmed(submit_n_clicks, cancel_n_clicks,
-                          submit_timestamp, cancel_timestamp):
-            if not submit_n_clicks and not cancel_n_clicks:
-                return ''
-            count.value = submit_n_clicks + cancel_n_clicks
-            if submit_timestamp > cancel_timestamp:
-                return 'confirmed'
-            else:
-                return 'canceled'
+        if add_callback:
+            @app.callback(Output('confirmed', 'children'),
+                          [Input('confirm', 'submit_n_clicks'),
+                           Input('confirm', 'cancel_n_clicks')],
+                          [State('confirm', 'submit_n_clicks_timestamp'),
+                           State('confirm', 'cancel_n_clicks_timestamp')])
+            def _on_confirmed(submit_n_clicks, cancel_n_clicks,
+                              submit_timestamp, cancel_timestamp):
+                if not submit_n_clicks and not cancel_n_clicks:
+                    return ''
+                count.value += 1
+                if submit_timestamp > cancel_timestamp:
+                    return 'confirmed'
+                else:
+                    return 'canceled'
 
         self.startServer(app)
         self.snapshot(test_name + ' -> initial')
@@ -664,17 +665,23 @@ def _on_confirmed(submit_n_clicks, cancel_n_clicks,
         button.click()
         time.sleep(1)
         self.driver.switch_to.alert.accept()
-        self.wait_for_text_to_equal('#confirmed', 'confirmed')
-        self.snapshot(test_name + ' -> confirmed')
+
+        if add_callback:
+            self.wait_for_text_to_equal('#confirmed', 'confirmed')
+            self.snapshot(test_name + ' -> confirmed')
 
         button.click()
         time.sleep(0.5)
         self.driver.switch_to.alert.dismiss()
         time.sleep(0.5)
-        self.wait_for_text_to_equal('#confirmed', 'canceled')
-        self.snapshot(test_name + ' -> canceled')
 
-        self.assertEqual(2, count.value, 'Expected 2 callback but got ' + str(count.value))
+        if add_callback:
+            self.wait_for_text_to_equal('#confirmed', 'canceled')
+            self.snapshot(test_name + ' -> canceled')
+
+        if add_callback:
+            self.assertEqual(2, count.value,
+                             'Expected 2 callback but got ' + str(count.value))
 
     def test_confirm(self):
         app = dash.Dash(__name__)
@@ -704,3 +711,42 @@ def test_confirm_dialog_provider(self):
         ])
 
         self._test_confirm(app, 'ConfirmDialogProvider')
+
+    def test_confirm_without_callback(self):
+        app = dash.Dash(__name__)
+        app.layout = html.Div([
+            dcc.ConfirmDialogProvider(
+                html.Button('click me', id='button'),
+                id='confirm', message='Please confirm.'),
+            html.Div(id='confirmed')
+        ])
+        self._test_confirm(app, 'ConfirmDialogProviderWithoutCallback',
+                           add_callback=False)
+
+    def test_confirm_as_children(self):
+        app = dash.Dash(__name__)
+
+        app.layout = html.Div([
+            html.Button(id='button', children='Send confirm'),
+            html.Div(id='confirm-container'),
+            dcc.Location(id='dummy-location')
+        ])
+
+        @app.callback(Output('confirm-container', 'children'),
+                      [Input('button', 'n_clicks')])
+        def on_click(n_clicks):
+            if n_clicks:
+                return dcc.ConfirmDialog(
+                    displayed=True,
+                    id='confirm',
+                    key='confirm-{}'.format(time.time()),
+                    message='Please confirm.')
+
+        self.startServer(app)
+
+        button = self.wait_for_element_by_css_selector('#button')
+
+        button.click()
+        time.sleep(2)
+
+        self.driver.switch_to.alert.accept()