exercise buggy tour path and assert rendered value in selenium test

Adds a first test case to gx_conditional_boolean that sets the inner
boolean_parameter explicitly, so TourGenerator enters the branch that
previously crashed on `", ".join([True])`. The selenium test walks the
popovers and asserts the inner step renders "Yes" — verifying both the
TypeError fix and the Yes/No rendering fix.

lib/galaxy_test/selenium/test_tool_describing_tours.py

@@ -64,12 +64,21 @@ class TestToolDescribingTours(SeleniumTestCase):
 
     @selenium_test
     def test_generate_tour_boolean_conditional(self):
-        """Regression test for https://github.com/galaxyproject/galaxy/issues/22460.
-
-        Generating a tour for a tool whose conditional has a boolean inner parameter
-        (explicitly set in the first test case) previously raised a TypeError.
-        """
         self.tool_open("gx_conditional_boolean")
         self.tool_form_generate_tour()
         popover_component = self.components.tour.popover._
         popover_component.wait_for_visible()
+
+        # Intro step: advance to the outer conditional step.
+        popover_component.next.wait_for_and_click()
+        self.sleep_for(self.wait_types.UX_RENDER)
+        # Advance to the inner boolean_parameter case step.
+        popover_component.next.wait_for_and_click()
+        self.sleep_for(self.wait_types.UX_RENDER)
+
+        # tests[0] specifies boolean_parameter="true" → tour should render "Yes".
+        text = popover_component.content.wait_for_visible().text
+        assert "Yes" in text, text
+
+        popover_component.end.wait_for_and_click()
+        popover_component.wait_for_absent_or_hidden()

test/functional/tools/parameters/gx_conditional_boolean.xml

@@ -16,6 +16,19 @@
         </conditional>
     </inputs>
     <tests>
+        <test>
+            <conditional name="conditional_parameter">
+                <param name="test_parameter" value="false" />
+                <param name="boolean_parameter" value="true" />
+            </conditional>
+            <expand macro="assert_output">
+                <has_line line="test: false" />
+            </expand>
+            <expand macro="assert_inputs_json">
+                <has_json_property_with_value property="test_parameter" value="false" />
+                <has_json_property_with_value property="boolean_parameter" value="true" />
+            </expand>
+        </test>
         <test>
             <expand macro="assert_output">
                 <has_line line="test: false" />