Update documentation and code snippets

tests/unit_tests/test_app.py

@@ -221,6 +221,90 @@ def test_overlapping_aliases_raises_exception() -> None:
             pass
 
 
+def test_app_detects_trigger_collision_between_routers() -> None:
+    from argenta.router.exceptions import RepeatedTriggerNameException
+    
+    app = App()
+    router1 = Router()
+    router2 = Router()
+
+    @router1.command('hello')
+    def handler1(_res: Response) -> None:
+        pass
+
+    @router2.command('hello')
+    def handler2(_res: Response) -> None:
+        pass
+
+    app.include_router(router1)
+    app.include_router(router2)
+
+    with pytest.raises(RepeatedTriggerNameException):
+        app._pre_cycle_setup()
+
+
+def test_app_detects_alias_collision_between_routers() -> None:
+    app = App()
+    router1 = Router()
+    router2 = Router()
+
+    @router1.command(Command('hello', aliases={'hi'}))
+    def handler1(_res: Response) -> None:
+        pass
+
+    @router2.command(Command('world', aliases={'hi'}))
+    def handler2(_res: Response) -> None:
+        pass
+
+    app.include_router(router1)
+    app.include_router(router2)
+
+    with pytest.raises(RepeatedAliasNameException):
+        app._pre_cycle_setup()
+
+
+def test_app_detects_trigger_alias_collision_between_routers() -> None:
+    app = App()
+    router1 = Router()
+    router2 = Router()
+
+    @router1.command('hello')
+    def handler1(_res: Response) -> None:
+        pass
+
+    @router2.command(Command('world', aliases={'hello'}))
+    def handler2(_res: Response) -> None:
+        pass
+
+    app.include_router(router1)
+    app.include_router(router2)
+
+    with pytest.raises(RepeatedAliasNameException):
+        app._pre_cycle_setup()
+
+
+def test_app_detects_collision_case_insensitive() -> None:
+    from argenta.router.exceptions import RepeatedTriggerNameException
+    
+    app = App()
+    router1 = Router()
+    router2 = Router()
+
+    @router1.command('Hello')
+    def handler1(_res: Response) -> None:
+        pass
+
+    @router2.command('hELLo')
+    def handler2(_res: Response) -> None:
+        pass
+
+    app.include_router(router1)
+    app.include_router(router2)
+
+    with pytest.raises(RepeatedTriggerNameException):
+        app._pre_cycle_setup()
+
+
 # ============================================================================
 # Tests for startup messages
 # ============================================================================