wip: navigation components

tests/ui/navigation/test_navhost.py

@@ -0,0 +1,31 @@
+from ui.navigation.navhost import NavHost
+from ui.navigation.navitem import NavItem
+
+
+class TestNavHost:
+    def test_auto_append_parent(self):
+        navHost = NavHost()
+
+        navHost.registerNavItem(NavItem(id="aaa.bbb.ccc.ddd"))
+
+        navItems = navHost.navItems
+
+        assert NavItem(id="aaa.bbb.ccc.ddd") in navItems
+        assert NavItem(id="aaa.bbb.ccc") in navItems
+        assert NavItem(id="aaa.bbb") in navItems
+        assert NavItem(id="aaa") in navItems
+
+    def test_auto_select_child(self):
+        navHost = NavHost()
+
+        navHost.registerNavItem(NavItem(id="aaa"))
+        navHost.registerNavItem(NavItem(id="bbb"))
+
+        assert navHost.currentNavItem.id == "aaa"
+
+        navHost.registerNavItem(NavItem(id="aaa.bbb"))
+        navHost.registerNavItem(NavItem(id="aaa.ccc"))
+
+        navHost.navigate("aaa")
+
+        assert navHost.currentNavItem.id == "aaa.bbb"