[client] Add support for state manager on iOS (#2996)

client/internal/routeselector/routeselector_test.go

@@ -273,3 +273,88 @@ func TestRouteSelector_FilterSelected(t *testing.T) {
 		"route2|192.168.0.0/16": {},
 	}, filtered)
 }
+
+func TestRouteSelector_NewRoutesBehavior(t *testing.T) {
+	initialRoutes := []route.NetID{"route1", "route2", "route3"}
+	newRoutes := []route.NetID{"route1", "route2", "route3", "route4", "route5"}
+
+	tests := []struct {
+		name            string
+		initialState    func(rs *routeselector.RouteSelector) error // Setup initial state
+		wantNewSelected []route.NetID                               // Expected selected routes after new routes appear
+	}{
+		{
+			name: "New routes with initial selectAll state",
+			initialState: func(rs *routeselector.RouteSelector) error {
+				rs.SelectAllRoutes()
+				return nil
+			},
+			// When selectAll is true, all routes including new ones should be selected
+			wantNewSelected: []route.NetID{"route1", "route2", "route3", "route4", "route5"},
+		},
+		{
+			name: "New routes after specific selection",
+			initialState: func(rs *routeselector.RouteSelector) error {
+				return rs.SelectRoutes([]route.NetID{"route1", "route2"}, false, initialRoutes)
+			},
+			// When specific routes were selected, new routes should remain unselected
+			wantNewSelected: []route.NetID{"route1", "route2"},
+		},
+		{
+			name: "New routes after deselect all",
+			initialState: func(rs *routeselector.RouteSelector) error {
+				rs.DeselectAllRoutes()
+				return nil
+			},
+			// After deselect all, new routes should remain unselected
+			wantNewSelected: []route.NetID{},
+		},
+		{
+			name: "New routes after deselecting specific routes",
+			initialState: func(rs *routeselector.RouteSelector) error {
+				rs.SelectAllRoutes()
+				return rs.DeselectRoutes([]route.NetID{"route1"}, initialRoutes)
+			},
+			// After deselecting specific routes, new routes should remain unselected
+			wantNewSelected: []route.NetID{"route2", "route3"},
+		},
+		{
+			name: "New routes after selecting with append",
+			initialState: func(rs *routeselector.RouteSelector) error {
+				return rs.SelectRoutes([]route.NetID{"route1"}, true, initialRoutes)
+			},
+			// When routes were appended, new routes should remain unselected
+			wantNewSelected: []route.NetID{"route1"},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			rs := routeselector.NewRouteSelector()
+
+			// Setup initial state
+			err := tt.initialState(rs)
+			require.NoError(t, err)
+
+			// Verify selection state with new routes
+			for _, id := range newRoutes {
+				assert.Equal(t, rs.IsSelected(id), slices.Contains(tt.wantNewSelected, id),
+					"Route %s selection state incorrect", id)
+			}
+
+			// Additional verification using FilterSelected
+			routes := route.HAMap{
+				"route1|10.0.0.0/8":     {},
+				"route2|192.168.0.0/16": {},
+				"route3|172.16.0.0/12":  {},
+				"route4|10.10.0.0/16":   {},
+				"route5|192.168.1.0/24": {},
+			}
+
+			filtered := rs.FilterSelected(routes)
+			expectedLen := len(tt.wantNewSelected)
+			assert.Equal(t, expectedLen, len(filtered),
+				"FilterSelected returned wrong number of routes, got %d want %d", len(filtered), expectedLen)
+		})
+	}
+}