lib: add empty property to TurnOrder

1 files changed, 82 insertions, 0 deletions

diff --git a/lib/tests/turns-turn-order.cpp b/lib/tests/turns-turn-order.cpp
index 2e11b52..0c1afcc 100644
--- a/lib/tests/turns-turn-order.cpp
+++ b/lib/tests/turns-turn-order.cpp
@@ -24,6 +24,13 @@ namespace
   {
     list_model_notification = std::tuple{position, removed, added};
   }
+
+  auto empty_notification = std::optional<bool>{};
+
+  auto on_empty_notification(TurnsTurnOrder const * instance, GParamSpec *, void *) -> void
+  {
+    empty_notification = turns_turn_order_get_empty(instance);
+  }
 }  // namespace
 
 SCENARIO("Creating a turn order", "[lib][object][lifetime]")
@@ -62,6 +69,16 @@ SCENARIO("Creating a turn order", "[lib][object][lifetime]")
       REQUIRE(g_list_model_get_item(G_LIST_MODEL(instance), 0) == nullptr);
       REQUIRE(g_list_model_get_object(G_LIST_MODEL(instance), 0) == nullptr);
     }
+
+    THEN("it's empty")
+    {
+      REQUIRE(turns_turn_order_get_empty(instance));
+
+      auto property_value = decltype(turns_turn_order_get_empty(instance)){};
+      g_object_get(instance, "empty", &property_value, nullptr);
+
+      REQUIRE(property_value);
+    }
   }
 }
 
@@ -73,10 +90,12 @@ SCENARIO("Modifying a turn order", "[lib][object][data]")
     CHECK(turns_turn_order_get_participant_count(instance) == 0);
 
     g_signal_connect(instance, "items-changed", reinterpret_cast<GCallback>(on_list_model_notification), nullptr);
+    g_signal_connect(instance, "notify::empty", reinterpret_cast<GCallback>(on_empty_notification), nullptr);
 
     WHEN("a participant is added")
     {
       g_autoptr(TurnsParticipant) participant = turns_participant_new_with("Test Participant", 10.0f, TURNS_PARTICIPANT_DISPOSITION_FRIENDLY);
+      empty_notification.reset();
       turns_turn_order_add(instance, participant);
 
       THEN("its participant count is 1")
@@ -103,9 +122,25 @@ SCENARIO("Modifying a turn order", "[lib][object][data]")
         REQUIRE(TURNS_PARTICIPANT(object) == participant);
       }
 
+      THEN("it's not empty")
+      {
+        REQUIRE_FALSE(turns_turn_order_get_empty(instance));
+
+        auto property_value = decltype(turns_turn_order_get_empty(instance)){};
+        g_object_get(instance, "empty", &property_value, nullptr);
+
+        REQUIRE_FALSE(property_value);
+      }
+
+      THEN("the empty property is notified")
+      {
+        REQUIRE(empty_notification.has_value());
+      }
+
       AND_WHEN("calling clear")
       {
         list_model_notification.reset();
+        empty_notification.reset();
         turns_turn_order_clear(instance);
 
         THEN("its participant count is 0")
@@ -142,11 +177,27 @@ SCENARIO("Modifying a turn order", "[lib][object][data]")
           REQUIRE(removed == 1);
           REQUIRE(added == 0);
         }
+
+        THEN("it's empty")
+        {
+          REQUIRE(turns_turn_order_get_empty(instance));
+
+          auto property_value = decltype(turns_turn_order_get_empty(instance)){};
+          g_object_get(instance, "empty", &property_value, nullptr);
+
+          REQUIRE(property_value);
+        }
+
+        THEN("the empty property is notified")
+        {
+          REQUIRE(empty_notification.has_value());
+        }
       }
 
       AND_WHEN("removing the first element")
       {
         list_model_notification.reset();
+        empty_notification.reset();
         turns_turn_order_remove_at(instance, 0);
 
         THEN("its participant count is 0")
@@ -168,9 +219,25 @@ SCENARIO("Modifying a turn order", "[lib][object][data]")
           REQUIRE(added == 0);
         }
 
+        THEN("it's empty")
+        {
+          REQUIRE(turns_turn_order_get_empty(instance));
+
+          auto property_value = decltype(turns_turn_order_get_empty(instance)){};
+          g_object_get(instance, "empty", &property_value, nullptr);
+
+          REQUIRE(property_value);
+        }
+
+        THEN("the empty property is notified")
+        {
+          REQUIRE(empty_notification.has_value());
+        }
+
         AND_WHEN("removing the first element again")
         {
           list_model_notification.reset();
+          empty_notification.reset();
           turns_turn_order_remove_at(instance, 0);
 
           THEN("its participant count is 0")
@@ -182,6 +249,21 @@ SCENARIO("Modifying a turn order", "[lib][object][data]")
           {
             REQUIRE(!list_model_notification.has_value());
           }
+
+          THEN("it's empty")
+          {
+            REQUIRE(turns_turn_order_get_empty(instance));
+
+            auto property_value = decltype(turns_turn_order_get_empty(instance)){};
+            g_object_get(instance, "empty", &property_value, nullptr);
+
+            REQUIRE(property_value);
+          }
+
+          THEN("the empty property is not notified")
+          {
+            REQUIRE_FALSE(empty_notification.has_value());
+          }
         }
       }
     }