[gtk/matthiasc/for-master] testsuite: Improve coverage for GtkStringList

[Matthias Clasen <matthiasc src gnome org>]

commit 1c4c5e3b80178007dae260359ffb8ef1ea035b98
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 30 23:33:15 2020 -0400

    testsuite: Improve coverage for GtkStringList

 testsuite/gtk/stringlist.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
---
diff --git a/testsuite/gtk/stringlist.c b/testsuite/gtk/stringlist.c
index 12169be13e..63a1f6def4 100644
--- a/testsuite/gtk/stringlist.c
+++ b/testsuite/gtk/stringlist.c
@@ -109,6 +109,16 @@ new_model (const char **strings)
   return result;
 }
 
+static void
+test_string_object (void)
+{
+  GtkStringObject *so;
+
+  so = gtk_string_object_new ("Hello");
+  g_assert_cmpstr (gtk_string_object_get_string (so), ==, "Hello");
+  g_object_unref (so);
+}
+
 static void
 test_create_empty (void)
 {
@@ -116,6 +126,8 @@ test_create_empty (void)
 
   list = new_model ((const char *[]){ NULL });
 
+  g_assert_true (g_type_is_a (g_list_model_get_item_type (G_LIST_MODEL (list)), G_TYPE_OBJECT));
+
   assert_model (list, "");
   assert_changes (list, "");
 
@@ -237,6 +249,7 @@ main (int argc, char *argv[])
 
   changes_quark = g_quark_from_static_string ("What did I see? Can I believe what I saw?");
 
+  g_test_add_func ("/stringobject/basic", test_string_object);
   g_test_add_func ("/stringlist/create/empty", test_create_empty);
   g_test_add_func ("/stringlist/create/strv", test_create_strv);
   g_test_add_func ("/stringlist/create/builder", test_create_builder);