[gtk/selection-filter-fixes: 2/2] testsuite: Add selection filter model tests

[Matthias Clasen <matthiasc src gnome org>]

commit a8d4f2b10fa38b8c4700ceb6dc93db7637c39ef2
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 3 09:54:32 2020 -0400

    testsuite: Add selection filter model tests
    
    Verify that the selection filter changes mirror
    the selection changes of the underlying model,
    as expected. These tests verify the fixes in
    the previous commit.

 testsuite/gtk/multiselection.c | 122 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 121 insertions(+), 1 deletion(-)
---
diff --git a/testsuite/gtk/multiselection.c b/testsuite/gtk/multiselection.c
index 6093c3dbf1..141093d0f6 100644
--- a/testsuite/gtk/multiselection.c
+++ b/testsuite/gtk/multiselection.c
@@ -263,6 +263,21 @@ new_model (GListStore *store)
   return result;
 }
 
+static GtkSelectionFilterModel *
+new_filter_model (GtkSelectionModel *model)
+{
+  GtkSelectionFilterModel *result;
+  GString *changes;
+
+  result = gtk_selection_filter_model_new (model);
+
+  changes = g_string_new ("");
+  g_object_set_qdata_full (G_OBJECT(result), changes_quark, changes, free_changes);
+  g_signal_connect (result, "items-changed", G_CALLBACK (items_changed), changes);
+
+  return result;
+}
+
 static void
 test_create (void)
 {
@@ -291,7 +306,8 @@ test_changes (void)
 {
   GtkSelectionModel *selection;
   GListStore *store;
-  
+  gboolean ret;
+
   store = new_store (1, 5, 1);
   selection = new_model (store);
   assert_model (selection, "1 2 3 4 5");
@@ -317,6 +333,17 @@ test_changes (void)
   assert_selection (selection, "");
   assert_selection_changes (selection, "");
 
+  ret = gtk_selection_model_select_range (selection, 1, 2, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "2 3");
+  assert_selection_changes (selection, "1:2");
+
+  insert (store, 2, 22);
+  assert_model (selection, "1 2 22 3 97");
+  assert_changes (selection, "+2");
+  assert_selection (selection, "2 3");
+  assert_selection_changes (selection, "");
+
   g_object_unref (store);
   g_object_unref (selection);
 }
@@ -480,6 +507,98 @@ test_set_selection (void)
   g_object_unref (selection);
 }
 
+static void
+test_selection_filter (void)
+{
+  GtkSelectionModel *selection;
+  GtkSelectionFilterModel *filter;
+  GListStore *store;
+  gboolean ret;
+
+  store = new_store (1, 5, 1);
+  selection = new_model (store);
+  assert_selection (selection, "");
+  assert_selection_changes (selection, "");
+
+  filter = new_filter_model (selection);
+  assert_model (filter, "");
+  assert_changes (filter, "");
+
+  ret = gtk_selection_model_select_item (selection, 3, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "4");
+  assert_selection_changes (selection, "3:1");
+  assert_model (filter, "4");
+  assert_changes (filter, "+0");
+
+  ret = gtk_selection_model_unselect_item (selection, 3);
+  g_assert_true (ret);
+  assert_selection (selection, "");
+  assert_selection_changes (selection, "3:1");
+  assert_model (filter, "");
+  assert_changes (filter, "-0");
+
+  ret = gtk_selection_model_select_item (selection, 1, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "2");
+  assert_selection_changes (selection, "1:1");
+  assert_model (filter, "2");
+  assert_changes (filter, "+0");
+
+  ret = gtk_selection_model_select_range (selection, 3, 2, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "2 4 5");
+  assert_selection_changes (selection, "3:2");
+  assert_model (filter, "2 4 5");
+  assert_changes (filter, "1+2");
+
+  ret = gtk_selection_model_unselect_range (selection, 3, 2);
+  g_assert_true (ret);
+  assert_selection (selection, "2");
+  assert_selection_changes (selection, "3:2");
+  assert_model (filter, "2");
+  assert_changes (filter, "1-2");
+
+  ret = gtk_selection_model_select_all (selection);
+  g_assert_true (ret);
+  assert_selection (selection, "1 2 3 4 5");
+  assert_selection_changes (selection, "0:5");
+  assert_model (filter, "1 2 3 4 5");
+  assert_changes (filter, "0-1+5");
+
+  ret = gtk_selection_model_unselect_all (selection);
+  g_assert_true (ret);
+  assert_selection (selection, "");
+  assert_selection_changes (selection, "0:5");
+  assert_model (filter, "");
+  assert_changes (filter, "0-5");
+
+  ret = gtk_selection_model_select_range (selection, 1, 3, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "2 3 4");
+  assert_selection_changes (selection, "1:3");
+  assert_model (filter, "2 3 4");
+  assert_changes (filter, "0+3");
+
+  insert (store, 2, 22);
+  assert_model (selection, "1 2 22 3 4 5");
+  assert_changes (selection, "+2");
+  assert_selection (selection, "2 3 4");
+  assert_selection_changes (selection, "");
+  assert_model (filter, "2 3 4");
+  assert_changes (filter, "");
+
+  g_list_store_remove (store, 2);
+  assert_model (selection, "1 2 3 4 5");
+  assert_changes (selection, "-2");
+  assert_selection (selection, "2 3 4");
+  assert_selection_changes (selection, "");
+  assert_model (filter, "2 3 4");
+  assert_changes (filter, "");
+
+  g_object_unref (store);
+  g_object_unref (selection);
+}
 int
 main (int argc, char *argv[])
 {
@@ -499,6 +618,7 @@ main (int argc, char *argv[])
   g_test_add_func ("/multiselection/select-range", test_select_range);
   g_test_add_func ("/multiselection/readd", test_readd);
   g_test_add_func ("/multiselection/set_selection", test_set_selection);
+  g_test_add_func ("/multiselection/selection-filter", test_selection_filter);
 
   return g_test_run ();
 }