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

[Matthias Clasen <matthiasc src gnome org>]

commit b2803ffd09f804f591ea683c5685e334d26cc369
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 | 136 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 135 insertions(+), 1 deletion(-)
---
diff --git a/testsuite/gtk/multiselection.c b/testsuite/gtk/multiselection.c
index 6093c3dbf1..1fd32bce71 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 +507,112 @@ 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_item (selection, 0, FALSE);
+  g_assert_true (ret);
+  assert_selection (selection, "1 2");
+  assert_selection_changes (selection, "0:1");
+  assert_model (filter, "1 2");
+  assert_changes (filter, "+0");
+
+  ret = gtk_selection_model_unselect_item (selection, 0);
+  g_assert_true (ret);
+  assert_selection (selection, "2");
+  assert_selection_changes (selection, "0:1");
+  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 +632,7 @@ 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 ();
 }