[gtk+/wip/baedert/progressbar: 5/14] testsuite: Add widget ordering test case

[Timm Bäder <baedert src gnome org>]

commit 98b3c56a757f2961786fc8fa88ad98decaba2dda
Author: Timm Bäder <mail baedert org>
Date:   Sun Apr 23 14:36:36 2017 +0200

    testsuite: Add widget ordering test case

 testsuite/gtk/Makefile.am   |    1 +
 testsuite/gtk/widgetorder.c |  529 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 530 insertions(+), 0 deletions(-)
---
diff --git a/testsuite/gtk/Makefile.am b/testsuite/gtk/Makefile.am
index aac128e..e388c77 100644
--- a/testsuite/gtk/Makefile.am
+++ b/testsuite/gtk/Makefile.am
@@ -77,6 +77,7 @@ TEST_PROGS +=                         \
        window                  \
        displayclose            \
        revealer-size \
+       widgetorder \
        $(NULL)
 
 if OS_UNIX
diff --git a/testsuite/gtk/widgetorder.c b/testsuite/gtk/widgetorder.c
new file mode 100644
index 0000000..36d0e42
--- /dev/null
+++ b/testsuite/gtk/widgetorder.c
@@ -0,0 +1,529 @@
+#include <gtk/gtk.h>
+
+static void
+simple (void)
+{
+  GtkWidget *box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  GtkWidget *l = gtk_label_new ("");
+
+  gtk_container_add (GTK_CONTAINER (box), l);
+
+  g_assert (gtk_widget_get_parent (l) == box);
+  g_assert (gtk_widget_get_prev_sibling (l) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l) == NULL);
+  g_assert (gtk_widget_get_first_child (l) == NULL);
+  g_assert (gtk_widget_get_last_child (l) == NULL);
+
+  g_assert (gtk_widget_get_first_child (box) == l);
+  g_assert (gtk_widget_get_last_child (box) == l);
+}
+
+static void
+two (void)
+{
+  GtkWidget *box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+
+  gtk_container_add (GTK_CONTAINER (box), l1);
+  gtk_container_add (GTK_CONTAINER (box), l2);
+
+  g_assert (gtk_widget_get_parent (l1) == box);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == box);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (box) == l1);
+  g_assert (gtk_widget_get_last_child (box) == l2);
+}
+
+static void
+prepend (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_insert_after (l2, p, NULL);
+
+  /* l2 should now be *before* l1 */
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == l2);
+  g_assert (gtk_widget_get_next_sibling (l1) == NULL);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l2) == l1);
+
+  g_assert (gtk_widget_get_first_child (p) == l2);
+  g_assert (gtk_widget_get_last_child (p) == l1);
+}
+
+static void
+append (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_insert_before (l2, p, NULL);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+static void
+insert_after (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_after (l2, p, l1);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+}
+
+static void
+insert_before (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_before (l2, p, l3);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+}
+
+static void
+insert_after_self (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l = gtk_label_new ("");
+
+  gtk_widget_insert_after (l, p, NULL);
+
+  g_assert (gtk_widget_get_parent (l) == p);
+  g_assert (gtk_widget_get_prev_sibling (l) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l) == NULL);
+  g_assert (gtk_widget_get_first_child (l) == NULL);
+  g_assert (gtk_widget_get_last_child (l) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l);
+  g_assert (gtk_widget_get_last_child (p) == l);
+
+  /* Insert l after l */
+  gtk_widget_insert_after (l, p, l);
+
+  g_assert (gtk_widget_get_parent (l) == p);
+  g_assert (gtk_widget_get_prev_sibling (l) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l) == NULL);
+  g_assert (gtk_widget_get_first_child (l) == NULL);
+  g_assert (gtk_widget_get_last_child (l) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l);
+  g_assert (gtk_widget_get_last_child (p) == l);
+}
+
+static void
+insert_before_self (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l = gtk_label_new ("");
+
+  gtk_widget_insert_before (l, p, NULL);
+
+  g_assert (gtk_widget_get_parent (l) == p);
+  g_assert (gtk_widget_get_prev_sibling (l) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l) == NULL);
+  g_assert (gtk_widget_get_first_child (l) == NULL);
+  g_assert (gtk_widget_get_last_child (l) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l);
+  g_assert (gtk_widget_get_last_child (p) == l);
+
+  /* Insert l before l */
+  gtk_widget_insert_before (l, p, l);
+
+  g_assert (gtk_widget_get_parent (l) == p);
+  g_assert (gtk_widget_get_prev_sibling (l) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l) == NULL);
+  g_assert (gtk_widget_get_first_child (l) == NULL);
+  g_assert (gtk_widget_get_last_child (l) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l);
+  g_assert (gtk_widget_get_last_child (p) == l);
+}
+
+static void
+reorder_after (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_before (l2, p, l3);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* The order is now l1, l2, l3. Now reorder l3 after l1 so
+   * the correct order is l1, l3, l2 */
+
+  gtk_widget_insert_after (l3, p, l1);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == l3);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+static void
+reorder_before (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_before (l2, p, l3);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* The order is now l1, l2, l3. Now reorder l3 before l2 so
+   * the correct order is l1, l3, l2 */
+
+  gtk_widget_insert_before (l3, p, l2);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == l3);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+static void
+reorder_start (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_before (l2, p, l3);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* The order is now l1, l2, l3. Now reorder l3 to the start so
+   * the correct order is l3, l1, l2 */
+
+  gtk_widget_insert_after (l3, p, NULL);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == l3);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l3) == l1);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l3);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+static void
+reorder_end (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+  GtkWidget *l3 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l3, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l3);
+
+  g_assert (gtk_widget_get_parent (l3) == p);
+  g_assert (gtk_widget_get_prev_sibling (l3) == l1);
+  g_assert (gtk_widget_get_next_sibling (l3) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* Now add l2 between l1 and l3 */
+  gtk_widget_insert_before (l2, p, l3);
+
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l3);
+
+  /* The order is now l1, l2, l3. Now reorder l1 to the end so
+   * the correct order is l2, l3, l1 */
+
+  gtk_widget_insert_before (l1, p, NULL);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == l3);
+  g_assert (gtk_widget_get_next_sibling (l1) == NULL);
+
+  g_assert (gtk_widget_get_prev_sibling (l3) == l2);
+  g_assert (gtk_widget_get_next_sibling (l3) == l1);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l2) == l3);
+
+  g_assert (gtk_widget_get_first_child (p) == l2);
+  g_assert (gtk_widget_get_last_child (p) == l1);
+}
+
+static void
+same_after (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l2, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+
+  /* l2 is already after l1, so this shouldn't change anything! */
+  gtk_widget_insert_after (l2, p, l1);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+static void
+same_before (void)
+{
+  GtkWidget *p = gtk_label_new ("");
+  GtkWidget *l1 = gtk_label_new ("");
+  GtkWidget *l2 = gtk_label_new ("");
+
+  gtk_widget_set_parent (l1, p);
+  gtk_widget_set_parent (l2, p);
+
+  g_assert (gtk_widget_get_parent (l1) == p);
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_parent (l2) == p);
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+
+  /* l1 is already before l2, so this shouldn't change anything! */
+  gtk_widget_insert_before (l1, p, l2);
+
+  g_assert (gtk_widget_get_prev_sibling (l2) == l1);
+  g_assert (gtk_widget_get_next_sibling (l2) == NULL);
+
+  g_assert (gtk_widget_get_prev_sibling (l1) == NULL);
+  g_assert (gtk_widget_get_next_sibling (l1) == l2);
+
+  g_assert (gtk_widget_get_first_child (p) == l1);
+  g_assert (gtk_widget_get_last_child (p) == l2);
+}
+
+int main (int argc, char **argv)
+{
+  gtk_init ();
+  g_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/widgetorder/simple", simple);
+  g_test_add_func ("/widgetorder/two", two);
+  g_test_add_func ("/widgetorder/prepend", prepend);
+  g_test_add_func ("/widgetorder/append", append);
+  g_test_add_func ("/widgetorder/insert-after", insert_after);
+  g_test_add_func ("/widgetorder/insert-before", insert_before);
+  g_test_add_func ("/widgetorder/insert-after-self", insert_after_self);
+  g_test_add_func ("/widgetorder/insert-before-self", insert_before_self);
+  g_test_add_func ("/widgetorder/reorder-after", reorder_after);
+  g_test_add_func ("/widgetorder/reorder-before", reorder_before);
+  g_test_add_func ("/widgetorder/reorder-start", reorder_start);
+  g_test_add_func ("/widgetorder/reorder-end", reorder_end);
+  g_test_add_func ("/widgetorder/same-after", same_after);
+  g_test_add_func ("/widgetorder/same-before", same_before);
+
+
+  return g_test_run ();
+}