--- /dev/null
+#include <gtk/gtk.h>
+
+static gint value_changed_count;
+
+static void
+value_changed_cb (GtkSpinButton *spin)
+{
+ value_changed_count++;
+}
+
+static void
+test_value_changed (void)
+{
+ GtkWidget *spin;
+ GtkAdjustment *adj;
+
+ spin = gtk_spin_button_new_with_range (0.0, 10.0, 1.0);
+
+ g_signal_connect (spin, "value-changed", G_CALLBACK (value_changed_cb), NULL);
+
+ value_changed_count = 0;
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), 1.0);
+ g_assert_cmpint (value_changed_count, ==, 1);
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), 2.0);
+ g_assert_cmpint (value_changed_count, ==, 2);
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (spin), 2.0);
+ g_assert_cmpint (value_changed_count, ==, 2);
+
+ gtk_spin_button_spin (GTK_SPIN_BUTTON (spin), GTK_SPIN_STEP_FORWARD, 0.5);
+ g_assert_cmpint (value_changed_count, ==, 3);
+
+ gtk_spin_button_configure (GTK_SPIN_BUTTON (spin), NULL, 1.0, 0);
+ g_assert_cmpint (value_changed_count, ==, 4);
+
+ adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin));
+ gtk_adjustment_set_value (adj, 0.0);
+ g_assert_cmpint (value_changed_count, ==, 5);
+}
+
+static gint adjustment_changed_count;
+
+static void
+adjustment_changed_cb (GObject *object, GParamSpec *pspec)
+{
+ adjustment_changed_count++;
+}
+
+static void
+test_adjustment_changed (void)
+{
+ GtkWidget *spin;
+ GtkAdjustment *adj;
+
+ spin = gtk_spin_button_new_with_range (0.0, 10.0, 1.0);
+
+ g_signal_connect (spin, "notify::adjustment", G_CALLBACK (adjustment_changed_cb), NULL);
+
+ adjustment_changed_count = 0;
+ adj = gtk_adjustment_new (50.0, 0.0, 100.0, 1.0, 1.0, 0.0);
+ gtk_spin_button_configure (GTK_SPIN_BUTTON (spin), adj, 1.0, 0);
+ g_assert_cmpint (adjustment_changed_count, ==, 1);
+
+ adj = gtk_adjustment_new (51.0, 1.0, 101.0, 1.0, 1.0, 0.0);
+ gtk_spin_button_set_adjustment (GTK_SPIN_BUTTON (spin), adj);
+ g_assert_cmpint (adjustment_changed_count, ==, 2);
+
+ gtk_spin_button_set_range (GTK_SPIN_BUTTON (spin), 2.0, 102.0);
+ g_assert_cmpint (adjustment_changed_count, ==, 2);
+}
+
+static void
+test_adjustment_null (void)
+{
+ GtkWidget *spin;
+ GtkAdjustment *adj;
+
+ spin = gtk_spin_button_new_with_range (0.0, 10.0, 1.0);
+
+ adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin));
+ gtk_spin_button_configure (GTK_SPIN_BUTTON (spin), NULL, 1.0, 0);
+ g_assert (adj == gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin)));
+
+ gtk_spin_button_set_adjustment (GTK_SPIN_BUTTON (spin), NULL);
+ adj = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spin));
+ g_assert_cmpfloat (gtk_adjustment_get_lower (adj), ==, 0.0);
+ g_assert_cmpfloat (gtk_adjustment_get_value (adj), ==, 0.0);
+ g_assert_cmpfloat (gtk_adjustment_get_upper (adj), ==, 0.0);
+}
+
+int
+main (int argc, char *argv[])
+{
+ gtk_test_init (&argc, &argv);
+
+ g_test_add_func ("/spinbutton/value-changed", test_value_changed);
+ g_test_add_func ("/spinbutton/adjustment-changed", test_adjustment_changed);
+ g_test_add_func ("/spinbutton/adjustment-null", test_adjustment_null);
+
+ return g_test_run ();
+}