[gtksourceview] test-region: add basic tests for the new functions

[Sébastien Wilmet <swilmet src gnome org>]

commit 5420085f06367ec7487cb18d2892e5b81a143d1d
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Thu Aug 11 12:48:15 2016 +0200

    test-region: add basic tests for the new functions

 testsuite/test-region.c |   45 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)
---
diff --git a/testsuite/test-region.c b/testsuite/test-region.c
index d0b6884..3b212ca 100644
--- a/testsuite/test-region.c
+++ b/testsuite/test-region.c
@@ -256,6 +256,50 @@ test_intersect_subregion (void)
        g_object_unref (region);
 }
 
+static void
+test_add_subtract_intersect_region (void)
+{
+       GtkTextBuffer *buffer;
+       GtkSourceRegion *main_region = NULL;
+       GtkSourceRegion *region_to_add = NULL;
+       GtkSourceRegion *region_to_subtract = NULL;
+       GtkSourceRegion *intersection = NULL;
+
+       buffer = gtk_text_buffer_new (NULL);
+       main_region = gtk_source_region_new (buffer);
+
+       gtk_text_buffer_set_text (buffer, "This is a test of GtkSourceRegion", -1);
+
+       g_assert (gtk_source_region_is_empty (main_region));
+
+       /* Basic tests */
+
+       region_to_add = gtk_source_region_new (buffer);
+       add_subregion (region_to_add, 0, 5);
+       add_subregion (region_to_add, 10, 15);
+       check_result (region_to_add, "0-5 10-15");
+       gtk_source_region_add_region (main_region, region_to_add);
+       check_result (main_region, "0-5 10-15");
+
+       region_to_subtract = gtk_source_region_new (buffer);
+       add_subregion (region_to_subtract, 2, 3);
+       add_subregion (region_to_subtract, 10, 15);
+       gtk_source_region_subtract_region (main_region, region_to_subtract);
+       check_result (main_region, "0-2 3-5");
+
+       add_subregion (main_region, 20, 25);
+       check_result (main_region, "0-2 3-5 20-25");
+       check_result (region_to_add, "0-5 10-15");
+       intersection = gtk_source_region_intersect_region (main_region, region_to_add);
+       check_result (intersection, "0-2 3-5");
+
+       g_object_unref (buffer);
+       g_clear_object (&main_region);
+       g_clear_object (&region_to_add);
+       g_clear_object (&region_to_subtract);
+       g_clear_object (&intersection);
+}
+
 int
 main (int argc, char **argv)
 {
@@ -264,6 +308,7 @@ main (int argc, char **argv)
        g_test_add_func ("/Region/weak-ref", test_weak_ref);
        g_test_add_func ("/Region/add-subtract-subregion", test_add_subtract_subregion);
        g_test_add_func ("/Region/intersect-subregion", test_intersect_subregion);
+       g_test_add_func ("/Region/add-subtract-intersect-region", test_add_subtract_intersect_region);
 
        return g_test_run();
 }