[gtk+/gtk-style-context] Add tests for matching

[Matthias Clasen <matthiasc src gnome org>]

commit aba04a81d3f0936e49f1f74b6faa42a4dc178aa9
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Nov 18 23:45:42 2010 -0500

    Add tests for matching
    
    These tests try to decipher how specificity works for selectors.

 gtk/tests/stylecontext.c |  204 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 203 insertions(+), 1 deletions(-)
---
diff --git a/gtk/tests/stylecontext.c b/gtk/tests/stylecontext.c
index 8a53821..54027e6 100644
--- a/gtk/tests/stylecontext.c
+++ b/gtk/tests/stylecontext.c
@@ -255,16 +255,218 @@ test_parse_declarations (void)
    }
 }
 
+static void
+test_path (void)
+{
+  GtkWidgetPath *path;
+  GtkWidgetPath *path2;
+  gint pos;
+  GtkRegionFlags flags;
+
+  path = gtk_widget_path_new ();
+  g_assert_cmpint (gtk_widget_path_length (path), ==, 0);
+
+  pos = gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
+  g_assert_cmpint (pos, ==, 0);
+  g_assert_cmpint (gtk_widget_path_length (path), ==, 1);
+  g_assert (gtk_widget_path_iter_get_widget_type (path, 0) == GTK_TYPE_WINDOW);
+  g_assert (gtk_widget_path_is_type (path, GTK_TYPE_WIDGET));
+  g_assert (gtk_widget_path_iter_get_name (path, 0) == NULL);
+
+  pos = gtk_widget_path_append_type (path, GTK_TYPE_WIDGET);
+  g_assert_cmpint (pos, ==, 1);
+  g_assert_cmpint (gtk_widget_path_length (path), ==, 2);
+  gtk_widget_path_iter_set_widget_type (path, pos, GTK_TYPE_BUTTON);
+  g_assert (gtk_widget_path_is_type (path, GTK_TYPE_BUTTON));
+  g_assert (gtk_widget_path_has_parent (path, GTK_TYPE_WIDGET));
+  g_assert (gtk_widget_path_has_parent (path, GTK_TYPE_WINDOW));
+  g_assert (!gtk_widget_path_has_parent (path, GTK_TYPE_DIALOG));
+  g_assert (gtk_widget_path_iter_get_name (path, 1) == NULL);
+
+  gtk_widget_path_iter_set_name (path, 1, "name");
+  g_assert (gtk_widget_path_iter_has_name (path, 1, "name"));
+
+  gtk_widget_path_iter_add_class (path, 1, "class1");
+  gtk_widget_path_iter_add_class (path, 1, "class2");
+  g_assert (gtk_widget_path_iter_has_class (path, 1, "class1"));
+  g_assert (gtk_widget_path_iter_has_class (path, 1, "class2"));
+  g_assert (!gtk_widget_path_iter_has_class (path, 1, "class3"));
+
+  path2 = gtk_widget_path_copy (path);
+  g_assert (gtk_widget_path_iter_has_class (path2, 1, "class1"));
+  g_assert (gtk_widget_path_iter_has_class (path2, 1, "class2"));
+  g_assert (!gtk_widget_path_iter_has_class (path2, 1, "class3"));
+  gtk_widget_path_free (path2);
+
+  gtk_widget_path_iter_remove_class (path, 1, "class2");
+  g_assert (gtk_widget_path_iter_has_class (path, 1, "class1"));
+  g_assert (!gtk_widget_path_iter_has_class (path, 1, "class2"));
+  gtk_widget_path_iter_clear_classes (path, 1);
+  g_assert (!gtk_widget_path_iter_has_class (path, 1, "class1"));
+
+  gtk_widget_path_iter_add_region (path, 1, "tab", 0);
+  gtk_widget_path_iter_add_region (path, 1, "title", GTK_REGION_EVEN | GTK_REGION_FIRST);
+
+  g_assert (gtk_widget_path_iter_has_region (path, 1, "tab", &flags) &&
+            flags == 0);
+  g_assert (gtk_widget_path_iter_has_region (path, 1, "title", &flags) &&
+            flags == (GTK_REGION_EVEN | GTK_REGION_FIRST));
+  g_assert (!gtk_widget_path_iter_has_region (path, 1, "extension", NULL));
+
+  path2 = gtk_widget_path_copy (path);
+  g_assert (gtk_widget_path_iter_has_region (path2, 1, "tab", &flags) &&
+            flags == 0);
+  g_assert (gtk_widget_path_iter_has_region (path2, 1, "title", &flags) &&
+            flags == (GTK_REGION_EVEN | GTK_REGION_FIRST));
+  g_assert (!gtk_widget_path_iter_has_region (path2, 1, "extension", NULL));
+  gtk_widget_path_free (path2);
+
+  gtk_widget_path_free (path);
+}
+
+static void
+test_match (void)
+{
+  GtkStyleContext *context;
+  GtkWidgetPath *path;
+  GtkCssProvider *provider;
+  GError *error;
+  const gchar *data;
+  GdkRGBA *color;
+  GdkRGBA expected;
+
+  error = NULL;
+  provider = gtk_css_provider_new ();
+
+  gdk_rgba_parse ("#fff", &expected);
+
+  context = gtk_style_context_new ();
+
+  path = gtk_widget_path_new ();
+  gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
+  gtk_widget_path_append_type (path, GTK_TYPE_BOX);
+  gtk_widget_path_append_type (path, GTK_TYPE_BUTTON);
+  gtk_widget_path_iter_set_name (path, 0, "mywindow");
+  gtk_widget_path_iter_add_class (path, 2, "button");
+  gtk_style_context_set_path (context, path);
+  gtk_widget_path_free (path);
+
+  gtk_style_context_add_provider (context,
+                                  GTK_STYLE_PROVIDER (provider),
+                                  GTK_STYLE_PROVIDER_PRIORITY_USER);
+
+  data = "* { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkButton { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkButton { color: #fff }\n"
+         "GtkWindow > GtkButton { color: #000 }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         ".button { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkButton { color: #000 }\n"
+         ".button { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkButton { color: #000 }\n"
+         "GtkWindow GtkButton { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         ".button { color: #000 }\n"
+         "GtkWindow .button { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "* .button { color: #000 }\n"
+         "#mywindow .button { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkWindow .button { color: #000 }\n"
+         "GtkWindow#mywindow .button { color: #fff }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  data = "* { color: #f00 }\n"
+         "GtkWindow .button { color: #fff }\n"
+         "GObject .button { color: #000 }";
+  gtk_css_provider_load_from_data (provider, data, -1, &error);
+  g_assert_no_error (error);
+  gtk_style_context_invalidate (context);
+  gtk_style_context_get (context, 0, "color", &color, NULL);
+  g_assert (gdk_rgba_equal (color, &expected));
+  gdk_rgba_free (color);
+
+  g_object_unref (provider);
+  g_object_unref (context);
+}
+
 int
 main (int argc, char *argv[])
 {
-  g_type_init ();
+  gtk_init (NULL, NULL);
   g_test_init (&argc, &argv, NULL);
 
   g_test_add_func ("/style/parse/empty", test_parse_empty);
   g_test_add_func ("/style/parse/at", test_parse_at);
   g_test_add_func ("/style/parse/selectors", test_parse_selectors);
   g_test_add_func ("/style/parse/declarations", test_parse_declarations);
+  g_test_add_func ("/style/path", test_path);
+  g_test_add_func ("/style/match", test_match);
 
   return g_test_run ();
 }