[gtk+/wip/css-icons] Add tests for rtl icons and lookup order

[Matthias Clasen <matthiasc src gnome org>]

commit e47322ee43304f5962db007277e8dea87716f5cd
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon May 12 20:29:39 2014 -0400

    Add tests for rtl icons and lookup order
    
    Add tests for GTK_ICON_LOOKUP_DIR_RTL/LTR and tests that
    verify the expected lookup order between -symbolic,
    -rtl/-ltr and generic fallback.

 gtk/gtkicontheme.c                    |    5 ++
 testsuite/gtk/icons/16x16/bar-baz.png |  Bin 0 -> 174 bytes
 testsuite/gtk/icons/16x16/bar-rtl.png |  Bin 0 -> 174 bytes
 testsuite/gtk/icons/16x16/foo.png     |  Bin 0 -> 174 bytes
 testsuite/gtk/icontheme.c             |  102 +++++++++++++++++++++++++++++++++
 5 files changed, 107 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkicontheme.c b/gtk/gtkicontheme.c
index 1ad6953..dd06274 100644
--- a/gtk/gtkicontheme.c
+++ b/gtk/gtkicontheme.c
@@ -1643,6 +1643,11 @@ real_choose_icon (GtkIconTheme       *icon_theme,
 
   use_builtin = flags & GTK_ICON_LOOKUP_USE_BUILTIN;
 
+  /* This is used in the icontheme unit test */
+  GTK_NOTE (ICONTHEME,
+            for (i = 0; icon_names[i]; i++)
+              g_print ("\tlookup name: %s\n", icon_names[i]));
+
   /* for symbolic icons, do a search in all registered themes first;
    * a theme that inherits them from a parent theme might provide
    * an alternative highcolor version, but still expect the symbolic icon
diff --git a/testsuite/gtk/icons/16x16/bar-baz.png b/testsuite/gtk/icons/16x16/bar-baz.png
new file mode 100644
index 0000000..91824f9
Binary files /dev/null and b/testsuite/gtk/icons/16x16/bar-baz.png differ
diff --git a/testsuite/gtk/icons/16x16/bar-rtl.png b/testsuite/gtk/icons/16x16/bar-rtl.png
new file mode 100644
index 0000000..91824f9
Binary files /dev/null and b/testsuite/gtk/icons/16x16/bar-rtl.png differ
diff --git a/testsuite/gtk/icons/16x16/foo.png b/testsuite/gtk/icons/16x16/foo.png
new file mode 100644
index 0000000..91824f9
Binary files /dev/null and b/testsuite/gtk/icons/16x16/foo.png differ
diff --git a/testsuite/gtk/icontheme.c b/testsuite/gtk/icontheme.c
index 1b1c039..20eef66 100644
--- a/testsuite/gtk/icontheme.c
+++ b/testsuite/gtk/icontheme.c
@@ -99,6 +99,106 @@ test_symbolic_fallback (void)
   assert_icon_lookup ("foo-bar-symbolic", 16, 
GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_FORCE_REGULAR, "/icons/16x16/foo.png");
 }
 
+static void
+test_rtl (void)
+{
+  assert_icon_lookup ("simple-foo", 16, 
GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_FORCE_SYMBOLIC|GTK_ICON_LOOKUP_DIR_RTL, 
"/icons/16x16/simple.png");
+  assert_icon_lookup ("bar-baz", 16, GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_DIR_RTL, 
"/icons/16x16/bar-baz.png");
+}
+
+static GList *lookups = NULL;
+
+static void
+print_func (const gchar *string)
+{
+  if (g_str_has_prefix (string, "\tlookup name: "))
+    {
+      gchar *s;
+      s = g_strchomp (g_strdup (string + strlen ("\tlookup name: ")));
+      lookups = g_list_append (lookups, s);
+    }
+}
+
+static void
+assert_lookup_order (const char         *icon_name,
+                     gint                size,
+                     GtkIconLookupFlags  flags,
+                     const char         *first,
+                     ...)
+{
+  guint debug_flags;
+  GPrintFunc old_print_func;
+  va_list args;
+  const gchar *s;
+  GtkIconInfo *info;
+  GList *l;
+
+  debug_flags = gtk_get_debug_flags ();
+  gtk_set_debug_flags (debug_flags | GTK_DEBUG_ICONTHEME);
+  old_print_func = g_set_print_handler (print_func);
+
+  g_assert (lookups == NULL);
+  
+  info = gtk_icon_theme_lookup_icon (get_test_icontheme (), icon_name, size, flags);
+  if (info)
+    g_object_unref (info);
+  
+  va_start (args, first);
+  s = first;
+  l = lookups;
+  while (s != NULL)
+    {
+      g_assert (l != NULL);
+      g_assert_cmpstr (s, ==, l->data);
+      s = va_arg (args, gchar*);
+      l = l->next;
+    }
+  g_assert (l == NULL);
+  va_end (args);
+
+  g_list_free_full (lookups, g_free);
+  lookups = NULL;
+
+  g_set_print_handler (old_print_func);
+  gtk_set_debug_flags (debug_flags);
+}
+
+static void
+test_lookup_order (void)
+{
+  assert_lookup_order ("foo-bar-baz", 16, GTK_ICON_LOOKUP_GENERIC_FALLBACK,
+                       "foo-bar-baz",
+                       "foo-bar",
+                       "foo",
+                       NULL);
+  assert_lookup_order ("bla-bla", 16, GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_FORCE_SYMBOLIC,
+                       "bla-bla-symbolic",
+                       "bla-symbolic",
+                       "bla-bla",
+                       "bla",
+                       NULL);
+  assert_lookup_order ("bar-baz", 16, 
GTK_ICON_LOOKUP_FORCE_SYMBOLIC|GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_DIR_RTL,
+                       "bar-baz-symbolic-rtl",
+                       "bar-baz-symbolic",
+                       "bar-symbolic-rtl",
+                       "bar-symbolic",
+                       "bar-baz-rtl",
+                       "bar-baz",
+                       "bar-rtl",
+                       "bar",
+                       NULL);
+  assert_lookup_order ("bar-baz", 16, 
GTK_ICON_LOOKUP_FORCE_SYMBOLIC|GTK_ICON_LOOKUP_GENERIC_FALLBACK|GTK_ICON_LOOKUP_DIR_LTR,
+                       "bar-baz-symbolic-ltr",
+                       "bar-baz-symbolic",
+                       "bar-symbolic-ltr",
+                       "bar-symbolic",
+                       "bar-baz-ltr",
+                       "bar-baz",
+                       "bar-ltr",
+                       "bar",
+                       NULL);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -108,6 +208,8 @@ main (int argc, char *argv[])
   g_test_add_func ("/icontheme/fallback", test_fallback);
   g_test_add_func ("/icontheme/symbolic", test_symbolic);
   g_test_add_func ("/icontheme/symbolic-fallback", test_symbolic_fallback);
+  g_test_add_func ("/icontheme/rtl", test_rtl);
+  g_test_add_func ("/icontheme/lookup-order", test_lookup_order);
 
   return g_test_run();
 }