Add a test framework for CSS styles
authorMatthias Clasen <mclasen@redhat.com>
Tue, 29 Dec 2015 12:44:53 +0000 (07:44 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Sun, 3 Jan 2016 14:19:31 +0000 (09:19 -0500)
This uses the same function for dumping CSS nodes and styles
as the CSS node test. It can be used to test aspects of inheritance
and matching, as well as initial values.

No actual tests yet.

configure.ac
testsuite/css/Makefile.am
testsuite/css/style/Makefile.am [new file with mode: 0644]
testsuite/css/style/test-css-style.c [new file with mode: 0644]
testsuite/css/style/test-css-style.test.in [new file with mode: 0644]

index 1533a75f073a346236be3c9d75ee5cf30ecb02c8..2464d0b30708ca5af1a7ad720c08d1442ad6a8b2 100644 (file)
@@ -1895,6 +1895,7 @@ testsuite/a11y/state/Makefile
 testsuite/css/Makefile
 testsuite/css/parser/Makefile
 testsuite/css/nodes/Makefile
+testsuite/css/style/Makefile
 testsuite/gdk/Makefile
 testsuite/gtk/Makefile
 testsuite/reftests/Makefile
index 4ecb9dfc17ccd44ce6f480e8a4657bec010fa7ad..091591a17402a58aa0b8adb8463ccdccae9dce41 100644 (file)
@@ -2,7 +2,7 @@ include $(top_srcdir)/Makefile.decl
 
 NULL =
 
-SUBDIRS = parser nodes
+SUBDIRS = parser nodes style
 
 check_PROGRAMS = $(TEST_PROGS)
 test_in_files =
diff --git a/testsuite/css/style/Makefile.am b/testsuite/css/style/Makefile.am
new file mode 100644 (file)
index 0000000..9f2542d
--- /dev/null
@@ -0,0 +1,55 @@
+include $(top_srcdir)/Makefile.decl
+
+NULL =
+
+CLEANFILES =
+
+TEST_PROGS += test-css-style
+test_in_files = test-css-style.test.in
+
+check_PROGRAMS = $(TEST_PROGS)
+
+test_css_style_CFLAGS = \
+        -I$(top_srcdir)                 \
+        -I$(top_builddir)/gdk           \
+        -I$(top_srcdir)/gdk             \
+        $(GTK_DEBUG_FLAGS)              \
+        $(GTK_DEP_CFLAGS)
+
+test_css_style_LDADD = \
+        $(top_builddir)/gdk/libgdk-3.la \
+        $(top_builddir)/gtk/libgtk-3.la \
+        $(GTK_DEP_LIBS)
+
+test_css_style_SOURCES = \
+        test-css-style.c
+
+test_data = \
+       $(NULL)
+
+EXTRA_DIST += $(test_in_files) $(test_data)
+
+if BUILDOPT_INSTALL_TESTS
+insttestdir=$(libexecdir)/installed-tests/$(PACKAGE)/css/style
+insttest_PROGRAMS = $(TEST_PROGS)
+insttest_DATA = $(test_data)
+
+substitutions = \
+        -e s,@libexecdir\@,$(libexecdir),g \
+        $(NULL)
+
+test_files = $(test_in_files:.test.in=.test)
+
+$(test_files): %.test: %.test.in
+        $(AM_V_GEN) sed $(substitutions) $< > $@.tmp && mv $@.tmp $@
+
+EXTRA_DIST += $(test_files)
+
+CLEANFILES += $(test_files)
+
+testmetadir = $(datadir)/installed-tests/$(PACKAGE)/css/style
+testmeta_DATA = $(test_files)
+endif
+
+
+-include $(top_srcdir)/git.mk
diff --git a/testsuite/css/style/test-css-style.c b/testsuite/css/style/test-css-style.c
new file mode 100644 (file)
index 0000000..c0470a1
--- /dev/null
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2015 Red Hat Inc.
+ *
+ * Author:
+ *      Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <glib/gstdio.h>
+#include <gtk/gtk.h>
+
+/* There shall be no other styles */
+#define GTK_STYLE_PROVIDER_PRIORITY_FORCE G_MAXUINT
+
+char *
+test_get_other_file (const char *ui_file, const char *extension)
+{
+  GString *file = g_string_new (NULL);
+
+  if (g_str_has_suffix (ui_file, ".ui"))
+    g_string_append_len (file, ui_file, strlen (ui_file) - strlen (".ui"));
+  else
+    g_string_append (file, ui_file);
+
+  g_string_append (file, extension);
+
+  if (!g_file_test (file->str, G_FILE_TEST_EXISTS))
+    {
+      g_string_free (file, TRUE);
+      return NULL;
+    }
+
+  return g_string_free (file, FALSE);
+}
+
+static char *
+diff_with_file (const char  *file1,
+                char        *text,
+                gssize       len,
+                GError     **error)
+{
+  const char *command[] = { "diff", "-u", file1, NULL, NULL };
+  char *diff, *tmpfile;
+  int fd;
+
+  diff = NULL;
+
+  if (len < 0)
+    len = strlen (text);
+  
+  /* write the text buffer to a temporary file */
+  fd = g_file_open_tmp (NULL, &tmpfile, error);
+  if (fd < 0)
+    return NULL;
+
+  if (write (fd, text, len) != (int) len)
+    {
+      close (fd);
+      g_set_error (error,
+                   G_FILE_ERROR, G_FILE_ERROR_FAILED,
+                   "Could not write data to temporary file '%s'", tmpfile);
+      goto done;
+    }
+  close (fd);
+  command[3] = tmpfile;
+
+  /* run diff command */
+  g_spawn_sync (NULL, 
+                (char **) command,
+                NULL,
+                G_SPAWN_SEARCH_PATH,
+                NULL, NULL,
+               &diff,
+                NULL, NULL,
+                error);
+
+done:
+  g_unlink (tmpfile);
+  g_free (tmpfile);
+
+  return diff;
+}
+
+static void
+load_ui_file (GFile *file, gboolean generate)
+{
+  GtkBuilder *builder;
+  GtkWidget *window;
+  GtkStyleContext *context;
+  char *output, *diff;
+  char *ui_file, *css_file, *reference_file;
+  GtkCssProvider *provider;
+  GError *error = NULL;
+
+  ui_file = g_file_get_path (file);
+
+  css_file = test_get_other_file (ui_file, ".css");
+  g_assert (css_file != NULL);
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_path (provider, css_file, &error);
+  g_assert_no_error (error);
+  gtk_style_context_add_provider_for_screen (gdk_screen_get_default (),
+                                             GTK_STYLE_PROVIDER (provider),
+                                             GTK_STYLE_PROVIDER_PRIORITY_FORCE);
+
+  builder = gtk_builder_new_from_file (ui_file);
+  window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
+
+  g_assert (window != NULL);
+
+  context = gtk_widget_get_style_context (window);
+
+  output = gtk_style_context_to_string (context, GTK_STYLE_CONTEXT_PRINT_RECURSE |
+                                                 GTK_STYLE_CONTEXT_PRINT_SHOW_STYLE);
+
+  if (generate)
+    {
+      g_print ("%s", output);
+      goto out;
+    }
+
+  reference_file = test_get_other_file (ui_file, ".nodes");
+
+  diff = diff_with_file (reference_file, output, -1, &error);
+  g_assert_no_error (error);
+
+  if (diff && diff[0])
+    {
+      g_test_message ("Resulting output doesn't match reference:\n%s", diff);
+      g_test_fail ();
+    }
+  g_free (reference_file);
+  g_free (diff);
+
+out:
+  gtk_style_context_remove_provider_for_screen (gdk_screen_get_default (),
+                                                GTK_STYLE_PROVIDER (provider));
+  g_object_unref (provider);
+
+  g_free (output);
+  g_free (ui_file);
+  g_free (css_file);
+}
+
+static void
+test_ui_file (GFile *file)
+{
+  load_ui_file (file, FALSE);
+}
+
+static void
+add_test_for_file (GFile *file)
+{
+  char *path;
+
+  path = g_file_get_path (file);
+
+  g_test_add_vtable (path,
+                     0,
+                     g_object_ref (file),
+                     NULL,
+                     (GTestFixtureFunc) test_ui_file,
+                     (GTestFixtureFunc) g_object_unref);
+
+  g_free (path);
+}
+
+static int
+compare_files (gconstpointer a, gconstpointer b)
+{
+  GFile *file1 = G_FILE (a);
+  GFile *file2 = G_FILE (b);
+  char *path1, *path2;
+  int result;
+
+  path1 = g_file_get_path (file1);
+  path2 = g_file_get_path (file2);
+
+  result = strcmp (path1, path2);
+
+  g_free (path1);
+  g_free (path2);
+
+  return result;
+}
+
+static void
+add_tests_for_files_in_directory (GFile *dir)
+{
+  GFileEnumerator *enumerator;
+  GFileInfo *info;
+  GList *files;
+  GError *error = NULL;
+
+  enumerator = g_file_enumerate_children (dir, G_FILE_ATTRIBUTE_STANDARD_NAME, 0, NULL, &error);
+  g_assert_no_error (error);
+  files = NULL;
+
+  while ((info = g_file_enumerator_next_file (enumerator, NULL, &error)))
+    {
+      const char *filename;
+
+      filename = g_file_info_get_name (info);
+
+      if (!g_str_has_suffix (filename, ".ui") ||
+          g_str_has_suffix (filename, ".nodes"))
+        {
+          g_object_unref (info);
+          continue;
+        }
+
+      files = g_list_prepend (files, g_file_get_child (dir, filename));
+
+      g_object_unref (info);
+    }
+
+  g_assert_no_error (error);
+  g_object_unref (enumerator);
+
+  files = g_list_sort (files, compare_files);
+  g_list_foreach (files, (GFunc) add_test_for_file, NULL);
+  g_list_free_full (files, g_object_unref);
+}
+
+int
+main (int argc, char **argv)
+{
+  g_setenv ("GTK_CSS_DEBUG", "1", TRUE);
+
+  gtk_test_init (&argc, &argv);
+
+  g_object_set (gtk_settings_get_default (),
+                "gtk-font-name", "Sans",
+                NULL);
+  if (argc < 2)
+    {
+      const char *basedir;
+      GFile *dir;
+
+      basedir = g_test_get_dir (G_TEST_DIST);
+      dir = g_file_new_for_path (basedir);
+      add_tests_for_files_in_directory (dir);
+
+      g_object_unref (dir);
+    }
+  else if (strcmp (argv[1], "--generate") == 0)
+    {
+      if (argc >= 3)
+        {
+          GFile *file = g_file_new_for_commandline_arg (argv[2]);
+
+          load_ui_file (file, TRUE);
+
+          g_object_unref (file);
+        }
+    }
+  else
+    {
+      guint i;
+
+      for (i = 1; i < argc; i++)
+        {
+          GFile *file = g_file_new_for_commandline_arg (argv[i]);
+
+          add_test_for_file (file);
+
+          g_object_unref (file);
+        }
+    }
+
+  return g_test_run ();
+}
+
diff --git a/testsuite/css/style/test-css-style.test.in b/testsuite/css/style/test-css-style.test.in
new file mode 100644 (file)
index 0000000..308264c
--- /dev/null
@@ -0,0 +1,3 @@
+[Test]
+Exec=/bin/sh -c "cd @libexecdir@/installed-tests/gtk+/css/style && @libexecdir@/installed-tests/gtk+/css/style/test-css-style
+Type=session