[lasem] tests: add rendering of the test suite file to the unit tests.

[Emmanuel Pacaud <emmanuel src gnome org>]

commit fb59f4b1a22a3f3c3ae478d933abcc6b164486b7
Author: Emmanuel Pacaud <emmanuel gnome org>
Date:   Wed Nov 3 23:12:18 2010 +0100

    tests: add rendering of the test suite file to the unit tests.

 tests/.gitignore  |    1 +
 tests/Makefile.am |    6 ++-
 tests/suite.c     |  115 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 121 insertions(+), 1 deletions(-)
---
diff --git a/tests/.gitignore b/tests/.gitignore
index 857664f..159e1c4 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -1,2 +1,3 @@
 dom
+suite
 lsm-test
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 38293e4..2e04d94 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -12,9 +12,13 @@ noinst_PROGRAMS = lsm-test
 lsm_test_SOURCES = lsmtest.c
 lsm_test_LDADD = $(test_progs_ldadd)
 
-TEST_PROGS += dom
+TEST_PROGS += dom suite
 
 noinst_PROGRAMS += $(TEST_PROGS)
 
 dom_SOURCES = dom.c
 dom_LDADD = $(test_progs_ldadd)
+
+suite_SOURCES = suite.c
+suite_LDADD = $(test_progs_ldadd)
+suite_CFLAGS = -DSUITE_DATA_DIRECTORY="\"$(top_srcdir)/tests/data\""
diff --git a/tests/suite.c b/tests/suite.c
new file mode 100644
index 0000000..aeeec8d
--- /dev/null
+++ b/tests/suite.c
@@ -0,0 +1,115 @@
+#include <glib.h>
+#include <string.h>
+#include <lsmdomparser.h>
+
+static GSList *
+build_file_list (const char *path, GRegex *filename_regex)
+{
+	GSList *files = NULL;
+	GDir *directory;
+	GError *error = NULL;
+	const char *entry;
+	char *filename;
+
+	directory = g_dir_open (path, 0, &error);
+	g_assert (error == NULL);
+
+	do {
+		entry = g_dir_read_name (directory);
+		if (entry != NULL &&
+		    strstr (entry, "ignore-") != entry &&
+		    strcmp (entry, "images") != 0)
+		{
+			filename = g_build_filename (path, entry, NULL);
+
+			if (g_file_test (filename, G_FILE_TEST_IS_DIR))
+				files = g_slist_concat (files, build_file_list (filename, filename_regex));
+			else if (g_file_test (filename, G_FILE_TEST_IS_REGULAR) &&
+				 g_regex_match (filename_regex, filename, 0, NULL)) {
+				files = g_slist_prepend (files, g_strdup (filename));
+			}
+
+			g_free (filename);
+		}
+	} while (entry != NULL);
+
+	g_dir_close (directory);
+
+	return files;
+}
+
+static void
+render_test (gconstpointer user_data)
+{
+	const char *filename = user_data;
+	LsmDomDocument *document;
+	LsmDomView *view;
+	LsmBox viewport;
+	unsigned int width, height;
+	cairo_t *cairo;
+	cairo_surface_t *surface;
+
+	document = lsm_dom_document_new_from_path (filename, NULL);
+	g_assert (LSM_IS_DOM_DOCUMENT (document));
+
+	view = lsm_dom_document_create_view (document);
+	g_assert (LSM_IS_DOM_VIEW (view));
+
+	viewport.x = 0.0;
+	viewport.y = 0.0;
+	viewport.width = 480.0;
+	viewport.height = 360.0;
+
+	lsm_dom_document_set_resolution (document, 96);
+	lsm_dom_document_set_viewport_px (document, &viewport);
+	lsm_dom_view_get_size_pixels (LSM_DOM_VIEW (view), &width, &height);
+
+	surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+	cairo = cairo_create (surface);
+	cairo_surface_destroy (surface);
+
+	lsm_dom_view_render (LSM_DOM_VIEW (view), cairo, 1, 1);
+
+	g_assert (cairo_status (cairo) == CAIRO_STATUS_SUCCESS);
+
+	cairo_destroy (cairo);
+
+	g_object_unref (view);
+	g_object_unref (document);
+}
+
+static void
+add_render_tests (gpointer element, gpointer user_data)
+{
+	const char *filename = element;
+	char *test_path = g_strdup_printf ("/render/%s", (char *) element + sizeof (SUITE_DATA_DIRECTORY));
+
+	g_test_add_data_func (test_path, filename, render_test);
+
+	g_free (test_path);
+}
+
+int
+main (int argc, char *argv[])
+{
+	GRegex *filename_regex;
+	GSList *files;
+	int i;
+	int result;
+
+	g_type_init ();
+
+	g_test_init (&argc, &argv, NULL);
+
+	filename_regex = g_regex_new ("\\.(svg|mml)$", 0, 0, NULL);
+	files = build_file_list (SUITE_DATA_DIRECTORY, filename_regex);
+	g_slist_foreach (files, add_render_tests, NULL);
+
+	result = g_test_run();
+
+	g_slist_foreach (files, (GFunc) g_free, NULL);
+	g_slist_free (files);
+	g_regex_unref (filename_regex);
+
+	return result;
+}