[librsvg] tests/render-crash: New test for things that crash the rendering code

[Federico Mena Quintero <federico src gnome org>]

commit 3a3becd2045ed6b5e264bdfbd7c53c799e5abe7c
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jan 11 15:50:26 2017 -0600

    tests/render-crash: New test for things that crash the rendering code
    
    Sometimes we don't have rendering bugs in the generated image, but SVG
    files that just crash the rendering code.  Add a test for this.  If you
    put a SVG under tests/fixtures/render-crash, that file is expected to
    render and *not* crash.  The actual rendered image is ignored.

 tests/Makefile.am    |    6 ++++
 tests/render-crash.c |   68 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+), 0 deletions(-)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 7f9b24e..babd051 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -4,6 +4,7 @@ test_programs = \
        rsvg-test       \
        crash           \
        styles          \
+       render-crash    \
        dimensions
 
 test_utils_common_sources = \
@@ -18,6 +19,10 @@ crash_SOURCES = \
        crash.c         \
        $(test_utils_common_sources)
 
+render_crash_SOURCES = \
+       render-crash.c  \
+       $(test_utils_common_sources)
+
 styles_SOURCES = \
        styles.c        \
        $(test_utils_common_sources)
@@ -47,6 +52,7 @@ dist_installed_test_data =                                    \
        $(wildcard $(srcdir)/fixtures/reftests/bugs/*.png)      \
        $(wildcard $(srcdir)/fixtures/reftests/svg1.1/*.svg)    \
        $(wildcard $(srcdir)/fixtures/reftests/svg1.1/*.png)    \
+       $(wildcard $(srcdir)/fixtures/render-crash/*.svg)       \
        fixtures/dimensions/bug564527.svg                       \
        fixtures/dimensions/bug614018.svg                       \
        fixtures/dimensions/bug612951.svg                       \
diff --git a/tests/render-crash.c b/tests/render-crash.c
new file mode 100644
index 0000000..6e9678c
--- /dev/null
+++ b/tests/render-crash.c
@@ -0,0 +1,68 @@
+/* vim: set ts=4 nowrap ai expandtab sw=4: */
+
+#include <glib.h>
+#include "rsvg.h"
+#include "rsvg-compat.h"
+#include "test-utils.h"
+
+static void
+test_render_crash (gconstpointer data)
+{
+    GFile *file = G_FILE (data);
+    RsvgHandle *handle;
+    GError *error = NULL;
+    RsvgDimensionData dimensions;
+    cairo_surface_t *surface;
+    cairo_t *cr;
+
+    handle = rsvg_handle_new_from_gfile_sync (file, RSVG_HANDLE_FLAGS_NONE, NULL, &error);
+    g_assert_no_error (error);
+    g_assert (handle != NULL);
+
+    rsvg_handle_get_dimensions (handle, &dimensions);
+    g_assert (dimensions.width > 0);
+    g_assert (dimensions.height > 0);
+    surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+                                         dimensions.width, dimensions.height);
+    cr = cairo_create (surface);
+    g_assert (rsvg_handle_render_cairo (handle, cr));
+
+    cairo_surface_destroy (surface);
+    cairo_destroy (cr);
+
+    g_object_unref (handle);
+}
+
+int
+main (int argc, char *argv[])
+{
+    GFile *base, *crash;
+    int result;
+
+    RSVG_G_TYPE_INIT;
+    g_test_init (&argc, &argv, NULL);
+
+    if (argc < 2) {
+        base = g_file_new_for_path (test_utils_get_test_data_path ());
+        crash = g_file_get_child (base, "render-crash");
+        test_utils_add_test_for_all_files ("/render-crash", crash, crash, test_render_crash, NULL);
+        g_object_unref (base);
+        g_object_unref (crash);
+    } else {
+        guint i;
+
+        for (i = 1; i < argc; i++) {
+            GFile *file = g_file_new_for_commandline_arg (argv[i]);
+
+            test_utils_add_test_for_all_files ("/render-crash", NULL, file, test_render_crash, NULL);
+
+            g_object_unref (file);
+        }
+    }
+
+    result = g_test_run ();
+
+    rsvg_cleanup ();
+
+    return result;
+}