Tests: Blendfile-loading test class

This new test class minimally sets up Blender so that it can load blend
files and construct a depsgraph without crashing.

Note that it hasn't been tested on very complex blend files, so it may
still crash when the loaded blend file references/requires uninitialised
data structures.

The test will certainly crash with Blend files created with Blender
older than 2.80, as the versioning code requires space types to be
registered. This is normally done by initialising the window manager,
which is not done in this test. The WM requires Python to run, which in
turn requires that Blender finds the release directory in the same
directory that contains the running executable, which is not the case
for GTest tests (they are written to `bin/tests/executablename`.

Reviewed By: sergey, mont29

Differential Revision: https://developer.blender.org/D6246

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/gtests/blenloader/blendfile_load_test.cc b/tests/gtests/blenloader/blendfile_load_test.cc
new file mode 100644
index 00000000000..2ba3e3fcd88
--- /dev/null
+++ b/tests/gtests/blenloader/blendfile_load_test.cc
@@ -0,0 +1,31 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2019 by Blender Foundation.
+ */
+#include "blendfile_loading_base_test.h"
+
+class BlendfileLoadingTest : public BlendfileLoadingBaseTest {
+};
+
+TEST_F(BlendfileLoadingTest, CanaryTest)
+{
+  /* Load the smallest blend file we have in the SVN lib/tests directory. */
+  if (!blendfile_load("modifier_stack/array_test.blend")) {
+    return;
+  }
+  depsgraph_create(DAG_EVAL_RENDER);
+  EXPECT_NE(nullptr, this->depsgraph);
+}