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#!/usr/bin/env python3
# ##### BEGIN GPL LICENSE BLOCK #####
#
# 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.
#
# ##### END GPL LICENSE BLOCK #####
#
# Call as follows:
# python collada_mesh_simple.py --blender PATH_TO_BLENDER_EXE --testdir PATH_TO_SVN/lib/tests/collada/mesh
#
import sys
import bpy
import argparse
import functools
import shutil
import tempfile
import unittest
import difflib
import pathlib
from pathlib import Path
def with_tempdir(wrapped):
"""Creates a temporary directory for the function, cleaning up after it returns normally.
When the wrapped function raises an exception, the contents of the temporary directory
remain available for manual inspection.
The wrapped function is called with an extra positional argument containing
the pathlib.Path() of the temporary directory.
"""
@functools.wraps(wrapped)
def decorator(*args, **kwargs):
dirname = tempfile.mkdtemp(prefix='blender-collada-test')
#print("Using tempdir %s" % dirname)
try:
retval = wrapped(*args, pathlib.Path(dirname), **kwargs)
except:
print('Exception in %s, not cleaning up temporary directory %s' % (wrapped, dirname))
raise
else:
shutil.rmtree(dirname)
return retval
return decorator
LINE = "+----------------------------------------------------------------"
class AbstractColladaTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.testdir = pathlib.Path(args.testdir)
def checkdae(self, reference, export):
"""
collada verifier checks if exported dae file is the same as reference dae
"""
ref = open(reference)
exp = open(export)
diff = difflib.unified_diff(ref.readlines(), exp.readlines(), lineterm='', n=0)
ref.close()
exp.close()
diff_count = 0
for line in diff:
error = True
for prefix in ('---', '+++', '@@'):
# Ignore diff metadata
if line.startswith(prefix):
error = False
break
else:
# Ignore time stamps
for ignore in ('<created>', '<modified>', '<authoring_tool>'):
if line[1:].strip().startswith(ignore):
error = False
break
if error:
diff_count += 1
pline = line.strip()
if diff_count == 1:
print("\n%s" % LINE)
print("|Test has errors:")
print(LINE)
pre = "reference" if pline[0] == "-" else "generated"
print("| %s:%s" % (pre, pline[1:]))
if diff_count > 0:
print(LINE)
print("ref :%s" % reference)
print("test:%s" % export)
print("%s\n" % LINE)
return diff_count == 0
class MeshExportTest(AbstractColladaTest):
@with_tempdir
def test_export_single_mesh(self, tempdir: pathlib.Path):
test = "mesh_simple_001"
reference_dae = self.testdir / Path("%s.dae" % test)
outfile = tempdir / Path("%s_out.dae" % test)
bpy.ops.wm.collada_export(
filepath="%s" % str(outfile),
check_existing=True,
filemode=8,
display_type="DEFAULT",
sort_method="FILE_SORT_ALPHA",
apply_modifiers=False,
export_mesh_type=0,
export_mesh_type_selection="view",
selected=False,
include_children=False,
include_armatures=False,
include_shapekeys=True,
deform_bones_only=False,
sampling_rate=0,
active_uv_only=False,
use_texture_copies=True,
triangulate=False,
use_object_instantiation=True,
use_blender_profile=True,
sort_by_name=False,
export_transformation_type=0,
export_transformation_type_selection="matrix",
export_texture_type=0,
export_texture_type_selection="mat",
open_sim=False,
limit_precision=False,
keep_bind_info=False,
)
# Now check the resulting Collada file.
if not self.checkdae(reference_dae, outfile):
self.fail()
if __name__ == '__main__':
sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
parser = argparse.ArgumentParser()
parser.add_argument('--testdir', required=True)
args, remaining = parser.parse_known_args()
unittest.main(argv=sys.argv[0:1] + remaining)
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