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# SPDX-FileCopyrightText: 2020-2022 Blender Authors
#
# SPDX-License-Identifier: Apache-2.0
import bpy
import os
import pprint
import unittest
class TestHelper(unittest.TestCase):
def __init__(self, args):
super().__init__()
self.args = args
@staticmethod
def id_to_uid(id_data):
return (type(id_data).__name__,
id_data.name_full,
id_data.users)
@classmethod
def blender_data_to_tuple(cls, bdata, pprint_name=None):
ret = sorted(tuple((cls.id_to_uid(k), sorted(tuple(cls.id_to_uid(vv) for vv in v)))
for k, v in bdata.user_map().items()))
if pprint_name is not None:
print("\n%s:" % pprint_name)
pprint.pprint(ret)
return ret
@staticmethod
def ensure_path(path):
if not os.path.exists(path):
os.makedirs(path)
def run_all_tests(self):
for inst_attr_id in dir(self):
if not inst_attr_id.startswith("test_"):
continue
inst_attr = getattr(self, inst_attr_id)
if not callable(inst_attr):
continue
self.setUp()
try:
inst_attr()
finally:
self.tearDown()
class TestBlendLibLinkHelper(TestHelper):
"""
Generate relatively complex data layout accross several blendfiles.
Useful for testing link/append/etc., but also data relationships e.g.
"""
def __init__(self, args):
assert hasattr(args, "src_test_dir")
assert hasattr(args, "output_dir")
super().__init__(args)
@staticmethod
def reset_blender():
bpy.ops.wm.read_homefile(use_empty=True, use_factory_startup=True)
bpy.data.orphans_purge(do_recursive=True)
def unique_blendfile_name(self, base_name):
return base_name + self.__class__.__name__ + ".blend"
# Utils generating common data patterns.
# Assume that the current blendfile is cleared and empty.
def gen_indirect_library_data_(self):
im = bpy.data.images.load(os.path.join(self.args.src_test_dir,
"imbuf_io",
"reference",
"jpeg-rgb-90__from__rgba08.jpg"))
im.name = "LibMaterial"
self.assertTrue(len(im.pixels) > 0)
self.assertTrue(im.has_data)
ma = bpy.data.materials.new("LibMaterial")
ma.use_fake_user = True
out_node = ma.node_tree.nodes.new("ShaderNodeOutputMaterial")
bsdf_node = ma.node_tree.nodes.new("ShaderNodeBsdfPrincipled")
ma.node_tree.links.new(bsdf_node.outputs["BSDF"], out_node.inputs["Surface"])
teximage_node = ma.node_tree.nodes.new("ShaderNodeTexImage")
teximage_node.image = im
ma.node_tree.links.new(bsdf_node.inputs["Base Color"], teximage_node.outputs["Color"])
def gen_library_data_(self):
me = bpy.data.meshes.new("LibMesh")
ob = bpy.data.objects.new("LibMesh", me)
coll = bpy.data.collections.new("LibMesh")
coll.objects.link(ob)
bpy.context.scene.collection.children.link(coll)
# Actual init code, generating blendfiles for various linking/appending scenarii.
def init_lib_data_basic(self):
self.reset_blender()
self.gen_library_data_()
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_basic"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
return output_lib_path
def init_lib_data_animated(self):
self.reset_blender()
self.gen_library_data_()
ob = bpy.data.objects[0]
ob_ctrl = bpy.data.objects.new("LibController", None)
coll = bpy.data.collections[0]
coll.objects.link(ob_ctrl)
# Add some action & driver animation to `LibMesh`.
# Animate Y location.
ob.location[1] = 0.0
ob.keyframe_insert("location", index=1, frame=1)
ob.location[1] = -5.0
ob.keyframe_insert("location", index=1, frame=10)
# Drive X location.
ob_drv = ob.driver_add("location", 0)
ob_drv.driver.type = 'AVERAGE'
ob_drv_var = ob_drv.driver.variables.new()
ob_drv_var.type = 'TRANSFORMS'
ob_drv_var.targets[0].id = ob_ctrl
ob_drv_var.targets[0].transform_type = 'LOC_X'
# Add some action & driver animation to `LibController`.
# Animate X location.
ob_ctrl.location[0] = 0.0
ob_ctrl.keyframe_insert("location", index=0, frame=1)
ob_ctrl.location[0] = 5.0
ob_ctrl.keyframe_insert("location", index=0, frame=10)
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_animated"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
return output_lib_path
def init_lib_data_indirect_lib(self):
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Create an indirect library containing a material, and an image texture.
self.reset_blender()
self.gen_indirect_library_data_()
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_indirect_material"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
# Create a main library containing object etc., and linking material from indirect library.
self.reset_blender()
link_dir = os.path.join(output_lib_path, "Material")
bpy.ops.wm.link(directory=link_dir, filename="LibMaterial")
ma = bpy.data.materials[0]
self.gen_library_data_()
me = bpy.data.meshes[0]
me.materials.append(ma)
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_indirect_main"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
return output_lib_path
def init_lib_data_packed_indirect_lib(self):
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Create an indirect library containing a material, and an image texture.
self.reset_blender()
self.gen_indirect_library_data_()
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_indirect_material"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
# Create a main library containing object etc., and linking material from indirect library.
self.reset_blender()
self.gen_library_data_()
link_dir = os.path.join(output_lib_path, "Material")
bpy.ops.wm.link(directory=link_dir, filename="LibMaterial")
ma = bpy.data.pack_linked_ids_hierarchy(bpy.data.materials[0])
me = bpy.data.meshes[0]
me.materials.append(ma)
bpy.ops.outliner.orphans_purge()
self.assertEqual(len(bpy.data.materials), 1)
self.assertTrue(bpy.data.materials[0].is_linked_packed)
self.assertEqual(len(bpy.data.images), 1)
self.assertTrue(bpy.data.images[0].is_linked_packed)
self.assertEqual(len(bpy.data.libraries), 2)
self.assertFalse(bpy.data.libraries[0].is_archive)
self.assertTrue(bpy.data.libraries[1].is_archive)
self.assertIn(bpy.data.libraries[1].name, bpy.data.libraries[0].archive_libraries)
output_dir = self.args.output_dir
self.ensure_path(output_dir)
# Take care to keep the name unique so multiple test jobs can run at once.
output_lib_path = os.path.join(output_dir, self.unique_blendfile_name("blendlib_indirect_main"))
bpy.ops.wm.save_as_mainfile(filepath=output_lib_path, check_existing=False, compress=False)
return output_lib_path
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