Files
blender/tests/python/bl_pyapi_idprop_datablock.py
Campbell Barton eb8afc39f8 Tests: remove noisy output from bl_pyapi_idprop_datablock
As part of expected behavior this printed an exception,
making it seem as if there was an error in the test.

Now the exception is suppressed from the output, ensuring it matches
an the expected output.
2021-10-12 17:58:52 +11:00

391 lines
12 KiB
Python

# ##### 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 #####
# ./blender.bin --background -noaudio --python tests/python/bl_pyapi_idprop_datablock.py -- --verbose
import contextlib
import inspect
import io
import os
import re
import sys
import tempfile
import bpy
from bpy.types import UIList
arr_len = 100
ob_cp_count = 100
# Set before execution.
lib_path = None
test_path = None
def print_fail_msg_and_exit(msg):
def __LINE__():
try:
raise Exception
except:
return sys.exc_info()[2].tb_frame.f_back.f_back.f_back.f_lineno
def __FILE__():
return inspect.currentframe().f_code.co_filename
print("'%s': %d >> %s" % (__FILE__(), __LINE__(), msg), file=sys.stderr)
sys.stderr.flush()
sys.stdout.flush()
os._exit(1)
def expect_false_or_abort(expr, msg=None):
if not expr:
if not msg:
msg = "test failed"
print_fail_msg_and_exit(msg)
def expect_exception_or_abort(*, fn, ex):
try:
fn()
exception = False
except ex:
exception = True
if exception:
return # OK
print_fail_msg_and_exit("test failed")
def expect_ouput_or_abort(*, fn, match_stderr=None, match_stdout=None):
stdout, stderr = io.StringIO(), io.StringIO()
with (contextlib.redirect_stderr(stderr), contextlib.redirect_stdout(stdout)):
fn()
for (handle, match) in ((stdout, match_stdout), (stderr, match_stderr)):
if not match:
continue
handle.seek(0)
output = handle.read()
if not re.match(match, output):
print_fail_msg_and_exit("%r not found in %r" % (match, output))
class TestClass(bpy.types.PropertyGroup):
test_prop: bpy.props.PointerProperty(type=bpy.types.Object)
name: bpy.props.StringProperty()
def get_scene(lib_name, sce_name):
for s in bpy.data.scenes:
if s.name == sce_name:
if (
(s.library and s.library.name == lib_name) or
(lib_name is None and s.library is None)
):
return s
def init():
bpy.utils.register_class(TestClass)
bpy.types.Object.prop_array = bpy.props.CollectionProperty(
name="prop_array",
type=TestClass)
bpy.types.Object.prop = bpy.props.PointerProperty(type=bpy.types.Object)
def make_lib():
bpy.ops.wm.read_factory_settings()
# datablock pointer to the Camera object
bpy.data.objects["Cube"].prop = bpy.data.objects['Camera']
# array of datablock pointers to the Light object
for i in range(0, arr_len):
a = bpy.data.objects["Cube"].prop_array.add()
a.test_prop = bpy.data.objects['Light']
a.name = a.test_prop.name
# make unique named copy of the cube
ob = bpy.data.objects["Cube"].copy()
bpy.context.collection.objects.link(ob)
bpy.data.objects["Cube.001"].name = "Unique_Cube"
# duplicating of Cube
for i in range(0, ob_cp_count):
ob = bpy.data.objects["Cube"].copy()
bpy.context.collection.objects.link(ob)
# nodes
bpy.data.scenes["Scene"].use_nodes = True
bpy.data.scenes["Scene"].node_tree.nodes['Render Layers']["prop"] =\
bpy.data.objects['Camera']
# rename scene and save
bpy.data.scenes["Scene"].name = "Scene_lib"
bpy.ops.wm.save_as_mainfile(filepath=lib_path)
def check_lib():
# check pointer
expect_false_or_abort(bpy.data.objects["Cube"].prop == bpy.data.objects['Camera'])
# check array of pointers in duplicated object
for i in range(0, arr_len):
expect_false_or_abort(
bpy.data.objects["Cube.001"].prop_array[i].test_prop ==
bpy.data.objects['Light'])
def check_lib_linking():
# open startup file
bpy.ops.wm.read_factory_settings()
# link scene to the startup file
with bpy.data.libraries.load(lib_path, link=True) as (data_from, data_to):
data_to.scenes = ["Scene_lib"]
o = bpy.data.scenes["Scene_lib"].objects['Unique_Cube']
expect_false_or_abort(o.prop_array[0].test_prop == bpy.data.scenes["Scene_lib"].objects['Light'])
expect_false_or_abort(o.prop == bpy.data.scenes["Scene_lib"].objects['Camera'])
expect_false_or_abort(o.prop.library == o.library)
bpy.ops.wm.save_as_mainfile(filepath=test_path)
def check_linked_scene_copying():
# full copy of the scene with datablock props
bpy.ops.wm.open_mainfile(filepath=test_path)
bpy.context.window.scene = bpy.data.scenes["Scene_lib"]
bpy.ops.scene.new(type='FULL_COPY')
# check save/open
bpy.ops.wm.save_as_mainfile(filepath=test_path)
bpy.ops.wm.open_mainfile(filepath=test_path)
intern_sce = get_scene(None, "Scene_lib")
extern_sce = get_scene("lib.blend", "Scene_lib")
# check node's props
# must point to own scene camera
expect_false_or_abort(
intern_sce.node_tree.nodes['Render Layers']["prop"] and
not (intern_sce.node_tree.nodes['Render Layers']["prop"] ==
extern_sce.node_tree.nodes['Render Layers']["prop"]))
def check_scene_copying():
# full copy of the scene with datablock props
bpy.ops.wm.open_mainfile(filepath=lib_path)
bpy.context.window.scene = bpy.data.scenes["Scene_lib"]
bpy.ops.scene.new(type='FULL_COPY')
path = test_path + "_"
# check save/open
bpy.ops.wm.save_as_mainfile(filepath=path)
bpy.ops.wm.open_mainfile(filepath=path)
first_sce = get_scene(None, "Scene_lib")
second_sce = get_scene(None, "Scene_lib.001")
# check node's props
# must point to own scene camera
expect_false_or_abort(
not (first_sce.node_tree.nodes['Render Layers']["prop"] ==
second_sce.node_tree.nodes['Render Layers']["prop"]))
# count users
def test_users_counting():
bpy.ops.wm.read_factory_settings()
Light_us = bpy.data.objects["Light"].data.users
n = 1000
for i in range(0, n):
bpy.data.objects["Cube"]["a%s" % i] = bpy.data.objects["Light"].data
expect_false_or_abort(bpy.data.objects["Light"].data.users == Light_us + n)
for i in range(0, int(n / 2)):
bpy.data.objects["Cube"]["a%s" % i] = 1
expect_false_or_abort(bpy.data.objects["Light"].data.users == Light_us + int(n / 2))
# linking
def test_linking():
make_lib()
check_lib()
check_lib_linking()
check_linked_scene_copying()
check_scene_copying()
# check restrictions for datablock pointers for some classes; GUI for manual testing
def test_restrictions1():
class TEST_Op(bpy.types.Operator):
bl_idname = 'scene.test_op'
bl_label = 'Test'
bl_options = {"INTERNAL"}
str_prop: bpy.props.StringProperty(name="str_prop")
# disallow registration of datablock properties in operators
# will be checked in the draw method (test manually)
# also, see console:
# ValueError: bpy_struct "SCENE_OT_test_op" doesn't support datablock properties
id_prop: bpy.props.PointerProperty(type=bpy.types.Object)
def execute(self, context):
return {'FINISHED'}
# just panel for testing the poll callback with lots of objects
class TEST_PT_DatablockProp(bpy.types.Panel):
bl_label = "Datablock IDProp"
bl_space_type = "PROPERTIES"
bl_region_type = "WINDOW"
bl_context = "render"
def draw(self, context):
self.layout.prop_search(context.scene, "prop", bpy.data, "objects")
self.layout.template_ID(context.scene, "prop1")
self.layout.prop_search(context.scene, "prop2", bpy.data, "node_groups")
op = self.layout.operator(TEST_Op.bl_idname)
op.str_prop = "test string"
def test_fn(op):
op["ob"] = bpy.data.objects['Unique_Cube']
expect_exception_or_abort(
fn=lambda: test_fn(op),
ex=ImportError,
)
expect_false_or_abort(not hasattr(op, "id_prop"))
bpy.utils.register_class(TEST_PT_DatablockProp)
expect_ouput_or_abort(
fn=lambda: bpy.utils.register_class(TEST_Op),
match_stderr="^ValueError: bpy_struct \"SCENE_OT_test_op\" registration error:",
)
def poll(self, value):
return value.name in bpy.data.scenes["Scene_lib"].objects
def poll1(self, value):
return True
bpy.types.Scene.prop = bpy.props.PointerProperty(type=bpy.types.Object)
bpy.types.Scene.prop1 = bpy.props.PointerProperty(type=bpy.types.Object, poll=poll)
bpy.types.Scene.prop2 = bpy.props.PointerProperty(type=bpy.types.NodeTree, poll=poll1)
# check poll effect on UI (poll returns false => red alert)
bpy.context.scene.prop = bpy.data.objects["Light.001"]
bpy.context.scene.prop1 = bpy.data.objects["Light.001"]
# check incorrect type assignment
def sub_test():
# NodeTree id_prop
bpy.context.scene.prop2 = bpy.data.objects["Light.001"]
expect_exception_or_abort(
fn=sub_test,
ex=TypeError,
)
bpy.context.scene.prop2 = bpy.data.node_groups.new("Shader", "ShaderNodeTree")
# NOTE: keep since the author thought this useful information.
# print(
# "Please, test GUI performance manually on the Render tab, '%s' panel" %
# TEST_PT_DatablockProp.bl_label, file=sys.stderr,
# )
sys.stderr.flush()
# check some possible regressions
def test_regressions():
bpy.types.Object.prop_str = bpy.props.StringProperty(name="str")
bpy.data.objects["Unique_Cube"].prop_str = "test"
bpy.types.Object.prop_gr = bpy.props.PointerProperty(
name="prop_gr",
type=TestClass,
description="test")
bpy.data.objects["Unique_Cube"].prop_gr = None
# test restrictions for datablock pointers
def test_restrictions2():
class TestClassCollection(bpy.types.PropertyGroup):
prop: bpy.props.CollectionProperty(
name="prop_array",
type=TestClass)
bpy.utils.register_class(TestClassCollection)
class TestPrefs(bpy.types.AddonPreferences):
bl_idname = "testprefs"
# expecting crash during registering
my_prop2: bpy.props.PointerProperty(type=TestClass)
prop: bpy.props.PointerProperty(
name="prop",
type=TestClassCollection,
description="test")
bpy.types.Addon.a = bpy.props.PointerProperty(type=bpy.types.Object)
class TEST_UL_list(UIList):
test: bpy.props.PointerProperty(type=bpy.types.Object)
def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index):
layout.prop(item, "name", text="", emboss=False, icon_value=icon)
expect_exception_or_abort(
fn=lambda: bpy.utils.register_class(TestPrefs),
ex=ValueError,
)
expect_exception_or_abort(
fn=lambda: bpy.utils.register_class(TEST_UL_list),
ex=ValueError,
)
bpy.utils.unregister_class(TestClassCollection)
def main():
global lib_path
global test_path
with tempfile.TemporaryDirectory() as temp_dir:
lib_path = os.path.join(temp_dir, "lib.blend")
test_path = os.path.join(temp_dir, "test.blend")
init()
test_users_counting()
test_linking()
test_restrictions1()
expect_exception_or_abort(
fn=test_regressions,
ex=AttributeError,
)
test_restrictions2()
if __name__ == "__main__":
main()