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|
# SPDX-FileCopyrightText: 2021-2023 Blender Authors
#
# SPDX-License-Identifier: GPL-2.0-or-later
import pathlib
import sys
import unittest
import tempfile
import bpy
args = None
class AbstractNodeGroupInterfaceTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.testdir = args.testdir
cls._tempdir = tempfile.TemporaryDirectory()
cls.tempdir = pathlib.Path(cls._tempdir.name)
def setUp(self):
self.assertTrue(self.testdir.exists(),
'Test dir {0} should exist'.format(self.testdir))
# Make sure we always start with a known-empty file.
bpy.ops.wm.open_mainfile(filepath=str(self.testdir / "empty.blend"))
def tearDown(self):
self._tempdir.cleanup()
class NodeGroupInterfaceTests:
tree_type = None
group_node_type = None
# Tree instance where node groups can be added
main_tree = None
def make_group(self):
tree = bpy.data.node_groups.new("test", self.tree_type)
return tree
def make_instance(self, tree):
group_node = self.main_tree.nodes.new(self.group_node_type)
group_node.node_tree = tree
return group_node
def make_group_and_instance(self):
tree = self.make_group()
group_node = self.make_instance(tree)
return tree, group_node
# Utility method for generating a non-zero default value.
@staticmethod
def make_default_socket_value(socket_type):
if (socket_type == "NodeSocketBool"):
return True
elif (socket_type == "NodeSocketColor"):
return (.5, 1.0, .3, .7)
elif (socket_type == "NodeSocketFloat"):
return 1.23
elif (socket_type == "NodeSocketImage"):
return bpy.data.images.new("test", 4, 4)
elif (socket_type == "NodeSocketInt"):
return -6
elif (socket_type == "NodeSocketMaterial"):
return bpy.data.materials.new("test")
elif (socket_type == "NodeSocketObject"):
return bpy.data.objects.new("test", bpy.data.meshes.new("test"))
elif (socket_type == "NodeSocketRotation"):
return (0.3, 5.0, -42)
elif (socket_type == "NodeSocketString"):
return "Hello World!"
elif (socket_type == "NodeSocketVector"):
return (4.0, -1.0, 0.0)
# Utility method returning a comparator for socket values.
# Not all socket value types are trivially comparable, e.g. colors.
@staticmethod
def make_socket_value_comparator(socket_type):
def cmp_default(test, value, expected):
test.assertEqual(value, expected, f"Value {value} does not match expected value {expected}")
def cmp_array(test, value, expected):
test.assertSequenceEqual(value[:], expected[:], f"Value {value} does not match expected value {expected}")
if (socket_type in {"NodeSocketBool",
"NodeSocketFloat",
"NodeSocketImage",
"NodeSocketInt",
"NodeSocketMaterial",
"NodeSocketObject",
"NodeSocketRotation",
"NodeSocketString"}):
return cmp_default
elif (socket_type in {"NodeSocketColor",
"NodeSocketVector"}):
return cmp_array
def test_empty_nodegroup(self):
tree, group_node = self.make_group_and_instance()
self.assertFalse(tree.interface.items_tree, "Interface not empty")
self.assertFalse(group_node.inputs)
self.assertFalse(group_node.outputs)
def do_test_invalid_socket_type(self, socket_type):
tree = self.make_group()
with self.assertRaises(TypeError):
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
self.assertIsNone(in0, f"Socket created for invalid type {socket_type}")
with self.assertRaises(TypeError):
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
self.assertIsNone(out0, f"Socket created for invalid type {socket_type}")
def do_test_sockets_in_out(self, socket_type):
tree, group_node = self.make_group_and_instance()
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
self.assertIsNotNone(out0, f"Could not create socket of type {socket_type}")
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
self.assertIsNotNone(in0, f"Could not create socket of type {socket_type}")
in1 = tree.interface.new_socket("Input 1", socket_type=socket_type, in_out='INPUT')
self.assertIsNotNone(in1, f"Could not create socket of type {socket_type}")
out1 = tree.interface.new_socket("Output 1", socket_type=socket_type, in_out='OUTPUT')
self.assertIsNotNone(out1, f"Could not create socket of type {socket_type}")
self.assertSequenceEqual([(s.name, s.bl_idname) for s in group_node.inputs], [
("Input 0", socket_type),
("Input 1", socket_type),
])
self.assertSequenceEqual([(s.name, s.bl_idname) for s in group_node.outputs], [
("Output 0", socket_type),
("Output 1", socket_type),
])
def do_test_user_count(self, value, expected_users):
if (isinstance(value, bpy.types.ID)):
self.assertEqual(
value.users,
expected_users,
f"Socket default value has user count {value.users}, expected {expected_users}")
def do_test_socket_type(self, socket_type):
default_value = self.make_default_socket_value(socket_type)
compare_value = self.make_socket_value_comparator(socket_type)
# Create the tree first, add sockets, then create a group instance.
# That way the new instance should reflect the expected default values.
tree = self.make_group()
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
if default_value is not None:
in0.default_value = default_value
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
self.assertIsNotNone(in0, f"Could not create socket of type {socket_type}")
self.assertIsNotNone(out0, f"Could not create socket of type {socket_type}")
# Now make a node group instance to check default values.
group_node = self.make_instance(tree)
if compare_value:
compare_value(self, group_node.inputs[0].default_value, in0.default_value)
# Test ID user count after assigning.
if (hasattr(in0, "default_value")):
# The default value is stored in both the interface and node, it should have 2 users now.
self.do_test_user_count(in0.default_value, 2)
# Copy sockets
in1 = tree.interface.copy(in0)
out1 = tree.interface.copy(out0)
self.assertIsNotNone(in1, "Could not copy socket")
self.assertIsNotNone(out1, "Could not copy socket")
# User count on default values should increment by 2 after copy,
# one user for the interface and one for the group node instance.
if (hasattr(in1, "default_value")):
self.do_test_user_count(in1.default_value, 4)
# Classic outputs..inputs socket layout
def do_test_items_order_classic(self, socket_type):
tree, group_node = self.make_group_and_instance()
tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
self.assertSequenceEqual([(s.name, s.item_type) for s in tree.interface.items_tree], [
("Output 0", 'SOCKET'),
("Input 0", 'SOCKET'),
])
self.assertSequenceEqual([s.name for s in group_node.inputs], [
"Input 0",
])
self.assertSequenceEqual([s.name for s in group_node.outputs], [
"Output 0",
])
# XXX currently no panel state access on node instances.
# self.assertFalse(group_node.panels)
# Mixed sockets and panels
def do_test_items_order_mixed_with_panels(self, socket_type):
tree, group_node = self.make_group_and_instance()
tree.interface.new_panel("Panel 0")
tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
tree.interface.new_panel("Panel 1")
tree.interface.new_socket("Input 1", socket_type=socket_type, in_out='INPUT')
tree.interface.new_panel("Panel 2")
tree.interface.new_socket("Output 1", socket_type=socket_type, in_out='OUTPUT')
tree.interface.new_panel("Panel 3")
# Panels after sockets
self.assertSequenceEqual([(s.name, s.item_type) for s in tree.interface.items_tree], [
("Output 0", 'SOCKET'),
("Output 1", 'SOCKET'),
("Input 0", 'SOCKET'),
("Input 1", 'SOCKET'),
("Panel 0", 'PANEL'),
("Panel 1", 'PANEL'),
("Panel 2", 'PANEL'),
("Panel 3", 'PANEL'),
])
self.assertSequenceEqual([s.name for s in group_node.inputs], [
"Input 0",
"Input 1",
])
self.assertSequenceEqual([s.name for s in group_node.outputs], [
"Output 0",
"Output 1",
])
# XXX currently no panel state access on node instances.
# self.assertSequenceEqual([p.name for p in group_node.panels], [
# "Panel 0",
# "Panel 1",
# "Panel 2",
# "Panel 3",
# ])
def do_test_add(self, socket_type):
tree, group_node = self.make_group_and_instance()
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
self.assertSequenceEqual(tree.interface.items_tree, [in0])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0"])
self.assertSequenceEqual([s.name for s in group_node.outputs], [])
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
self.assertSequenceEqual(tree.interface.items_tree, [out0, in0])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0"])
panel0 = tree.interface.new_panel("Panel 0")
self.assertSequenceEqual(tree.interface.items_tree, [out0, in0, panel0])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0"])
# Add items to the panel.
in1 = tree.interface.new_socket("Input 1", socket_type=socket_type, in_out='INPUT', parent=panel0)
self.assertSequenceEqual(tree.interface.items_tree, [out0, in0, panel0, in1])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0", "Input 1"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0"])
out1 = tree.interface.new_socket("Output 1", socket_type=socket_type, in_out='OUTPUT', parent=panel0)
self.assertSequenceEqual(tree.interface.items_tree, [out0, in0, panel0, out1, in1])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0", "Input 1"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0", "Output 1"])
def do_test_remove(self, socket_type):
tree, group_node = self.make_group_and_instance()
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
panel0 = tree.interface.new_panel("Panel 0")
in1 = tree.interface.new_socket("Input 1", socket_type=socket_type, in_out='INPUT', parent=panel0)
out1 = tree.interface.new_socket("Output 1", socket_type=socket_type, in_out='OUTPUT', parent=panel0)
panel1 = tree.interface.new_panel("Panel 1")
in2 = tree.interface.new_socket("Input 2", socket_type=socket_type, in_out='INPUT', parent=panel1)
out2 = tree.interface.new_socket("Output 2", socket_type=socket_type, in_out='OUTPUT', parent=panel1)
panel2 = tree.interface.new_panel("Panel 2")
self.assertSequenceEqual(tree.interface.items_tree, [out0, in0, panel0, out1, in1, panel1, out2, in2, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 0", "Input 1", "Input 2"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0", "Output 1", "Output 2"])
# Remove from root panel.
tree.interface.remove(in0)
self.assertSequenceEqual(tree.interface.items_tree, [out0, panel0, out1, in1, panel1, out2, in2, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1", "Input 2"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0", "Output 1", "Output 2"])
# Removing a panel should move content to the parent.
tree.interface.remove(panel0)
self.assertSequenceEqual(tree.interface.items_tree, [out0, out1, in1, panel1, out2, in2, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1", "Input 2"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 0", "Output 1", "Output 2"])
tree.interface.remove(out0)
self.assertSequenceEqual(tree.interface.items_tree, [out1, in1, panel1, out2, in2, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1", "Input 2"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 1", "Output 2"])
# Remove content from panel
tree.interface.remove(out2)
self.assertSequenceEqual(tree.interface.items_tree, [out1, in1, panel1, in2, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1", "Input 2"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 1"])
# Remove a panel and its content
tree.interface.remove(panel1, move_content_to_parent=False)
self.assertSequenceEqual(tree.interface.items_tree, [out1, in1, panel2])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 1"])
# Remove empty panel
tree.interface.remove(panel2)
self.assertSequenceEqual(tree.interface.items_tree, [out1, in1])
self.assertSequenceEqual([s.name for s in group_node.inputs], ["Input 1"])
self.assertSequenceEqual([s.name for s in group_node.outputs], ["Output 1"])
def do_test_move(self, socket_type):
tree, group_node = self.make_group_and_instance()
in0 = tree.interface.new_socket("Input 0", socket_type=socket_type, in_out='INPUT')
in1 = tree.interface.new_socket("Input 1", socket_type=socket_type, in_out='INPUT', parent=panel0)
out0 = tree.interface.new_socket("Output 0", socket_type=socket_type, in_out='OUTPUT')
out1 = tree.interface.new_socket("Output 1", socket_type=socket_type, in_out='OUTPUT', parent=panel0)
panel0 = tree.interface.new_panel("Panel 0")
panel1 = tree.interface.new_panel("Panel 1")
class GeometryNodeGroupInterfaceTest(AbstractNodeGroupInterfaceTest, NodeGroupInterfaceTests):
tree_type = "GeometryNodeTree"
group_node_type = "GeometryNodeGroup"
def setUp(self):
super().setUp()
self.main_tree = bpy.data.node_groups.new("main", self.tree_type)
def test_sockets_in_out(self):
self.do_test_sockets_in_out("NodeSocketFloat")
def test_all_socket_types(self):
self.do_test_invalid_socket_type("INVALID_SOCKET_TYPE_11!1")
self.do_test_socket_type("NodeSocketBool")
self.do_test_socket_type("NodeSocketCollection")
self.do_test_socket_type("NodeSocketColor")
self.do_test_socket_type("NodeSocketFloat")
self.do_test_socket_type("NodeSocketGeometry")
self.do_test_socket_type("NodeSocketImage")
self.do_test_socket_type("NodeSocketInt")
self.do_test_socket_type("NodeSocketMaterial")
self.do_test_socket_type("NodeSocketObject")
self.do_test_socket_type("NodeSocketRotation")
self.do_test_invalid_socket_type("NodeSocketShader")
self.do_test_socket_type("NodeSocketString")
self.do_test_invalid_socket_type("NodeSocketTexture")
self.do_test_socket_type("NodeSocketVector")
self.do_test_invalid_socket_type("NodeSocketVirtual")
def test_items_order_classic(self):
self.do_test_items_order_classic("NodeSocketFloat")
def test_items_order_mixed_with_panels(self):
self.do_test_items_order_mixed_with_panels("NodeSocketFloat")
def test_add(self):
self.do_test_add("NodeSocketFloat")
def test_remove(self):
self.do_test_remove("NodeSocketFloat")
class ShaderNodeGroupInterfaceTest(AbstractNodeGroupInterfaceTest, NodeGroupInterfaceTests):
tree_type = "ShaderNodeTree"
group_node_type = "ShaderNodeGroup"
def setUp(self):
super().setUp()
self.material = bpy.data.materials.new("test")
self.main_tree = self.material.node_tree
def test_invalid_socket_type(self):
self.do_test_invalid_socket_type("INVALID_SOCKET_TYPE_11!1")
def test_sockets_in_out(self):
self.do_test_sockets_in_out("NodeSocketFloat")
def test_all_socket_types(self):
self.do_test_socket_type("NodeSocketBool")
self.do_test_invalid_socket_type("NodeSocketCollection")
self.do_test_socket_type("NodeSocketColor")
self.do_test_socket_type("NodeSocketFloat")
self.do_test_invalid_socket_type("NodeSocketGeometry")
self.do_test_invalid_socket_type("NodeSocketImage")
self.do_test_socket_type("NodeSocketInt")
self.do_test_invalid_socket_type("NodeSocketMaterial")
self.do_test_invalid_socket_type("NodeSocketObject")
self.do_test_invalid_socket_type("NodeSocketRotation")
self.do_test_socket_type("NodeSocketShader")
self.do_test_invalid_socket_type("NodeSocketString")
self.do_test_invalid_socket_type("NodeSocketTexture")
self.do_test_socket_type("NodeSocketVector")
self.do_test_invalid_socket_type("NodeSocketVirtual")
def test_items_order_classic(self):
self.do_test_items_order_classic("NodeSocketFloat")
def test_items_order_mixed_with_panels(self):
self.do_test_items_order_mixed_with_panels("NodeSocketFloat")
def test_add(self):
self.do_test_add("NodeSocketFloat")
def test_remove(self):
self.do_test_remove("NodeSocketFloat")
class CompositorNodeGroupInterfaceTest(AbstractNodeGroupInterfaceTest, NodeGroupInterfaceTests):
tree_type = "CompositorNodeTree"
group_node_type = "CompositorNodeGroup"
def setUp(self):
super().setUp()
self.scene = bpy.data.scenes.new("test")
self.main_tree = bpy.data.node_groups.new("test node tree", "CompositorNodeTree")
self.scene.compositing_node_group = self.main_tree
def test_invalid_socket_type(self):
self.do_test_invalid_socket_type("INVALID_SOCKET_TYPE_11!1")
def test_sockets_in_out(self):
self.do_test_sockets_in_out("NodeSocketFloat")
def test_all_socket_types(self):
self.do_test_socket_type("NodeSocketBool")
self.do_test_invalid_socket_type("NodeSocketCollection")
self.do_test_socket_type("NodeSocketColor")
self.do_test_socket_type("NodeSocketFloat")
self.do_test_invalid_socket_type("NodeSocketGeometry")
self.do_test_invalid_socket_type("NodeSocketImage")
self.do_test_socket_type("NodeSocketInt")
self.do_test_invalid_socket_type("NodeSocketMaterial")
self.do_test_invalid_socket_type("NodeSocketObject")
self.do_test_invalid_socket_type("NodeSocketRotation")
self.do_test_invalid_socket_type("NodeSocketShader")
self.do_test_socket_type("NodeSocketString")
self.do_test_invalid_socket_type("NodeSocketTexture")
self.do_test_socket_type("NodeSocketVector")
self.do_test_invalid_socket_type("NodeSocketVirtual")
def test_items_order_classic(self):
self.do_test_items_order_classic("NodeSocketFloat")
def test_items_order_mixed_with_panels(self):
self.do_test_items_order_mixed_with_panels("NodeSocketFloat")
def test_add(self):
self.do_test_add("NodeSocketFloat")
def test_remove(self):
self.do_test_remove("NodeSocketFloat")
class NodeTreeItemsIteratorTest(AbstractNodeGroupInterfaceTest, NodeGroupInterfaceTests):
tree_type = "ShaderNodeTree"
group_node_type = "ShaderNodeGroup"
def setUp(self):
super().setUp()
self.material = bpy.data.materials.new("test")
self.main_tree = self.material.node_tree
# Regression test for changes while iterating over tree interface items (#143551).
# The iterator should remain valid when changing properties of a tree item.
def test_items_iterator(self):
tree, group_node = self.make_group_and_instance()
tree.interface.new_socket("Input 0", socket_type="NodeSocketFloat", in_out='INPUT')
tree.interface.new_socket("Input 1", socket_type="NodeSocketBool", in_out='INPUT')
# The cache vector has a fixed buffer for small sizes, add enough sockets to force reallocation.
for i in range(20):
tree.interface.new_socket(f"Input {2+i}", socket_type="NodeSocketColor", in_out='INPUT')
# Iterate over items and change properties. The loop iterator must remain valid.
for item in tree.interface.items_tree:
if item.socket_type == "NodeSocketFloat":
item.default_value = 500.0
elif item.socket_type == "NodeSocketColor":
item.default_value = (1, 0, 0, 1)
elif item.socket_type == "NodeSocketBool":
item.default_value = True
def main():
global args
import argparse
if '--' in sys.argv:
argv = [sys.argv[0]] + sys.argv[sys.argv.index('--') + 1:]
else:
argv = sys.argv
parser = argparse.ArgumentParser()
parser.add_argument('--testdir', required=True, type=pathlib.Path)
args, remaining = parser.parse_known_args(argv)
unittest.main(argv=remaining)
if __name__ == "__main__":
main()
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