From 4e716714129f8e44de9b7514a4735cf8070fa76c Mon Sep 17 00:00:00 2001
From: Andrej730 <azhilenkov@gmail.com>
Date: Fri, 24 Nov 2023 15:27:16 +0500
Subject: [PATCH] test creating surface style without IFC entities

---
 src/blenderbim/test/tool/test_loader.py | 80 +++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/blenderbim/test/tool/test_loader.py

diff --git a/src/blenderbim/test/tool/test_loader.py b/src/blenderbim/test/tool/test_loader.py
new file mode 100644
index 0000000000..f10e0a3341
--- /dev/null
+++ b/src/blenderbim/test/tool/test_loader.py
@@ -0,0 +1,80 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on 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 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on 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 BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+import ifcopenshell
+import blenderbim.core.tool
+import blenderbim.tool as tool
+from test.bim.bootstrap import NewFile
+from blenderbim.tool.loader import Loader as subject
+import numpy as np
+
+
+class TestImplementsTool(NewFile):
+    def test_run(self):
+        assert isinstance(subject(), blenderbim.core.tool.Loader)
+
+
+class TestCreatingStyles(NewFile):
+    def test_create_surface_style_with_textures(self):
+        # this case occurs when we edit shader properties without saving them to IFC
+        bpy.ops.bim.create_project()
+
+        bpy.ops.mesh.primitive_cube_add(size=10, location=(0, 0, 4))
+        obj = bpy.data.objects["Cube"]
+        bpy.ops.bim.assign_class(ifc_class="IfcActuator", predefined_type="ELECTRICACTUATOR", userdefined_type="")
+        material = bpy.data.materials.new(name="Material")
+        obj.data.materials.append(None)  # new slot
+        obj.material_slots[0].material = material
+        bpy.ops.bim.add_style()
+
+        style_data = {
+            "ReflectanceMethod": "NOTDEFINED",
+            "DiffuseColour": ("IfcColourRgb", (0.5, 0.5, 0.5, 1.0)),
+            "SurfaceColour": (0.3, 0.3, 0.3, 1.0),
+            "Transparency": 0.3,
+            "SpecularHighlight": 0.4,
+            "SpecularColour": 0.03,
+        }
+        texture_data = [
+            {
+                "Mode": "DIFFUSE",
+                "URLReference": "blenderbim/test/files/image.jpg",
+                "type": "IfcImageTexture",
+                "uv_mode": "Generated",
+            },
+        ]
+
+        subject.create_surface_style_rendering(material, style_data)
+        subject.create_surface_style_with_textures(material, style_data, texture_data)
+
+        used_node_types = set([n.type for n in material.node_tree.nodes[:]])
+        assert used_node_types == set((["OUTPUT_MATERIAL", "BSDF_PRINCIPLED", "TEX_IMAGE", "TEX_COORD"]))
+
+        bsdf = tool.Blender.get_material_node(material, "BSDF_PRINCIPLED")
+        alpha = 1 - style_data["Transparency"]
+        diffuse_color = style_data["SurfaceColour"][:3] + (alpha,)
+        assert np.allclose(material.diffuse_color[:], diffuse_color)
+        assert np.allclose(bsdf.inputs["Base Color"].default_value[:], style_data["DiffuseColour"][1])
+        assert np.isclose(bsdf.inputs["Alpha"].default_value, alpha)
+        assert np.isclose(bsdf.inputs["Roughness"].default_value, style_data["SpecularHighlight"])
+        assert np.isclose(bsdf.inputs["Metallic"].default_value, style_data["SpecularColour"])
+
+        image_node = tool.Blender.get_material_node(material, "TEX_IMAGE")
+        assert image_node.outputs["Color"].links[0].to_socket.name == "Base Color"
+        assert image_node.inputs["Vector"].links[0].from_socket.name == "Generated"