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gig-line/Tools/tests/test_fbx_export_preset.py
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zwitschi ba68dcfdbc feat(hero): v0.1.2 — scale calibration, façade detail, export preset refactor (#28)
Merged PR #28: v0.1.2 — scale calibration, façade detail, export preset

Co-authored-by: Zwitschi <zwitschi82@gmail.com>
2026-11-08 18:48:33 +01:00

71 lines
2.7 KiB
Python

"""Tests for Tools/fbx_export_preset.py.
The preset module keeps its argument set in plain dicts and builds it in
`preset_kwargs()`, so the export contract can be checked without starting
Blender. Only `export_static`/`export_character` import `bpy`.
"""
import os
import sys
import unittest
ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), "..", ".."))
sys.path.insert(0, os.path.join(ROOT, "Tools"))
import fbx_export_preset as preset # noqa: E402
class MetricPresetTest(unittest.TestCase):
def test_scale_and_axis_contract(self):
# These three are the project's recorded conversion contract: metres ->
# centimetres by a factor of exactly 100, east +X, north -Y, up +Z.
kwargs = preset.preset_kwargs()
self.assertTrue(kwargs["apply_unit_scale"])
self.assertEqual(kwargs["apply_scale_options"], "FBX_SCALE_NONE")
self.assertEqual(kwargs["axis_forward"], "-Y")
self.assertEqual(kwargs["axis_up"], "Z")
def test_smoothing_groups_are_exported(self):
# "OFF" (the pre-refactor value) drops smoothing groups and every Unreal
# import warns about it, with round parts faceted.
self.assertEqual(preset.preset_kwargs()["mesh_smooth_type"], "FACE")
def test_selection_flag(self):
self.assertFalse(preset.preset_kwargs()["use_selection"])
self.assertTrue(preset.preset_kwargs(selection=True)["use_selection"])
def test_object_types_are_meshes_only(self):
self.assertEqual(preset.preset_kwargs()["object_types"], {"MESH"})
class CharacterPresetTest(unittest.TestCase):
def test_character_exports_armature_and_mesh(self):
kwargs = preset.preset_kwargs("ue_character_v1")
self.assertEqual(kwargs["object_types"], {"ARMATURE", "MESH"})
self.assertFalse(kwargs["add_leaf_bones"])
self.assertEqual(kwargs["path_mode"], "COPY")
self.assertFalse(kwargs["embed_textures"])
def test_character_keeps_the_scale_contract(self):
kwargs = preset.preset_kwargs("ue_character_v1")
self.assertEqual(kwargs["apply_scale_options"], "FBX_SCALE_NONE")
self.assertEqual(kwargs["mesh_smooth_type"], "FACE")
class OverrideTest(unittest.TestCase):
def test_overrides_win(self):
kwargs = preset.preset_kwargs(mesh_smooth_type="OFF")
self.assertEqual(kwargs["mesh_smooth_type"], "OFF")
def test_unknown_preset_raises(self):
with self.assertRaises(KeyError):
preset.preset_kwargs("ue_imperial_v9")
def test_filepath_must_not_be_an_override(self):
with self.assertRaises(ValueError):
preset.preset_kwargs(filepath="/tmp/x.fbx")
if __name__ == "__main__":
unittest.main()