93 lines
3.0 KiB
Python
93 lines
3.0 KiB
Python
from shutil import copyfile
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import os
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from blender_asset_tracer import blendfile
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from tests.abstract_test import AbstractBlendFileTest
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class ModifyUncompressedTest(AbstractBlendFileTest):
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def setUp(self):
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self.orig = self.blendfiles / "linked_cube.blend"
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self.to_modify = self.orig.with_name("linked_cube_modified.blend")
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copyfile(
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str(self.orig), str(self.to_modify)
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) # TODO: when requiring Python 3.6+, remove str()
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self.bf = blendfile.BlendFile(self.to_modify, mode="r+b")
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self.assertFalse(self.bf.is_compressed)
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def tearDown(self):
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super().tearDown()
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if self.to_modify.exists():
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self.to_modify.unlink()
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def test_change_path(self):
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library = self.bf.code_index[b"LI"][0]
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# Change it from absolute to relative.
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library[b"filepath"] = b"//basic_file.blend"
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library[b"name"] = b"//basic_file.blend"
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self.reload()
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library = self.bf.code_index[b"LI"][0]
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self.assertEqual(b"//basic_file.blend", library[b"filepath"])
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self.assertEqual(b"//basic_file.blend", library[b"name"])
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def test_block_hash(self):
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scene = self.bf.code_index[b"SC"][0]
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assert isinstance(scene, blendfile.BlendFileBlock)
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pre_hash = scene.hash()
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self.assertIsInstance(pre_hash, int)
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# Change the 'ed' pointer to some arbitrary value by hacking the blend file.
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psize = self.bf.header.pointer_size
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field, field_offset = scene.dna_type.field_from_path(psize, b"ed")
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self.bf.fileobj.seek(scene.file_offset + field_offset, os.SEEK_SET)
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self.bf.fileobj.write(b"12345678"[:psize])
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self.reload()
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scene = self.bf.code_index[b"SC"][0]
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post_hash = scene.hash()
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self.assertEqual(pre_hash, post_hash)
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def reload(self):
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self.bf.close()
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self.bf = blendfile.BlendFile(self.to_modify, mode="r+b")
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class ModifyCompressedTest(AbstractBlendFileTest):
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def setUp(self):
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self.orig = self.blendfiles / "linked_cube_compressed.blend"
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self.to_modify = self.orig.with_name("linked_cube_modified.blend")
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copyfile(
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str(self.orig), str(self.to_modify)
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) # TODO: when requiring Python 3.6+, remove str()
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self.bf = blendfile.BlendFile(self.to_modify, mode="r+b")
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self.assertTrue(self.bf.is_compressed)
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def tearDown(self):
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if self.to_modify.exists():
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self.to_modify.unlink()
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def test_change_path(self):
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library = self.bf.code_index[b"LI"][0]
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# Change it from absolute to relative.
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library[b"filepath"] = b"//basic_file.blend"
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library[b"name"] = b"//basic_file.blend"
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# Reload the blend file to inspect that it was written properly.
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self.bf.close()
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self.bf = blendfile.BlendFile(self.to_modify, mode="r+b")
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library = self.bf.code_index[b"LI"][0]
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self.assertEqual(b"//basic_file.blend", library[b"filepath"])
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self.assertEqual(b"//basic_file.blend", library[b"name"])
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