forked from bartvdbraak/blender
73a9ff0d2d
Support Python's buffer protocol for ID-properties.
205 lines
6.8 KiB
Python
205 lines
6.8 KiB
Python
# Apache License, Version 2.0
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# ./blender.bin --background -noaudio --python tests/python/bl_pyapi_idprop.py -- --verbose
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import bpy
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import unittest
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import numpy as np
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from array import array
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class TestHelper:
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@property
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def id(self):
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return self._id
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def setUp(self):
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self._id = bpy.context.scene
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assert(len(self._id.keys()) == 0)
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def tearDown(self):
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for key in list(self._id.keys()):
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del self._id[key]
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def assertAlmostEqualSeq(self, list1, list2):
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self.assertEqual(len(list1), len(list2))
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for v1, v2 in zip(list1, list2):
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self.assertAlmostEqual(v1, v2, places=5)
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class TestIdPropertyCreation(TestHelper, unittest.TestCase):
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def test_name_empty(self):
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self.id[""] = 4
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self.assertEqual(self.id[""], 4)
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def test_name_too_long(self):
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with self.assertRaises(KeyError):
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self.id["name" * 30] = 4
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def test_int(self):
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self.id["a"] = 2
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self.assertEqual(self.id["a"], 2)
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self.assertTrue(isinstance(self.id["a"], int))
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with self.assertRaises(OverflowError):
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self.id["a"] = 2 ** 31 # integer <= 2 ** 31-1
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def test_double(self):
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self.id["a"] = 2.5
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self.assertEqual(self.id["a"], 2.5)
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self.assertTrue(isinstance(self.id["a"], float))
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def test_unicode(self):
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self.id["a"] = "Hello World"
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self.assertEqual(self.id["a"], "Hello World")
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self.assertTrue(isinstance(self.id["a"], str))
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def test_bytes(self):
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self.id["a"] = b"Hello World"
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self.assertEqual(self.id["a"], b"Hello World")
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self.assertTrue(isinstance(self.id["a"], bytes))
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def test_sequence_double_list(self):
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mylist = [1.2, 3.4, 5.6]
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self.id["a"] = mylist
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self.assertEqual(self.id["a"].to_list(), mylist)
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self.assertEqual(self.id["a"].typecode, "d")
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def test_sequence_int_list(self):
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mylist = [1, 2, 3]
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self.id["a"] = mylist
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self.assertEqual(self.id["a"].to_list(), mylist)
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self.assertEqual(self.id["a"].typecode, "i")
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def test_sequence_float_array(self):
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mylist = [1.2, 3.4, 5.6]
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self.id["a"] = array("f", mylist)
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self.assertAlmostEqualSeq(self.id["a"].to_list(), mylist)
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self.assertEqual(self.id["a"].typecode, "f")
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def test_sequence_double_array(self):
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mylist = [1.2, 3.4, 5.6]
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self.id["a"] = array("d", mylist)
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self.assertAlmostEqualSeq(self.id["a"].to_list(), mylist)
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self.assertEqual(self.id["a"].typecode, "d")
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def test_sequence_int_array(self):
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mylist = [1, 2, 3]
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self.id["a"] = array("i", mylist)
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self.assertAlmostEqualSeq(self.id["a"].to_list(), mylist)
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self.assertEqual(self.id["a"].typecode, "i")
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def test_sequence_other_array(self):
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mylist = [1, 2, 3]
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self.id["a"] = array("Q", mylist)
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self.assertEqual(self.id["a"].to_list(), mylist)
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def test_sequence_mixed_numerical_type(self):
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self.id["a"] = [1, 2, 3.4, 5]
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self.assertAlmostEqualSeq(self.id["a"].to_list(), [1.0, 2.0, 3.4, 5.0])
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self.assertEqual(self.id["a"].typecode, "d")
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def test_sequence_str_list(self):
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# I'm a bit surprised that this works
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mylist = ["abc", "qwe"]
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self.id["a"] = mylist
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self.assertEqual(self.id["a"], mylist)
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def test_sequence_mixed_type(self):
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with self.assertRaises(TypeError):
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mylist = ["abc", 3, "qwe", 3.4]
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self.id["a"] = mylist
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def test_mapping_simple(self):
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mydict = {"1": 10, "2": "20", "3": 30.5}
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self.id["a"] = mydict
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self.assertEqual(self.id["a"]["1"], mydict["1"])
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self.assertEqual(self.id["a"]["2"], mydict["2"])
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self.assertEqual(self.id["a"]["3"], mydict["3"])
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def test_mapping_complex(self):
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mydict = {
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"1": [1, 2, 3],
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"2": {"1": "abc", "2": array("i", [4, 5, 6])},
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"3": {"1": {"1": 10}, "2": b"qwe"},
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}
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self.id["a"] = mydict
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self.assertEqual(self.id["a"]["1"].to_list(), [1, 2, 3])
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self.assertEqual(self.id["a"]["2"]["1"], "abc")
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self.assertEqual(self.id["a"]["2"]["2"].to_list(), [4, 5, 6])
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self.assertEqual(self.id["a"]["3"]["1"]["1"], 10)
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self.assertEqual(self.id["a"]["3"]["2"], b"qwe")
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with self.assertRaises(KeyError):
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a = self.id["a"]["2"]["a"]
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def test_invalid_type(self):
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with self.assertRaises(TypeError):
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self.id["a"] = self
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class TestBufferProtocol(TestHelper, unittest.TestCase):
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def test_int(self):
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self.id["a"] = array("i", [1, 2, 3, 4, 5])
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a = np.frombuffer(self.id["a"], self.id["a"].typecode)
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self.assertEqual(len(a), 5)
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a[2] = 10
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self.assertEqual(self.id["a"].to_list(), [1, 2, 10, 4, 5])
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def test_float(self):
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self.id["a"] = array("f", [1.0, 2.0, 3.0, 4.0])
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a = np.frombuffer(self.id["a"], self.id["a"].typecode)
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self.assertEqual(len(a), 4)
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a[-1] = 10
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self.assertEqual(self.id["a"].to_list(), [1.0, 2.0, 3.0, 10.0])
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def test_double(self):
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self.id["a"] = array("d", [1.0, 2.0, 3.0, 4.0])
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a = np.frombuffer(self.id["a"], self.id["a"].typecode)
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a[1] = 10
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self.assertEqual(self.id["a"].to_list(), [1.0, 10.0, 3.0, 4.0])
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def test_full_update(self):
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self.id["a"] = array("i", [1, 2, 3, 4, 5, 6])
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a = np.frombuffer(self.id["a"], self.id["a"].typecode)
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a[:] = [10, 20, 30, 40, 50, 60]
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self.assertEqual(self.id["a"].to_list(), [10, 20, 30, 40, 50, 60])
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def test_partial_update(self):
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self.id["a"] = array("i", [1, 2, 3, 4, 5, 6, 7, 8])
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a = np.frombuffer(self.id["a"], self.id["a"].typecode)
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a[1:5] = [10, 20, 30, 40]
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self.assertEqual(self.id["a"].to_list(), [1, 10, 20, 30, 40, 6, 7, 8])
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def test_copy(self):
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self.id["a"] = array("i", [1, 2, 3, 4, 5])
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self.id["b"] = self.id["a"]
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self.assertEqual(self.id["a"].to_list(), self.id["b"].to_list())
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def test_memview_attributes(self):
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mylist = [1, 2, 3]
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self.id["a"] = mylist
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view1 = memoryview(self.id["a"])
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view2 = memoryview(array("i", mylist))
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self.assertEqualMemviews(view1, view2)
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def assertEqualMemviews(self, view1, view2):
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props_to_compare = (
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"contiguous", "format", "itemsize", "nbytes", "ndim",
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"readonly", "shape", "strides", "suboffsets"
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)
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for attr in props_to_compare:
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self.assertEqual(getattr(view1, attr), getattr(view2, attr))
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self.assertEqual(list(view1), list(view2))
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self.assertEqual(view1.tobytes(), view2.tobytes())
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if __name__ == '__main__':
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import sys
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sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
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unittest.main()
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