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82 lines
2.2 KiB
82 lines
2.2 KiB
1 month ago
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import unittest, struct
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from tinygrad import Tensor, dtypes
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# format types: https://docs.python.org/3/library/struct.html
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class TestTensorBytes(unittest.TestCase):
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def test_bytes(self):
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lst = Tensor(bytes(b"\xaa\xbb\xcc\xdd"))
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assert lst.tolist() == [170, 187, 204, 221]
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def test_float_bytes(self):
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lst = Tensor(bytes(struct.pack("ff", 0.234, 0.8585)), dtype=dtypes.float32)
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assert lst.shape == (2,)
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assert abs(lst.tolist()[0] - 0.234) < 1e-6
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assert abs(lst.tolist()[1] - 0.8585) < 1e-6
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class TestTensorData(unittest.TestCase):
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def test_data(self):
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a = Tensor([1,2,3,4], dtype=dtypes.int32)
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dat = a.data()
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assert dat.itemsize == 4
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assert list(dat) == [1,2,3,4]
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assert dat.shape == (4,)
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assert dat[0] == 1
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assert dat[1] == 2
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def test_data_empty(self):
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a = Tensor([], dtype=dtypes.int32)
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dat = a.data()
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assert dat.itemsize == 4
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assert list(dat) == []
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assert dat.shape == (0,)
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def test_data_empty_multi_dim(self):
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a = Tensor([], dtype=dtypes.int32).reshape(0, 2)
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dat = a.data()
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assert dat.itemsize == 4
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assert list(dat) == []
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assert dat.shape == (0,)
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def test_data_uint8(self):
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a = Tensor([1,2,3,4], dtype=dtypes.uint8)
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dat = a.data()
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assert dat.format == "B"
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assert dat.itemsize == 1
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assert dat[0] == 1
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assert dat[1] == 2
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def test_data_nested(self):
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a = Tensor([[1,2],[3,4]], dtype=dtypes.int32)
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dat = a.data()
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assert dat.format == "i"
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assert dat.itemsize == 4
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assert dat.tolist() == [[1, 2], [3, 4]]
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assert dat.shape == (2,2)
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assert dat[0, 0] == 1
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assert dat[1, 1] == 4
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def test_data_const(self):
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a = Tensor(3, dtype=dtypes.int32)
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dat = a.data()
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assert dat.format == "i"
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assert dat.itemsize == 4
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assert dat.tolist() == 3
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assert dat.shape == ()
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def test_data_float32(self):
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a = Tensor([[1,2.5],[3,4]], dtype=dtypes.float32)
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dat = a.data()
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assert dat.format == "f"
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assert dat[0, 1] == 2.5
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@unittest.skip("requires python 3.12")
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def test_data_float16(self):
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a = Tensor([[1,2.5],[3,4]], dtype=dtypes.float16)
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dat = a.data()
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assert dat.format == "e"
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assert dat.shape == (2,2)
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# NOTE: python can't deref float16
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if __name__ == '__main__':
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unittest.main()
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