66 lines
2.8 KiB
Python
66 lines
2.8 KiB
Python
import os
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import sys
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import unittest
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import torch
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import numpy as np
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PROJECT_ROOT = os.path.realpath(os.path.join(os.path.dirname(__file__), "..", ".."))
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MODULE_ROOT = os.path.join(PROJECT_ROOT, "modules")
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sys.path.append(MODULE_ROOT)
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from pytorch_wrapper.pt_from_numpy import PtFromNumpy
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class TestPtFromNumpy(unittest.TestCase):
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def setUp(self):
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"""Set up test data."""
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self.node = PtFromNumpy()
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# Test cases covering rank 0 (scalar) to rank 3 tensors
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self.test_cases = [
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# Rank 0 (scalar) int32
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(np.array(12345, dtype=np.int32), torch.tensor(12345, dtype=torch.int32)),
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# Rank 0 (scalar) float32
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(np.array(12345.6, dtype=np.float32), torch.tensor(12345.6, dtype=torch.float32)),
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# Rank 1 (1D array) int32
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(np.array([1, 2, 3], dtype=np.int32), torch.tensor([1, 2, 3], dtype=torch.int32)),
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# Rank 1 (1D array) float32
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(np.array([1.1, 2.2, 3.3], dtype=np.float32), torch.tensor([1.1, 2.2, 3.3], dtype=torch.float32)),
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# Rank 2 (2D matrix) int32
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(np.array([[1, 2, 3], [4, 5, 6]], dtype=np.int32), torch.tensor([[1, 2, 3], [4, 5, 6]], dtype=torch.int32)),
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# Rank 2 (2D matrix) float32
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(np.array([[1.1, 2.2], [3.3, 4.4]], dtype=np.float32), torch.tensor([[1.1, 2.2], [3.3, 4.4]], dtype=torch.float32)),
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# Rank 3 (3D tensor) int32
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(np.array([[[1, 2], [3, 4]], [[5, 6], [7, 8]]], dtype=np.int32),
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torch.tensor([[[1, 2], [3, 4]], [[5, 6], [7, 8]]], dtype=torch.int32)),
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# Rank 3 (3D tensor) float32
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(np.array([[[1.1, 2.2], [3.3, 4.4]], [[5.5, 6.6], [7.7, 8.8]]], dtype=np.float32),
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torch.tensor([[[1.1, 2.2], [3.3, 4.4]], [[5.5, 6.6], [7.7, 8.8]]], dtype=torch.float32)),
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]
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def test_convert_numpy_to_tensor(self):
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"""Test conversion of NumPy ndarray to PyTorch tensor."""
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for np_array, expected_tensor in self.test_cases:
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with self.subTest(data=np_array):
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retval = self.node.f(np_array)[0]
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# Ensure the returned value is a PyTorch tensor
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self.assertTrue(isinstance(retval, torch.Tensor), f"Expected tensor, got {type(retval)}")
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# Ensure the dtype matches
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self.assertEqual(retval.dtype, expected_tensor.dtype, f"Dtype mismatch for input: {np_array}")
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# Ensure the shape matches
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self.assertEqual(retval.shape, expected_tensor.shape,
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f"Shape mismatch for input: {np_array} (Expected {expected_tensor.shape}, got {retval.shape})")
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# Ensure values match
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torch.testing.assert_close(retval, expected_tensor,
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msg=f"Value mismatch for input: {np_array}")
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if __name__ == "__main__":
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unittest.main()
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