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# Copyright © 2019 Arm Ltd. All rights reserved.
# SPDX-License-Identifier: MIT
import pytest
import numpy as np
import pyarmnn as ann
def _get_tensor_info(dt):
tensor_info = ann.TensorInfo(ann.TensorShape((2, 3)), dt)
return tensor_info
@pytest.mark.parametrize("dt, data",
[
(ann.DataType_Float32, np.random.randint(1, size=(2, 4)).astype(np.float32)),
(ann.DataType_Float16, np.random.randint(1, size=(2, 4)).astype(np.float16)),
(ann.DataType_QuantisedAsymm8, np.random.randint(1, size=(2, 4)).astype(np.uint8)),
(ann.DataType_Signed32, np.random.randint(1, size=(2, 4)).astype(np.int32)),
(ann.DataType_QuantisedSymm16, np.random.randint(1, size=(2, 4)).astype(np.int16))
], ids=['float32', 'float16', 'unsigned int8', 'int32', 'int16'])
def test_const_tensor_too_many_elements(dt, data):
tensor_info = _get_tensor_info(dt)
num_bytes = tensor_info.GetNumBytes()
with pytest.raises(ValueError) as err:
ann.ConstTensor(tensor_info, data)
assert 'ConstTensor requires {} bytes, {} provided.'.format(num_bytes, data.nbytes) in str(err.value)
@pytest.mark.parametrize("dt, data",
[
(ann.DataType_Float32, np.random.randint(1, size=(2, 2)).astype(np.float32)),
(ann.DataType_Float16, np.random.randint(1, size=(2, 2)).astype(np.float16)),
(ann.DataType_QuantisedAsymm8, np.random.randint(1, size=(2, 2)).astype(np.uint8)),
(ann.DataType_Signed32, np.random.randint(1, size=(2, 2)).astype(np.int32)),
(ann.DataType_QuantisedSymm16, np.random.randint(1, size=(2, 2)).astype(np.int16))
], ids=['float32', 'float16', 'unsigned int8', 'int32', 'int16'])
def test_const_tensor_too_little_elements(dt, data):
tensor_info = _get_tensor_info(dt)
num_bytes = tensor_info.GetNumBytes()
with pytest.raises(ValueError) as err:
ann.ConstTensor(tensor_info, data)
assert 'ConstTensor requires {} bytes, {} provided.'.format(num_bytes, data.nbytes) in str(err.value)
@pytest.mark.parametrize("dt, data",
[
(ann.DataType_Float32, np.random.randint(1, size=(2, 2, 3, 3)).astype(np.float32)),
(ann.DataType_Float16, np.random.randint(1, size=(2, 2, 3, 3)).astype(np.float16)),
(ann.DataType_QuantisedAsymm8, np.random.randint(1, size=(2, 2, 3, 3)).astype(np.uint8)),
(ann.DataType_Signed32, np.random.randint(1, size=(2, 2, 3, 3)).astype(np.int32)),
(ann.DataType_QuantisedSymm16, np.random.randint(1, size=(2, 2, 3, 3)).astype(np.int16))
], ids=['float32', 'float16', 'unsigned int8', 'int32', 'int16'])
def test_const_tensor_multi_dimensional_input(dt, data):
tensor = ann.ConstTensor(ann.TensorInfo(ann.TensorShape((2, 2, 3, 3)), dt), data)
assert data.size == tensor.GetNumElements()
assert data.nbytes == tensor.GetNumBytes()
assert dt == tensor.GetDataType()
assert tensor.get_memory_area().data
def test_create_const_tensor_from_tensor():
tensor_info = ann.TensorInfo(ann.TensorShape((2, 3)), ann.DataType_Float32)
tensor = ann.Tensor(tensor_info)
copied_tensor = ann.ConstTensor(tensor)
assert copied_tensor != tensor, "Different objects"
assert copied_tensor.GetInfo() != tensor.GetInfo(), "Different objects"
assert copied_tensor.get_memory_area().data == tensor.get_memory_area().data, "Same memory area"
assert copied_tensor.GetNumElements() == tensor.GetNumElements()
assert copied_tensor.GetNumBytes() == tensor.GetNumBytes()
assert copied_tensor.GetDataType() == tensor.GetDataType()
def test_const_tensor_from_tensor_has_memory_area_access_after_deletion_of_original_tensor():
tensor_info = ann.TensorInfo(ann.TensorShape((2, 3)), ann.DataType_Float32)
tensor = ann.Tensor(tensor_info)
tensor.get_memory_area()[0] = 100
copied_mem = tensor.get_memory_area().copy()
assert 100 == copied_mem[0], "Memory was copied correctly"
copied_tensor = ann.ConstTensor(tensor)
tensor.get_memory_area()[0] = 200
assert 200 == tensor.get_memory_area()[0], "Tensor and copied Tensor point to the same memory"
assert 200 == copied_tensor.get_memory_area()[0], "Tensor and copied Tensor point to the same memory"
assert 100 == copied_mem[0], "Copied test memory not affected"
copied_mem[0] = 200 # modify test memory to equal copied Tensor
del tensor
np.testing.assert_array_equal(copied_tensor.get_memory_area(), copied_mem), "After initial tensor was deleted, " \
"copied Tensor still has " \
"its memory as expected"
def test_create_const_tensor_incorrect_args():
with pytest.raises(ValueError) as err:
ann.ConstTensor('something', 'something')
expected_error_message = "Incorrect number of arguments or type of arguments provided to create Const Tensor."
assert expected_error_message in str(err.value)
@pytest.mark.parametrize("dt, data",
[
# -1 not in data type enum
(-1, np.random.randint(1, size=(2, 3)).astype(np.float32)),
], ids=['unknown'])
def test_const_tensor_unsupported_datatype(dt, data):
tensor_info = _get_tensor_info(dt)
with pytest.raises(ValueError) as err:
ann.ConstTensor(tensor_info, data)
assert 'The data type provided for this Tensor is not supported: -1' in str(err.value)
@pytest.mark.parametrize("dt, data",
[
(ann.DataType_Float32, [[1, 1, 1], [1, 1, 1]]),
(ann.DataType_Float16, [[1, 1, 1], [1, 1, 1]]),
(ann.DataType_QuantisedAsymm8, [[1, 1, 1], [1, 1, 1]])
], ids=['float32', 'float16', 'unsigned int8'])
def test_const_tensor_incorrect_input_datatype(dt, data):
tensor_info = _get_tensor_info(dt)
with pytest.raises(TypeError) as err:
ann.ConstTensor(tensor_info, data)
assert 'Data must be provided as a numpy array.' in str(err.value)
@pytest.mark.parametrize("dt, data",
[
(ann.DataType_Float32, np.random.randint(1, size=(2, 3)).astype(np.float32)),
(ann.DataType_Float16, np.random.randint(1, size=(2, 3)).astype(np.float16)),
(ann.DataType_QuantisedAsymm8, np.random.randint(1, size=(2, 3)).astype(np.uint8)),
(ann.DataType_Signed32, np.random.randint(1, size=(2, 3)).astype(np.int32)),
(ann.DataType_QuantisedSymm16, np.random.randint(1, size=(2, 3)).astype(np.int16))
], ids=['float32', 'float16', 'unsigned int8', 'int32', 'int16'])
class TestNumpyDataTypes:
def test_copy_const_tensor(self, dt, data):
tensor_info = _get_tensor_info(dt)
tensor = ann.ConstTensor(tensor_info, data)
copied_tensor = ann.ConstTensor(tensor)
assert copied_tensor != tensor, "Different objects"
assert copied_tensor.GetInfo() != tensor.GetInfo(), "Different objects"
assert copied_tensor.get_memory_area().ctypes.data == tensor.get_memory_area().ctypes.data, "Same memory area"
assert copied_tensor.GetNumElements() == tensor.GetNumElements()
assert copied_tensor.GetNumBytes() == tensor.GetNumBytes()
assert copied_tensor.GetDataType() == tensor.GetDataType()
def test_const_tensor__str__(self, dt, data):
tensor_info = _get_tensor_info(dt)
d_type = tensor_info.GetDataType()
num_dimensions = tensor_info.GetNumDimensions()
num_bytes = tensor_info.GetNumBytes()
num_elements = tensor_info.GetNumElements()
tensor = ann.ConstTensor(tensor_info, data)
assert str(tensor) == "ConstTensor{{DataType: {}, NumBytes: {}, NumDimensions: " \
"{}, NumElements: {}}}".format(d_type, num_bytes, num_dimensions, num_elements)
def test_const_tensor_with_info(self, dt, data):
tensor_info = _get_tensor_info(dt)
elements = tensor_info.GetNumElements()
num_bytes = tensor_info.GetNumBytes()
d_type = dt
tensor = ann.ConstTensor(tensor_info, data)
assert tensor_info != tensor.GetInfo(), "Different objects"
assert elements == tensor.GetNumElements()
assert num_bytes == tensor.GetNumBytes()
assert d_type == tensor.GetDataType()
def test_immutable_memory(self, dt, data):
tensor_info = _get_tensor_info(dt)
tensor = ann.ConstTensor(tensor_info, data)
with pytest.raises(ValueError) as err:
tensor.get_memory_area()[0] = 0
assert 'is read-only' in str(err.value)
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