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paddlepaddle--paddle/test/legacy_test/test_randn_op.py
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2026-07-13 12:40:42 +08:00

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# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
import numpy as np
from op_test import get_device_place, is_custom_device
from utils import dygraph_guard
import paddle
from paddle.static import Program, program_guard
class TestRandnOp(unittest.TestCase):
def test_api(self):
shape = [1000, 784]
train_program = Program()
startup_program = Program()
with program_guard(train_program, startup_program):
x1 = paddle.randn(shape, 'float32')
x2 = paddle.randn(shape, 'float64')
dim_1 = paddle.tensor.fill_constant([1], "int64", 20)
dim_2 = paddle.tensor.fill_constant([1], "int32", 50)
x3 = paddle.randn([dim_1, dim_2, 784])
var_shape = paddle.static.data('X', [2], 'int32')
x4 = paddle.randn(var_shape)
place = get_device_place()
exe = paddle.static.Executor(place)
res = exe.run(
train_program,
feed={'X': np.array(shape, dtype='int32')},
fetch_list=[x1, x2, x3, x4],
)
for out in res:
self.assertAlmostEqual(np.mean(out), 0.0, delta=0.1)
self.assertAlmostEqual(np.std(out), 1.0, delta=0.1)
class TestRandnOpForDygraph(unittest.TestCase):
def test_api(self):
shape = [1000, 784]
place = get_device_place()
paddle.disable_static(place)
x1 = paddle.randn(shape, 'float32')
x2 = paddle.randn(shape, 'float64')
dim_1 = paddle.tensor.fill_constant([1], "int64", 20)
dim_2 = paddle.tensor.fill_constant([1], "int32", 50)
x3 = paddle.randn(shape=[dim_1, dim_2, 784])
var_shape = paddle.to_tensor(np.array(shape))
x4 = paddle.randn(var_shape)
for out in [x1, x2, x3, x4]:
self.assertAlmostEqual(np.mean(out.numpy()), 0.0, delta=0.1)
self.assertAlmostEqual(np.std(out.numpy()), 1.0, delta=0.1)
paddle.enable_static()
class TestRandnOpError(unittest.TestCase):
def test_error(self):
with program_guard(Program(), Program()):
# The argument dtype of randn_op should be float32 or float64.
self.assertRaises(TypeError, paddle.randn, [1, 2], 'int32')
class TestRandnOpCompatibility(unittest.TestCase):
def setUp(self):
self.places = [paddle.CPUPlace()]
if paddle.base.core.is_compiled_with_cuda() or is_custom_device():
self.places.append(get_device_place())
self.expected_shape = [2, 3]
self.dtype = paddle.float32
def test_gather_with_param_aliases(self):
with dygraph_guard():
for place in self.places:
paddle.device.set_device(place)
for param_name in ['shape', 'size']:
tensor = paddle.randn(
**{param_name: self.expected_shape}, dtype=self.dtype
)
self.assertEqual(tensor.shape, self.expected_shape)
self.assertEqual(tensor.dtype, self.dtype)
shape_tensor = paddle.to_tensor(
self.expected_shape, dtype='int32'
)
tensor = paddle.randn(
**{param_name: shape_tensor}, dtype=self.dtype
)
self.assertEqual(tensor.shape, self.expected_shape)
self.assertEqual(tensor.dtype, self.dtype)
tensor = paddle.randn(*self.expected_shape, dtype=self.dtype)
self.assertEqual(tensor.shape, self.expected_shape)
self.assertEqual(tensor.dtype, self.dtype)
if __name__ == "__main__":
paddle.enable_static()
unittest.main()