diff --git a/tests/st/ops/gpu/test_argmax_op.py b/tests/st/ops/gpu/test_argmax_op.py
index 96f94c54f3..7b90bc4eaa 100644
--- a/tests/st/ops/gpu/test_argmax_op.py
+++ b/tests/st/ops/gpu/test_argmax_op.py
@@ -48,15 +48,15 @@ def test_argmax():
     expect2 = np.array([1, 0, 0, 0]).astype(np.int32)
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
-    Argmax = NetArgmax()
-    output = Argmax(x)
+    argmax = NetArgmax()
+    output = argmax(x)
     assert (output[0].asnumpy() == expect1).all()
     assert (output[1].asnumpy() == expect2).all()
     assert (output[2].asnumpy() == expect2).all()
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
-    Argmax1 = NetArgmax()
-    output1 = Argmax(x)
+    argmax1 = NetArgmax()
+    output1 = argmax1(x)
     assert (output1[0].asnumpy() == expect1).all()
     assert (output1[1].asnumpy() == expect2).all()
     assert (output1[2].asnumpy() == expect2).all()
diff --git a/tests/st/ops/gpu/test_assign_op.py b/tests/st/ops/gpu/test_assign_op.py
index 74c2ebafbf..5beccde8fd 100644
--- a/tests/st/ops/gpu/test_assign_op.py
+++ b/tests/st/ops/gpu/test_assign_op.py
@@ -23,13 +23,13 @@ from mindspore.ops import operations as P
 
 
 class Net(nn.Cell):
-    def __init__(self, value):
+    def __init__(self, param):
         super(Net, self).__init__()
-        self.var = Parameter(value, name="var")
+        self.var = Parameter(param, name="var")
         self.assign = P.Assign()
 
-    def construct(self, value):
-        return self.assign(self.var, value)
+    def construct(self, param):
+        return self.assign(self.var, param)
 
 
 x = np.array([[1.2, 1], [1, 0]]).astype(np.float32)
diff --git a/tests/st/ops/gpu/test_batch_matmul.py b/tests/st/ops/gpu/test_batch_matmul.py
index ee7ab24995..361280dd9b 100644
--- a/tests/st/ops/gpu/test_batch_matmul.py
+++ b/tests/st/ops/gpu/test_batch_matmul.py
@@ -20,9 +20,6 @@ import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.common import dtype as mstype
-from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
 from mindspore.ops import operations as P
 
 
@@ -38,7 +35,7 @@ class BatchMatMulNet(nn.Cell):
         return self.batch_matmul(x, y)
 
 
-def test_4D():
+def test_4d():
     input_x = Tensor(np.arange(2 * 4 * 1 * 3).reshape(2, 4, 1, 3), mstype.float32)
     input_y = Tensor(np.arange(2 * 4 * 3 * 4).reshape(2, 4, 3, 4), mstype.float32)
 
@@ -60,7 +57,7 @@ def test_4D():
 @pytest.mark.level0
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
-def test_4D_transpose_a():
+def test_4d_transpose_a():
     input_x = Tensor(np.arange(2 * 4 * 3 * 1).reshape(2, 4, 3, 1), mstype.float32)
     input_y = Tensor(np.arange(2 * 4 * 3 * 4).reshape(2, 4, 3, 4), mstype.float32)
 
@@ -82,7 +79,7 @@ def test_4D_transpose_a():
 @pytest.mark.level0
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
-def test_4D_transpose_b():
+def test_4d_transpose_b():
     input_x = Tensor(np.arange(2 * 4 * 1 * 3).reshape(2, 4, 1, 3), mstype.float32)
     input_y = Tensor(np.arange(2 * 4 * 4 * 3).reshape(2, 4, 4, 3), mstype.float32)
 
@@ -104,7 +101,7 @@ def test_4D_transpose_b():
 @pytest.mark.level0
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
-def test_4D_transpose_ab():
+def test_4d_transpose_ab():
     input_x = Tensor(np.arange(2 * 4 * 3 * 1).reshape(2, 4, 3, 1), mstype.float32)
     input_y = Tensor(np.arange(2 * 4 * 4 * 3).reshape(2, 4, 4, 3), mstype.float32)
 
@@ -122,17 +119,7 @@ def test_4D_transpose_ab():
                [[5612, 5810, 6008, 6206]]]]
     assert (output.asnumpy() == expect).all()
 
-
-class BatchMatMulNet(nn.Cell):
-    def __init__(self, transpose_a=False, transpose_b=False):
-        super(BatchMatMulNet, self).__init__()
-        self.batch_matmul = P.BatchMatMul(transpose_a, transpose_b)
-
-    def construct(self, x, y):
-        return self.batch_matmul(x, y)
-
-
-def test_4D_fp16():
+def test_4d_fp16():
     input_x = Tensor(np.arange(2 * 4 * 1 * 3).reshape(2, 4, 1, 3), mstype.float16)
     input_y = Tensor(np.arange(2 * 4 * 3 * 4).reshape(2, 4, 3, 4), mstype.float16)
 
diff --git a/tests/st/ops/gpu/test_batchnorm_fold2_op.py b/tests/st/ops/gpu/test_batchnorm_fold2_op.py
index eaaf10ef07..47b11b7b7a 100644
--- a/tests/st/ops/gpu/test_batchnorm_fold2_op.py
+++ b/tests/st/ops/gpu/test_batchnorm_fold2_op.py
@@ -68,10 +68,10 @@ def test_batchnrom_fold2():
     current_step = np.array([0]).astype('int32')
     output = net(Tensor(x), Tensor(beta), Tensor(gamma), Tensor(batch_std), Tensor(batch_mean),
                  Tensor(running_std), Tensor(running_mean), Tensor(current_step))
-    expect = (x + beta.reshape(-1, 1, 1) - (gamma * running_mean / running_std).reshape(-1, 1,
-                                                                                        1) if current_step >= freeze_bn else
-              x * (running_std / batch_std).reshape(-1, 1, 1) + (beta - gamma * batch_mean / batch_std).reshape(-1, 1,
-                                                                                                                1))
+    expect = ((x + beta.reshape(-1, 1, 1) - 
+               (gamma * running_mean / running_std).reshape(-1, 1, 1) if current_step >= freeze_bn else
+               x * (running_std / batch_std).reshape(-1, 1, 1) + 
+               (beta - gamma * batch_mean / batch_std).reshape(-1, 1, 1)))
     error = np.ones(shape=expect.shape) * 1.0e-6
     diff = output.asnumpy() - expect
     assert np.all(diff < error)
@@ -80,10 +80,9 @@ def test_batchnrom_fold2():
     current_step = np.array([100000]).astype('int32')
     output = net(Tensor(x), Tensor(beta), Tensor(gamma), Tensor(batch_std), Tensor(batch_mean), Tensor(running_std),
                  Tensor(running_mean), Tensor(current_step))
-    expect = (x + beta.reshape(-1, 1, 1) - (gamma * running_mean / running_std).reshape(-1, 1,
-                                                                                        1) if current_step >= freeze_bn else
-              x * (batch_std / running_std).reshape(-1, 1, 1) + (beta - gamma * batch_mean / batch_std).reshape(-1, 1,
-                                                                                                                1))
+    expect = ((x + beta.reshape(-1, 1, 1) - (gamma * running_mean / running_std).reshape(-1, 1, 1) 
+               if current_step >= freeze_bn else x * (batch_std / running_std).reshape(-1, 1, 1) + 
+               (beta - gamma * batch_mean / batch_std).reshape(-1, 1, 1)))
     error = np.ones(shape=expect.shape) * 1.0e-6
     diff = output.asnumpy() - expect
     assert np.all(diff < error)
diff --git a/tests/st/ops/gpu/test_batchnorm_fold_grad_op.py b/tests/st/ops/gpu/test_batchnorm_fold_grad_op.py
index 8bf623371d..5d20a95ac0 100644
--- a/tests/st/ops/gpu/test_batchnorm_fold_grad_op.py
+++ b/tests/st/ops/gpu/test_batchnorm_fold_grad_op.py
@@ -38,8 +38,8 @@ class Net(nn.Cell):
 
 def np_result(d_batch_mean, d_batch_std, x, batch_mean, batch_std):
     n = x.shape[0] * x.shape[2] * x.shape[3]
-    dx = d_batch_mean.reshape(1, -1, 1, 1) / n + d_batch_std.reshape(1, -1, 1, 1) * (
-            x - batch_mean.reshape(1, -1, 1, 1)) / batch_std.reshape(1, -1, 1, 1) / n
+    dx = (d_batch_mean.reshape(1, -1, 1, 1) / n + d_batch_std.reshape(1, -1, 1, 1) *
+          (x - batch_mean.reshape(1, -1, 1, 1)) / batch_std.reshape(1, -1, 1, 1) / n)
     return dx
 
 
diff --git a/tests/st/ops/gpu/test_batchnorm_fold_op.py b/tests/st/ops/gpu/test_batchnorm_fold_op.py
index f7e1a2deb8..0572a3b901 100644
--- a/tests/st/ops/gpu/test_batchnorm_fold_op.py
+++ b/tests/st/ops/gpu/test_batchnorm_fold_op.py
@@ -86,7 +86,7 @@ def test_batchnorm_fold2():
     ms_var = Tensor(variance)
     batch_mean, batch_var, delay_mean, delay_std = net(Tensor(x), ms_mean, ms_var,
                                                        Tensor(current_step))
-    expect1, expect2, expect3, expect4, expect5, expect6 = np_result(x, mean, variance, 0.9, 1e-12)
+    expect1, expect2, expect3, _, expect5, expect6 = np_result(x, mean, variance, 0.9, 1e-12)
     assert np.allclose(batch_mean.asnumpy(), expect1, rtol=1.e-7, atol=1.e-5)
     assert np.allclose(batch_var.asnumpy(), expect2, rtol=1.e-7, atol=1.e-5)
     assert np.allclose(ms_mean.asnumpy(), expect3, rtol=1.e-7, atol=1.e-5)
@@ -108,7 +108,7 @@ def test_batchnorm_fold_freeze():
     ms_var = Tensor(variance)
     batch_mean, batch_var, delay_mean, delay_std = net(Tensor(x), ms_mean, ms_var,
                                                        Tensor(current_step))
-    expect1, expect2, expect3, expect4, expect5, expect6 = np_result(x, mean, variance, 0.9, 1e-12)
+    _, _, _, _, expect5, expect6 = np_result(x, mean, variance, 0.9, 1e-12)
     assert np.allclose(batch_mean.asnumpy(), np.zeros_like(mean), rtol=1.e-7, atol=1.e-5)
     assert np.allclose(batch_var.asnumpy(), np.ones_like(mean), rtol=1.e-7, atol=1.e-5)
     assert np.allclose(ms_mean.asnumpy(), mean, rtol=1.e-7, atol=1.e-5)
diff --git a/tests/st/ops/gpu/test_batchnorm_op.py b/tests/st/ops/gpu/test_batchnorm_op.py
index 28689bfe0e..0aeac6dfcc 100644
--- a/tests/st/ops/gpu/test_batchnorm_op.py
+++ b/tests/st/ops/gpu/test_batchnorm_op.py
@@ -61,9 +61,6 @@ def test_train_forward():
                                 [-0.0281, 0.9119, 1.3819, 1.8518],
                                 [2.7918, 0.4419, -0.4981, 0.9119],
                                 [1.8518, 0.9119, 2.3218, -0.9680]]]]).astype(np.float32)
-    grad = np.array([[
-        [[1, 2, 7, 1], [4, 2, 1, 3], [1, 6, 5, 2], [2, 4, 3, 2]],
-        [[9, 4, 3, 5], [1, 3, 7, 6], [5, 7, 9, 9], [1, 4, 6, 8]]]]).astype(np.float32)
 
     weight = np.ones(2).astype(np.float32)
     bias = np.ones(2).astype(np.float32)
diff --git a/tests/st/ops/gpu/test_broadcast_op.py b/tests/st/ops/gpu/test_broadcast_op.py
index e102d17ff3..3f97a229e8 100644
--- a/tests/st/ops/gpu/test_broadcast_op.py
+++ b/tests/st/ops/gpu/test_broadcast_op.py
@@ -16,10 +16,8 @@
 import numpy as np
 import pytest
 
-import mindspore.common.dtype as mstype
 import mindspore.context as context
 from mindspore.common.tensor import Tensor
-from mindspore.nn import Cell
 from mindspore.ops import operations as P
 
 
diff --git a/tests/st/ops/gpu/test_cast_op.py b/tests/st/ops/gpu/test_cast_op.py
index e7a0563b15..4e1d32d9da 100644
--- a/tests/st/ops/gpu/test_cast_op.py
+++ b/tests/st/ops/gpu/test_cast_op.py
@@ -47,9 +47,9 @@ def test_cast():
     net = Net()
     output = net(x0, t0, x1, t1)
     type0 = output[0].asnumpy().dtype
-    assert (type0 == 'float16')
+    assert type0 == 'float16'
     type1 = output[1].asnumpy().dtype
-    assert (type1 == 'float32')
+    assert type1 == 'float32'
 
 
 @pytest.mark.level0
@@ -65,6 +65,6 @@ def test_cast1():
     net = Net()
     output = net(x0, t0, x1, t1)
     type0 = output[0].asnumpy().dtype
-    assert (type0 == 'float32')
+    assert type0 == 'float32'
     type1 = output[1].asnumpy().dtype
-    assert (type1 == 'float32')
+    assert type1 == 'float32'
diff --git a/tests/st/ops/gpu/test_conv2d_backprop_filter_op.py b/tests/st/ops/gpu/test_conv2d_backprop_filter_op.py
index a545bd841a..3d95c47a97 100644
--- a/tests/st/ops/gpu/test_conv2d_backprop_filter_op.py
+++ b/tests/st/ops/gpu/test_conv2d_backprop_filter_op.py
@@ -66,13 +66,6 @@ def test_conv2d_backprop_filter():
         [-3, -2, -3, -16]]]]).astype(np.float32))
     conv2d_filter = Conv2dFilter()
     output = conv2d_filter(out, x, w)
-    print("================================")
-    """
-    expect output:
-    [[[[ -60, -142, -265]
-       [-104, -211, -322]
-       [-102, -144, -248]]]]
-    """
     expect = np.array([[[[-60, -142, -265],
                          [-104, -211, -322],
                          [-102, -144, -248]]]]).astype(np.float32)
diff --git a/tests/st/ops/gpu/test_conv2d_backprop_input_op.py b/tests/st/ops/gpu/test_conv2d_backprop_input_op.py
index bbe672a079..1b66fb4795 100644
--- a/tests/st/ops/gpu/test_conv2d_backprop_input_op.py
+++ b/tests/st/ops/gpu/test_conv2d_backprop_input_op.py
@@ -20,8 +20,6 @@ import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
 from mindspore.ops import operations as P
 
 context.set_context(device_target='GPU')
diff --git a/tests/st/ops/gpu/test_conv2d_op.py b/tests/st/ops/gpu/test_conv2d_op.py
index 850c8968a2..a42114a106 100644
--- a/tests/st/ops/gpu/test_conv2d_op.py
+++ b/tests/st/ops/gpu/test_conv2d_op.py
@@ -57,16 +57,6 @@ def test_conv2d():
     conv2d = NetConv2d()
     output = conv2d(x, w)
     assert (output.asnumpy() == expect).all()
-    """
-    expect output:
-    [[[[ 45.  48.  51.]
-       [ 54.  57.  60.]
-       [ 63.  66.  69.]]
-
-      [[126. 138. 150.]
-       [162. 174. 186.]
-       [198. 210. 222.]]]]
-    """
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     conv2d = NetConv2d()
     output = conv2d(x, w)
diff --git a/tests/st/ops/gpu/test_correction_mul_grad_op.py b/tests/st/ops/gpu/test_correction_mul_grad_op.py
index 531e51ed2e..0bb825a3b4 100644
--- a/tests/st/ops/gpu/test_correction_mul_grad_op.py
+++ b/tests/st/ops/gpu/test_correction_mul_grad_op.py
@@ -14,7 +14,6 @@
 # ============================================================================
 
 import numpy as np
-import os
 import pytest
 
 import mindspore.context as context
@@ -51,5 +50,5 @@ def test_correction_mul_grad():
     expect = [0, 0]
     expect[0] = (dout * np.reshape(batch_std / running_std, (co, 1, 1, 1)))
     expect[1] = (np.sum(dout * x, (1, 2, 3)) / running_std)
-    for i, v in enumerate(output):
-        assert (np.allclose(output[i].asnumpy(), expect[i], rtol=1.e-5, atol=1.e-5))
+    for i, _ in enumerate(output):
+        assert np.allclose(output[i].asnumpy(), expect[i], rtol=1.e-5, atol=1.e-5)
diff --git a/tests/st/ops/gpu/test_correction_mul_op.py b/tests/st/ops/gpu/test_correction_mul_op.py
index 9a5ab6728b..f505c62650 100644
--- a/tests/st/ops/gpu/test_correction_mul_op.py
+++ b/tests/st/ops/gpu/test_correction_mul_op.py
@@ -50,4 +50,4 @@ def test_correction_mul():
     diff = output.asnumpy() - expect
     assert np.all(diff < error)
     assert np.all(diff > error * -1)
-    assert (output.shape() == expect.shape)
+    assert output.shape() == expect.shape
diff --git a/tests/st/ops/gpu/test_dense_op.py b/tests/st/ops/gpu/test_dense_op.py
index 700f41ea32..125b273a82 100644
--- a/tests/st/ops/gpu/test_dense_op.py
+++ b/tests/st/ops/gpu/test_dense_op.py
@@ -68,8 +68,8 @@ class GradData(nn.Cell):
         self.grad = GradOperation(name="get_all", get_all=True, sens_param=True)
         self.network = network
 
-    def construct(self, input, output_grad):
-        return self.grad(self.network)(input, output_grad)
+    def construct(self, inputs, output_grad):
+        return self.grad(self.network)(inputs, output_grad)
 
 
 class GradWeight(nn.Cell):
@@ -172,8 +172,8 @@ class Grad(nn.Cell):
         self.grad = GradOperation(name="get_all", get_all=True, sens_param=True)
         self.network = network
 
-    def construct(self, input, bias, dy):
-        return self.grad(self.network)(input, bias, dy)
+    def construct(self, inputs, bias, dy):
+        return self.grad(self.network)(inputs, bias, dy)
 
 
 @pytest.mark.level0
diff --git a/tests/st/ops/gpu/test_equal_op.py b/tests/st/ops/gpu/test_equal_op.py
index 62dfeee1eb..ad627c666d 100644
--- a/tests/st/ops/gpu/test_equal_op.py
+++ b/tests/st/ops/gpu/test_equal_op.py
@@ -50,16 +50,16 @@ def test_equal():
     equal = NetEqual()
     output0 = equal(x0, y0)
     assert np.all(output0.asnumpy() == expect0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = equal(x1, y1)
     assert np.all(output1.asnumpy() == expect1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     equal = NetEqual()
     output0 = equal(x0, y0)
     assert np.all(output0.asnumpy() == expect0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = equal(x1, y1)
     assert np.all(output1.asnumpy() == expect1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
diff --git a/tests/st/ops/gpu/test_exp_op.py b/tests/st/ops/gpu/test_exp_op.py
index d87ea47c6c..ea205c707a 100644
--- a/tests/st/ops/gpu/test_exp_op.py
+++ b/tests/st/ops/gpu/test_exp_op.py
@@ -49,19 +49,19 @@ def test_exp():
     output0 = exp(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = exp(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
     exp = NetExp()
     output0 = exp(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = exp(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
diff --git a/tests/st/ops/gpu/test_flatten_grad_op.py b/tests/st/ops/gpu/test_flatten_grad_op.py
index d55c59c384..0ee6c40318 100644
--- a/tests/st/ops/gpu/test_flatten_grad_op.py
+++ b/tests/st/ops/gpu/test_flatten_grad_op.py
@@ -19,7 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.ops import operations as P
 from mindspore.ops.operations import _grad_ops as G
 
 
@@ -38,11 +37,6 @@ class NetFlattenGrad(nn.Cell):
 @pytest.mark.env_onecard
 def test_flatten_grad():
     x = Tensor(np.array([[-0.1, 0.3, 3.6], [0.4, 0.5, -3.2]]).astype(np.float32))
-    """
-    expect output:
-    [   [-0.1  0.3  3.6]
-        [ 0.4  0.5 -3.2]    ]
-    """
     expect = np.array([[-0.1, 0.3, 3.6],
                        [0.4, 0.5, -3.2]]).astype(np.float32)
 
diff --git a/tests/st/ops/gpu/test_flatten_op.py b/tests/st/ops/gpu/test_flatten_op.py
index 1c033a471a..3d8ba96b7f 100644
--- a/tests/st/ops/gpu/test_flatten_op.py
+++ b/tests/st/ops/gpu/test_flatten_op.py
@@ -37,11 +37,6 @@ class NetFlatten(nn.Cell):
 def test_flatten():
     x = Tensor(np.array([[-0.1, 0.3, 3.6], [0.4, 0.5, -3.2]]).astype(np.float32))
     expect = np.array([[-0.1, 0.3, 3.6], [0.4, 0.5, -3.2]]).astype(np.float32)
-    """
-    expect output:
-    [[-0.1, 0.3, 3.6], [0.4, 0.5, -3.2]]
-    """
-
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
     flatten = NetFlatten()
     output = flatten(x)
diff --git a/tests/st/ops/gpu/test_float_status_op.py b/tests/st/ops/gpu/test_float_status_op.py
index 5ba2013058..65689577c4 100644
--- a/tests/st/ops/gpu/test_float_status_op.py
+++ b/tests/st/ops/gpu/test_float_status_op.py
@@ -68,7 +68,7 @@ x3 = np.array([[1, 2], [3, 4], [5.0, 88.0]]).astype(np.float32)
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
 def test_status():
-    ms_status = Net();
+    ms_status = Net()
     output1 = ms_status(Tensor(x1))
     output2 = ms_status(Tensor(x2))
     output3 = ms_status(Tensor(x3))
@@ -84,7 +84,7 @@ def test_status():
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
 def test_nan():
-    ms_isnan = Netnan();
+    ms_isnan = Netnan()
     output1 = ms_isnan(Tensor(x1))
     output2 = ms_isnan(Tensor(x2))
     output3 = ms_isnan(Tensor(x3))
@@ -100,7 +100,7 @@ def test_nan():
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
 def test_inf():
-    ms_isinf = Netinf();
+    ms_isinf = Netinf()
     output1 = ms_isinf(Tensor(x1))
     output2 = ms_isinf(Tensor(x2))
     output3 = ms_isinf(Tensor(x3))
@@ -116,7 +116,7 @@ def test_inf():
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
 def test_finite():
-    ms_isfinite = Netfinite();
+    ms_isfinite = Netfinite()
     output1 = ms_isfinite(Tensor(x1))
     output2 = ms_isfinite(Tensor(x2))
     output3 = ms_isfinite(Tensor(x3))
diff --git a/tests/st/ops/gpu/test_gather_op.py b/tests/st/ops/gpu/test_gather_op.py
index 8d11cb32c6..5c882a6567 100644
--- a/tests/st/ops/gpu/test_gather_op.py
+++ b/tests/st/ops/gpu/test_gather_op.py
@@ -913,16 +913,16 @@ class GatherNet2(nn.Cell):
 @pytest.mark.platform_x86_gpu_training
 @pytest.mark.env_onecard
 def test_gather2():
-    x = Tensor(np.array([[4., 5., 4., 1., 5., ],
-                         [4., 9., 5., 6., 4., ],
-                         [9., 8., 4., 3., 6., ],
-                         [0., 4., 2., 2., 8., ],
-                         [1., 8., 6., 2., 8., ],
-                         [8., 1., 9., 7., 3., ],
-                         [7., 9., 2., 5., 7., ],
-                         [9., 8., 6., 8., 5., ],
-                         [3., 7., 2., 7., 4., ],
-                         [4., 2., 8., 2., 9., ]]
+    x = Tensor(np.array([[4., 5., 4., 1., 5.,],
+                         [4., 9., 5., 6., 4.,],
+                         [9., 8., 4., 3., 6.,],
+                         [0., 4., 2., 2., 8.,],
+                         [1., 8., 6., 2., 8.,],
+                         [8., 1., 9., 7., 3.,],
+                         [7., 9., 2., 5., 7.,],
+                         [9., 8., 6., 8., 5.,],
+                         [3., 7., 2., 7., 4.,],
+                         [4., 2., 8., 2., 9.,]]
                         ).astype(np.float32))
 
     indices = Tensor(np.array([[4000, 1, 300000]]).astype(np.int32))
diff --git a/tests/st/ops/gpu/test_layer_norm_grad_op.py b/tests/st/ops/gpu/test_layer_norm_grad_op.py
index 91397a2fd2..032dee50ac 100644
--- a/tests/st/ops/gpu/test_layer_norm_grad_op.py
+++ b/tests/st/ops/gpu/test_layer_norm_grad_op.py
@@ -19,8 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.ops import composite as C
-from mindspore.ops import operations as P
 from mindspore.ops.operations import _grad_ops as G
 
 context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
diff --git a/tests/st/ops/gpu/test_log_op.py b/tests/st/ops/gpu/test_log_op.py
index 33ab09af9d..00007b4330 100644
--- a/tests/st/ops/gpu/test_log_op.py
+++ b/tests/st/ops/gpu/test_log_op.py
@@ -50,10 +50,10 @@ def test_log():
     output1 = log(x1)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     log = NetLog()
@@ -61,7 +61,7 @@ def test_log():
     output1 = log(x1)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
diff --git a/tests/st/ops/gpu/test_logical_op.py b/tests/st/ops/gpu/test_logical_op.py
index 015238783e..1de7a7f870 100644
--- a/tests/st/ops/gpu/test_logical_op.py
+++ b/tests/st/ops/gpu/test_logical_op.py
@@ -27,8 +27,8 @@ class NetAnd(Cell):
         super(NetAnd, self).__init__()
         self.logicaland = P.LogicalAnd()
 
-    def construct(self, x, y):
-        return self.logicaland(x, y)
+    def construct(self, input_x, input_y):
+        return self.logicaland(input_x, input_y)
 
 
 class NetOr(Cell):
@@ -36,8 +36,8 @@ class NetOr(Cell):
         super(NetOr, self).__init__()
         self.logicalor = P.LogicalOr()
 
-    def construct(self, x, y):
-        return self.logicalor(x, y)
+    def construct(self, input_x, input_y):
+        return self.logicalor(input_x, input_y)
 
 
 class NetNot(Cell):
@@ -45,8 +45,8 @@ class NetNot(Cell):
         super(NetNot, self).__init__()
         self.logicalnot = P.LogicalNot()
 
-    def construct(self, x):
-        return self.logicalnot(x)
+    def construct(self, input_x):
+        return self.logicalnot(input_x)
 
 
 x = np.array([True, False, False]).astype(np.bool)
diff --git a/tests/st/ops/gpu/test_logsoftmax_op.py b/tests/st/ops/gpu/test_logsoftmax_op.py
index 83e59beb63..5834f90a10 100644
--- a/tests/st/ops/gpu/test_logsoftmax_op.py
+++ b/tests/st/ops/gpu/test_logsoftmax_op.py
@@ -35,8 +35,8 @@ def test_logsoftmax():
                        [-3.452001, -1.2546989, -1.4618242, -0.79552734]]).astype(np.float32)
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
-    LogSoftmax = P.LogSoftmax()
-    output = LogSoftmax(Tensor(x))
+    logSoftmax = P.LogSoftmax()
+    output = logSoftmax(Tensor(x))
     assert np.allclose(output.asnumpy(), expect)
 
 
@@ -134,7 +134,7 @@ def test_logsoftmaxgrad1():
                        [-0.01768187, 0.26872346, -0.5037259, -0.3376058, -0.3291146, 1.4752979, -0.25972134, 0.8869053,
                         0.25325722, -0.13946185],
                        [-0.5247209, 0.70192003, -1.0808672, 1.4858199, -1.1273282, 0.20728993, 0.38918605, 0.08162117,
-                        0.10445589, 0.3220427]], ).astype(np.float32)
+                        0.10445589, 0.3220427]],).astype(np.float32)
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     net = LogSoftmax(0)
diff --git a/tests/st/ops/gpu/test_lstm_op.py b/tests/st/ops/gpu/test_lstm_op.py
index e796a526d3..d73850668e 100644
--- a/tests/st/ops/gpu/test_lstm_op.py
+++ b/tests/st/ops/gpu/test_lstm_op.py
@@ -23,7 +23,6 @@ from mindspore.common.initializer import initializer
 from mindspore.common.parameter import ParameterTuple, Parameter
 from mindspore.common.tensor import Tensor
 from mindspore.ops import composite as C
-from mindspore.ops import functional as F
 from mindspore.ops import operations as P
 
 context.set_context(device_target='GPU')
@@ -81,7 +80,7 @@ class LstmNet(nn.Cell):
                          -2.9055e-01, -2.8129e-01, 6.0219e-01, 4.9193e-01, 3.3115e-01],
                         [-5.6894e-01, -5.0359e-01, 4.7491e-01, 5.8110e-01, -5.4921e-01,
                          -6.1343e-01, -5.8236e-02, -3.7682e-01, 4.8338e-01, -2.1551e-01]]).astype(np.float32).reshape(
-            [1, -1])
+                             [1, -1])
 
         whh = np.array([[-0.4820, -0.2350],
                         [-0.1195, 0.0519],
@@ -205,7 +204,7 @@ class BiLstmNet(nn.Cell):
                         [0.0299, -0.6071, -0.4683, -0.3363, -0.0044, -0.0007, 0.2700, 0.0202, -0.2880, -0.6869],
                         [0.3025, -0.2461, -0.5128, 0.6327, -0.1438, -0.5100, 0.1924, 0.2023, 0.3129, 0.2271],
                         [0.3777, 0.0546, 0.4790, -0.1895, 0.3588, 0.4490, 0.6850, 0.6240, -0.2739, -0.4474]]).astype(
-            np.float32).reshape([1, -1])
+                            np.float32).reshape([1, -1])
 
         whh = np.array([[0.6346, -0.6366],
                         [-0.0248, -0.6156],
@@ -394,7 +393,7 @@ class MultiLayerBiLstmNet(nn.Cell):
                                     5.5428e-01, 1.0429e-01, 5.1322e-01, 1.9406e-01],
                                    [3.9698e-01, -5.2101e-01, 5.1372e-01, -3.9866e-01, 1.0115e-01, -4.1290e-02,
                                     -3.0980e-01, 2.1607e-01, 4.8420e-01, -1.9267e-01]]).astype(np.float32).reshape(
-            [1, -1])
+                                        [1, -1])
 
         whh_reverse_l0 = np.array([[-0.3231, -0.3960],
                                    [-0.1625, -0.3032],
@@ -460,7 +459,7 @@ class MultiLayerBiLstmNet(nn.Cell):
         weight
             layer0
                 forward
-                    wih            
+                    wih
                     whh
                 reverse
                     wih
@@ -662,7 +661,7 @@ class Net(nn.Cell):
              [-0.4520, 0.4201, -0.2374, -0.1556, -0.4175, -0.6834, 0.3096, -0.1581, 0.0127, 0.6872],
              [0.1788, -0.5442, -0.3675, -0.2887, -0.3004, 0.5813, 0.1618, 0.6875, -0.4678, 0.0071],
              [-0.6453, -0.2528, 0.5675, -0.5154, -0.4129, -0.0214, 0.5539, 0.0343, 0.1712, 0.5644]]).astype(
-            np.float32).reshape([1, -1])
+                 np.float32).reshape([1, -1])
 
         whh_reverse_l0 = np.array([[-0.6657, 0.6330],
                                    [-0.2290, 0.6556],
@@ -728,7 +727,7 @@ class Net(nn.Cell):
         weight
             layer0
                 forward
-                    wih            
+                    wih
                     whh
                 reverse
                     wih
@@ -927,7 +926,7 @@ class LstmNetWithDropout(nn.Cell):
                         [0.5142, 0.0790, -0.1123, -0.2351, 0.3982, -0.6351, 0.5906, 0.3917, -0.0850, -0.5397],
                         [-0.4795, -0.6576, 0.5693, 0.0047, -0.6626, 0.1013, -0.4015, -0.4040, -0.2817, 0.4430],
                         [0.0251, -0.3035, -0.6026, 0.2693, -0.2749, 0.1501, -0.5778, 0.5570, -0.7065, -0.6196]]).astype(
-            np.float32).reshape([1, -1])
+                            np.float32).reshape([1, -1])
 
         whh = np.array([[-0.4344, -0.2529],
                         [0.0377, 0.7046],
diff --git a/tests/st/ops/gpu/test_maximum_op.py b/tests/st/ops/gpu/test_maximum_op.py
index 6b869d981e..eafd9e5136 100644
--- a/tests/st/ops/gpu/test_maximum_op.py
+++ b/tests/st/ops/gpu/test_maximum_op.py
@@ -53,15 +53,15 @@ def test_maximum():
     error = np.ones(shape=[1, 3]) * 1.0e-5
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
-    max = Net()
-    output = max(x, y)
+    max_op = Net()
+    output = max_op(x, y)
     diff = output.asnumpy() - expect
     assert np.all(diff < error)
     assert np.all(-diff < error)
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
-    max = Net()
-    output = max(x, y)
+    max_op_2 = Net()
+    output = max_op_2(x, y)
     diff = output.asnumpy() - expect
     assert np.all(diff < error)
     assert np.all(-diff < error)
diff --git a/tests/st/ops/gpu/test_maxpool_grad_gpu_op.py b/tests/st/ops/gpu/test_maxpool_grad_gpu_op.py
index 6a99591f04..5b65f60964 100644
--- a/tests/st/ops/gpu/test_maxpool_grad_gpu_op.py
+++ b/tests/st/ops/gpu/test_maxpool_grad_gpu_op.py
@@ -19,7 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.ops import operations as P
 from mindspore.ops.operations import _grad_ops as G
 
 
diff --git a/tests/st/ops/gpu/test_minimum_op.py b/tests/st/ops/gpu/test_minimum_op.py
index b071b1759d..9ba8cc5309 100644
--- a/tests/st/ops/gpu/test_minimum_op.py
+++ b/tests/st/ops/gpu/test_minimum_op.py
@@ -16,7 +16,6 @@
 import numpy as np
 import pytest
 
-import mindspore.common.dtype as mstype
 import mindspore.context as context
 from mindspore.common.tensor import Tensor
 from mindspore.nn import Cell
diff --git a/tests/st/ops/gpu/test_momentum_op.py b/tests/st/ops/gpu/test_momentum_op.py
index 2ce6f9ee6e..d81e39a48c 100644
--- a/tests/st/ops/gpu/test_momentum_op.py
+++ b/tests/st/ops/gpu/test_momentum_op.py
@@ -57,17 +57,12 @@ def test_momentum():
     train_network = TrainOneStepCell(net_with_criterion, optimizer)  # optimizer
     train_network.set_train()
     losses = []
-    for i in range(epoch):
+    for _ in range(epoch):
         data = Tensor(np.arange(0, 16).reshape(1, 1, 4, 4).astype(np.float32) * 0.01)
         label = Tensor(np.array([0]).astype(np.int32))
         loss = train_network(data, label)
         losses.append(loss)
 
-    """
-    expect output:
-    [[0.04132498 0.00874167 0.00874167 0.00874167 0.00874167
-      0.00874167 0.00874167 0.00874167 0.00874167 0.00874167]]
-    """
-    error = np.ones(shape=[1, 10]) * 1.0e-6
+    _ = np.ones(shape=[1, 10]) * 1.0e-6
 
     return losses
diff --git a/tests/st/ops/gpu/test_mul_op.py b/tests/st/ops/gpu/test_mul_op.py
index d5929e5b3a..2fbd744d24 100644
--- a/tests/st/ops/gpu/test_mul_op.py
+++ b/tests/st/ops/gpu/test_mul_op.py
@@ -64,35 +64,35 @@ def test_mul():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = mul(x1, y1)
     expect1 = np.multiply(x1_np, y1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     output2 = mul(x2, y2)
     expect2 = np.multiply(x2_np, y2_np)
     diff2 = output2.asnumpy() - expect2
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
 
     output3 = mul(x3, y3)
     expect3 = np.multiply(x3_np, y3_np)
     diff3 = output3.asnumpy() - expect3
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
 
     output4 = mul(x4, y4)
     expect4 = np.multiply(x4_np, y4_np)
     diff4 = output4.asnumpy() - expect4
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     mul = NetMul()
@@ -101,32 +101,32 @@ def test_mul():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = mul(x1, y1)
     expect1 = np.multiply(x1_np, y1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     output2 = mul(x2, y2)
     expect2 = np.multiply(x2_np, y2_np)
     diff2 = output2.asnumpy() - expect2
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
 
     output3 = mul(x3, y3)
     expect3 = np.multiply(x3_np, y3_np)
     diff3 = output3.asnumpy() - expect3
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
 
     output4 = mul(x4, y4)
     expect4 = np.multiply(x4_np, y4_np)
     diff4 = output4.asnumpy() - expect4
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
diff --git a/tests/st/ops/gpu/test_neg_op.py b/tests/st/ops/gpu/test_neg_op.py
index 6e34de4453..8d93c2d5f0 100644
--- a/tests/st/ops/gpu/test_neg_op.py
+++ b/tests/st/ops/gpu/test_neg_op.py
@@ -49,19 +49,19 @@ def test_neg():
     output0 = neg(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = neg(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     neg = NetNeg()
     output0 = neg(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = neg(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
diff --git a/tests/st/ops/gpu/test_one_hot_op.py b/tests/st/ops/gpu/test_one_hot_op.py
index 052e6ea34b..59acb35875 100644
--- a/tests/st/ops/gpu/test_one_hot_op.py
+++ b/tests/st/ops/gpu/test_one_hot_op.py
@@ -20,7 +20,6 @@ import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.common.api import ms_function
-from mindspore.ops import operations as P
 
 context.set_context(device_target='GPU')
 
diff --git a/tests/st/ops/gpu/test_realdiv_op.py b/tests/st/ops/gpu/test_realdiv_op.py
index f911d78489..9268660260 100644
--- a/tests/st/ops/gpu/test_realdiv_op.py
+++ b/tests/st/ops/gpu/test_realdiv_op.py
@@ -19,9 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
 from mindspore.ops import operations as P
 
 
@@ -67,35 +64,35 @@ def test_real_div():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = real_div(x1, y1)
     expect1 = np.divide(x1_np, y1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     output2 = real_div(x2, y2)
     expect2 = np.divide(x2_np, y2_np)
     diff2 = output2.asnumpy() - expect2
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
 
     output3 = real_div(x3, y3)
     expect3 = np.divide(x3_np, y3_np)
     diff3 = output3.asnumpy() - expect3
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
 
     output4 = real_div(x4, y4)
     expect4 = np.divide(x4_np, y4_np)
     diff4 = output4.asnumpy() - expect4
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target='GPU')
     real_div = NetRealDiv()
@@ -104,32 +101,32 @@ def test_real_div():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = real_div(x1, y1)
     expect1 = np.divide(x1_np, y1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     output2 = real_div(x2, y2)
     expect2 = np.divide(x2_np, y2_np)
     diff2 = output2.asnumpy() - expect2
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
 
     output3 = real_div(x3, y3)
     expect3 = np.divide(x3_np, y3_np)
     diff3 = output3.asnumpy() - expect3
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
 
     output4 = real_div(x4, y4)
     expect4 = np.divide(x4_np, y4_np)
     diff4 = output4.asnumpy() - expect4
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
diff --git a/tests/st/ops/gpu/test_reciprocal_op.py b/tests/st/ops/gpu/test_reciprocal_op.py
index 83d9b52ece..b03558cf4e 100644
--- a/tests/st/ops/gpu/test_reciprocal_op.py
+++ b/tests/st/ops/gpu/test_reciprocal_op.py
@@ -49,19 +49,19 @@ def test_Reciprocal():
     output0 = reciprocal(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = reciprocal(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     reciprocal = NetReciprocal()
     output0 = reciprocal(x0)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     output1 = reciprocal(x1)
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
diff --git a/tests/st/ops/gpu/test_reduce_max_op.py b/tests/st/ops/gpu/test_reduce_max_op.py
index 600e872b5d..b2ab808c79 100644
--- a/tests/st/ops/gpu/test_reduce_max_op.py
+++ b/tests/st/ops/gpu/test_reduce_max_op.py
@@ -128,43 +128,43 @@ def test_ReduceMax():
     diff0 = abs(output[0].asnumpy() - expect0)
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output[0].shape() == expect0.shape)
+    assert output[0].shape() == expect0.shape
 
     expect1 = np.max(x1, axis=axis1, keepdims=keep_dims1)
     diff1 = abs(output[1].asnumpy() - expect1)
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output[1].shape() == expect1.shape)
+    assert output[1].shape() == expect1.shape
 
     expect2 = np.max(x2, axis=axis2, keepdims=keep_dims2)
     diff2 = abs(output[2].asnumpy() - expect2)
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output[2].shape() == expect2.shape)
+    assert output[2].shape() == expect2.shape
 
     expect3 = np.max(x3, axis=axis3, keepdims=keep_dims3)
     diff3 = abs(output[3].asnumpy() - expect3)
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output[3].shape() == expect3.shape)
+    assert output[3].shape() == expect3.shape
 
     expect4 = np.max(x4, axis=np_axis4, keepdims=keep_dims4)
     diff4 = abs(output[4].asnumpy() - expect4)
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output[4].shape() == expect4.shape)
+    assert output[4].shape() == expect4.shape
 
     expect5 = np.max(x5, axis=np_axis5, keepdims=keep_dims5)
     diff5 = abs(output[5].asnumpy() - expect5)
     error5 = np.ones(shape=expect5.shape) * 1.0e-5
     assert np.all(diff5 < error5)
-    assert (output[5].shape() == expect5.shape)
+    assert output[5].shape() == expect5.shape
 
     expect6 = np.max(x6, axis=axis6, keepdims=keep_dims6)
     diff6 = abs(output[6].asnumpy() - expect6)
     error6 = np.ones(shape=expect6.shape) * 1.0e-5
     assert np.all(diff6 < error6)
-    assert (output[6].shape() == expect6.shape)
+    assert output[6].shape() == expect6.shape
 
     expect7 = np.max(x7, axis=axis7, keepdims=keep_dims7)
     diff7 = abs(output[7].asnumpy() - expect7)
diff --git a/tests/st/ops/gpu/test_reduce_mean_op.py b/tests/st/ops/gpu/test_reduce_mean_op.py
index ca4b3ea027..d6a10c631f 100644
--- a/tests/st/ops/gpu/test_reduce_mean_op.py
+++ b/tests/st/ops/gpu/test_reduce_mean_op.py
@@ -180,88 +180,88 @@ def test_ReduceMean():
     diff0 = abs(output[0].asnumpy() - expect0)
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output[0].shape() == expect0.shape)
+    assert output[0].shape() == expect0.shape
 
     expect1 = np.mean(x1, axis=axis1, keepdims=keep_dims1)
     diff1 = abs(output[1].asnumpy() - expect1)
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output[1].shape() == expect1.shape)
+    assert output[1].shape() == expect1.shape
 
     expect2 = np.mean(x2, axis=axis2, keepdims=keep_dims2)
     diff2 = abs(output[2].asnumpy() - expect2)
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output[2].shape() == expect2.shape)
+    assert output[2].shape() == expect2.shape
 
     expect3 = np.mean(x3, axis=axis3, keepdims=keep_dims3)
     diff3 = abs(output[3].asnumpy() - expect3)
     error3 = np.ones(shape=expect3.shape) * 1.0e-5
     assert np.all(diff3 < error3)
-    assert (output[3].shape() == expect3.shape)
+    assert output[3].shape() == expect3.shape
 
     expect4 = np.mean(x4, axis=axis4, keepdims=keep_dims4)
     diff4 = abs(output[4].asnumpy() - expect4)
     error4 = np.ones(shape=expect4.shape) * 1.0e-5
     assert np.all(diff4 < error4)
-    assert (output[4].shape() == expect4.shape)
+    assert output[4].shape() == expect4.shape
 
     expect5 = np.mean(x5, axis=axis5, keepdims=keep_dims5)
     diff5 = abs(output[5].asnumpy() - expect5)
     error5 = np.ones(shape=expect5.shape) * 1.0e-5
     assert np.all(diff5 < error5)
-    assert (output[5].shape() == expect5.shape)
+    assert output[5].shape() == expect5.shape
 
     expect6 = np.mean(x6, axis=axis6, keepdims=keep_dims6)
     diff6 = abs(output[6].asnumpy() - expect6)
     error6 = np.ones(shape=expect6.shape) * 1.0e-5
     assert np.all(diff6 < error6)
-    assert (output[6].shape() == expect6.shape)
+    assert output[6].shape() == expect6.shape
 
     expect7 = np.mean(x7, axis=axis7, keepdims=keep_dims7)
     diff7 = abs(output[7].asnumpy() - expect7)
     error7 = np.ones(shape=expect7.shape) * 1.0e-5
     assert np.all(diff7 < error7)
-    assert (output[7].shape() == expect7.shape)
+    assert output[7].shape() == expect7.shape
 
     expect8 = np.mean(x8, axis=axis8, keepdims=keep_dims8)
     diff8 = abs(output[8].asnumpy() - expect8)
     error8 = np.ones(shape=expect8.shape) * 1.0e-5
     assert np.all(diff8 < error8)
-    assert (output[8].shape() == expect8.shape)
+    assert output[8].shape() == expect8.shape
 
     expect9 = np.mean(x9, axis=axis9, keepdims=keep_dims9)
     diff9 = abs(output[9].asnumpy() - expect9)
     error9 = np.ones(shape=expect9.shape) * 1.0e-5
     assert np.all(diff9 < error9)
-    assert (output[9].shape() == expect9.shape)
+    assert output[9].shape() == expect9.shape
 
     expect10 = np.mean(x10, axis=axis10, keepdims=keep_dims10)
     diff10 = abs(output[10].asnumpy() - expect10)
     error10 = np.ones(shape=expect10.shape) * 1.0e-5
     assert np.all(diff10 < error10)
-    assert (output[10].shape() == expect10.shape)
+    assert output[10].shape() == expect10.shape
 
     expect11 = np.mean(x11, axis=axis11, keepdims=keep_dims11)
     diff11 = abs(output[11].asnumpy() - expect11)
     error11 = np.ones(shape=expect11.shape) * 1.0e-5
     assert np.all(diff11 < error11)
-    assert (output[11].shape() == expect11.shape)
+    assert output[11].shape() == expect11.shape
 
     expect12 = np.mean(x12, axis=axis12, keepdims=keep_dims12)
     diff12 = abs(output[12].asnumpy() - expect12)
     error12 = np.ones(shape=expect12.shape) * 1.0e-5
     assert np.all(diff12 < error12)
-    assert (output[12].shape() == expect12.shape)
+    assert output[12].shape() == expect12.shape
 
     expect13 = np.mean(x13, axis=axis13, keepdims=keep_dims13)
     diff13 = abs(output[13].asnumpy() - expect13)
     error13 = np.ones(shape=expect13.shape) * 1.0e-5
     assert np.all(diff13 < error13)
-    assert (output[13].shape() == expect13.shape)
+    assert output[13].shape() == expect13.shape
 
     expect14 = np.mean(x14, axis=np_axis14, keepdims=keep_dims14)
     diff14 = abs(output[14].asnumpy() - expect14)
     error14 = np.ones(shape=expect14.shape) * 1.0e-5
     assert np.all(diff14 < error14)
-    assert (output[14].shape() == expect14.shape)
+    assert output[14].shape() == expect14.shape
diff --git a/tests/st/ops/gpu/test_relu6_grad_op.py b/tests/st/ops/gpu/test_relu6_grad_op.py
index dba788c271..9be8ee6567 100644
--- a/tests/st/ops/gpu/test_relu6_grad_op.py
+++ b/tests/st/ops/gpu/test_relu6_grad_op.py
@@ -19,7 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.ops import operations as P
 from mindspore.ops.operations import _grad_ops as G
 
 
@@ -42,9 +41,9 @@ def test_relu6_grad():
     dy = Tensor(np.array([[[[1, 1, 1],
                             [1, 1, 1],
                             [1, 1, 1]]]]).astype(np.float32))
-    expect = np.array([[[[0, 1, 0, ],
-                         [1, 0, 0, ],
-                         [0, 1, 0, ]]]]).astype(np.float32)
+    expect = np.array([[[[0, 1, 0,],
+                         [1, 0, 0,],
+                         [0, 1, 0,]]]]).astype(np.float32)
     error = np.ones(shape=[3, 3]) * 1.0e-6
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
diff --git a/tests/st/ops/gpu/test_relu6_op.py b/tests/st/ops/gpu/test_relu6_op.py
index f491fe985f..9a336e9e55 100644
--- a/tests/st/ops/gpu/test_relu6_op.py
+++ b/tests/st/ops/gpu/test_relu6_op.py
@@ -38,8 +38,8 @@ def test_relu6():
     x = Tensor(np.array([[[[-1, 1, 10],
                            [5.9, 6.1, 6],
                            [10, 1, -1]]]]).astype(np.float32))
-    expect = np.array([[[[0, 1, 6, ],
-                         [5.9, 6, 6, ],
+    expect = np.array([[[[0, 1, 6,],
+                         [5.9, 6, 6,],
                          [6, 1, 0.]]]]).astype(np.float32)
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
diff --git a/tests/st/ops/gpu/test_relu_op.py b/tests/st/ops/gpu/test_relu_op.py
index ddd0fa6574..3cec34ef5d 100644
--- a/tests/st/ops/gpu/test_relu_op.py
+++ b/tests/st/ops/gpu/test_relu_op.py
@@ -38,8 +38,8 @@ def test_relu():
     x = Tensor(np.array([[[[-1, 1, 10],
                            [1, -1, 1],
                            [10, 1, -1]]]]).astype(np.float32))
-    expect = np.array([[[[0, 1, 10, ],
-                         [1, 0, 1, ],
+    expect = np.array([[[[0, 1, 10,],
+                         [1, 0, 1,],
                          [10, 1, 0.]]]]).astype(np.float32)
 
     context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
diff --git a/tests/st/ops/gpu/test_select_op.py b/tests/st/ops/gpu/test_select_op.py
index 610b03e198..03c100cab9 100644
--- a/tests/st/ops/gpu/test_select_op.py
+++ b/tests/st/ops/gpu/test_select_op.py
@@ -27,8 +27,8 @@ class Net(nn.Cell):
         super(Net, self).__init__()
         self.select = P.Select()
 
-    def construct(self, cond, x, y):
-        return self.select(cond, x, y)
+    def construct(self, cond, input_x, input_y):
+        return self.select(cond, input_x, input_y)
 
 
 cond = np.array([[True, False], [True, False]]).astype(np.bool)
diff --git a/tests/st/ops/gpu/test_slice.py b/tests/st/ops/gpu/test_slice.py
index 490898ce4b..4f63bb83a6 100644
--- a/tests/st/ops/gpu/test_slice.py
+++ b/tests/st/ops/gpu/test_slice.py
@@ -41,8 +41,8 @@ def test_slice():
               [[4., -4., 4.]]]
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
-    slice = Slice()
-    output = slice(x)
+    slice_op = Slice()
+    output = slice_op(x)
     assert (output.asnumpy() == expect).all()
 
 
diff --git a/tests/st/ops/gpu/test_slice_grad.py b/tests/st/ops/gpu/test_slice_grad.py
index 7a0c73ce1b..d6cc84d6ef 100644
--- a/tests/st/ops/gpu/test_slice_grad.py
+++ b/tests/st/ops/gpu/test_slice_grad.py
@@ -20,7 +20,6 @@ import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.common.api import ms_function
-from mindspore.ops import operations as P
 from mindspore.ops.operations import _grad_ops as G
 
 context.set_context(device_target='GPU')
diff --git a/tests/st/ops/gpu/test_softmax_cross_entropy_with_logits_op.py b/tests/st/ops/gpu/test_softmax_cross_entropy_with_logits_op.py
index 3e9714faad..8fd70b8172 100644
--- a/tests/st/ops/gpu/test_softmax_cross_entropy_with_logits_op.py
+++ b/tests/st/ops/gpu/test_softmax_cross_entropy_with_logits_op.py
@@ -19,10 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
-
 
 class NetSoftmaxCrossEntropyWithLogits(nn.Cell):
     def __init__(self):
diff --git a/tests/st/ops/gpu/test_softmax_op.py b/tests/st/ops/gpu/test_softmax_op.py
index c1803b4719..73925d8c3b 100644
--- a/tests/st/ops/gpu/test_softmax_op.py
+++ b/tests/st/ops/gpu/test_softmax_op.py
@@ -116,7 +116,7 @@ def test_softmax_4d():
                     [-1.5992336e-01, -5.9647644e-01, 1.2957820e+00, -1.0650631e-01, 7.0879894e-01],
                     [4.1372257e-01, 3.6408889e-01, -6.3091749e-01, 1.0573713e+00, 1.0981073e+00],
                     [-1.9162457e-01, 3.6392561e-05, -1.8338780e-01, 1.7549801e+00, -9.3534666e-01]]]]).astype(
-        np.float32)
+                        np.float32)
 
     dy = np.array([[[[2.98213929e-01, 3.10518718e+00, -1.64306939e-01, -7.33681679e-01, 5.23136854e-02],
                      [-3.47142726e-01, -1.52662742e+00, 5.26977003e-01, 5.29672280e-02, -4.34386432e-01],
@@ -142,7 +142,7 @@ def test_softmax_4d():
                      [4.14457440e-01, -8.74118507e-01, -4.21902031e-01, 7.87168801e-01, -1.48280108e+00],
                      [1.42688036e+00, -2.02695489e+00, 9.26816165e-01, 9.37691629e-01, 7.85577714e-01],
                      [-6.59893751e-01, 1.14681525e-02, -5.79456389e-01, -1.65206456e+00, 4.37116653e-01]]]]).astype(
-        np.float32)
+                         np.float32)
 
     expect_x = np.array([[[[0.21919312, 0.3903627, 0.12594244, 0.07031325, 0.19418849],
                            [0.19778392, 0.36304963, 0.16719443, 0.1646197, 0.10735231],
diff --git a/tests/st/ops/gpu/test_sparse_softmax_cross_entropy_with_logits_op.py b/tests/st/ops/gpu/test_sparse_softmax_cross_entropy_with_logits_op.py
index 7daa9e38df..df4b692410 100644
--- a/tests/st/ops/gpu/test_sparse_softmax_cross_entropy_with_logits_op.py
+++ b/tests/st/ops/gpu/test_sparse_softmax_cross_entropy_with_logits_op.py
@@ -19,8 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.common.api import ms_function
-
 
 class NetSparseSoftmaxCrossEntropyWithLogits(nn.Cell):
     def __init__(self):
diff --git a/tests/st/ops/gpu/test_sqrt_op.py b/tests/st/ops/gpu/test_sqrt_op.py
index b6f2f42335..35c06d4c30 100644
--- a/tests/st/ops/gpu/test_sqrt_op.py
+++ b/tests/st/ops/gpu/test_sqrt_op.py
@@ -17,7 +17,6 @@ import numpy as np
 import pytest
 
 import mindspore.context as context
-import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.ops import operations as P
 
diff --git a/tests/st/ops/gpu/test_sub_op.py b/tests/st/ops/gpu/test_sub_op.py
index a65d02d9b3..c28e745a7b 100644
--- a/tests/st/ops/gpu/test_sub_op.py
+++ b/tests/st/ops/gpu/test_sub_op.py
@@ -76,19 +76,19 @@ def test_Sub():
     output4 = sub(x4, y4)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
     diff2 = output2.asnumpy() - expect2
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
     diff3 = output3.asnumpy() - expect3
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
     diff4 = output4.asnumpy() - expect4
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     sub = Net()
@@ -99,16 +99,16 @@ def test_Sub():
     output4 = sub(x4, y4)
     diff0 = output0.asnumpy() - expect0
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
     diff1 = output1.asnumpy() - expect1
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
     diff2 = output2.asnumpy() - expect2
     assert np.all(diff2 < error2)
-    assert (output2.shape() == expect2.shape)
+    assert output2.shape() == expect2.shape
     diff3 = output3.asnumpy() - expect3
     assert np.all(diff3 < error3)
-    assert (output3.shape() == expect3.shape)
+    assert output3.shape() == expect3.shape
     diff4 = output4.asnumpy() - expect4
     assert np.all(diff4 < error4)
-    assert (output4.shape() == expect4.shape)
+    assert output4.shape() == expect4.shape
diff --git a/tests/st/ops/gpu/test_tile_op.py b/tests/st/ops/gpu/test_tile_op.py
index cc2145b8f1..6e1b07fe17 100644
--- a/tests/st/ops/gpu/test_tile_op.py
+++ b/tests/st/ops/gpu/test_tile_op.py
@@ -65,16 +65,16 @@ def test_tile():
     diff0 = output[0].asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output[0].shape() == expect0.shape)
+    assert output[0].shape() == expect0.shape
 
     expect1 = np.tile(input_x1, mul1)
     diff1 = output[1].asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output[1].shape() == expect1.shape)
+    assert output[1].shape() == expect1.shape
 
     expect2 = np.tile(input_x2, mul2)
     diff2 = output[2].asnumpy() - expect2
     error2 = np.ones(shape=expect2.shape) * 1.0e-5
     assert np.all(diff2 < error2)
-    assert (output[2].shape() == expect2.shape)
+    assert output[2].shape() == expect2.shape
diff --git a/tests/st/ops/gpu/test_unsorted_segment_sum.py b/tests/st/ops/gpu/test_unsorted_segment_sum.py
index 62267d0383..fc5662ebc0 100644
--- a/tests/st/ops/gpu/test_unsorted_segment_sum.py
+++ b/tests/st/ops/gpu/test_unsorted_segment_sum.py
@@ -20,9 +20,6 @@ import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
 from mindspore.common import dtype as mstype
-from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
 from mindspore.ops import operations as P
 
 context.set_context(device_target='GPU')
diff --git a/tests/st/ops/gpu/test_zeroslike_op.py b/tests/st/ops/gpu/test_zeroslike_op.py
index 3532776876..d8aa8ebdf1 100644
--- a/tests/st/ops/gpu/test_zeroslike_op.py
+++ b/tests/st/ops/gpu/test_zeroslike_op.py
@@ -19,9 +19,6 @@ import pytest
 import mindspore.context as context
 import mindspore.nn as nn
 from mindspore import Tensor
-from mindspore.common.api import ms_function
-from mindspore.common.initializer import initializer
-from mindspore.common.parameter import Parameter
 from mindspore.ops import operations as P
 
 context.set_context(mode=context.PYNATIVE_MODE, device_target="GPU")
@@ -53,14 +50,14 @@ def test_ZerosLike():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = zeros_like(x1)
     expect1 = np.zeros_like(x1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape
 
     context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
     zeros_like = NetZerosLike()
@@ -69,11 +66,11 @@ def test_ZerosLike():
     diff0 = output0.asnumpy() - expect0
     error0 = np.ones(shape=expect0.shape) * 1.0e-5
     assert np.all(diff0 < error0)
-    assert (output0.shape() == expect0.shape)
+    assert output0.shape() == expect0.shape
 
     output1 = zeros_like(x1)
     expect1 = np.zeros_like(x1_np)
     diff1 = output1.asnumpy() - expect1
     error1 = np.ones(shape=expect1.shape) * 1.0e-5
     assert np.all(diff1 < error1)
-    assert (output1.shape() == expect1.shape)
+    assert output1.shape() == expect1.shape