import torch
import numpy as np
import torch_npu

from torch_npu.testing.testcase import TestCase, run_tests
from torch_npu.testing.common_utils import create_common_tensor


class TestCross(TestCase):
    def cpu_op_exec(self, input1, input2):
        output = torch.cross(input1, input2)
        output = output.numpy()
        return output

    def cpu_op_exec_dim(self, input1, input2, dim):
        output = torch.cross(input1, input2, dim)
        output = output.numpy()
        return output

    def npu_op_exec(self, input1, input2):
        output = torch.cross(input1, input2)
        output = output.to("cpu")
        output = output.numpy()
        return output

    def npu_op_exec_dim(self, input1, input2, dim):
        output = torch.cross(input1, input2, dim)
        output = output.to("cpu")
        output = output.numpy()
        return output

    def test_median_shape_format_dim(self):
        shape_format_dim = [
            [[np.float32, -1, (4, 3)], 1],
            [[np.float32, -1, (4, 3, 3)], 1],
            [[np.float32, -1, (3, 2)], 0],
        ]
        for item in shape_format_dim:
            cpu_input_left, npu_input_left = create_common_tensor(item[0], -2, 2)
            cpu_input_right, npu_input_right = create_common_tensor(item[0], -2, 2)
            cpu_output = self.cpu_op_exec_dim(cpu_input_left, cpu_input_right, item[1])
            npu_output = self.npu_op_exec_dim(npu_input_left, npu_input_right, item[1])
            self.assertRtolEqual(cpu_output, npu_output)

    def test_median_shape_format(self):
        shape_format = [
            [[np.float32, -1, (5, 3)]],
            [[np.float32, -1, (5, 3, 4)]],
        ]
        for item in shape_format:
            cpu_input_left, npu_input_left = create_common_tensor(item[0], -2, 2)
            cpu_input_right, npu_input_right = create_common_tensor(item[0], -2, 2)
            cpu_output = self.cpu_op_exec(cpu_input_left, cpu_input_right)
            npu_output = self.npu_op_exec(npu_input_left, npu_input_right)
            self.assertRtolEqual(cpu_output, npu_output)


if __name__ == "__main__":
    run_tests()