对一个使用boto3上传文件到S3的函数进行单元测试

import unittest
from unittest.mock import MagicMock
from your_module import upload_to_s3

class TestUploadToS3(unittest.TestCase):
    def test_upload_file(self):
        # 测试用例
        pass

def test_upload_file(self):
    # 创建虚拟的S3客户端对象
    s3_client = MagicMock()

    # 设置上传文件的参数
    bucket_name = 'your_bucket_name'
    file_path = 'path/to/your/file.txt'
    key = 'your_key'

    # 设置预期结果
    expected_result = True

    # 调用上传函数
    result = upload_to_s3(s3_client, bucket_name, file_path, key)

    # 断言结果是否符合预期
    self.assertEqual(result, expected_result)

def upload_to_s3(s3_client, bucket_name, file_path, key):
    try:
        # 使用boto3上传文件到S3
        s3_client.upload_file(file_path, bucket_name, key)
        return True
    except Exception as e:
        print(f"Error uploading file to S3: {e}")
        return False

python -m unittest test_upload_to_s3.py