我正在编写测试用例,以便使用boto3从s3中查找/获取密钥.我过去使用过moto来测试boto(而不是3)代码,但是我正试图用这个项目转到boto3,并遇到了一个问题：
class TestS3Actor(unittest.TestCase):
@mock_s3
def setUp(self):
self.bucket_name = 'test_bucket_01'
self.key_name = 'stats_com/fake_fake/test.json'
self.key_contents = 'This is test data.'
s3 = boto3.session.Session().resource('s3')
s3.create_bucket(Bucket=self.bucket_name)
s3.Object(self.bucket_name,self.key_name).put(Body=self.key_contents)
错误：
... File "/Library/Python/2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py",line 344,in _make_request self._raise_timeout(err=e,url=url,timeout_value=conn.timeout) File "/Library/Python/2.7/site-packages/botocore/vendored/requests/packages/urllib3/connectionpool.py",line 314,in _raise_timeout if 'timed out' in str(err) or 'did not complete (read)' in str(err): # Python 2.6 TypeError: __str__ returned non-string (type WantWriteError) botocore.hooks: DEBUG: Event needs-retry.s3.CreateBucket: calling handler <botocore.retryhandler.RetryHandler object at 0x10ce75310>
看起来moto没有正确地模仿boto3调用 – 我该如何工作呢？
解决方法
对我来说有用的是在用boto3运行我的模拟测试之前用boto设置环境.
这是一个工作片段：
import unittest
import boto
from boto.s3.key import Key
from moto import mock_s3
import boto3
class TestS3Actor(unittest.TestCase):
mock_s3 = mock_s3()
def setUp(self):
self.mock_s3.start()
self.location = "eu-west-1"
self.bucket_name = 'test_bucket_01'
self.key_name = 'stats_com/fake_fake/test.json'
self.key_contents = 'This is test data.'
s3 = boto.connect_s3()
bucket = s3.create_bucket(self.bucket_name,location=self.location)
k = Key(bucket)
k.key = self.key_name
k.set_contents_from_string(self.key_contents)
def tearDown(self):
self.mock_s3.stop()
def test_s3_boto3(self):
s3 = boto3.resource('s3',region_name=self.location)
bucket = s3.Bucket(self.bucket_name)
assert bucket.name == self.bucket_name
# retrieve already setup keys
keys = list(bucket.objects.filter(Prefix=self.key_name))
assert len(keys) == 1
assert keys[0].key == self.key_name
# update key
s3.Object(self.bucket_name,self.key_name).put(Body='new')
key = s3.Object(self.bucket_name,self.key_name).get()
assert 'new' == key['Body'].read()
使用py.test test.py运行时,您将获得以下输出：
collected 1 items test.py . ========================================================================================= 1 passed in 2.22 seconds =========================================================================================