我有这个功能，我想测试一下。
async function PutBucketPolicy(putBucketPolicyParams) {
logger.debug("---- PutBucketPolicy");
return new Promise(async(resolve, reject) => {
s3.putBucketPolicy(putBucketPolicyParams, function(err, data) {
if (err)
{
resolve(err);
logger.debug("Error occured!");
logger.debug(err, err.stack); // an error occurred
}
else
{
resolve(data);
logger.debug("Data: ", data);
logger.debug(data); // successful response
}
});
});
}
我想如何测试它:
describe("Testing PutBucketPolicy function", () => {
describe("when called with a valid bucket policy object and an event then it", () => {
it("sets the bucket policy through an aws call.", async() => {
AWSMock.mock("S3","putBucketPolicy",{ "Body": Buffer.from("somestring") });
const result = await PutBucketPolicy(helper.putBucketPolicyParams);
expect( result).toMatchObject(helper.resultPolicyObject);
AWSMock.restore('S3');
});
});
});
问题是它总是返回[ExpiredToken:提供的 token 已过期。]，因为模拟本身不起作用，它会尝试走出互联网并执行 s3.putBucketPolicy 函数.
我对此很陌生。我应该怎么做才能让它发挥作用？
最佳答案
您需要在测试方法中初始化S3客户端，如doc中所述。 .
NB: The AWS Service needs to be initialised inside the function being tested in order for the SDK method to be mocked e.g for an AWS Lambda function example 1 will cause an error region not defined in config whereas in example 2 the sdk will be successfully mocked.
Example 1:
const AWS = require('aws-sdk');
const sns = AWS.SNS();
const dynamoDb = AWS.DynamoDB();
exports.handler = function(event, context) {
// do something with the services e.g. sns.publish
}
Example 2
const AWS = require('aws-sdk');
exports.handler = function(event, context) {
const sns = AWS.SNS();
const dynamoDb = AWS.DynamoDB();
// do something with the services e.g. sns.publish
}
Also note that if you initialise an AWS service inside a callback from an async function inside the handler function, that won't work either.
关于javascript - aws-sdk-mock 模拟 s3.putBucketPolicy 不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60828331/