Using Spring Boot @SpyBean

Today, a colleague asked me to help him write a REST API integration test. We use Spring’s MockMvc API to test the REST API. The application uses MongoDB with Spring Data MongoDB. The application uses both MongoTemplate and Mongo based repositories for working with MongoDB. To make tests work independent of MongoDB, we mock Spring MongoDB repository interfaces.

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Caitie McCaffrey Talk: The Verification of a Distributed System

This is a great video that explains importance of developer testing in writing robust distributed system. She talked about unit testing, integration testing, and verification language that can be used to verify a system. Unit testing is the first thing a developer can do to make sure distributed system is correct. She shared a number of anecdotes in the talk that make this talk easy to understand.

Using Siege for quick and dirty load test — Apache Benchmark Alternative

Today, I wanted to run a quick and dirty load test on one of my applications. One of the alternative that most of the developers are aware of is Apache Benchmark(or ab). For some reason, ab does not work on my mac book because of Connection reset by peer errors. So, I looked around and found Siege. It is very similar to ab and works well on mac.

To test the GET request, you would run

siege http://example.com/rest/todos/3 -c 100 -r 100

To test the POST request, you would run

siege -H 'Content-Type:application/json' "http://example.com/rest/todos POST < ./data.json" -c 10 -r 1000