Migrating Spring Rest Service Application to Spring Boot (Part III)

You can read Part I and Part II here and here.

Spring Boot provides a good support for unit and integration testing.  I wanted to take an advantage of that.

First I added dependency for spring-boot-starter-test in my pom.xml,   removed dependencies for jUnit, Mockito and Hamcrest and ran the tests.

Things were not going as smooth as I hoped.

I was using mockMVC which was wired to my WebConfig class (via ContextConfiguration). But that class is no longer needed as Spring Boot takes care of everything. After some digging, adding @SpringApplicationConfiguration(classes = MockApp.class)  worked.

Running unit tests was very useful: it turned out that when removing WebConfig I removed important configuration: useRegisteredSuffixPatternMatch was set to true, which allowed rest requests with domain names in them to be processed correctly and prevented Spring from incorrectly interpreting .com as file extension.

However simply adding this configuration back did not work.  I found several blogs regarding the same issue. In the end the solution was simple, I added back WebConfig which extends WebMvcConfigurerAdapter with overridden configurePathMatch method, but removed @ComponentScan from it.