End to end integration test for multiple spring boot applications under Maven

Question

What is the recommended way of running an end to end integration test for multiple Spring boot applications in the Maven build\'s verify phase?

Answer 1

For certain reasons, I decided to use the second approach and had a similar problem to solve. I came up with a combination of maven-dependency-plugin and process-exec-maven-plugin.

So assume we have some applications (e.g. app_A, app_B, ...) and a module T where the tests are implemented.

The idea was to copy applications to local build directory and start them, before starting tests. After test run the applications will be stopped.

To achieve this I added in module Ts pom the following build-configurations

  ...
  
    
    org.apache.maven.plugins
    maven-dependency-plugin
    3.1.2
    
      
        copy-app-A
        
          copy
        
        
        
          
            
              ${project.groupId}
              app_a
              ${project.version}
              ${project.build.directory}
              app_a.jar
            
          
        
      
      
    
  
  
    
    com.bazaarvoice.maven.plugins
    process-exec-maven-plugin
    0.9
    
      
        
        start-external-server
        
        
          start
        
        
          run-app-A
          
            java
            -jar
            ${project.build.directory}/app_a.jar
          
        
      
      
        
        stop-server
        
        
          stop-all
        
      
    
  
  ...

For a working example I created a simple project.