How to programmatically tell `Spring Boot` to load configuration files from `custom location` when doing JUNIT Test -

how programmatically tell spring boot load configuration yaml files custom location when doing junit test.

in program, use properties of springapplicationbuilder specify custom yaml file .

@configuration @springbootapplication @componentscan public class samplewebapplication {    public static void main(string[] args) {      configurableapplicationcontext applicationcontext = new springapplicationbuilder(samplewebapplication.class)         .properties("spring.config.name:application,conf",             "spring.config.location=classpath:/viaenvironment.yaml")         .build().run(args);      configurableenvironment environment = applicationcontext.getenvironment();     system.out.println(environment.getproperty("app.name"));   } } 

when doing junit test, how should configure it? i'm using spring boot 1.5.1.

please use option set spring.config.location through @testpropertysource:

 @testpropertysource(properties = { "spring.config.location = classpath:<path-to-your-yml-file>" }