Spring @PropertySource using YAML

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Spring-boot has a helper for this, just add

@ContextConfiguration(initializers = ConfigFileApplicationContextInitializer.class)

at the top of your test classes or an abstract test superclass.

Edit: I wrote this answer five years ago. It doesn’t work with recent versions of Spring Boot. This is what I do now (please translate the Kotlin to Java if necessary):

@TestPropertySource(locations=["classpath:application.yml"])
@ContextConfiguration(
        initializers=[ConfigFileApplicationContextInitializer::class]
)

is added to the top, then

    @Configuration
    open class TestConfig {

        @Bean
        open fun propertiesResolver(): PropertySourcesPlaceholderConfigurer {
            return PropertySourcesPlaceholderConfigurer()
        }
    }

to the context.

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