Spring Boot Test doesn't load complex configuration properties - spring-boot

Question

I have the following yaml configuration in a Spring Boot application:
document-types:
de_DE:
REPORT: ["Test"]
This is loaded using the following class and works perfectly fine when the SpringBootApplication is started (you can debug the DemoApplication.java to verify):
#Component
#ConfigurationProperties
#Data
public class DocumentTypeConfiguration {
private Map<String, Map<String, List<String>>> documentTypes;
}
But when I execute the following test, the documentTypes aren't loaded (it's null even though the someSrting value is properly set)
#SpringBootTest(classes = {DocumentTypeConfiguration.class, DocumentTypeService.class})
class DocumentTypeServiceTest {
#Autowired
private DocumentTypeConfiguration documentTypeConfiguration;
#Value("${test}")
private String someSrting;
#Autowired
private DocumentTypeService documentTypeService;
#Test
void testFindDocumentType() {
String documentType = "Test";
String result = documentTypeService.getDocumentType(documentType);
String expected = "this";
assertEquals(expected, result);
}
}
Any idea what I might be doing wrong? Or maybe SpringBootTest doesn't support complex types for properties?
Source code and a test can be find here: https://github.com/nadworny/spring-boot-test-properties

Answer 1

This annotation was missing in the test: #EnableConfigurationProperties
So the test class looks like this:
#SpringBootTest(classes = {DocumentTypeConfiguration.class, DocumentTypeService.class})
#EnableConfigurationProperties(DocumentTypeConfiguration.class)
class DocumentTypeServiceTest {
#Autowired
private DocumentTypeConfiguration documentTypeConfiguration;
#Value("${test}")
private String someSrting;
#Autowired
private DocumentTypeService documentTypeService;
#Test
void testFindDocumentType() {
String documentType = "Test";
String result = documentTypeService.getDocumentType(documentType);
String expected = "this";
assertEquals(expected, result);
}
}