JunitExampleTest

package com...

import static java.lang.boolean.TRUE;
import java.io.InputStream;
import java.util.Map;

@Slf4j
class TscmPropertyConfigTest{

	private final Map<String, Object> applicationYml = getApplicationYmlAsMap(*filename:* "../classes/application.yml");
	private final Map<String, Object> applicationAccYml = getApplicationYmlAsMap(*filename:* "../classes/application-ACC.yml");
	private final Map<String, Object> applicationProdYml = getApplicationYmlAsMap(*filename:* "../classes/application-PRD.yml");
	
	//************************************************************************************************************************
	// SSL Tests - TSCM Chapter 10.1
	//************************************************************************************************************************
	
	@Test
	void serverSslEnabled_inCentralYml_shouldBeTrue(){
		// Arrange
		String targetProperty = "server.ssl.enabled";
		
		// Act
		Object propertyValue = getPropertyFromMap(targetProperty, applicationYml);
		
		// Assert
		assertThat(propertyValue).isEqualTo(true);
		
	}
	
	//************************************************************************************************************************
	// Helper
	//************************************************************************************************************************
	
	// loads yaml file as Map
	private Map<String, Object> getApplicationYmlAsMap(String filename){
		Yaml yaml = new Yaml();
		InputStream inputStream = this.getClass()
									  .getClassLoader()
									  .getResourceAsStream(filename);
		return yaml.load(inputStream);
	}
	
	// iterates over yaml as Map, returns null if property could not be found
	private Object getPropertyFromMap(String property, Map<String, Object> ymlMap{
		String[] pathList = propertyPath.split(*reger:*"\\.");
		for (String pathPart : pathList) {
			Object element = ymlMap.get(pathPart);
			if (element instanceof Map){
				ymlMap = (Map<String, Object> element);
			}  else {
				return element;
			}
		}
		return null;
	}
}