create test for metastring

common/implementation/src/test/java/MetaTest.java

@@ -6,6 +6,7 @@ import com.dfsek.tectonic.yaml.YamlConfiguration;
 import com.dfsek.terra.api.config.meta.Meta;
 import com.dfsek.terra.config.preprocessor.MetaListLikePreprocessor;
 import com.dfsek.terra.config.preprocessor.MetaMapPreprocessor;
+import com.dfsek.terra.config.preprocessor.MetaStringPreprocessor;
 import com.dfsek.terra.config.preprocessor.MetaValuePreprocessor;
 import org.junit.jupiter.api.Test;
 
@@ -59,4 +60,28 @@ public class MetaTest {
         @Value("map")
         private @Meta Map<@Meta String, @Meta String> map;
     }
+
+    @Test
+    public void testMetaString() {
+        Configuration meta = new YamlConfiguration(MetaTest.class.getResourceAsStream("/meta.yml"), "meta.yml");
+        Configuration metaTarget = new YamlConfiguration(MetaTest.class.getResourceAsStream("/metaTarget.yml"), "metaTarget.yml");
+
+        Map<String, Configuration> configurationMap = new HashMap<>();
+
+        configurationMap.put(meta.getName(), meta);
+        configurationMap.put(metaTarget.getName(), metaTarget);
+
+        ConfigLoader loader = new ConfigLoader();
+        loader.registerPreprocessor(Meta.class, new MetaValuePreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaListLikePreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaMapPreprocessor(configurationMap));
+        loader.registerPreprocessor(Meta.class, new MetaStringPreprocessor(configurationMap));
+
+        System.out.println(loader.load(new MetaStringConfig(), meta).string);
+    }
+
+    private static final class MetaStringConfig implements ConfigTemplate {
+        @Value("string")
+        private @Meta String string;
+    }
 }

common/implementation/src/test/resources/meta.yml

@@ -13,3 +13,4 @@ map:
     - metaTarget.yml:map2
   one: ONE
   two: TWO
+string: "one-${metaTarget.yml:string.two}-${metaTarget.yml:string.three}-four-five-${metaTarget.yml:string.six}"

common/implementation/src/test/resources/metaTarget.yml

@@ -10,3 +10,7 @@ map1:
   five: FIVE
 map2:
   six: SIX
+string:
+  two: two
+  three: three
+  six: six