feat: POJO mappers

src/test/java/eu/ztsh/wymiana/util/UserMapperTest.java

@@ -0,0 +1,28 @@
+package eu.ztsh.wymiana.util;
+
+import eu.ztsh.wymiana.EntityCreator;
+import eu.ztsh.wymiana.model.Currency;
+import eu.ztsh.wymiana.model.User;
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class UserMapperTest {
+
+    @Test
+    void entityToPojoTest() {
+        var entity = EntityCreator.user().build();
+        var expected = new User(
+            EntityCreator.Constants.NAME,
+            EntityCreator.Constants.SURNAME,
+            EntityCreator.Constants.PESEL,
+            Map.of("PLN", new Currency("PLN", EntityCreator.Constants.PLN))
+        );
+        assertThat(UserMapper.entityToPojo(entity))
+            .usingRecursiveComparison()
+            .isEqualTo(expected);
+    }
+
+}