extended tests for Zones

src/main/java/ch/zhaw/gartenverwaltung/io/JsonPlantDatabase.java

@@ -1,5 +1,6 @@
 package ch.zhaw.gartenverwaltung.io;
 
+import ch.zhaw.gartenverwaltung.types.GrowthPhase;
 import ch.zhaw.gartenverwaltung.types.HardinessZone;
 import ch.zhaw.gartenverwaltung.types.Plant;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -82,6 +83,12 @@ public class JsonPlantDatabase implements PlantDatabase {
             result = mapper.readerForListOf(Plant.class).readValue(dataSource);
 
             for (Plant plant : result) {
+                // for discussion because of failing tests:
+                // for(GrowthPhase growthPhase: plant.lifecycle()) {
+                //    if(growthPhase.zone()==zone) {
+                //      keep in result, remove if no match
+                //    }
+                // }
                 plant.inZone(currentZone);
             }