2 files changed, 12 insertions, 0 deletions
diff --git a/src/main/java/design/persistence/JSONLeagueDatabase.java b/src/main/java/design/persistence/JSONLeagueDatabase.java
index 977e162..b5f4bc3 100644
--- a/src/main/java/design/persistence/JSONLeagueDatabase.java
+++ b/src/main/java/design/persistence/JSONLeagueDatabase.java
@@ -23,6 +23,12 @@ public class JSONLeagueDatabase implements LeagueDatabase {
         return INSTANCE;
     }
 
+    // static instance strictly for testing, to not add data to leaguedb.json
+    static JSONLeagueDatabase testInstance(String filename) {
+        INSTANCE = new JSONLeagueDatabase(filename);
+        return INSTANCE;
+    }
+
     private final Map<Integer, League> cache;
     private final ObjectMapper mapper;
     private final File file;
diff --git a/src/main/java/design/persistence/JSONPersonalDatabase.java b/src/main/java/design/persistence/JSONPersonalDatabase.java
index b92dddf..e035ae4 100644
--- a/src/main/java/design/persistence/JSONPersonalDatabase.java
+++ b/src/main/java/design/persistence/JSONPersonalDatabase.java
@@ -22,6 +22,12 @@ public class JSONPersonalDatabase implements PersonalDatabase {
         return INSTANCE;
     }
 
+    // static instance strictly for testing, to not add data to personaldb.json
+    static JSONPersonalDatabase testInstance(String filename) {
+        INSTANCE = new JSONPersonalDatabase(filename);
+        return INSTANCE;
+    }
+
     private final Map<String, Golfer> cache;
     private final ObjectMapper mapper;
     private final File file;