Many more tests and fixes

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/FlowerShield.cs

@@ -1,3 +1,5 @@
+using PkmnLib.Plugin.Gen7.Scripts.Pokemon;
+
 namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
 
 [Script(ScriptCategory.Move, "flower_shield")]
@@ -14,6 +16,7 @@ public class FlowerShield : Script, IScriptOnSecondaryEffect
 
         var batchId = new EventBatchId();
         var sides = battleData.Battle.Sides;
+        var anyFound = false;
         foreach (var side in sides)
         {
             foreach (var pokemon in side.Pokemon)
@@ -22,8 +25,13 @@ public class FlowerShield : Script, IScriptOnSecondaryEffect
                     continue;
                 if (!pokemon.Types.Contains(grassType))
                     continue;
+                if (pokemon.Volatile.Any(x => x.Script?.IsSemiInvulnerableTurn == true))
+                    continue;
                 pokemon.ChangeStatBoost(Statistic.Defense, 1, pokemon == move.User, false, batchId);
+                anyFound = true;
             }
         }
+        if (!anyFound)
+            move.GetHitData(target, hit).Fail();
     }
 }