Only place trains if all switches are set

fuzz1_input.txt

@@ -4,6 +4,7 @@ add track (0,15) -> (1,15)
 add track (1,1) -> (1,14)
 add switch (1,14) -> (0,14),(1,0)
 set switch 5 positio (1,0)
+set switch 2 position (1,0)
 create engine diesel T3 Emma 1 false true
 add train 1 T3-Emma
 create coach passenger 1906 true true
@@ -13,6 +14,8 @@ add train 1 W1
 add train 1 W2
 add train 1 W3
 put train 1 at (0,0) in direction 0,-1
+delete track 2
+add switch (1,14) -> (0,14),(1,0)
 step -20
 step 20
 set switch 5 position (0,14)

fuzz1_output.txt

@@ -4,6 +4,7 @@ Error, track is not connected to other tracks
 Error, track is not connected to other tracks
 2
 Error, invalid set switch argument syntax
+OK
 T3-Emma
 diesel engine T3-Emma added to train 1
 1
@@ -13,6 +14,8 @@ passenger coach W1 added to train 1
 passenger coach W2 added to train 1
 Error, could not add rolling stock to train
 Error, could not place train
+OK
+2
 Error, rail tracks/switches not set up
 Error, rail tracks/switches not set up
 Error, could not set switch

fuzz3_output.txt

@@ -9,4 +9,4 @@ diesel engine T3-Emma added to train 1
 freight coach W1 added to train 1
 special coach W2 added to train 1
 passenger coach W3 added to train 1
-Error, could not place train
+Error, switches not set up

src/edu/kit/informatik/model/ModelRailwaySimulation.java

@@ -384,6 +384,8 @@ public class ModelRailwaySimulation {
             throw new InvalidInputException("train is already placed");
         } else if (direction.getX() != 0 && direction.getY() != 0) {
             throw new InvalidInputException("invalid train direction");
+        } else if (!railNetwork.isReadyForTrains()) {
+            throw new InvalidInputException("switches not set up");
         }
         // attempt to place train
         boolean placed = train.placeOn(railNetwork, position, direction);