[ERROR] Tests run: 3, Failures: 0, Errors: 3, Skipped: 0, Time elapsed: 0.041 s <<< FAILURE! - in it.polimi.ingsw.model.CloudsManagerTest
[ERROR] removeStudentsTest4Players Time elapsed: 0.036 s <<< ERROR!
java.lang.NullPointerException: Cannot invoke "it.polimi.ingsw.model.Bag.extraction()" because "this.this$0.b" is null
at it.polimi.ingsw.model.CloudsManagerTest.removeStudentsTest4Players(CloudsManagerTest.java:46)
[ERROR] removeStudentsTest2Players Time elapsed: 0.001 s <<< ERROR!
java.lang.NullPointerException: Cannot invoke "it.polimi.ingsw.model.Bag.extraction()" because "this.this$0.b" is null
at it.polimi.ingsw.model.CloudsManagerTest.removeStudentsTest2Players(CloudsManagerTest.java:15)
[ERROR] removeStudentsTest3Players Time elapsed: 0.002 s <<< ERROR!
java.lang.NullPointerException: Cannot invoke "it.polimi.ingsw.model.Bag.extraction()" because "this.this$0.b" is null
at it.polimi.ingsw.model.CloudsManagerTest.removeStudentsTest3Players(CloudsManagerTest.java:30)