1 87c31341 2020-10-11 neels 
 2 87c31341 2020-10-11 neels --- test_minus_after_plus()
 3 87c31341 2020-10-11 neels [0] same lines L2 R2 @L 0 @R 0
 4 87c31341 2020-10-11 neels [1] minus lines L3 R0 @L 4 @R 10
 5 87c31341 2020-10-11 neels [2] plus lines L0 R3 @L 4 @R 4
 6 87c31341 2020-10-11 neels [3] same lines L2 R2 @L 10 @R 10
 7 87c31341 2020-10-11 neels 
 8 87c31341 2020-10-11 neels --- test_plus_after_plus()
 9 87c31341 2020-10-11 neels [0] same lines L2 R2 @L 0 @R 0
10 87c31341 2020-10-11 neels [1] minus lines L3 R0 @L 4 @R 4
11 87c31341 2020-10-11 neels [2] plus lines L0 R3 @L 10 @R 4
12 87c31341 2020-10-11 neels [3] same lines L2 R2 @L 10 @R 10