[#PIPE2D-562] Integration test does not produce consistent output

sogo.mineo reported in the slack #drp-2d channel that the integration test does not produce a consistent output in two separate single-threaded runs:

@@ -3102,7 +3102,7 @@
 reduceArc.identifyLines INFO: Matched 57 from 87 observed and 72 reference lines
 reduceArc.identifyLines INFO: Matched 58 from 88 observed and 72 reference lines
 reduceArc.identifyLines INFO: Matched 58 from 88 observed and 72 reference lines
-reduceArc.identifyLines INFO: Matched 57 from 88 observed and 72 reference lines
+reduceArc.identifyLines INFO: Matched 57 from 87 observed and 72 reference lines
 reduceArc.identifyLines INFO: Matched 56 from 87 observed and 72 reference lines
 reduceArc.identifyLines INFO: Matched 56 from 87 observed and 72 reference lines
 reduceArc.identifyLines INFO: Matched 57 from 87 observed and 72 reference lines

1. Investigate the cause of the problem and fix
2. Implement regressional checks in the integration test such that unexpected changes to the output trigger an error message and test failure.

[PIPE2D-562] Integration test does not produce consistent output Created: 20/Apr/20 Updated: 05/Jan/21 Resolved: 09/May/20
Status:	Done
Project:	DRP 2-D Pipeline
Component/s:	None
Affects Version/s:	None
Fix Version/s:	None

[PIPE2D-562] Integration test does not produce consistent output Created: 20/Apr/20 Updated: 05/Jan/21 Resolved: 09/May/20