CAS-13791 : Modified tests to have gain=0.2. This reduces variability across build systems to below the standard tolerance threshold. Enabled the test for Mac too.
Pull request #728: CAS-13085
Merge in CASA/casa6 from CAS-13085 to master
* commit 'e13ae7abcc887ef6197e92fceb4aab07bd0c6778': (26 commits) CAS-13085: as requested by Sandra, removed anachronistic imports
Enable test_task_testconcat in Bamboo tests CAS-13085: Made virtualconcat raise an exception when an input MS is a link. CAS-13085: Added an improvement to the handling of missing scratch columns to virtualconcat which I had already introduced earlier in concat. Both tasks behave the same now. Deleted some commented out lines in concat.
Removed casa5 related imports and any use of is_CASA6/is_python3 from the code. CAS-13085: extended mslisthelper method check_mslist by functionlity to verify the presence of unpopulated POINTING tables. CAS-13085: Added test for unpopulated optional Main Table columns CAS-13085: align testconcat and concat with virtualconcat: always use testcontent=Fals in check_mslist, i.e. warn whenever there is a potential problem even if the datacolumn is not populated. CAS-13085: make virtualconcat complain then there are inconsistent columns in the input MSs even if they are not populated
Moved the mslisthelper to src/private as suggested by Tak. CAS-13085: sanitize members of vis input parameter to remove trailing "/"
Made test scripts import ctsys for casa 6. Made task scripts use os.scandir instead of walk for casa 6.
Verified Ville's CASA6 version of task_testconcat with the space-only indentation and copied it on the CASA5 version.
Replace tabs with spaces in Casa 6 task_testconcat.py
Aligned the two copies of task_testconcat and made both Python2/3 compatible.
Updated unit tests for test_concat.
Updating the datapath to the testdata in test_testconcat. Made both casa5 and casa6 test scripts identical. CAS-13095 typo correction in a comment CAS-13085: Removed the line from _future_ import print_function as requested by S. Castro. CAS-13085: Introduced the use of mslisthelper.check_mslist() also in task_testconcat
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