Helper function for choosing a child group default attribute.

[RubelMozumder]

#255

[coveralls]

Pull Request Test Coverage Report for Build 9517792881

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 12 of 12 (100.0%) changed or added relevant lines in 1 file are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.6%) to 96.97%

---

Files with Coverage Reduction	New Missed Lines	%
tests/dataconverter/test_nexus_tree.py	5	89.36%

Totals
Change from base Build 9511493514:	-0.6%
Covered Lines:	608
Relevant Lines:	627

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9519465821

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 14 of 14 (100.0%) changed or added relevant lines in 1 file are covered.
• 6 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.8%) to 96.82%

---

Files with Coverage Reduction	New Missed Lines	%
tests/dataconverter/test_nexus_tree.py	6	87.23%

Totals
Change from base Build 9511493514:	-0.8%
Covered Lines:	609
Relevant Lines:	629

---

💛 - Coveralls