Enhance split_string to support splitting on white space [TG-2922]#2071

Merged

thk123 merged 6 commits intodiffblue:developfrom

thk123:refactor/split-string-unit-tests

Apr 19, 2018

Commits on Apr 16, 2018

Removing wrong elements from the make file
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Migrate old string utils unit tests
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Refactored test to run all combinations
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Adding tests for empty string edge cases
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Allowed split_string to be used on whitespace if not also trying to strip
thk123
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Commits on Apr 19, 2018

Revert to aborting precondition for function inputs
thk123
committed