bpo-30303: IDLE test_textview: add comments and test; increase coverage to 100%#1641

Merged

terryjreedy merged 1 commit intopython:masterfrom terryjreedy:bpo-30303

May 18, 2017

+25-9

Commits on May 18, 2017

test_textview: add comments and test that increases coverage to 100%
terryjreedy
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