[issue30666] IDLE: add tests for autocomplete window.

[Terry J. Reedy]

Terry J. Reedy added the comment:

#30632 (and #30348) partly address 1., so transferring it there, and keeping this for autocomplete_w.

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title: IDLE: add tests for auto-completions -> IDLE: add tests for autocomplete window.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30666>
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