[issue31480] IDLE: disable ZzDummy, revise tests to match

[Terry J. Reedy]

New submission from Terry J. Reedy:

When the zzdummy example-test extension was added as part of #27099, it was enabled in config-extensions.def in order to make tests pass as they were.  This was not intended to be permanent as it adds a menu item that changes the current file and a user-modifiable event-key pair to the keys list on the config dialog keys page.

Disable it by default (in config-extensions.def) and fix the tests so that they pass.  This should primarily mean adding a enable entry to userCfg['extensions'].

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assignee: terry.reedy
components: IDLE
messages: 302215
nosy: terry.reedy
priority: normal
severity: normal
stage: test needed
status: open
title: IDLE: disable ZzDummy, revise tests to match
type: behavior
versions: Python 3.6, Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31480>
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