[issue30666] IDLE: add tests for auto-completions

[Terry J. Reedy]

Changes by Terry J. Reedy :


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assignee:  -> terry.reedy
components: +IDLE

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[issue30666] IDLE: add tests for auto-completions

[Terry J. Reedy]

New submission from Terry J. Reedy:

1. Test_autocomplete.AutoCompleteTest has a test_method for each method of 
autocomplete.AutoComplete.  The last 5 test methods are empty ('pass'). Finish 
them.  A couple of the methods might be usefully split into smaller methods.  
Get_entity is actually a function, as 'self' is ignored. After the first else, 
fetch_completions is also independent of 'self'.  PR 2011 combines the two 
blocks into a function that can be moved to run.py.

These method tests should be supplemented by user action tests with live 
widgets and simulated key events.  Such tests would be black box tests in that 
they should be independent of the implementation.

2. AutoCompleteWindow, in autocomplete_w, is untested.  It was the locus of the 
bug in #15786.  To get the fix into 3.6.2, it was merged after hand-testing, 
without adding automated tests.  They need to be added before further patching.

Some of the methods of ACW seem hard to test as they are long and hard to 
describe succinctly.  Perhaps black-box user tests should be emphasized for 
this class.

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messages: 296019
nosy: terry.reedy
priority: normal
severity: normal
stage: needs patch
status: open
title: IDLE: add tests for auto-completions
type: enhancement
versions: Python 3.6, Python 3.7

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