Reuse a testing implementation of the path protocol in tests

[serhiy-storchaka]

BPO	32964
Nosy	@brettcannon, @ezio-melotti, @serhiy-storchaka, @miss-islington
PRs	bpo-32964: Reuse a testing implementation of the path protocol in tests. #5930 [3.7] bpo-32964: Reuse a testing implementation of the path protocol in tests. (GH-5930) #5957 [3.6] bpo-32964: Reuse a testing implementation of the path protocol in tests. (GH-5930). #5958

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2018-03-03.12:19:54.341>
created_at = <Date 2018-02-27.19:40:07.400>
labels = ['3.7', '3.8', 'type-feature', 'tests']
title = 'Reuse a testing implementation of the path protocol in tests'
updated_at = <Date 2018-03-03.12:19:54.340>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2018-03-03.12:19:54.340>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2018-03-03.12:19:54.341>
closer = 'serhiy.storchaka'
components = ['Tests']
creation = <Date 2018-02-27.19:40:07.400>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 32964
keywords = ['patch']
message_count = 5.0
messages = ['313018', '313067', '313128', '313129', '313186']
nosy_count = 4.0
nosy_names = ['brett.cannon', 'ezio.melotti', 'serhiy.storchaka', 'miss-islington']
pr_nums = ['5930', '5957', '5958']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue32964'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8']

[serhiy-storchaka]

In a number of tests there are simple implementations of the path protocol. Unlike to pathlib.Path they implement only necessary minimum of methods. The proposed PR moves this implementation into test.support. It also fixes some misuses of it.

I have named it SimplePath. Are there better ideas? PathLike was rejected due to possible confusion with os.PathLike.

[brettcannon]

FakePath? Otherwise SimplePath seems as good a name as any other one.

[serhiy-storchaka]

New changeset b21d155 by Serhiy Storchaka in branch 'master':
bpo-32964: Reuse a testing implementation of the path protocol in tests. (bpo-5930)
b21d155

[miss-islington]

New changeset a13b654 by Miss Islington (bot) in branch '3.7':
bpo-32964: Reuse a testing implementation of the path protocol in tests. (GH-5930)
a13b654

[serhiy-storchaka]

New changeset fbdd075 by Serhiy Storchaka in branch '3.6':
[3.6] bpo-32964: Reuse a testing implementation of the path protocol in tests. (GH-5930). (GH-5958)
fbdd075