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community.general/tests/unit/plugins/module_utils/test_module_helper.py
Alexei Znamensky e3fcc7de2a
Adding module_utils/module_helper.py + big revamp in xfconf.py to use it (#1322)
* Big revamp in xfconf.py

- added plugin/module_utils/module_helper.py
  - scaffold class for writing modules, beyond standard AnsibleModule
  - automatic capture of exceptions
  - easier dependency testing
  - StateMixin to easily handle different behaviours for 'state' param
  - CmdMixin to easily run external commands
- adapted test_xfconf.py
  - the args for run_command are now lists instead of a string
  - value and previous_value were not being tested before (because xfconf wasn't filling results - see below)
  - added more tests: setting value to previous_value, getting non-existent property
- rewritten xfconf module, keeping the same results
  - original module posted results as ansible_facts, this version still does it for compatibility, but also adds to the module result

* Added suggestions from the PR

* Added russoz as maintainer for the module_utils/module_helper.py file

* Formatting using printf-style requires special treatment

Strings not containing substitution tokens must work as well.

* Tidied up variables in module definition

* Tests with ArgFormat and DependencyCtxMgr

* pytest parameters must be in the same order, it seems

* improved testing for the DependencyCtxMgr

* fixed test for older pythons

* Moved changed property to improve readability

* Added testcase for state: absent and adjusted xfconf after it

* Fixed param name environ_update in run_command()

* added changelog fragment

* fixed tests after run_command param change
2020-11-20 11:27:53 +01:00

84 lines
3.4 KiB
Python

# -*- coding: utf-8 -*-
# (c) 2020, Alexei Znamensky <russoz@gmail.com>
# Copyright (c) 2020 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import pytest
from ansible_collections.community.general.plugins.module_utils.module_helper import (
ArgFormat, DependencyCtxMgr, ModuleHelper
)
def single_lambda_2star(x, y, z):
return ["piggies=[{0},{1},{2}]".format(x, y, z)]
ARG_FORMATS = dict(
simple_boolean_true=("--superflag", ArgFormat.BOOLEAN, 0, True, ["--superflag"]),
simple_boolean_false=("--superflag", ArgFormat.BOOLEAN, 0, False, []),
single_printf=("--param=%s", ArgFormat.PRINTF, 0, "potatoes", ["--param=potatoes"]),
single_printf_no_substitution=("--param", ArgFormat.PRINTF, 0, "potatoes", ["--param"]),
multiple_printf=(["--param", "free-%s"], ArgFormat.PRINTF, 0, "potatoes", ["--param", "free-potatoes"]),
single_format=("--param={0}", ArgFormat.FORMAT, 0, "potatoes", ["--param=potatoes"]),
single_format_no_substitution=("--param", ArgFormat.FORMAT, 0, "potatoes", ["--param"]),
multiple_format=(["--param", "free-{0}"], ArgFormat.FORMAT, 0, "potatoes", ["--param", "free-potatoes"]),
single_lambda_0star=((lambda v: ["piggies=[{0},{1},{2}]".format(v[0], v[1], v[2])]),
None, 0, ['a', 'b', 'c'], ["piggies=[a,b,c]"]),
single_lambda_1star=((lambda a, b, c: ["piggies=[{0},{1},{2}]".format(a, b, c)]),
None, 1, ['a', 'b', 'c'], ["piggies=[a,b,c]"]),
single_lambda_2star=(single_lambda_2star, None, 2, dict(z='c', x='a', y='b'), ["piggies=[a,b,c]"])
)
ARG_FORMATS_IDS = sorted(ARG_FORMATS.keys())
@pytest.mark.parametrize('fmt, style, stars, value, expected',
(ARG_FORMATS[tc] for tc in ARG_FORMATS_IDS),
ids=ARG_FORMATS_IDS)
def test_arg_format(fmt, style, stars, value, expected):
af = ArgFormat('name', fmt, style, stars)
actual = af.to_text(value)
print("formatted string = {0}".format(actual))
assert actual == expected
ARG_FORMATS_FAIL = dict(
int_fmt=(3, None, 0, "", [""]),
bool_fmt=(True, None, 0, "", [""]),
)
ARG_FORMATS_FAIL_IDS = sorted(ARG_FORMATS_FAIL.keys())
@pytest.mark.parametrize('fmt, style, stars, value, expected',
(ARG_FORMATS_FAIL[tc] for tc in ARG_FORMATS_FAIL_IDS),
ids=ARG_FORMATS_FAIL_IDS)
def test_arg_format_fail(fmt, style, stars, value, expected):
with pytest.raises(TypeError):
af = ArgFormat('name', fmt, style, stars)
actual = af.to_text(value)
print("formatted string = {0}".format(actual))
def test_dependency_ctxmgr():
ctx = DependencyCtxMgr("POTATOES", "Potatoes must be installed")
with ctx:
import potatoes_that_will_never_be_there
print("POTATOES: ctx.text={0}".format(ctx.text))
assert ctx.text == "Potatoes must be installed"
assert not ctx.has_it
ctx = DependencyCtxMgr("POTATOES2")
with ctx:
import potatoes_that_will_never_be_there_again
assert not ctx.has_it
print("POTATOES2: ctx.text={0}".format(ctx.text))
assert ctx.text.startswith("No module named")
assert "potatoes_that_will_never_be_there_again" in ctx.text
ctx = DependencyCtxMgr("TYPING")
with ctx:
import sys
assert ctx.has_it