sunbeam-charms/ops-sunbeam/tests/unit_tests/test_templating.py
Liam Young 0fe5f7dfb4 Add ops.scenario tests
Add ops.scenario tests. This allows each charm class to be easily
tested with different permutations of missing/incomplete/complete
relations.

This is a starting point for using ops.scenario, additional
tests should include: examining rendered files, peer relation,
test secrets events etc

Change-Id: I8ebdad250d7cb169c3c0d72858e0582000d98b6e
2023-09-19 06:35:29 +00:00

83 lines
2.6 KiB
Python

# Copyright 2021 Canonical Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Test ops_sunbeam.templating."""
import sys
from io import (
BytesIO,
TextIOWrapper,
)
import jinja2
import mock
sys.path.append("lib") # noqa
sys.path.append("src") # noqa
import ops_sunbeam.core as sunbeam_core
import ops_sunbeam.templating as sunbeam_templating
import ops_sunbeam.test_utils as test_utils
class TestTemplating(test_utils.CharmTestCase):
"""Tests for ops_sunbeam.templating.."""
PATCHES = []
def setUp(self) -> None:
"""Charm test class setup."""
super().setUp(sunbeam_templating, self.PATCHES)
@mock.patch("jinja2.FileSystemLoader")
def test_render(self, fs_loader: "jinja2.FileSystemLoader") -> None:
"""Check rendering templates."""
container_mock = mock.MagicMock()
config = sunbeam_core.ContainerConfigFile(
"/tmp/testfile.txt", "myuser", "mygrp"
)
fs_loader.return_value = jinja2.DictLoader(
{"testfile.txt": "debug = {{ debug }}"}
)
sunbeam_templating.sidecar_config_render(
container_mock, config, "/tmp/templates", {"debug": True}
)
container_mock.push.assert_called_once_with(
"/tmp/testfile.txt",
"debug = True",
user="myuser",
group="mygrp",
permissions=None,
)
@mock.patch("jinja2.FileSystemLoader")
def test_render_no_change(
self, fs_loader: "jinja2.FileSystemLoader"
) -> None:
"""Check rendering template with no content change."""
container_mock = mock.MagicMock()
container_mock.pull.return_value = TextIOWrapper(
BytesIO(b"debug = True")
)
config = sunbeam_core.ContainerConfigFile(
"/tmp/testfile.txt", "myuser", "mygrp"
)
fs_loader.return_value = jinja2.DictLoader(
{"testfile.txt": "debug = {{ debug }}"}
)
sunbeam_templating.sidecar_config_render(
container_mock, config, "/tmp/templates", {"debug": True}
)
self.assertFalse(container_mock.push.called)