mirror of
https://github.com/nicolargo/glances.git
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85 lines
3.0 KiB
Python
Executable File
85 lines
3.0 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Glances - An eye on your system
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#
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# SPDX-FileCopyrightText: 2026 Nicolas Hennion <nicolas@nicolargo.com>
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#
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# SPDX-License-Identifier: LGPL-3.0-only
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#
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"""The container CPU and MEM views carry the decoration both front ends read.
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The curses view reads these through get_views(item=..., key='cpu'|'mem',
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option='decoration'), and plugin-containers.vue reads the same two entries. A
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missing decoration is silent in both: get_views() answers 'DEFAULT' for a key it
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cannot find, so an over-threshold container simply renders in plain text.
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"""
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import os
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import pytest
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from glances.config import Config
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from glances.plugins.containers import ContainersPlugin
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def container(name, cpu_total, memory_usage, limit=1000):
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return {
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'name': name,
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'id': name,
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'engine': 'docker',
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'status': 'running',
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'cpu': {'total': cpu_total},
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'memory': {'usage': memory_usage, 'limit': limit},
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}
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@pytest.fixture
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def plugin(tmp_path):
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"""A plugin with explicit container thresholds, so the alerts are predictable."""
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config_file = tmp_path / 'glances.conf'
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config_file.write_text(
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# Keys are section-relative: [containers] cpu_careful becomes the
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# containers_cpu_careful limit.
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'[containers]\n'
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'cpu_careful=50\n'
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'cpu_warning=70\n'
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'cpu_critical=90\n'
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'mem_careful=50\n'
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'mem_warning=70\n'
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'mem_critical=90\n',
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encoding='utf-8',
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)
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return ContainersPlugin(args=None, config=Config(config_dir=os.fspath(config_file)))
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class TestContainerDecorationViews:
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def test_cpu_and_mem_views_exist_for_each_container(self, plugin):
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plugin.stats = [container('quiet', 5.0, 50), container('busy', 95.0, 950)]
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plugin.update_views()
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for name in ('quiet', 'busy'):
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assert name in plugin.views, f'{name} has no view entry'
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for field in ('cpu', 'mem'):
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assert field in plugin.views[name], f'{name} has no {field} view'
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assert 'decoration' in plugin.views[name][field]
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def test_a_container_over_its_threshold_is_not_left_plain(self, plugin):
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plugin.stats = [container('quiet', 5.0, 50), container('busy', 95.0, 950)]
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plugin.update_views()
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# The point of the pair: something above the critical threshold must not
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# come out as DEFAULT, which is what both front ends render as no colour.
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assert plugin.views['busy']['cpu']['decoration'] != 'DEFAULT'
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assert plugin.views['busy']['mem']['decoration'] != 'DEFAULT'
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assert plugin.views['quiet']['cpu']['decoration'] == 'OK'
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def test_the_view_is_keyed_by_container_name(self, plugin):
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# Both readers index by name: curses passes item=container['name'], and
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# the WebUI does this.views[container.name]. get_key() says 'name'; this
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# pins that the views dict actually agrees.
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assert plugin.get_key() == 'name'
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plugin.stats = [container('named-thing', 10.0, 100)]
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plugin.update_views()
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assert 'named-thing' in plugin.views
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