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#!/usr/bin/env python
#
# Glances - An eye on your system
#
# SPDX-FileCopyrightText: 2024 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""Tests for the Load plugin."""
import json
import pytest
from glances.globals import WINDOWS
from glances.plugins.load import load_average, log_core, phys_core
@pytest.fixture
def load_plugin(glances_stats):
"""Return the Load plugin instance from glances_stats."""
return glances_stats.get_plugin('load')
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginBasics:
"""Test basic Load plugin functionality."""
def test_plugin_name(self, load_plugin):
"""Test plugin name is correctly set."""
assert load_plugin.plugin_name == 'load'
def test_plugin_is_enabled(self, load_plugin):
"""Test that the plugin is enabled by default."""
assert load_plugin.is_enabled() is True
def test_display_curse_enabled(self, load_plugin):
"""Test that curse display is enabled."""
assert load_plugin.display_curse is True
def test_history_items_defined(self, load_plugin):
"""Test that history items are properly defined."""
items = load_plugin.get_items_history_list()
assert items is not None
item_names = [item['name'] for item in items]
assert 'min1' in item_names
assert 'min5' in item_names
assert 'min15' in item_names
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginUpdate:
"""Test Load plugin update functionality."""
def test_update_returns_dict(self, load_plugin):
"""Test that update returns a dictionary."""
load_plugin.update()
stats = load_plugin.get_raw()
assert isinstance(stats, dict)
def test_update_contains_mandatory_keys(self, load_plugin):
"""Test that stats contain mandatory keys."""
load_plugin.update()
stats = load_plugin.get_raw()
mandatory_keys = ['min1', 'min5', 'min15', 'cpucore']
for key in mandatory_keys:
assert key in stats, f"Missing mandatory key: {key}"
def test_load_values_non_negative(self, load_plugin):
"""Test that load values are non-negative."""
load_plugin.update()
stats = load_plugin.get_raw()
for key in ['min1', 'min5', 'min15']:
if key in stats and stats[key] is not None:
assert stats[key] >= 0, f"{key} should be non-negative"
def test_cpucore_positive(self, load_plugin):
"""Test that CPU core count is positive."""
load_plugin.update()
stats = load_plugin.get_raw()
assert 'cpucore' in stats
assert stats['cpucore'] >= 1
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginViews:
"""Test Load plugin views functionality."""
def test_update_views_creates_views(self, load_plugin):
"""Test that update_views creates views dictionary."""
load_plugin.update()
load_plugin.update_views()
views = load_plugin.get_views()
assert isinstance(views, dict)
def test_views_contain_min15_decoration(self, load_plugin):
"""Test that views contain decoration for min15."""
load_plugin.update()
load_plugin.update_views()
views = load_plugin.get_views()
if views: # Views might be empty if no stats
assert 'min15' in views
assert 'decoration' in views['min15']
def test_views_contain_min5_decoration(self, load_plugin):
"""Test that views contain decoration for min5."""
load_plugin.update()
load_plugin.update_views()
views = load_plugin.get_views()
if views:
assert 'min5' in views
assert 'decoration' in views['min5']
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginJSON:
"""Test Load plugin JSON serialization."""
def test_get_stats_returns_json(self, load_plugin):
"""Test that get_stats returns valid JSON."""
load_plugin.update()
stats_json = load_plugin.get_stats()
parsed = json.loads(stats_json)
assert isinstance(parsed, dict)
def test_json_contains_expected_fields(self, load_plugin):
"""Test that JSON output contains expected fields."""
load_plugin.update()
stats_json = load_plugin.get_stats()
parsed = json.loads(stats_json)
expected_fields = ['min1', 'min5', 'min15', 'cpucore']
for field in expected_fields:
assert field in parsed
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginHistory:
"""Test Load plugin history functionality."""
def test_history_enable_check(self, load_plugin):
"""Test that history_enable returns a boolean."""
result = load_plugin.history_enable()
assert isinstance(result, bool)
def test_get_items_history_list(self, load_plugin):
"""Test that get_items_history_list returns the history items."""
items = load_plugin.get_items_history_list()
if items is not None:
assert isinstance(items, list)
item_names = [item['name'] for item in items]
assert 'min1' in item_names
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginReset:
"""Test Load plugin reset functionality."""
def test_reset_clears_stats(self, load_plugin):
"""Test that reset clears stats."""
load_plugin.update()
load_plugin.reset()
stats = load_plugin.get_raw()
assert stats == load_plugin.get_init_value()
def test_reset_views(self, load_plugin):
"""Test that reset_views clears views."""
load_plugin.update()
load_plugin.update_views()
load_plugin.reset_views()
assert load_plugin.get_views() == {}
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginFieldsDescription:
"""Test Load plugin fields description."""
def test_fields_description_exists(self, load_plugin):
"""Test that fields_description is defined."""
assert load_plugin.fields_description is not None
def test_mandatory_fields_described(self, load_plugin):
"""Test that mandatory fields have descriptions."""
mandatory_fields = ['min1', 'min5', 'min15', 'cpucore']
for field in mandatory_fields:
assert field in load_plugin.fields_description
def test_field_has_description(self, load_plugin):
"""Test that each field has a description."""
for field, info in load_plugin.fields_description.items():
assert 'description' in info, f"Field {field} missing description"
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginMsgCurse:
"""Test Load plugin curse message generation."""
def test_msg_curse_returns_list(self, load_plugin):
"""Test that msg_curse returns a list."""
load_plugin.update()
msg = load_plugin.msg_curse()
assert isinstance(msg, list)
def test_msg_curse_format(self, load_plugin):
"""Test that msg_curse returns properly formatted entries."""
load_plugin.update()
msg = load_plugin.msg_curse()
if msg:
for entry in msg:
assert isinstance(entry, dict)
assert 'msg' in entry
def test_msg_curse_structure(self, load_plugin):
"""Test msg_curse output structure when stats available."""
load_plugin.update()
stats = load_plugin.get_raw()
if stats and not load_plugin.is_disabled():
msg = load_plugin.msg_curse()
if msg:
assert len(msg) > 0
class TestLoadHelperFunctions:
"""Test Load plugin helper functions."""
def test_log_core_returns_int(self):
"""Test that log_core returns an integer."""
cores = log_core()
assert isinstance(cores, int)
assert cores >= 1
def test_phys_core_returns_int(self):
"""Test that phys_core returns an integer."""
cores = phys_core()
assert isinstance(cores, int)
assert cores >= 1
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
def test_load_average_returns_tuple(self):
"""Test that load_average returns a tuple."""
load = load_average()
if load is not None:
assert isinstance(load, tuple)
assert len(load) == 3
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
def test_load_average_values_non_negative(self):
"""Test that load_average values are non-negative."""
load = load_average()
if load is not None:
for value in load:
assert value >= 0
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
def test_load_average_percent_mode(self):
"""Test load_average in percent mode."""
load = load_average(percent=True)
if load is not None:
assert isinstance(load, tuple)
assert len(load) == 3
# Values can exceed 100% if load is high
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginAlerts:
"""Test Load plugin alert functionality."""
def test_alert_based_on_cpucore(self, load_plugin):
"""Test that alerts are calculated based on CPU cores."""
load_plugin.update()
stats = load_plugin.get_raw()
if 'cpucore' in stats and 'min15' in stats:
# Maximum is 100 * cpucore
alert = load_plugin.get_alert_log(stats['min15'], maximum=100 * stats['cpucore'])
assert alert is not None
@pytest.mark.skipif(WINDOWS, reason="Load average not available on Windows")
class TestLoadPluginExport:
"""Test Load plugin export functionality."""
def test_get_export_returns_dict(self, load_plugin):
"""Test that get_export returns a dict."""
load_plugin.update()
export = load_plugin.get_export()
assert isinstance(export, dict)
def test_export_equals_raw(self, load_plugin):
"""Test that export equals raw stats by default."""
load_plugin.update()
assert load_plugin.get_export() == load_plugin.get_raw()
def test_export_contains_load_values_when_available(self, load_plugin):
"""Test that export contains load values when available."""
load_plugin.update()
export = load_plugin.get_export()
if export:
assert 'min1' in export
assert 'min5' in export
assert 'min15' in export
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