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// Copyright 2015 The Prometheus Authors
// 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.
//go:build !nosystemd
// +build !nosystemd
package collector
import (
"io"
"log/slog"
"regexp"
"testing"
"github.com/coreos/go-systemd/v22/dbus"
)
// Creates mock UnitLists
func getUnitListFixtures() [][]unit {
fixture1 := []unit{
{
UnitStatus: dbus.UnitStatus{
Name: "foo",
Description: "foo desc",
LoadState: "loaded",
ActiveState: "active",
SubState: "running",
Followed: "",
Path: "/org/freedesktop/systemd1/unit/foo",
JobId: 0,
JobType: "",
JobPath: "/",
},
},
{
UnitStatus: dbus.UnitStatus{
Name: "bar",
Description: "bar desc",
LoadState: "not-found",
ActiveState: "inactive",
SubState: "dead",
Followed: "",
Path: "/org/freedesktop/systemd1/unit/bar",
JobId: 0,
JobType: "",
JobPath: "/",
},
},
{
UnitStatus: dbus.UnitStatus{
Name: "foobar",
Description: "bar desc",
LoadState: "not-found",
ActiveState: "inactive",
SubState: "dead",
Followed: "",
Path: "/org/freedesktop/systemd1/unit/bar",
JobId: 0,
JobType: "",
JobPath: "/",
},
},
{
UnitStatus: dbus.UnitStatus{
Name: "baz",
Description: "bar desc",
LoadState: "not-found",
ActiveState: "inactive",
SubState: "dead",
Followed: "",
Path: "/org/freedesktop/systemd1/unit/bar",
JobId: 0,
JobType: "",
JobPath: "/",
},
},
}
fixture2 := []unit{}
return [][]unit{fixture1, fixture2}
}
func TestSystemdIgnoreFilter(t *testing.T) {
fixtures := getUnitListFixtures()
includePattern := regexp.MustCompile("^foo$")
excludePattern := regexp.MustCompile("^bar$")
filtered := filterUnits(fixtures[0], includePattern, excludePattern, slog.New(slog.NewTextHandler(io.Discard, nil)))
for _, unit := range filtered {
if excludePattern.MatchString(unit.Name) || !includePattern.MatchString(unit.Name) {
t.Error(unit.Name, "should not be in the filtered list")
}
}
}
func TestSystemdIgnoreFilterDefaultKeepsAll(t *testing.T) {
logger := slog.New(slog.NewTextHandler(io.Discard, nil))
c, err := NewSystemdCollector(logger)
if err != nil {
t.Fatal(err)
}
fixtures := getUnitListFixtures()
collector := c.(*systemdCollector)
filtered := filterUnits(fixtures[0], collector.systemdUnitIncludePattern, collector.systemdUnitExcludePattern, logger)
// Adjust fixtures by 3 "not-found" units.
if len(filtered) != len(fixtures[0])-3 {
t.Error("Default filters removed units")
}
}
func TestSystemdSummary(t *testing.T) {
fixtures := getUnitListFixtures()
summary := summarizeUnits(fixtures[0])
for _, state := range unitStatesName {
if state == "inactive" {
testSummaryHelper(t, state, summary[state], 3.0)
} else if state == "active" {
testSummaryHelper(t, state, summary[state], 1.0)
} else {
testSummaryHelper(t, state, summary[state], 0.0)
}
}
}
func testSummaryHelper(t *testing.T, state string, actual float64, expected float64) {
if actual != expected {
t.Errorf("Summary mode didn't count %s jobs correctly. Actual: %f, expected: %f", state, actual, expected)
}
}
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