mirror of
https://github.com/prometheus/node_exporter.git
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124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package collector
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import (
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"regexp"
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"testing"
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"github.com/coreos/go-systemd/dbus"
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"github.com/prometheus/client_golang/prometheus"
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)
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// Creates mock UnitLists
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func getUnitListFixtures() [][]dbus.UnitStatus {
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fixture1 := []dbus.UnitStatus{
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dbus.UnitStatus{
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Name: "foo",
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Description: "foo desc",
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LoadState: "loaded",
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ActiveState: "active",
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SubState: "running",
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Followed: "",
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Path: "/org/freedesktop/systemd1/unit/foo",
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JobId: 0,
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JobType: "",
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JobPath: "/",
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},
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dbus.UnitStatus{
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Name: "bar",
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Description: "bar desc",
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LoadState: "not-found",
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ActiveState: "inactive",
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SubState: "dead",
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Followed: "",
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Path: "/org/freedesktop/systemd1/unit/bar",
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JobId: 0,
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JobType: "",
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JobPath: "/",
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},
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dbus.UnitStatus{
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Name: "foobar",
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Description: "bar desc",
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LoadState: "not-found",
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ActiveState: "inactive",
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SubState: "dead",
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Followed: "",
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Path: "/org/freedesktop/systemd1/unit/bar",
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JobId: 0,
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JobType: "",
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JobPath: "/",
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},
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dbus.UnitStatus{
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Name: "baz",
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Description: "bar desc",
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LoadState: "not-found",
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ActiveState: "inactive",
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SubState: "dead",
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Followed: "",
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Path: "/org/freedesktop/systemd1/unit/bar",
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JobId: 0,
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JobType: "",
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JobPath: "/",
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},
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}
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fixture2 := []dbus.UnitStatus{}
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return [][]dbus.UnitStatus{fixture1, fixture2}
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}
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func TestSystemdCollectorDoesntCrash(t *testing.T) {
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c, err := NewSystemdCollector()
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if err != nil {
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t.Fatal(err)
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}
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sink := make(chan prometheus.Metric)
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go func() {
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for {
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<-sink
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}
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}()
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fixtures := getUnitListFixtures()
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collector := (c).(*systemdCollector)
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for _, units := range fixtures {
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collector.collectUnitStatusMetrics(sink, units)
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}
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}
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func TestSystemdIgnoreFilter(t *testing.T) {
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fixtures := getUnitListFixtures()
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whitelistPattern := regexp.MustCompile("foo")
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blacklistPattern := regexp.MustCompile("bar")
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filtered := filterUnits(fixtures[0], whitelistPattern, blacklistPattern)
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for _, unit := range filtered {
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if blacklistPattern.MatchString(unit.Name) || !whitelistPattern.MatchString(unit.Name) {
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t.Error(unit.Name, "should not be in the filtered list")
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}
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}
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}
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func TestSystemdIgnoreFilterDefaultKeepsAll(t *testing.T) {
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c, err := NewSystemdCollector()
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if err != nil {
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t.Fatal(err)
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}
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fixtures := getUnitListFixtures()
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collector := c.(*systemdCollector)
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filtered := filterUnits(fixtures[0], collector.unitWhitelistPattern, collector.unitBlacklistPattern)
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if len(filtered) != len(fixtures[0]) {
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t.Error("Default filters removed units")
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}
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}
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