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// Copyright 2016 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.
package collector
import (
"testing"
"github.com/godbus/dbus"
"github.com/prometheus/client_golang/prometheus"
)
type testLogindInterface struct{}
var testSeats = []string{"seat0", ""}
func (c *testLogindInterface) listSeats() ([]string, error) {
return testSeats, nil
}
func (c *testLogindInterface) listSessions() ([]logindSessionEntry, error) {
return []logindSessionEntry{
{
SessionID: "1",
UserID: 0,
UserName: "",
SeatID: "",
SessionObjectPath: dbus.ObjectPath("/org/freedesktop/login1/session/1"),
},
{
SessionID: "2",
UserID: 0,
UserName: "",
SeatID: "seat0",
SessionObjectPath: dbus.ObjectPath("/org/freedesktop/login1/session/2"),
},
}, nil
}
func (c *testLogindInterface) getSession(session logindSessionEntry) *logindSession {
sessions := map[dbus.ObjectPath]*logindSession{
dbus.ObjectPath("/org/freedesktop/login1/session/1"): {
seat: session.SeatID,
remote: "true",
sessionType: knownStringOrOther("tty", attrTypeValues),
class: knownStringOrOther("user", attrClassValues),
},
dbus.ObjectPath("/org/freedesktop/login1/session/2"): {
seat: session.SeatID,
remote: "false",
sessionType: knownStringOrOther("x11", attrTypeValues),
class: knownStringOrOther("greeter", attrClassValues),
},
}
return sessions[session.SessionObjectPath]
}
func TestLogindCollectorKnownStringOrOther(t *testing.T) {
known := []string{"foo", "bar"}
actual := knownStringOrOther("foo", known)
expected := "foo"
if actual != expected {
t.Errorf("knownStringOrOther failed: got %q, expected %q.", actual, expected)
}
actual = knownStringOrOther("baz", known)
expected = "other"
if actual != expected {
t.Errorf("knownStringOrOther failed: got %q, expected %q.", actual, expected)
}
}
func TestLogindCollectorCollectMetrics(t *testing.T) {
ch := make(chan prometheus.Metric)
go func() {
collectMetrics(ch, &testLogindInterface{})
close(ch)
}()
count := 0
for range ch {
count++
}
expected := len(testSeats) * len(attrRemoteValues) * len(attrTypeValues) * len(attrClassValues)
if count != expected {
t.Errorf("collectMetrics did not generate the expected number of metrics: got %d, expected %d.", count, expected)
}
}
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