104 lines
3.0 KiB
Go
104 lines
3.0 KiB
Go
// Copyright 2018 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.
|
|
|
|
// +build linux
|
|
|
|
package prometheus
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"os"
|
|
"regexp"
|
|
"testing"
|
|
|
|
"github.com/prometheus/common/expfmt"
|
|
"github.com/prometheus/procfs"
|
|
|
|
dto "github.com/prometheus/client_model/go"
|
|
)
|
|
|
|
func TestProcessCollector(t *testing.T) {
|
|
if _, err := procfs.Self(); err != nil {
|
|
t.Skipf("skipping TestProcessCollector, procfs not available: %s", err)
|
|
}
|
|
|
|
registry := NewRegistry()
|
|
if err := registry.Register(NewProcessCollector(ProcessCollectorOpts{})); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := registry.Register(NewProcessCollector(ProcessCollectorOpts{
|
|
PidFn: func() (int, error) { return os.Getpid(), nil },
|
|
Namespace: "foobar",
|
|
ReportErrors: true, // No errors expected, just to see if none are reported.
|
|
})); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
mfs, err := registry.Gather()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
for _, mf := range mfs {
|
|
if _, err := expfmt.MetricFamilyToText(&buf, mf); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
for _, re := range []*regexp.Regexp{
|
|
regexp.MustCompile("\nprocess_cpu_seconds_total [0-9]"),
|
|
regexp.MustCompile("\nprocess_max_fds [1-9]"),
|
|
regexp.MustCompile("\nprocess_open_fds [1-9]"),
|
|
regexp.MustCompile("\nprocess_virtual_memory_max_bytes (-1|[1-9])"),
|
|
regexp.MustCompile("\nprocess_virtual_memory_bytes [1-9]"),
|
|
regexp.MustCompile("\nprocess_resident_memory_bytes [1-9]"),
|
|
regexp.MustCompile("\nprocess_start_time_seconds [0-9.]{10,}"),
|
|
regexp.MustCompile("\nfoobar_process_cpu_seconds_total [0-9]"),
|
|
regexp.MustCompile("\nfoobar_process_max_fds [1-9]"),
|
|
regexp.MustCompile("\nfoobar_process_open_fds [1-9]"),
|
|
regexp.MustCompile("\nfoobar_process_virtual_memory_max_bytes (-1|[1-9])"),
|
|
regexp.MustCompile("\nfoobar_process_virtual_memory_bytes [1-9]"),
|
|
regexp.MustCompile("\nfoobar_process_resident_memory_bytes [1-9]"),
|
|
regexp.MustCompile("\nfoobar_process_start_time_seconds [0-9.]{10,}"),
|
|
} {
|
|
if !re.Match(buf.Bytes()) {
|
|
t.Errorf("want body to match %s\n%s", re, buf.String())
|
|
}
|
|
}
|
|
|
|
brokenProcessCollector := NewProcessCollector(ProcessCollectorOpts{
|
|
PidFn: func() (int, error) { return 0, errors.New("boo") },
|
|
ReportErrors: true,
|
|
})
|
|
|
|
ch := make(chan Metric)
|
|
go func() {
|
|
brokenProcessCollector.Collect(ch)
|
|
close(ch)
|
|
}()
|
|
n := 0
|
|
for m := range ch {
|
|
n++
|
|
pb := &dto.Metric{}
|
|
err := m.Write(pb)
|
|
if err == nil {
|
|
t.Error("metric collected from broken process collector is unexpectedly valid")
|
|
}
|
|
}
|
|
if n != 1 {
|
|
t.Errorf("%d metrics collected, want 1", n)
|
|
}
|
|
}
|