node_exporter/collector/diskstats_linux_test.go
Paul Gier e8d8199072 Update diskstats for linux kernel 4.19 (#1109)
The format of /proc/diskstats is changing in linux-4.19 to include some
additional fields.  See: https://www.kernel.org/doc/Documentation/iostats.txt

* collector/diskstats: use constants for some hard coded strings
* collector/diskstats: update diskstats for linux-4.19
* collector/diskstats: remove kernel doc url from individual metrics

Signed-off-by: Paul Gier <pgier@redhat.com>
2018-10-15 17:24:28 +02:00

45 lines
1.2 KiB
Go

// 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.
package collector
import (
"os"
"testing"
)
func TestDiskStats(t *testing.T) {
file, err := os.Open("fixtures/proc/diskstats")
if err != nil {
t.Fatal(err)
}
defer file.Close()
diskStats, err := parseDiskStats(file)
if err != nil {
t.Fatal(err)
}
if want, got := "25353629", diskStats["sda4"][0]; want != got {
t.Errorf("want diskstats sda4 %s, got %s", want, got)
}
if want, got := "68", diskStats["mmcblk0p2"][10]; want != got {
t.Errorf("want diskstats mmcblk0p2 %s, got %s", want, got)
}
if want, got := "11130", diskStats["sdb"][14]; want != got {
t.Errorf("want diskstats sdb %s, got %s", want, got)
}
}