node_exporter/collector/xfrm_test.go

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// Copyright 2023 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 !noxfrm
// +build !noxfrm
package collector
import (
"fmt"
"io"
"log/slog"
"strings"
"testing"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/testutil"
)
type testXfrmCollector struct {
xc Collector
}
func (c testXfrmCollector) Collect(ch chan<- prometheus.Metric) {
c.xc.Update(ch)
}
func (c testXfrmCollector) Describe(ch chan<- *prometheus.Desc) {
prometheus.DescribeByCollect(c, ch)
}
func TestXfrmStats(t *testing.T) {
testcase := `# HELP node_xfrm_acquire_error_packets_total State hasnt been fully acquired before use
# TYPE node_xfrm_acquire_error_packets_total counter
node_xfrm_acquire_error_packets_total 24532
# HELP node_xfrm_fwd_hdr_error_packets_total Forward routing of a packet is not allowed
# TYPE node_xfrm_fwd_hdr_error_packets_total counter
node_xfrm_fwd_hdr_error_packets_total 6654
# HELP node_xfrm_in_buffer_error_packets_total No buffer is left
# TYPE node_xfrm_in_buffer_error_packets_total counter
node_xfrm_in_buffer_error_packets_total 2
# HELP node_xfrm_in_error_packets_total All errors not matched by other
# TYPE node_xfrm_in_error_packets_total counter
node_xfrm_in_error_packets_total 1
# HELP node_xfrm_in_hdr_error_packets_total Header error
# TYPE node_xfrm_in_hdr_error_packets_total counter
node_xfrm_in_hdr_error_packets_total 4
# HELP node_xfrm_in_no_pols_packets_total No policy is found for states e.g. Inbound SAs are correct but no SP is found
# TYPE node_xfrm_in_no_pols_packets_total counter
node_xfrm_in_no_pols_packets_total 65432
# HELP node_xfrm_in_no_states_packets_total No state is found i.e. Either inbound SPI, address, or IPsec protocol at SA is wrong
# TYPE node_xfrm_in_no_states_packets_total counter
node_xfrm_in_no_states_packets_total 3
# HELP node_xfrm_in_pol_block_packets_total Policy discards
# TYPE node_xfrm_in_pol_block_packets_total counter
node_xfrm_in_pol_block_packets_total 100
# HELP node_xfrm_in_pol_error_packets_total Policy error
# TYPE node_xfrm_in_pol_error_packets_total counter
node_xfrm_in_pol_error_packets_total 10000
# HELP node_xfrm_in_state_expired_packets_total State is expired
# TYPE node_xfrm_in_state_expired_packets_total counter
node_xfrm_in_state_expired_packets_total 7
# HELP node_xfrm_in_state_invalid_packets_total State is invalid
# TYPE node_xfrm_in_state_invalid_packets_total counter
node_xfrm_in_state_invalid_packets_total 55555
# HELP node_xfrm_in_state_mismatch_packets_total State has mismatch option e.g. UDP encapsulation type is mismatch
# TYPE node_xfrm_in_state_mismatch_packets_total counter
node_xfrm_in_state_mismatch_packets_total 23451
# HELP node_xfrm_in_state_mode_error_packets_total Transformation mode specific error
# TYPE node_xfrm_in_state_mode_error_packets_total counter
node_xfrm_in_state_mode_error_packets_total 100
# HELP node_xfrm_in_state_proto_error_packets_total Transformation protocol specific error e.g. SA key is wrong
# TYPE node_xfrm_in_state_proto_error_packets_total counter
node_xfrm_in_state_proto_error_packets_total 40
# HELP node_xfrm_in_state_seq_error_packets_total Sequence error i.e. Sequence number is out of window
# TYPE node_xfrm_in_state_seq_error_packets_total counter
node_xfrm_in_state_seq_error_packets_total 6000
# HELP node_xfrm_in_tmpl_mismatch_packets_total No matching template for states e.g. Inbound SAs are correct but SP rule is wrong
# TYPE node_xfrm_in_tmpl_mismatch_packets_total counter
node_xfrm_in_tmpl_mismatch_packets_total 51
# HELP node_xfrm_out_bundle_check_error_packets_total Bundle check error
# TYPE node_xfrm_out_bundle_check_error_packets_total counter
node_xfrm_out_bundle_check_error_packets_total 555
# HELP node_xfrm_out_bundle_gen_error_packets_total Bundle generation error
# TYPE node_xfrm_out_bundle_gen_error_packets_total counter
node_xfrm_out_bundle_gen_error_packets_total 43321
# HELP node_xfrm_out_error_packets_total All errors which is not matched others
# TYPE node_xfrm_out_error_packets_total counter
node_xfrm_out_error_packets_total 1e+06
# HELP node_xfrm_out_no_states_packets_total No state is found
# TYPE node_xfrm_out_no_states_packets_total counter
node_xfrm_out_no_states_packets_total 869
# HELP node_xfrm_out_pol_block_packets_total Policy discards
# TYPE node_xfrm_out_pol_block_packets_total counter
node_xfrm_out_pol_block_packets_total 43456
# HELP node_xfrm_out_pol_dead_packets_total Policy is dead
# TYPE node_xfrm_out_pol_dead_packets_total counter
node_xfrm_out_pol_dead_packets_total 7656
# HELP node_xfrm_out_pol_error_packets_total Policy error
# TYPE node_xfrm_out_pol_error_packets_total counter
node_xfrm_out_pol_error_packets_total 1454
# HELP node_xfrm_out_state_expired_packets_total State is expired
# TYPE node_xfrm_out_state_expired_packets_total counter
node_xfrm_out_state_expired_packets_total 565
# HELP node_xfrm_out_state_invalid_packets_total State is invalid, perhaps expired
# TYPE node_xfrm_out_state_invalid_packets_total counter
node_xfrm_out_state_invalid_packets_total 28765
# HELP node_xfrm_out_state_mode_error_packets_total Transformation mode specific error
# TYPE node_xfrm_out_state_mode_error_packets_total counter
node_xfrm_out_state_mode_error_packets_total 8
# HELP node_xfrm_out_state_proto_error_packets_total Transformation protocol specific error
# TYPE node_xfrm_out_state_proto_error_packets_total counter
node_xfrm_out_state_proto_error_packets_total 4542
# HELP node_xfrm_out_state_seq_error_packets_total Sequence error i.e. Sequence number overflow
# TYPE node_xfrm_out_state_seq_error_packets_total counter
node_xfrm_out_state_seq_error_packets_total 543
`
*procPath = "fixtures/proc"
logger := slog.New(slog.NewTextHandler(io.Discard, nil))
c, err := NewXfrmCollector(logger)
if err != nil {
t.Fatal(err)
}
reg := prometheus.NewRegistry()
reg.MustRegister(&testXfrmCollector{xc: c})
sink := make(chan prometheus.Metric)
go func() {
err = c.Update(sink)
if err != nil {
panic(fmt.Errorf("failed to update collector: %s", err))
}
close(sink)
}()
err = testutil.GatherAndCompare(reg, strings.NewReader(testcase))
if err != nil {
t.Fatal(err)
}
}