update workflow

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.github/workflows/job_sync.yml

@@ -0,0 +1,94 @@
+name: sync
+
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: init
+      run: |
+        git config --global user.email "vtolstov <vtolstov@users.noreply.github.com>"
+        git config --global user.name "github-actions[bot]"
+        echo "machine git.unistack.org login vtolstov password ${{ secrets.TOKEN_GITEA }}" >> /root/.netrc
+        echo "machine github.com login vtolstov password ${{ secrets.TOKEN_GITHUB }}" >> /root/.netrc
+
+    - name: check master
+      id: check_master
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync master
+      if: steps.check_master.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch master --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track master upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream master
+        git push upstream master --progress
+        git push origin master --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v3
+      id: check_v3
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v3
+      if: steps.check_v3.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v3 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v3 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v3
+        git push upstream v3 --progress
+        git push origin v3 --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v4
+      id: check_v4
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v4
+      if: steps.check_v4.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v4 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v4 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v4
+        git push upstream v4 --progress
+        git push origin v4 --progress
+        cd ../
+        rm -rf repo

README.md

@@ -1,5 +1,5 @@
 # VictoriaMetrics
-![Coverage](https://img.shields.io/badge/Coverage-39.2%25-yellow)
+![Coverage](https://img.shields.io/badge/Coverage-46.9%25-yellow)
 
 Wrappers are a form of middleware that can be used with go-micro services. They can wrap both the Client and Server handlers. 
 This plugin implements the HandlerWrapper interface to provide automatic prometheus metric handling
@@ -22,3 +22,4 @@ When creating your service, add the wrapper like so.
     
     service.Init()
 ```
+

go.mod

@@ -1,16 +1,23 @@
-module go.unistack.org/micro-meter-victoriametrics/v3
+module go.unistack.org/micro-meter-victoriametrics/v4
 
-go 1.22
+go 1.23.0
 
-toolchain go1.23.2
+toolchain go1.24.4
 
 require (
-	go.unistack.org/metrics v0.0.1
-	go.unistack.org/micro/v3 v3.10.100
+	github.com/VictoriaMetrics/metrics v1.38.0
+	go.unistack.org/micro/v4 v4.1.19
 )
 
 require (
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/matoous/go-nanoid v1.5.1 // indirect
+	github.com/spf13/cast v1.8.0 // indirect
 	github.com/valyala/fastrand v1.1.0 // indirect
 	github.com/valyala/histogram v1.2.0 // indirect
-	golang.org/x/sys v0.27.0 // indirect
+	go.unistack.org/micro-proto/v4 v4.1.0 // indirect
+	golang.org/x/sys v0.33.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a // indirect
+	google.golang.org/grpc v1.72.0 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 )

go.sum

@@ -1,10 +1,48 @@
+github.com/VictoriaMetrics/metrics v1.38.0 h1:1d0dRgVH8Nnu8dKMfisKefPC3q7gqf3/odyO0quAvyA=
+github.com/VictoriaMetrics/metrics v1.38.0/go.mod h1:r7hveu6xMdUACXvB8TYdAj8WEsKzWB0EkpJN+RDtOf8=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/matoous/go-nanoid v1.5.1 h1:aCjdvTyO9LLnTIi0fgdXhOPPvOHjpXN6Ik9DaNjIct4=
+github.com/matoous/go-nanoid v1.5.1/go.mod h1:zyD2a71IubI24efhpvkJz+ZwfwagzgSO6UNiFsZKN7U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
+github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
+github.com/spf13/cast v1.8.0 h1:gEN9K4b8Xws4EX0+a0reLmhq8moKn7ntRlQYgjPeCDk=
+github.com/spf13/cast v1.8.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/valyala/fastrand v1.1.0 h1:f+5HkLW4rsgzdNoleUOB69hyT9IlD2ZQh9GyDMfb5G8=
 github.com/valyala/fastrand v1.1.0/go.mod h1:HWqCzkrkg6QXT8V2EXWvXCoow7vLwOFN002oeRzjapQ=
 github.com/valyala/histogram v1.2.0 h1:wyYGAZZt3CpwUiIb9AU/Zbllg1llXyrtApRS815OLoQ=
 github.com/valyala/histogram v1.2.0/go.mod h1:Hb4kBwb4UxsaNbbbh+RRz8ZR6pdodR57tzWUS3BUzXY=
-go.unistack.org/metrics v0.0.1 h1:sCnGO059ZccGC/D34iRH121eSk+7ci5+OY9cl5K7GKY=
-go.unistack.org/metrics v0.0.1/go.mod h1:1FY4R7EKJa9Oz2D6wlGScNerpl6igRs9Cx/3et4Rgs4=
-go.unistack.org/micro/v3 v3.10.100 h1:yWOaU0ImCGm5k5MUzlIobJUOr+KLfrR/BoDZvcHyKxM=
-go.unistack.org/micro/v3 v3.10.100/go.mod h1:YzMldzHN9Ei+zy5t/Psu7RUWDZwUfrNYiStSQtTz90g=
-golang.org/x/sys v0.27.0 h1:wBqf8DvsY9Y/2P8gAfPDEYNuS30J4lPHJxXSb/nJZ+s=
-golang.org/x/sys v0.27.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+go.unistack.org/micro-proto/v4 v4.1.0 h1:qPwL2n/oqh9RE3RTTDgt28XK3QzV597VugQPaw9lKUk=
+go.unistack.org/micro-proto/v4 v4.1.0/go.mod h1:ArmK7o+uFvxSY3dbJhKBBX4Pm1rhWdLEFf3LxBrMtec=
+go.unistack.org/micro/v4 v4.1.19 h1:LKpmSPYvX5B9AkFD7JqMU/U06v5yEWn2bsCG/YKZtZI=
+go.unistack.org/micro/v4 v4.1.19/go.mod h1:xleO2M5Yxh4s6I+RUcLrEpUjobefh+71ctrdIfn7TUs=
+golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
+golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
+golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a h1:51aaUVRocpvUOSQKM6Q7VuoaktNIaMCLuhZB6DKksq4=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250218202821-56aae31c358a/go.mod h1:uRxBH1mhmO8PGhU89cMcHaXKZqO+OfakD8QQO0oYwlQ=
+google.golang.org/grpc v1.72.0 h1:S7UkcVa60b5AAQTaO6ZKamFp1zMZSU0fGDK2WZLbBnM=
+google.golang.org/grpc v1.72.0/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

victoriametrics.go

@@ -4,8 +4,8 @@ import (
 	"io"
 	"time"
 
-	"go.unistack.org/metrics"
-	"go.unistack.org/micro/v3/meter"
+	"github.com/VictoriaMetrics/metrics"
+	"go.unistack.org/micro/v4/meter"
 )
 
 type victoriametricsMeter struct {
@@ -14,119 +14,115 @@ type victoriametricsMeter struct {
 	prometheusCompat bool
 }
 
-type prometheusCompatKey struct{}
-
-func PrometheusCompat(b bool) meter.Option {
-	return meter.SetOption(prometheusCompatKey{}, b)
-}
-
 func NewMeter(opts ...meter.Option) meter.Meter {
 	m := &victoriametricsMeter{set: metrics.NewSet(), opts: meter.NewOptions(opts...)}
-	if v, ok := m.opts.Context.Value(prometheusCompatKey{}).(bool); ok {
+	if v, ok := m.opts.Context.Value(prometheusCompatKey{}).(bool); ok && v {
 		m.prometheusCompat = v
 	}
 	return m
 }
 
-func (m *victoriametricsMeter) Name() string {
-	return m.opts.Name
+func (r *victoriametricsMeter) Name() string {
+	return r.opts.Name
 }
 
-func (m *victoriametricsMeter) Clone(opts ...meter.Option) meter.Meter {
-	options := m.opts
+func (r *victoriametricsMeter) Clone(opts ...meter.Option) meter.Meter {
+	options := r.opts
 	for _, o := range opts {
 		o(&options)
 	}
-	nm := &victoriametricsMeter{set: m.set, opts: options, prometheusCompat: m.prometheusCompat}
-	if v, ok := m.opts.Context.Value(prometheusCompatKey{}).(bool); ok {
+	m := &victoriametricsMeter{set: r.set, opts: options}
+	if v, ok := m.opts.Context.Value(prometheusCompatKey{}).(bool); ok && v {
 		m.prometheusCompat = v
 	}
-	return nm
+	return m
 }
 
-func (m *victoriametricsMeter) buildName(name string, labels ...string) string {
-	nl := len(m.opts.Labels) + len(labels)
+func (r *victoriametricsMeter) buildName(name string, labels ...string) string {
+	nl := len(r.opts.Labels) + len(labels)
 	if nl == 0 {
 		return name
 	}
 
 	nlabels := make([]string, 0, nl)
-	nlabels = append(nlabels, m.opts.Labels...)
+	nlabels = append(nlabels, r.opts.Labels...)
 	nlabels = append(nlabels, labels...)
 
 	return meter.BuildName(name, nlabels...)
 }
 
-func (m *victoriametricsMeter) Counter(name string, labels ...string) meter.Counter {
-	return m.set.GetOrCreateCounter(m.buildName(name, labels...))
+func (r *victoriametricsMeter) Counter(name string, labels ...string) meter.Counter {
+	return r.set.GetOrCreateCounter(r.buildName(name, labels...))
 }
 
-func (m *victoriametricsMeter) FloatCounter(name string, labels ...string) meter.FloatCounter {
-	return m.set.GetOrCreateFloatCounter(m.buildName(name, labels...))
+func (r *victoriametricsMeter) FloatCounter(name string, labels ...string) meter.FloatCounter {
+	return r.set.GetOrCreateFloatCounter(r.buildName(name, labels...))
 }
 
-func (m *victoriametricsMeter) Gauge(name string, f func() float64, labels ...string) meter.Gauge {
-	return m.set.GetOrCreateGauge(m.buildName(name, labels...), f)
+func (r *victoriametricsMeter) Gauge(name string, f func() float64, labels ...string) meter.Gauge {
+	return r.set.GetOrCreateGauge(r.buildName(name, labels...), f)
 }
 
-func (m *victoriametricsMeter) Histogram(name string, labels ...string) meter.Histogram {
-	if m.prometheusCompat {
-		return m.set.GetOrCreateCompatibleHistogram(m.buildName(name, labels...))
+func (r *victoriametricsMeter) Histogram(name string, labels ...string) meter.Histogram {
+	if r.prometheusCompat {
+		return r.set.GetOrCreatePrometheusHistogram(r.buildName(name, labels...))
 	}
-	return m.set.GetOrCreateHistogram(m.buildName(name, labels...))
+	return r.set.GetOrCreateHistogram(r.buildName(name, labels...))
 }
 
-func (m *victoriametricsMeter) Summary(name string, labels ...string) meter.Summary {
-	return m.set.GetOrCreateSummary(m.buildName(name, labels...))
+func (r *victoriametricsMeter) Summary(name string, labels ...string) meter.Summary {
+	return r.set.GetOrCreateSummary(r.buildName(name, labels...))
 }
 
-func (m *victoriametricsMeter) SummaryExt(name string, window time.Duration, quantiles []float64, labels ...string) meter.Summary {
-	return m.set.GetOrCreateSummaryExt(m.buildName(name, labels...), window, quantiles)
+func (r *victoriametricsMeter) SummaryExt(name string, window time.Duration, quantiles []float64, labels ...string) meter.Summary {
+	return r.set.GetOrCreateSummaryExt(r.buildName(name, labels...), window, quantiles)
 }
 
-func (m *victoriametricsMeter) Set(opts ...meter.Option) meter.Meter {
-	nm := &victoriametricsMeter{opts: m.opts}
-	for _, o := range opts {
-		o(&nm.opts)
-	}
-	nm.set = metrics.NewSet()
-	if v, ok := nm.opts.Context.Value(prometheusCompatKey{}).(bool); ok {
-		nm.prometheusCompat = v
-	}
-	return nm
-}
-
-func (m *victoriametricsMeter) Init(opts ...meter.Option) error {
+func (r *victoriametricsMeter) Set(opts ...meter.Option) meter.Meter {
+	m := &victoriametricsMeter{opts: r.opts, prometheusCompat: r.prometheusCompat}
 	for _, o := range opts {
 		o(&m.opts)
 	}
-	if v, ok := m.opts.Context.Value(prometheusCompatKey{}).(bool); ok {
-		m.prometheusCompat = v
+	m.set = metrics.NewSet()
+	return m
+}
+
+func (r *victoriametricsMeter) Init(opts ...meter.Option) error {
+	for _, o := range opts {
+		o(&r.opts)
+	}
+	if v, ok := r.opts.Context.Value(prometheusCompatKey{}).(bool); ok && v {
+		r.prometheusCompat = v
 	}
 	return nil
 }
 
-func (m *victoriametricsMeter) Write(w io.Writer, opts ...meter.Option) error {
-	options := m.opts
+func (r *victoriametricsMeter) Write(w io.Writer, opts ...meter.Option) error {
+	options := r.opts
 	for _, o := range opts {
 		o(&options)
 	}
 
-	m.set.WritePrometheus(w)
+	r.set.WritePrometheus(w)
 	if options.WriteProcessMetrics {
 		metrics.WriteProcessMetrics(w)
 	}
 	if options.WriteFDMetrics {
 		metrics.WriteFDMetrics(w)
 	}
-
 	return nil
 }
 
-func (m *victoriametricsMeter) Options() meter.Options {
-	return m.opts
+func (r *victoriametricsMeter) Options() meter.Options {
+	return r.opts
 }
 
-func (m *victoriametricsMeter) String() string {
+func (r *victoriametricsMeter) String() string {
 	return "victoriametrics"
 }
+
+type prometheusCompatKey struct{}
+
+func PrometheusCompat(b bool) meter.Option {
+	return meter.SetOption(prometheusCompatKey{}, b)
+}

victoriametrics_test.go

@@ -2,14 +2,32 @@ package victoriametrics
 
 import (
 	"bytes"
+	"context"
 	"testing"
+
+	"go.unistack.org/micro/v4/client"
+	"go.unistack.org/micro/v4/codec"
+	"go.unistack.org/micro/v4/meter"
 )
 
+func BenchmarkBuildName(b *testing.B) {
+	m := NewMeter(meter.Labels("pod", "xxx"))
+	if err := m.Init(); err != nil {
+		b.Fatal(err)
+	}
+	im := m.(*victoriametricsMeter)
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		name := im.buildName("micro_foo", "bar", "baz", "aaa", "b", "ccc", "d")
+		_ = name
+	}
+}
+
 func TestBuildName(t *testing.T) {
 	m := NewMeter()
 	im := m.(*victoriametricsMeter)
-	check := `micro_foo{micro_aaa="b",micro_bar="baz",micro_ccc="d"}`
-	name := im.buildName("micro_foo", "micro_bar", "baz", "micro_aaa", "b", "micro_ccc", "d")
+	check := `micro_foo{bar="baz",aaa="b",ccc="d"}`
+	name := im.buildName("micro_foo", "bar", "baz", "aaa", "b", "ccc", "d")
 	if name != check {
 		t.Fatalf("metric name error: %s != %s", name, check)
 	}
@@ -18,12 +36,24 @@ func TestBuildName(t *testing.T) {
 	cnt.Inc()
 }
 
-func TestPrometheusCompat(t *testing.T) {
-	m := NewMeter(PrometheusCompat(true))
-	m.Histogram("foo", "key", "val").Update(15)
+func TestWrapper(t *testing.T) {
+	m := NewMeter()
+	if err := m.Init(); err != nil {
+		t.Fatal(err)
+	}
+	ctx := context.Background()
 
+	c := client.NewClient(client.Meter(m))
+	if err := c.Init(); err != nil {
+		t.Fatal(err)
+	}
+	rsp := &codec.Frame{}
+	req := &codec.Frame{}
+	err := c.Call(ctx, c.NewRequest("svc2", "Service.Method", req), rsp)
+	_, _ = rsp, err
 	buf := bytes.NewBuffer(nil)
-
-	_ = m.Write(buf)
-	t.Logf("\n%s", buf.Bytes())
+	_ = m.Write(buf, meter.WriteProcessMetrics(false), meter.WriteFDMetrics(false))
+	if !bytes.Contains(buf.Bytes(), []byte(`micro_client_request_total{endpoint="Service.Method",status="failure",code="500"} 1`)) {
+		t.Fatalf("invalid metrics output: %s", buf.Bytes())
+	}
 }