prometheus/tracing/tracing_test.go
SuperQ d91ebffb30
Update deprecated otel functions
Use new `noop.NewTracerProvider` function.

Signed-off-by: SuperQ <superq@gmail.com>
2023-12-07 15:50:21 +01:00

136 lines
3.8 KiB
Go

// Copyright 2021 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 tracing
import (
"testing"
"github.com/go-kit/log"
config_util "github.com/prometheus/common/config"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/trace/noop"
"github.com/prometheus/prometheus/config"
)
func TestInstallingNewTracerProvider(t *testing.T) {
tpBefore := otel.GetTracerProvider()
m := NewManager(log.NewNopLogger())
cfg := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientGRPC,
},
}
require.NoError(t, m.ApplyConfig(&cfg))
require.NotEqual(t, tpBefore, otel.GetTracerProvider())
}
func TestReinstallingTracerProvider(t *testing.T) {
m := NewManager(log.NewNopLogger())
cfg := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientGRPC,
Headers: map[string]string{"foo": "bar"},
},
}
require.NoError(t, m.ApplyConfig(&cfg))
tpFirstConfig := otel.GetTracerProvider()
// Trying to apply the same config should not reinstall provider.
require.NoError(t, m.ApplyConfig(&cfg))
require.Equal(t, tpFirstConfig, otel.GetTracerProvider())
cfg2 := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientHTTP,
Headers: map[string]string{"bar": "foo"},
},
}
require.NoError(t, m.ApplyConfig(&cfg2))
require.NotEqual(t, tpFirstConfig, otel.GetTracerProvider())
tpSecondConfig := otel.GetTracerProvider()
// Setting previously unset option should reinstall provider.
cfg2.TracingConfig.Compression = "gzip"
require.NoError(t, m.ApplyConfig(&cfg2))
require.NotEqual(t, tpSecondConfig, otel.GetTracerProvider())
}
func TestReinstallingTracerProviderWithTLS(t *testing.T) {
m := NewManager(log.NewNopLogger())
cfg := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientGRPC,
TLSConfig: config_util.TLSConfig{
CAFile: "testdata/ca.cer",
},
},
}
require.NoError(t, m.ApplyConfig(&cfg))
tpFirstConfig := otel.GetTracerProvider()
// Trying to apply the same config with TLS should reinstall provider.
require.NoError(t, m.ApplyConfig(&cfg))
require.NotEqual(t, tpFirstConfig, otel.GetTracerProvider())
}
func TestUninstallingTracerProvider(t *testing.T) {
m := NewManager(log.NewNopLogger())
cfg := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientGRPC,
},
}
require.NoError(t, m.ApplyConfig(&cfg))
require.NotEqual(t, noop.NewTracerProvider(), otel.GetTracerProvider())
// Uninstall by passing empty config.
cfg2 := config.Config{
TracingConfig: config.TracingConfig{},
}
require.NoError(t, m.ApplyConfig(&cfg2))
// Make sure we get a no-op tracer provider after uninstallation.
require.Equal(t, noop.NewTracerProvider(), otel.GetTracerProvider())
}
func TestTracerProviderShutdown(t *testing.T) {
m := NewManager(log.NewNopLogger())
cfg := config.Config{
TracingConfig: config.TracingConfig{
Endpoint: "localhost:1234",
ClientType: config.TracingClientGRPC,
},
}
require.NoError(t, m.ApplyConfig(&cfg))
m.Stop()
// Check if we closed the done channel.
_, ok := <-m.done
require.False(t, ok)
}