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processor_test.go
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processor_test.go
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// Copyright 2019 Omnition 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
//
// https://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 k8sprocessor
import (
"context"
"testing"
commonpb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
"github.com/open-telemetry/opentelemetry-collector/client"
"github.com/open-telemetry/opentelemetry-collector/component"
"github.com/open-telemetry/opentelemetry-collector/component/componenttest"
"github.com/open-telemetry/opentelemetry-collector/consumer/consumerdata"
"github.com/open-telemetry/opentelemetry-collector/exporter/exportertest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
"github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sprocessor/kube"
)
func TestNewTraceProcessor(t *testing.T) {
_, err := NewTraceProcessor(
zap.NewNop(),
exportertest.NewNopTraceExporterOld(),
kube.NewFakeClient,
)
require.NoError(t, err)
}
func TestIPDetection(t *testing.T) {
next := &testConsumer{}
kp, err := NewTraceProcessor(
zap.NewNop(),
next,
kube.NewFakeClient,
)
require.NoError(t, err)
ctx := client.NewContext(context.Background(), &client.Client{IP: "1.1.1.1"})
err = kp.ConsumeTraceData(ctx, consumerdata.TraceData{})
require.NoError(t, err)
require.Len(t, next.data, 1)
require.NotNil(t, next.data[0].Resource)
assert.Equal(t, next.data[0].Resource.Labels["k8s.pod.ip"], "1.1.1.1")
}
func TestNoIP(t *testing.T) {
next := &testConsumer{}
kp, err := NewTraceProcessor(
zap.NewNop(),
next,
kube.NewFakeClient,
)
require.NoError(t, err)
err = kp.ConsumeTraceData(context.Background(), consumerdata.TraceData{})
require.NoError(t, err)
require.Len(t, next.data, 1)
assert.Nil(t, next.data[0].Resource)
}
func TestJaegerIP(t *testing.T) {
next := &testConsumer{}
kp, err := NewTraceProcessor(
zap.NewNop(),
next,
kube.NewFakeClient,
)
require.NoError(t, err)
// should not detect IP
err = kp.ConsumeTraceData(
context.Background(),
consumerdata.TraceData{
Node: &commonpb.Node{
Attributes: map[string]string{
"ip": "1.1.1.1",
},
},
},
)
require.NoError(t, err)
require.Len(t, next.data, 1)
assert.Nil(t, next.data[0].Resource)
// should detect IP from Node when source format is "jaeger"
err = kp.ConsumeTraceData(
context.Background(),
consumerdata.TraceData{
SourceFormat: "jaeger",
Node: &commonpb.Node{
Attributes: map[string]string{
"ip": "1.1.1.1",
},
},
},
)
require.NoError(t, err)
require.Len(t, next.data, 2)
assert.NotNil(t, next.data[1].Resource)
assert.Equal(t, next.data[1].Resource.Labels["k8s.pod.ip"], "1.1.1.1")
}
func TestAddLabels(t *testing.T) {
next := &testConsumer{}
p, err := NewTraceProcessor(
zap.NewNop(),
next,
kube.NewFakeClient,
)
require.NoError(t, err)
kc := fakeClientFromProcessor(t, p)
tests := map[string]map[string]string{
"1": {
"pod": "test-2323",
"ns": "default",
"another tag": "value",
},
"2": {},
}
for ip, attrs := range tests {
kc.Pods[ip] = &kube.Pod{Attributes: attrs}
}
var i int
for ip, attrs := range tests {
ctx := client.NewContext(context.Background(), &client.Client{IP: ip})
err = p.ConsumeTraceData(ctx, consumerdata.TraceData{})
require.NoError(t, err)
require.Len(t, next.data, i+1)
td := next.data[i]
require.NotNil(t, td.Resource)
assert.Equal(t, td.Resource.Labels["k8s.pod.ip"], ip)
for k, v := range attrs {
vv, ok := td.Resource.Labels[k]
assert.True(t, ok)
assert.Equal(t, v, vv)
}
i++
}
}
func TestPassthroughStart(t *testing.T) {
next := &testConsumer{}
opts := []Option{WithPassthrough()}
p, err := NewTraceProcessor(
zap.NewNop(),
next,
kube.NewFakeClient,
opts...,
)
require.NoError(t, err)
// Just make sure this doesn't fail when Passthrough is enabled
assert.NoError(t, p.Start(context.Background(), componenttest.NewNopHost()))
assert.NoError(t, p.Shutdown(context.Background()))
}
func fakeClientFromProcessor(t *testing.T, p component.TraceProcessorOld) *kube.FakeClient {
kp, ok := p.(*kubernetesprocessor)
if !ok {
assert.FailNow(t, "could not assert processor %s to kubernetesprocessor", p)
return nil
}
kc, ok := kp.kc.(*kube.FakeClient)
if !ok {
assert.FailNow(t, "could not assert kube client %s to kube.FakeClient", p)
return nil
}
return kc
}
type testConsumer struct {
data []consumerdata.TraceData
}
func (ts *testConsumer) ConsumeTraceData(ctx context.Context, td consumerdata.TraceData) error {
ts.data = append(ts.data, td)
return nil
}