forked from open-telemetry/opentelemetry-go
/
otlptest.go
134 lines (120 loc) · 4.06 KB
/
otlptest.go
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// Copyright The OpenTelemetry 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 otlptracetest // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlptracetest"
import (
"context"
"testing"
"time"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
commonpb "go.opentelemetry.io/proto/otlp/common/v1"
)
// RunEndToEndTest can be used by otlptrace.Client tests to validate
// themselves.
func RunEndToEndTest(ctx context.Context, t *testing.T, exp *otlptrace.Exporter, tracesCollector TracesCollector) {
pOpts := []sdktrace.TracerProviderOption{
sdktrace.WithSampler(sdktrace.AlwaysSample()),
sdktrace.WithBatcher(
exp,
// add following two options to ensure flush
sdktrace.WithBatchTimeout(5*time.Second),
sdktrace.WithMaxExportBatchSize(10),
),
}
tp1 := sdktrace.NewTracerProvider(append(pOpts,
sdktrace.WithResource(resource.NewSchemaless(
attribute.String("rk1", "rv11)"),
attribute.Int64("rk2", 5),
)))...)
tp2 := sdktrace.NewTracerProvider(append(pOpts,
sdktrace.WithResource(resource.NewSchemaless(
attribute.String("rk1", "rv12)"),
attribute.Float64("rk3", 6.5),
)))...)
tr1 := tp1.Tracer("test-tracer1")
tr2 := tp2.Tracer("test-tracer2")
// Now create few spans
m := 4
for i := 0; i < m; i++ {
_, span := tr1.Start(ctx, "AlwaysSample")
span.SetAttributes(attribute.Int64("i", int64(i)))
span.End()
_, span = tr2.Start(ctx, "AlwaysSample")
span.SetAttributes(attribute.Int64("i", int64(i)))
span.End()
}
func() {
ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
defer cancel()
if err := tp1.Shutdown(ctx); err != nil {
t.Fatalf("failed to shut down a tracer provider 1: %v", err)
}
if err := tp2.Shutdown(ctx); err != nil {
t.Fatalf("failed to shut down a tracer provider 2: %v", err)
}
}()
// Wait >2 cycles.
<-time.After(40 * time.Millisecond)
// Now shutdown the exporter
ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
defer cancel()
if err := exp.Shutdown(ctx); err != nil {
t.Fatalf("failed to stop the exporter: %v", err)
}
// Shutdown the collector too so that we can begin
// verification checks of expected data back.
if err := tracesCollector.Stop(); err != nil {
t.Fatalf("failed to stop the mock collector: %v", err)
}
// Now verify that we only got two resources
rss := tracesCollector.GetResourceSpans()
if got, want := len(rss), 2; got != want {
t.Fatalf("resource span count: got %d, want %d\n", got, want)
}
// Now verify spans and attributes for each resource span.
for _, rs := range rss {
if len(rs.ScopeSpans) == 0 {
t.Fatalf("zero ScopeSpans")
}
if got, want := len(rs.ScopeSpans[0].Spans), m; got != want {
t.Fatalf("span counts: got %d, want %d", got, want)
}
attrMap := map[int64]bool{}
for _, s := range rs.ScopeSpans[0].Spans {
if gotName, want := s.Name, "AlwaysSample"; gotName != want {
t.Fatalf("span name: got %s, want %s", gotName, want)
}
attrMap[s.Attributes[0].Value.Value.(*commonpb.AnyValue_IntValue).IntValue] = true
}
if got, want := len(attrMap), m; got != want {
t.Fatalf("span attribute unique values: got %d want %d", got, want)
}
for i := 0; i < m; i++ {
_, ok := attrMap[int64(i)]
if !ok {
t.Fatalf("span with attribute %d missing", i)
}
}
}
}
func OTelErrors() *[]error {
errors := new([]error)
otel.SetErrorHandler(otel.ErrorHandlerFunc(func(err error) {
*errors = append(*errors, err)
}))
return errors
}