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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package autoexport // import "go.opentelemetry.io/contrib/exporters/autoexport"
import (
"context"
"fmt"
"reflect"
"testing"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
"github.com/stretchr/testify/assert"
)
func TestSpanExporterNone(t *testing.T) {
t.Setenv("OTEL_TRACES_EXPORTER", "none")
got, err := NewSpanExporter(context.Background())
assert.NoError(t, err)
t.Cleanup(func() {
assert.NoError(t, got.Shutdown(context.Background()))
})
assert.True(t, IsNoneSpanExporter(got))
}
func TestSpanExporterConsole(t *testing.T) {
t.Setenv("OTEL_TRACES_EXPORTER", "console")
got, err := NewSpanExporter(context.Background())
assert.NoError(t, err)
assert.IsType(t, &stdouttrace.Exporter{}, got)
}
func TestSpanExporterOTLP(t *testing.T) {
t.Setenv("OTEL_TRACES_EXPORTER", "otlp")
for _, tc := range []struct {
protocol, clientType string
}{
{"http/protobuf", "*otlptracehttp.client"},
{"", "*otlptracehttp.client"},
{"grpc", "*otlptracegrpc.client"},
} {
t.Run(fmt.Sprintf("protocol=%q", tc.protocol), func(t *testing.T) {
t.Setenv("OTEL_EXPORTER_OTLP_PROTOCOL", tc.protocol)
got, err := NewSpanExporter(context.Background())
assert.NoError(t, err)
t.Cleanup(func() {
assert.NoError(t, got.Shutdown(context.Background()))
})
assert.IsType(t, &otlptrace.Exporter{}, got)
// Implementation detail hack. This may break when bumping OTLP exporter modules as it uses unexported API.
clientType := reflect.Indirect(reflect.ValueOf(got)).FieldByName("client").Elem().Type()
assert.Equal(t, tc.clientType, clientType.String())
})
}
}
func TestSpanExporterOTLPWithDedicatedProtocol(t *testing.T) {
t.Setenv("OTEL_TRACES_EXPORTER", "otlp")
for _, tc := range []struct {
protocol, clientType string
}{
{"http/protobuf", "*otlptracehttp.client"},
{"", "*otlptracehttp.client"},
{"grpc", "*otlptracegrpc.client"},
} {
t.Run(fmt.Sprintf("protocol=%q", tc.protocol), func(t *testing.T) {
t.Setenv("OTEL_EXPORTER_OTLP_TRACES_PROTOCOL", tc.protocol)
got, err := NewSpanExporter(context.Background())
assert.NoError(t, err)
t.Cleanup(func() {
assert.NoError(t, got.Shutdown(context.Background()))
})
assert.IsType(t, &otlptrace.Exporter{}, got)
// Implementation detail hack. This may break when bumping OTLP exporter modules as it uses unexported API.
clientType := reflect.Indirect(reflect.ValueOf(got)).FieldByName("client").Elem().Type()
assert.Equal(t, tc.clientType, clientType.String())
})
}
}
func TestSpanExporterOTLPOverInvalidProtocol(t *testing.T) {
t.Setenv("OTEL_TRACES_EXPORTER", "otlp")
t.Setenv("OTEL_EXPORTER_OTLP_PROTOCOL", "invalid-protocol")
_, err := NewSpanExporter(context.Background())
assert.Error(t, err)
}
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