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opentelemetry-go/exporters/trace/stdout/stdout_test.go
Chen Yixiao 1301b6f3e4
Move core and key to kv package (#720)
* Move core to kv

* Move kv.Value to kv.value.Value

* Move key to kv
2020-05-13 16:06:03 -07:00

131 lines
3.4 KiB
Go

// 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 stdout
import (
"bytes"
"context"
"encoding/json"
"testing"
"time"
"google.golang.org/grpc/codes"
"go.opentelemetry.io/otel/api/kv"
"go.opentelemetry.io/otel/api/trace"
export "go.opentelemetry.io/otel/sdk/export/trace"
"go.opentelemetry.io/otel/sdk/resource"
)
func TestExporter_ExportSpan(t *testing.T) {
// write to buffer for testing
var b bytes.Buffer
ex, err := NewExporter(Options{Writer: &b})
if err != nil {
t.Errorf("Error constructing stdout exporter %s", err)
}
// setup test span
now := time.Now()
traceID, _ := trace.IDFromHex("0102030405060708090a0b0c0d0e0f10")
spanID, _ := trace.SpanIDFromHex("0102030405060708")
keyValue := "value"
doubleValue := 123.456
resource := resource.New(kv.String("rk1", "rv11"))
testSpan := &export.SpanData{
SpanContext: trace.SpanContext{
TraceID: traceID,
SpanID: spanID,
},
Name: "/foo",
StartTime: now,
EndTime: now,
Attributes: []kv.KeyValue{
kv.String("key", keyValue),
kv.Float64("double", doubleValue),
},
MessageEvents: []export.Event{
{Name: "foo", Attributes: []kv.KeyValue{kv.String("key", keyValue)}, Time: now},
{Name: "bar", Attributes: []kv.KeyValue{kv.Float64("double", doubleValue)}, Time: now},
},
SpanKind: trace.SpanKindInternal,
StatusCode: codes.Unknown,
StatusMessage: "interesting",
Resource: resource,
}
ex.ExportSpan(context.Background(), testSpan)
expectedSerializedNow, _ := json.Marshal(now)
got := b.String()
expectedOutput := `{"SpanContext":{` +
`"TraceID":"0102030405060708090a0b0c0d0e0f10",` +
`"SpanID":"0102030405060708","TraceFlags":0},` +
`"ParentSpanID":"0000000000000000",` +
`"SpanKind":1,` +
`"Name":"/foo",` +
`"StartTime":` + string(expectedSerializedNow) + "," +
`"EndTime":` + string(expectedSerializedNow) + "," +
`"Attributes":[` +
`{` +
`"Key":"key",` +
`"Value":{"Type":"STRING","Value":"value"}` +
`},` +
`{` +
`"Key":"double",` +
`"Value":{"Type":"FLOAT64","Value":123.456}` +
`}],` +
`"MessageEvents":[` +
`{` +
`"Name":"foo",` +
`"Attributes":[` +
`{` +
`"Key":"key",` +
`"Value":{"Type":"STRING","Value":"value"}` +
`}` +
`],` +
`"Time":` + string(expectedSerializedNow) +
`},` +
`{` +
`"Name":"bar",` +
`"Attributes":[` +
`{` +
`"Key":"double",` +
`"Value":{"Type":"FLOAT64","Value":123.456}` +
`}` +
`],` +
`"Time":` + string(expectedSerializedNow) +
`}` +
`],` +
`"Links":null,` +
`"StatusCode":2,` +
`"StatusMessage":"interesting",` +
`"HasRemoteParent":false,` +
`"DroppedAttributeCount":0,` +
`"DroppedMessageEventCount":0,` +
`"DroppedLinkCount":0,` +
`"ChildSpanCount":0,` +
`"Resource":[` +
`{` +
`"Key":"rk1",` +
`"Value":{"Type":"STRING","Value":"rv11"}` +
`}]}` + "\n"
if got != expectedOutput {
t.Errorf("Want: %v but got: %v", expectedOutput, got)
}
}