mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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15bfc5bb12
Also fixes example module paths so that they use the vanity URL instead of the github URL. [Closes #184]
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
// Copyright 2019, OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package stdout
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import (
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"bytes"
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"context"
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"encoding/json"
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"testing"
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"time"
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"google.golang.org/grpc/codes"
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"go.opentelemetry.io/otel/api/core"
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"go.opentelemetry.io/otel/api/key"
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"go.opentelemetry.io/otel/api/trace"
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"go.opentelemetry.io/otel/sdk/export"
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)
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func TestExporter_ExportSpan(t *testing.T) {
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ex, err := NewExporter(Options{})
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if err != nil {
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t.Errorf("Error constructing stdout exporter %s", err)
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}
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// override output writer for testing
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var b bytes.Buffer
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ex.outputWriter = &b
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// setup test span
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now := time.Now()
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traceID, _ := core.TraceIDFromHex("0102030405060708090a0b0c0d0e0f10")
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spanID, _ := core.SpanIDFromHex("0102030405060708")
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keyValue := "value"
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doubleValue := float64(123.456)
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testSpan := &export.SpanData{
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SpanContext: core.SpanContext{
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TraceID: traceID,
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SpanID: spanID,
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},
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Name: "/foo",
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StartTime: now,
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EndTime: now,
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Attributes: []core.KeyValue{
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key.String("key", keyValue),
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key.Float64("double", doubleValue),
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},
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SpanKind: trace.SpanKindInternal,
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Status: codes.Unknown,
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}
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ex.ExportSpan(context.Background(), testSpan)
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expectedSerializedNow, _ := json.Marshal(now)
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got := b.String()
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expectedOutput := `{"SpanContext":{` +
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`"TraceID":"0102030405060708090a0b0c0d0e0f10",` +
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`"SpanID":"0102030405060708","TraceFlags":0},` +
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`"ParentSpanID":"0000000000000000",` +
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`"SpanKind":"internal",` +
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`"Name":"/foo",` +
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`"StartTime":` + string(expectedSerializedNow) + "," +
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`"EndTime":` + string(expectedSerializedNow) + "," +
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`"Attributes":[` +
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`{` +
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`"Key":"key",` +
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`"Value":{"Type":"STRING","Value":"value"}` +
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`},` +
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`{` +
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`"Key":"double",` +
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`"Value":{"Type":"FLOAT64","Value":123.456}` +
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`}` +
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`],` +
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`"MessageEvents":null,` +
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`"Links":null,` +
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`"Status":2,` +
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`"HasRemoteParent":false,` +
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`"DroppedAttributeCount":0,` +
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`"DroppedMessageEventCount":0,` +
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`"DroppedLinkCount":0,` +
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`"ChildSpanCount":0}` + "\n"
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if got != expectedOutput {
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t.Errorf("Want: %v but got: %v", expectedOutput, got)
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}
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}
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