86 lines
2.4 KiB
Go
86 lines
2.4 KiB
Go
package observability
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import (
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"context"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/stretchr/testify/assert"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/trace"
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)
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func TestNewRouter(t *testing.T) {
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type expected struct {
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attributes []attribute.KeyValue
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name string
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}
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testCases := []struct {
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desc string
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service string
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router string
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routerRule string
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expected []expected
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}{
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{
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desc: "base",
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service: "myService",
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router: "myRouter",
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routerRule: "Path(`/`)",
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expected: []expected{
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{
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name: "EntryPoint",
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attributes: []attribute.KeyValue{
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attribute.String("span.kind", "server"),
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},
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},
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{
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name: "Router",
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attributes: []attribute.KeyValue{
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attribute.String("span.kind", "internal"),
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attribute.String("http.request.method", "GET"),
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attribute.Int64("http.response.status_code", int64(404)),
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attribute.String("network.protocol.version", "1.1"),
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attribute.String("server.address", "www.test.com"),
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attribute.Int64("server.port", int64(80)),
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attribute.String("url.full", "http://www.test.com/traces?p=OpenTelemetry"),
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attribute.String("url.scheme", "http"),
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attribute.String("traefik.service.name", "myService"),
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attribute.String("traefik.router.name", "myRouter"),
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attribute.String("http.route", "Path(`/`)"),
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attribute.String("user_agent.original", "router-test"),
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},
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},
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},
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},
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}
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for _, test := range testCases {
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t.Run(test.desc, func(t *testing.T) {
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req := httptest.NewRequest(http.MethodGet, "http://www.test.com/traces?p=OpenTelemetry", nil)
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req.RemoteAddr = "10.0.0.1:1234"
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req.Header.Set("User-Agent", "router-test")
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tracer := &mockTracer{}
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tracingCtx, entryPointSpan := tracer.Start(req.Context(), "EntryPoint", trace.WithSpanKind(trace.SpanKindServer))
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defer entryPointSpan.End()
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req = req.WithContext(tracingCtx)
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rw := httptest.NewRecorder()
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next := http.HandlerFunc(func(rw http.ResponseWriter, _ *http.Request) {
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rw.WriteHeader(http.StatusNotFound)
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})
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handler := newRouter(context.Background(), test.router, test.routerRule, test.service, next)
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handler.ServeHTTP(rw, req)
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for i, span := range tracer.spans {
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assert.Equal(t, test.expected[i].name, span.name)
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assert.Equal(t, test.expected[i].attributes, span.attributes)
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}
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})
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}
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}
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