Ilia Denisov
113 lines
3.4 KiB
Go
113 lines
3.4 KiB
Go
package internalhttp
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"log/slog"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"testing"
|
|
|
|
"galaxy/user/internal/service/authdirectory"
|
|
usertelemetry "galaxy/user/internal/telemetry"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
"github.com/stretchr/testify/require"
|
|
"go.opentelemetry.io/otel/attribute"
|
|
sdkmetric "go.opentelemetry.io/otel/sdk/metric"
|
|
"go.opentelemetry.io/otel/sdk/metric/metricdata"
|
|
sdktrace "go.opentelemetry.io/otel/sdk/trace"
|
|
"go.opentelemetry.io/otel/sdk/trace/tracetest"
|
|
)
|
|
|
|
func TestInternalHandlerEmitsTraceFieldsAndMetrics(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
logger, buffer := newObservedLogger()
|
|
telemetryRuntime, reader, recorder := newObservedInternalTelemetryRuntime(t)
|
|
handler := mustNewHandler(t, Dependencies{
|
|
Logger: logger,
|
|
Telemetry: telemetryRuntime,
|
|
ExistsByUserID: existsByUserIDFunc(func(context.Context, authdirectory.ExistsByUserIDInput) (authdirectory.ExistsByUserIDResult, error) {
|
|
return authdirectory.ExistsByUserIDResult{Exists: true}, nil
|
|
}),
|
|
})
|
|
|
|
recorderHTTP := httptest.NewRecorder()
|
|
request := httptest.NewRequest(http.MethodGet, "/api/v1/internal/users/user-123/exists", nil)
|
|
request.Header.Set("traceparent", "00-4bf92f3577b34da6a3ce929d0e0e4736-00f067aa0ba902b7-01")
|
|
|
|
handler.ServeHTTP(recorderHTTP, request)
|
|
|
|
require.Equal(t, http.StatusOK, recorderHTTP.Code)
|
|
require.NotEmpty(t, recorder.Ended())
|
|
assert.Contains(t, buffer.String(), "otel_trace_id")
|
|
assert.Contains(t, buffer.String(), "otel_span_id")
|
|
|
|
assertMetricCount(t, reader, "user.internal_http.requests", map[string]string{
|
|
"route": "/api/v1/internal/users/:user_id/exists",
|
|
"method": http.MethodGet,
|
|
"edge_outcome": "success",
|
|
}, 1)
|
|
}
|
|
|
|
func newObservedInternalTelemetryRuntime(t *testing.T) (*usertelemetry.Runtime, *sdkmetric.ManualReader, *tracetest.SpanRecorder) {
|
|
t.Helper()
|
|
|
|
reader := sdkmetric.NewManualReader()
|
|
meterProvider := sdkmetric.NewMeterProvider(sdkmetric.WithReader(reader))
|
|
recorder := tracetest.NewSpanRecorder()
|
|
tracerProvider := sdktrace.NewTracerProvider(sdktrace.WithSpanProcessor(recorder))
|
|
|
|
runtime, err := usertelemetry.NewWithProviders(meterProvider, tracerProvider)
|
|
require.NoError(t, err)
|
|
|
|
return runtime, reader, recorder
|
|
}
|
|
|
|
func newObservedLogger() (*slog.Logger, *bytes.Buffer) {
|
|
buffer := &bytes.Buffer{}
|
|
return slog.New(slog.NewJSONHandler(buffer, &slog.HandlerOptions{Level: slog.LevelDebug})), buffer
|
|
}
|
|
|
|
func assertMetricCount(t *testing.T, reader *sdkmetric.ManualReader, metricName string, wantAttrs map[string]string, wantValue int64) {
|
|
t.Helper()
|
|
|
|
var resourceMetrics metricdata.ResourceMetrics
|
|
require.NoError(t, reader.Collect(context.Background(), &resourceMetrics))
|
|
|
|
for _, scopeMetrics := range resourceMetrics.ScopeMetrics {
|
|
for _, metric := range scopeMetrics.Metrics {
|
|
if metric.Name != metricName {
|
|
continue
|
|
}
|
|
|
|
sum, ok := metric.Data.(metricdata.Sum[int64])
|
|
require.True(t, ok)
|
|
|
|
for _, point := range sum.DataPoints {
|
|
if hasMetricAttributes(point.Attributes.ToSlice(), wantAttrs) {
|
|
assert.Equal(t, wantValue, point.Value)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
require.Failf(t, "test failed", "metric %q with attrs %v not found", metricName, wantAttrs)
|
|
}
|
|
|
|
func hasMetricAttributes(values []attribute.KeyValue, want map[string]string) bool {
|
|
if len(values) != len(want) {
|
|
return false
|
|
}
|
|
|
|
for _, value := range values {
|
|
if want[string(value.Key)] != value.Value.AsString() {
|
|
return false
|
|
}
|
|
}
|
|
|
|
return true
|
|
}
|