Files
forge/modules/gtprof/trace_test.go
zeekayandHanzo Dev aa87442fdd Record upstream authorship centrally in NOTICE instead of in every file header
Source files keep their SPDX-License-Identifier and Hanzo copyright line; the
Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in
NOTICE, alongside LICENSE. The header lint accepts any copyright line above the
SPDX line, so it no longer demands an upstream one.

Co-authored-by: Hanzo Dev <[email protected]>
2026-09-10 17:50:35 -07:00

94 lines
2.3 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// SPDX-License-Identifier: MIT
package gtprof
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
)
// "vendor span" is a simple demo for a span from a vendor library
var vendorContextKey any = "vendorContextKey"
type vendorSpan struct {
name string
children []*vendorSpan
}
func vendorTraceStart(ctx context.Context, name string) (context.Context, *vendorSpan) {
span := &vendorSpan{name: name}
parentSpan, ok := ctx.Value(vendorContextKey).(*vendorSpan)
if ok {
parentSpan.children = append(parentSpan.children, span)
}
ctx = context.WithValue(ctx, vendorContextKey, span)
return ctx, span
}
// below "testTrace*" integrate the vendor span into our trace system
type testTraceSpan struct {
vendorSpan *vendorSpan
}
func (t *testTraceSpan) addEvent(name string, cfg *EventConfig) {}
func (t *testTraceSpan) recordError(err error, cfg *EventConfig) {}
func (t *testTraceSpan) end() {}
type testTraceStarter struct{}
func (t *testTraceStarter) start(ctx context.Context, traceSpan *TraceSpan, internalSpanIdx int) (context.Context, traceSpanInternal) {
ctx, span := vendorTraceStart(ctx, traceSpan.name)
return ctx, &testTraceSpan{span}
}
func TestTraceStarter(t *testing.T) {
globalTraceStarters = []traceStarter{&testTraceStarter{}}
ctx := t.Context()
ctx, span := GetTracer().Start(ctx, "root")
defer span.End()
func(ctx context.Context) {
ctx, span := GetTracer().Start(ctx, "span1")
defer span.End()
func(ctx context.Context) {
_, span := GetTracer().Start(ctx, "spanA")
defer span.End()
}(ctx)
func(ctx context.Context) {
_, span := GetTracer().Start(ctx, "spanB")
defer span.End()
}(ctx)
}(ctx)
func(ctx context.Context) {
_, span := GetTracer().Start(ctx, "span2")
defer span.End()
}(ctx)
var spanFullNames []string
var collectSpanNames func(parentFullName string, s *vendorSpan)
collectSpanNames = func(parentFullName string, s *vendorSpan) {
fullName := parentFullName + "/" + s.name
spanFullNames = append(spanFullNames, fullName)
for _, c := range s.children {
collectSpanNames(fullName, c)
}
}
collectSpanNames("", span.internalSpans[0].(*testTraceSpan).vendorSpan)
assert.Equal(t, []string{
"/root",
"/root/span1",
"/root/span1/spanA",
"/root/span1/spanB",
"/root/span2",
}, spanFullNames)
}