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package tracing
import (
"testing"
"github.com/opentracing/opentracing-go"
"github.com/opentracing/opentracing-go/log"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/uber/jaeger-client-go"
"gitlab.com/gitlab-org/gitaly/v16/internal/testhelper"
)
func TestCreateSpan(t *testing.T) {
reporter, cleanup := testhelper.StubTracingReporter(t)
defer cleanup()
var span opentracing.Span
span, _ = StartSpan(testhelper.Context(t), "root", Tags{
"tagRoot1": "value1",
"tagRoot2": "value2",
"tagRoot3": "value3",
})
span.Finish()
require.Equal(t, []string{"root"}, reportedSpans(t, reporter))
require.Equal(t, Tags{
"tagRoot1": "value1",
"tagRoot2": "value2",
"tagRoot3": "value3",
}, spanTags(span))
}
func TestCreateSpanIfHasParent_emptyContext(t *testing.T) {
reporter, cleanup := testhelper.StubTracingReporter(t)
defer cleanup()
ctx := testhelper.Context(t)
var span, span2 opentracing.Span
span, ctx = StartSpanIfHasParent(ctx, "should-not-report-root", nil)
span.SetBaggageItem("baggage", "baggageValue")
span.SetTag("tag", "tagValue")
span.LogFields(log.String("log", "logValue"))
span.LogKV("log2", "logValue")
span.Finish()
span2, _ = StartSpanIfHasParent(ctx, "should-not-report-child", nil)
span2.Finish()
require.Empty(t, reportedSpans(t, reporter))
}
func TestCreateSpanIfHasParent_hasParent(t *testing.T) {
reporter, cleanup := testhelper.StubTracingReporter(t)
defer cleanup()
ctx := testhelper.Context(t)
var span1, span2 opentracing.Span
span1, ctx = StartSpan(ctx, "root", nil)
span2, _ = StartSpanIfHasParent(ctx, "child", nil)
span2.Finish()
span1.Finish()
spans := reportedSpans(t, reporter)
require.Equal(t, []string{"child", "root"}, spans)
}
func TestCreateSpanIfHasParent_hasParentWithTags(t *testing.T) {
reporter, cleanup := testhelper.StubTracingReporter(t)
defer cleanup()
ctx := testhelper.Context(t)
var span1, span2 opentracing.Span
span1, ctx = StartSpan(ctx, "root", Tags{
"tagRoot1": "value1",
"tagRoot2": "value2",
"tagRoot3": "value3",
})
span2, _ = StartSpanIfHasParent(ctx, "child", Tags{
"tagChild1": "value1",
"tagChild2": "value2",
"tagChild3": "value3",
})
span2.Finish()
span1.Finish()
spans := reportedSpans(t, reporter)
require.Equal(t, []string{"child", "root"}, spans)
require.Equal(t, Tags{
"tagRoot1": "value1",
"tagRoot2": "value2",
"tagRoot3": "value3",
}, spanTags(span1))
require.Equal(t, Tags{
"tagChild1": "value1",
"tagChild2": "value2",
"tagChild3": "value3",
}, spanTags(span2))
}
func TestDiscardSpanInContext_emptyContext(t *testing.T) {
ctx := DiscardSpanInContext(testhelper.Context(t))
require.Nil(t, opentracing.SpanFromContext(ctx))
}
func TestDiscardSpanInContext_hasParent(t *testing.T) {
reporter, cleanup := testhelper.StubTracingReporter(t)
defer cleanup()
ctx := testhelper.Context(t)
var span1, span2, span3 opentracing.Span
span1, ctx = StartSpan(ctx, "root", nil)
span2, ctx = StartSpanIfHasParent(ctx, "child", nil)
ctx = DiscardSpanInContext(ctx)
span3, _ = StartSpanIfHasParent(ctx, "discarded", nil)
span3.Finish()
span2.Finish()
span1.Finish()
spans := reportedSpans(t, reporter)
require.Equal(t, []string{"child", "root"}, spans)
}
func reportedSpans(t *testing.T, reporter *jaeger.InMemoryReporter) []string {
var names []string
for _, span := range reporter.GetSpans() {
if !assert.IsType(t, span, &jaeger.Span{}) {
continue
}
jaegerSpan := span.(*jaeger.Span)
names = append(names, jaegerSpan.OperationName())
}
return names
}
func spanTags(span opentracing.Span) Tags {
tags := Tags{}
jaegerSpan := span.(*jaeger.Span)
for key, value := range jaegerSpan.Tags() {
tags[key] = value
}
return tags
}
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