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tracing_test.go
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tracing_test.go
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package tracing
import (
"errors"
"testing"
"time"
"github.com/opentracing/opentracing-go/mocktracer"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/cosmos/cosmos-sdk/types"
"github.com/opentracing/opentracing-go"
)
func TestDoWithTracing(t *testing.T) {
specs := map[string]struct {
cb func(workCtx types.Context, span opentracing.Span) error
expect func(t *testing.T, cap *mocktracer.MockTracer)
}{
"with error logged": {
cb: func(workCtx types.Context, span opentracing.Span) error {
return errors.New("my-error")
},
expect: func(t *testing.T, cap *mocktracer.MockTracer) {
spans := cap.FinishedSpans()
require.Len(t, spans, 1)
assert.Equal(t, "true", spans[0].Tags()[tagErrored])
logs := spans[0].Logs()
require.GreaterOrEqual(t, len(logs), 1)
assert.Equal(t, "error.object", logs[0].Fields[0].Key)
assert.Equal(t, "my-error", logs[0].Fields[0].ValueString)
},
},
"with other calls": {
cb: func(parentCtx types.Context, span opentracing.Span) error {
span.SetTag("outer", "true")
DoWithTracing(parentCtx, "inner", all, func(workCtx types.Context, span opentracing.Span) error {
span.SetTag("inner", "sure")
return nil
})
return nil
},
expect: func(t *testing.T, cap *mocktracer.MockTracer) {
spans := cap.FinishedSpans()
require.Len(t, spans, 2)
assert.Equal(t, "inner", spans[0].OperationName)
assert.Equal(t, "my-op", spans[1].OperationName)
assert.Equal(t, "sure", spans[0].Tags()["inner"])
assert.Equal(t, "true", spans[1].Tags()["outer"])
},
},
"with clock shift": {
cb: func(workCtx types.Context, span opentracing.Span) error {
return nil
},
expect: func(t *testing.T, cap *mocktracer.MockTracer) {
spans := cap.FinishedSpans()
require.Len(t, spans, 1)
blockTime := time.Date(2020, time.April, 22, 12, 0, 0, 0, time.UTC)
require.Equal(t, blockTime, spans[0].StartTime)
assert.Less(t, spans[0].FinishTime, blockTime.Add(time.Second))
},
},
}
for name, spec := range specs {
t.Run(name, func(t *testing.T) {
tracer := mocktracer.New()
opentracing.SetGlobalTracer(tracer)
ctx, _, _ := createMinTestInput(t)
DoWithTracing(ctx, "my-op", all, spec.cb)
spec.expect(t, tracer)
})
}
}