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64 lines
1.0 KiB
Go
64 lines
1.0 KiB
Go
// +build go1.7
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package errors
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import (
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"fmt"
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"testing"
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stderrors "errors"
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)
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func noErrors(at, depth int) error {
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if at >= depth {
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return stderrors.New("no error")
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}
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return noErrors(at+1, depth)
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}
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func yesErrors(at, depth int) error {
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if at >= depth {
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return New("ye error")
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}
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return yesErrors(at+1, depth)
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}
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// GlobalE is an exported global to store the result of benchmark results,
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// preventing the compiler from optimising the benchmark functions away.
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var GlobalE error
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func BenchmarkErrors(b *testing.B) {
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type run struct {
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stack int
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std bool
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}
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runs := []run{
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{10, false},
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{10, true},
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{100, false},
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{100, true},
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{1000, false},
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{1000, true},
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}
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for _, r := range runs {
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part := "pkg/errors"
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if r.std {
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part = "errors"
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}
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name := fmt.Sprintf("%s-stack-%d", part, r.stack)
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b.Run(name, func(b *testing.B) {
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var err error
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f := yesErrors
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if r.std {
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f = noErrors
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}
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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err = f(0, r.stack)
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}
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b.StopTimer()
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GlobalE = err
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})
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}
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}
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