1 files changed, 60 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/golang.org/x/xerrors@v0.0.0-20220907171357-04be3eba64a2/stack_test.go b/dependencies/pkg/mod/golang.org/x/xerrors@v0.0.0-20220907171357-04be3eba64a2/stack_test.go
new file mode 100644
index 0000000..e13f319
--- /dev/null
+++ b/dependencies/pkg/mod/golang.org/x/xerrors@v0.0.0-20220907171357-04be3eba64a2/stack_test.go
@@ -0,0 +1,60 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package xerrors_test
+
+import (
+	"bytes"
+	"fmt"
+	"math/big"
+	"testing"
+
+	"golang.org/x/xerrors"
+	"golang.org/x/xerrors/internal"
+)
+
+type myType struct{}
+
+func (myType) Format(s fmt.State, v rune) {
+	s.Write(bytes.Repeat([]byte("Hi! "), 10))
+}
+
+func BenchmarkErrorf(b *testing.B) {
+	err := xerrors.New("foo")
+	// pi := big.NewFloat(3.14) // Something expensive.
+	num := big.NewInt(5)
+	args := func(a ...interface{}) []interface{} { return a }
+	benchCases := []struct {
+		name   string
+		format string
+		args   []interface{}
+	}{
+		{"no_format", "msg: %v", args(err)},
+		{"with_format", "failed %d times: %v", args(5, err)},
+		{"method: mytype", "pi: %v", args("myfile.go", myType{}, err)},
+		{"method: number", "pi: %v", args("myfile.go", num, err)},
+	}
+	for _, bc := range benchCases {
+		b.Run(bc.name, func(b *testing.B) {
+			b.Run("ExpWithTrace", func(b *testing.B) {
+				for i := 0; i < b.N; i++ {
+					xerrors.Errorf(bc.format, bc.args...)
+				}
+			})
+			b.Run("ExpNoTrace", func(b *testing.B) {
+				internal.EnableTrace = false
+				defer func() { internal.EnableTrace = true }()
+
+				for i := 0; i < b.N; i++ {
+					xerrors.Errorf(bc.format, bc.args...)
+				}
+			})
+			b.Run("Core", func(b *testing.B) {
+				for i := 0; i < b.N; i++ {
+					fmt.Errorf(bc.format, bc.args...)
+				}
+			})
+		})
+	}
+}