Add benchmarks for different error cases (#7)
diff --git a/benchmarks_test.go b/benchmarks_test.go
new file mode 100644
index 0000000..797f5a0
--- /dev/null
+++ b/benchmarks_test.go
@@ -0,0 +1,62 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package multierr
+
+import (
+ "errors"
+ "fmt"
+ "testing"
+)
+
+func BenchmarkAppend(b *testing.B) {
+ errorTypes := []struct {
+ name string
+ err error
+ }{
+ {
+ name: "nil",
+ err: nil,
+ },
+ {
+ name: "single error",
+ err: errors.New("test"),
+ },
+ {
+ name: "multiple errors",
+ err: appendN(nil, errors.New("err"), 10),
+ },
+ }
+
+ for _, initial := range errorTypes {
+ for _, v := range errorTypes {
+ msg := fmt.Sprintf("append %v to %v", v.name, initial.name)
+ b.Run(msg, func(b *testing.B) {
+ for _, appends := range []int{1, 2, 10} {
+ b.Run(fmt.Sprint(appends), func(b *testing.B) {
+ for i := 0; i < b.N; i++ {
+ appendN(initial.err, v.err, appends)
+ }
+ })
+ }
+ })
+ }
+ }
+}
diff --git a/error_test.go b/error_test.go
index e3a6804..e54fcd7 100644
--- a/error_test.go
+++ b/error_test.go
@@ -1,3 +1,23 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
package multierr
import (
