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// Copyright 2017 Canonical Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rafttest
import (
"fmt"
"math"
"os"
"strconv"
"time"
)
// Duration is a convenience to scale the given duration according to the
// GO_RAFT_TEST_LATENCY environment variable.
func Duration(duration time.Duration) time.Duration {
factor := 1.0
if env := os.Getenv("GO_RAFT_TEST_LATENCY"); env != "" {
var err error
factor, err = strconv.ParseFloat(env, 64)
if err != nil {
panic(fmt.Sprintf("invalid value '%s' for GO_RAFT_TEST_LATENCY", env))
}
}
return scaleDuration(duration, factor)
}
func scaleDuration(duration time.Duration, factor float64) time.Duration {
if factor == 1.0 {
return duration
}
return time.Duration((math.Ceil(float64(duration) * factor)))
}
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