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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 timeutil
import (
"errors"
"fmt"
"math"
"time"
"github.com/jacobsa/oglematchers"
)
func timeNear(t time.Time, d time.Duration, c interface{}) error {
actual, ok := c.(time.Time)
if !ok {
return errors.New("which is not a time")
}
absDiff := time.Duration(math.Abs(float64(actual.Sub(t))))
if absDiff >= d {
return fmt.Errorf("which differs by %v", absDiff)
}
return nil
}
// Return a matcher for times whose absolute distance from t is less than d.
func TimeNear(t time.Time, d time.Duration) oglematchers.Matcher {
return oglematchers.NewMatcher(
func(c interface{}) error { return timeNear(t, d, c) },
fmt.Sprintf("within %v of %v", d, t))
}
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