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dynduration_test.go
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dynduration_test.go
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// Copyright 2015 Michal Witkowski. All Rights Reserved.
// See LICENSE for licensing terms.
package flagz
import (
"fmt"
"testing"
"time"
flag "github.com/spf13/pflag"
"github.com/stretchr/testify/assert"
)
func TestDynDuration_SetAndGet(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
dynFlag := DynDuration(set, "some_duration_1", 5*time.Second, "Use it or lose it")
assert.Equal(t, 5*time.Second, dynFlag.Get(), "value must be default after create")
err := set.Set("some_duration_1", "10h")
assert.NoError(t, err, "setting value must succeed")
assert.Equal(t, 10*time.Hour, dynFlag.Get(), "value must be set after update")
}
func TestDynDuration_IsMarkedDynamic(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynDuration(set, "some_duration_1", 5*time.Minute, "Use it or lose it")
assert.True(t, IsFlagDynamic(set.Lookup("some_duration_1")))
}
func TestDynDuration_FiresValidators(t *testing.T) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
validator := func(x time.Duration) error {
if x > 1*time.Hour {
return fmt.Errorf("too long")
}
return nil
}
DynDuration(set, "some_duration_1", 5*time.Second, "Use it or lose it").WithValidator(validator)
assert.NoError(t, set.Set("some_duration_1", "50m"), "no error from validator when in range")
assert.Error(t, set.Set("some_duration_1", "2h"), "error from validator when value out of range")
}
func TestDynDuration_FiresNotifier(t *testing.T) {
waitCh := make(chan bool, 1)
notifier := func(oldVal time.Duration, newVal time.Duration) {
assert.EqualValues(t, 5*time.Second, oldVal, "old value in notify must match previous value")
assert.EqualValues(t, 30*time.Second, newVal, "new value in notify must match set value")
waitCh <- true
}
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
DynDuration(set, "some_duration_1", 5*time.Second, "Use it or lose it").WithNotifier(notifier)
set.Set("some_duration_1", "30s")
select {
case <-time.After(5 * time.Millisecond):
assert.Fail(t, "failed to trigger notifier")
case <-waitCh:
}
}
func Benchmark_Duration_Dyn_Get(b *testing.B) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
value := DynDuration(set, "some_duration_1", 5*time.Second, "Use it or lose it")
set.Set("some_duration_1", "10s")
for i := 0; i < b.N; i++ {
value.Get().Nanoseconds()
}
}
func Benchmark_Duration_Normal_get(b *testing.B) {
set := flag.NewFlagSet("foobar", flag.ContinueOnError)
valPtr := set.Duration("some_duration_1", 5*time.Second, "Use it or lose it")
set.Set("some_duration_1", "10s")
for i := 0; i < b.N; i++ {
(*valPtr).Nanoseconds()
}
}