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Fix test failure in different local time zones

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TestParseDuration relied on an elapsed time calculation which
would vary based on the system local time. Fix the test by not relying
on the system time location. Also make the test more deterministic
by injecting time in tests rather than using system time.

Fixes #4529.
This commit is contained in:
Zach Kipp 2020-09-06 16:50:16 -07:00 committed by Nick Craig-Wood
parent cdaea62932
commit 6156f90601
2 changed files with 25 additions and 9 deletions
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12
fs/parseduration.go
View File

@ -88,8 +88,9 @@ func parseDurationDates(age string, epoch time.Time) (t time.Duration, err error
return t, err
}
// ParseDuration parses a duration string. Accept ms|s|m|h|d|w|M|y suffixes. Defaults to second if not provided
func ParseDuration(age string) (d time.Duration, err error) {
// parseDurationFromNow parses a duration string. Allows ParseDuration to match the time
// package and easier testing within the fs package.
func parseDurationFromNow(age string, getNow func() time.Time) (d time.Duration, err error) {
if age == "off" {
return time.Duration(DurationOff), nil
}
@ -105,7 +106,7 @@ func ParseDuration(age string) (d time.Duration, err error) {
return d, nil
}
d, err = parseDurationDates(age, time.Now())
d, err = parseDurationDates(age, getNow())
if err == nil {
return d, nil
}
@ -113,6 +114,11 @@ func ParseDuration(age string) (d time.Duration, err error) {
return d, err
}
// ParseDuration parses a duration string. Accept ms|s|m|h|d|w|M|y suffixes. Defaults to second if not provided
func ParseDuration(age string) (time.Duration, error) {
return parseDurationFromNow(age, time.Now)
}
// ReadableString parses d into a human readable duration.
// Based on https://github.com/hako/durafmt
func (d Duration) ReadableString() string {

22
fs/parseduration_test.go
View File

@ -15,6 +15,11 @@ import (
var _ pflag.Value = (*Duration)(nil)
func TestParseDuration(t *testing.T) {
now := time.Date(2020, 9, 5, 8, 15, 5, 250, time.UTC)
getNow := func() time.Time {
return now
}
for _, test := range []struct {
in string
want time.Duration
@ -37,12 +42,12 @@ func TestParseDuration(t *testing.T) {
{"1x", 0, true},
{"off", time.Duration(DurationOff), false},
{"1h2m3s", time.Hour + 2*time.Minute + 3*time.Second, false},
{"2001-02-03", time.Since(time.Date(2001, 2, 3, 0, 0, 0, 0, time.UTC)), false},
{"2001-02-03 10:11:12", time.Since(time.Date(2001, 2, 3, 10, 11, 12, 0, time.UTC)), false},
{"2001-02-03T10:11:12", time.Since(time.Date(2001, 2, 3, 10, 11, 12, 0, time.UTC)), false},
{"2001-02-03T10:11:12.123Z", time.Since(time.Date(2001, 2, 3, 10, 11, 12, 123, time.UTC)), false},
{"2001-02-03", now.Sub(time.Date(2001, 2, 3, 0, 0, 0, 0, time.UTC)), false},
{"2001-02-03 10:11:12", now.Sub(time.Date(2001, 2, 3, 10, 11, 12, 0, time.UTC)), false},
{"2001-02-03T10:11:12", now.Sub(time.Date(2001, 2, 3, 10, 11, 12, 0, time.UTC)), false},
{"2001-02-03T10:11:12.123Z", now.Sub(time.Date(2001, 2, 3, 10, 11, 12, 123, time.UTC)), false},
} {
duration, err := ParseDuration(test.in)
duration, err := parseDurationFromNow(test.in, getNow)
if test.err {
require.Error(t, err)
} else {
@ -58,6 +63,11 @@ func TestParseDuration(t *testing.T) {
}
func TestDurationString(t *testing.T) {
now := time.Date(2020, 9, 5, 8, 15, 5, 250, time.UTC)
getNow := func() time.Time {
return now
}
for _, test := range []struct {
in time.Duration
want string
@ -88,7 +98,7 @@ func TestDurationString(t *testing.T) {
got := Duration(test.in).String()
assert.Equal(t, test.want, got)
// Test the reverse
reverse, err := ParseDuration(test.want)
reverse, err := parseDurationFromNow(test.want, getNow)
assert.NoError(t, err)
assert.Equal(t, test.in, reverse)
}