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restic/src/restic/snapshot_filter_test.go

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package restic_test
import (
"encoding/json"
"fmt"
"io/ioutil"
"path/filepath"
"reflect"
"restic"
"testing"
"time"
)
func parseTimeUTC(s string) time.Time {
t, err := time.Parse("2006-01-02 15:04:05", s)
if err != nil {
panic(err)
}
return t.UTC()
}
func TestExpireSnapshotOps(t *testing.T) {
data := []struct {
expectEmpty bool
expectSum int
p *restic.ExpirePolicy
}{
{true, 0, &restic.ExpirePolicy{}},
{true, 0, &restic.ExpirePolicy{Tags: []string{}}},
{false, 22, &restic.ExpirePolicy{Daily: 7, Weekly: 2, Monthly: 3, Yearly: 10}},
}
for i, d := range data {
isEmpty := d.p.Empty()
if isEmpty != d.expectEmpty {
t.Errorf("empty test %v: wrong result, want:\n %#v\ngot:\n %#v", i, d.expectEmpty, isEmpty)
}
hasSum := d.p.Sum()
if hasSum != d.expectSum {
t.Errorf("sum test %v: wrong result, want:\n %#v\ngot:\n %#v", i, d.expectSum, hasSum)
}
}
}
var testExpireSnapshots = restic.Snapshots{
{Time: parseTimeUTC("2014-09-01 10:20:30")},
{Time: parseTimeUTC("2014-09-02 10:20:30")},
{Time: parseTimeUTC("2014-09-05 10:20:30")},
{Time: parseTimeUTC("2014-09-06 10:20:30")},
{Time: parseTimeUTC("2014-09-08 10:20:30")},
{Time: parseTimeUTC("2014-09-09 10:20:30")},
{Time: parseTimeUTC("2014-09-10 10:20:30")},
{Time: parseTimeUTC("2014-09-11 10:20:30")},
{Time: parseTimeUTC("2014-09-20 10:20:30")},
{Time: parseTimeUTC("2014-09-22 10:20:30")},
{Time: parseTimeUTC("2014-08-08 10:20:30")},
{Time: parseTimeUTC("2014-08-10 10:20:30")},
{Time: parseTimeUTC("2014-08-12 10:20:30")},
{Time: parseTimeUTC("2014-08-13 10:20:30")},
{Time: parseTimeUTC("2014-08-13 10:20:30.1")},
{Time: parseTimeUTC("2014-08-15 10:20:30")},
{Time: parseTimeUTC("2014-08-18 10:20:30")},
{Time: parseTimeUTC("2014-08-20 10:20:30")},
{Time: parseTimeUTC("2014-08-21 10:20:30")},
{Time: parseTimeUTC("2014-08-22 10:20:30")},
{Time: parseTimeUTC("2014-10-01 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-02 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-05 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-06 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-08 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-09 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-10 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-11 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-20 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-10-22 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-11-08 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-11-10 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-11-12 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-11-13 10:20:30"), Tags: []string{"foo"}},
{Time: parseTimeUTC("2014-11-13 10:20:30.1"), Tags: []string{"bar"}},
{Time: parseTimeUTC("2014-11-15 10:20:30"), Tags: []string{"foo", "bar"}},
{Time: parseTimeUTC("2014-11-18 10:20:30")},
{Time: parseTimeUTC("2014-11-20 10:20:30")},
{Time: parseTimeUTC("2014-11-21 10:20:30")},
{Time: parseTimeUTC("2014-11-22 10:20:30")},
{Time: parseTimeUTC("2015-09-01 10:20:30")},
{Time: parseTimeUTC("2015-09-02 10:20:30")},
{Time: parseTimeUTC("2015-09-05 10:20:30")},
{Time: parseTimeUTC("2015-09-06 10:20:30")},
{Time: parseTimeUTC("2015-09-08 10:20:30")},
{Time: parseTimeUTC("2015-09-09 10:20:30")},
{Time: parseTimeUTC("2015-09-10 10:20:30")},
{Time: parseTimeUTC("2015-09-11 10:20:30")},
{Time: parseTimeUTC("2015-09-20 10:20:30")},
{Time: parseTimeUTC("2015-09-22 10:20:30")},
{Time: parseTimeUTC("2015-08-08 10:20:30")},
{Time: parseTimeUTC("2015-08-10 10:20:30")},
{Time: parseTimeUTC("2015-08-12 10:20:30")},
{Time: parseTimeUTC("2015-08-13 10:20:30")},
{Time: parseTimeUTC("2015-08-13 10:20:30.1")},
{Time: parseTimeUTC("2015-08-15 10:20:30")},
{Time: parseTimeUTC("2015-08-18 10:20:30")},
{Time: parseTimeUTC("2015-08-20 10:20:30")},
{Time: parseTimeUTC("2015-08-21 10:20:30")},
{Time: parseTimeUTC("2015-08-22 10:20:30")},
{Time: parseTimeUTC("2015-10-01 10:20:30")},
{Time: parseTimeUTC("2015-10-02 10:20:30")},
{Time: parseTimeUTC("2015-10-05 10:20:30")},
{Time: parseTimeUTC("2015-10-06 10:20:30")},
{Time: parseTimeUTC("2015-10-08 10:20:30")},
{Time: parseTimeUTC("2015-10-09 10:20:30")},
{Time: parseTimeUTC("2015-10-10 10:20:30")},
{Time: parseTimeUTC("2015-10-11 10:20:30")},
{Time: parseTimeUTC("2015-10-20 10:20:30")},
{Time: parseTimeUTC("2015-10-22 10:20:30")},
{Time: parseTimeUTC("2015-11-08 10:20:30")},
{Time: parseTimeUTC("2015-11-10 10:20:30")},
{Time: parseTimeUTC("2015-11-12 10:20:30")},
{Time: parseTimeUTC("2015-11-13 10:20:30")},
{Time: parseTimeUTC("2015-11-13 10:20:30.1")},
{Time: parseTimeUTC("2015-11-15 10:20:30")},
{Time: parseTimeUTC("2015-11-18 10:20:30")},
{Time: parseTimeUTC("2015-11-20 10:20:30")},
{Time: parseTimeUTC("2015-11-21 10:20:30")},
{Time: parseTimeUTC("2015-11-22 10:20:30")},
{Time: parseTimeUTC("2016-01-01 01:02:03")},
{Time: parseTimeUTC("2016-01-01 01:03:03")},
{Time: parseTimeUTC("2016-01-01 07:08:03")},
{Time: parseTimeUTC("2016-01-03 07:02:03")},
{Time: parseTimeUTC("2016-01-04 10:23:03")},
{Time: parseTimeUTC("2016-01-04 11:23:03")},
{Time: parseTimeUTC("2016-01-04 12:23:03")},
{Time: parseTimeUTC("2016-01-04 12:24:03")},
{Time: parseTimeUTC("2016-01-04 12:28:03")},
{Time: parseTimeUTC("2016-01-04 12:30:03")},
{Time: parseTimeUTC("2016-01-04 16:23:03")},
{Time: parseTimeUTC("2016-01-05 09:02:03")},
{Time: parseTimeUTC("2016-01-06 08:02:03")},
{Time: parseTimeUTC("2016-01-07 10:02:03")},
{Time: parseTimeUTC("2016-01-08 20:02:03")},
{Time: parseTimeUTC("2016-01-09 21:02:03")},
{Time: parseTimeUTC("2016-01-12 21:02:03")},
{Time: parseTimeUTC("2016-01-12 21:08:03")},
{Time: parseTimeUTC("2016-01-18 12:02:03")},
}
var expireTests = []restic.ExpirePolicy{
{},
{Last: 10},
{Last: 15},
{Last: 99},
{Last: 200},
{Hourly: 20},
{Daily: 3},
{Daily: 10},
{Daily: 30},
{Last: 5, Daily: 5},
{Last: 2, Daily: 10},
{Weekly: 2},
{Weekly: 4},
{Daily: 3, Weekly: 4},
{Monthly: 6},
{Daily: 2, Weekly: 2, Monthly: 6},
{Yearly: 10},
{Daily: 7, Weekly: 2, Monthly: 3, Yearly: 10},
{Tags: []string{"foo"}},
{Tags: []string{"foo", "bar"}},
}
func TestApplyPolicy(t *testing.T) {
for i, p := range expireTests {
keep, remove := restic.ApplyPolicy(testExpireSnapshots, p)
t.Logf("test %d: returned keep %v, remove %v (of %v) expired snapshots for policy %v",
i, len(keep), len(remove), len(testExpireSnapshots), p)
if len(keep)+len(remove) != len(testExpireSnapshots) {
t.Errorf("test %d: len(keep)+len(remove) = %d != len(testExpireSnapshots) = %d",
i, len(keep)+len(remove), len(testExpireSnapshots))
}
if p.Sum() > 0 && len(keep) > p.Sum() {
t.Errorf("not enough snapshots removed: policy allows %v snapshots to remain, but ended up with %v",
p.Sum(), len(keep))
}
for _, sn := range keep {
t.Logf("test %d: keep snapshot at %v %s\n", i, sn.Time, sn.Tags)
}
for _, sn := range remove {
t.Logf("test %d: forget snapshot at %v %s\n", i, sn.Time, sn.Tags)
}
goldenFilename := filepath.Join("testdata", fmt.Sprintf("policy_keep_snapshots_%d", i))
if *updateGoldenFiles {
buf, err := json.MarshalIndent(keep, "", " ")
if err != nil {
t.Fatalf("error marshaling result: %v", err)
}
if err = ioutil.WriteFile(goldenFilename, buf, 0644); err != nil {
t.Fatalf("unable to update golden file: %v", err)
}
}
buf, err := ioutil.ReadFile(goldenFilename)
if err != nil {
t.Errorf("error loading golden file %v: %v", goldenFilename, err)
continue
}
var want restic.Snapshots
err = json.Unmarshal(buf, &want)
if err != nil {
t.Errorf("error unmarshalling golden file %v: %v", goldenFilename, err)
continue
}
if !reflect.DeepEqual(keep, want) {
t.Errorf("test %v: wrong result, want:\n %v\ngot:\n %v", i, want, keep)
continue
}
}
}
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