mirror of
https://github.com/restic/restic.git
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Make restic forget --keep-within accept time ranges measured in hours and choose accordingly which snapshots to keep and which to forget. Add relative tests.
272 lines
9.3 KiB
Go
272 lines
9.3 KiB
Go
package restic_test
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"path/filepath"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/google/go-cmp/cmp/cmpopts"
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"github.com/restic/restic/internal/restic"
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)
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func parseTimeUTC(s string) time.Time {
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t, err := time.Parse("2006-01-02 15:04:05", s)
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if err != nil {
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panic(err)
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}
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return t.UTC()
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}
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func parseDuration(s string) restic.Duration {
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d, err := restic.ParseDuration(s)
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if err != nil {
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panic(err)
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}
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return d
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}
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func TestExpireSnapshotOps(t *testing.T) {
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data := []struct {
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expectEmpty bool
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expectSum int
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p *restic.ExpirePolicy
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}{
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{true, 0, &restic.ExpirePolicy{}},
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{true, 0, &restic.ExpirePolicy{Tags: []restic.TagList{}}},
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{false, 22, &restic.ExpirePolicy{Daily: 7, Weekly: 2, Monthly: 3, Yearly: 10}},
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}
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for i, d := range data {
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isEmpty := d.p.Empty()
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if isEmpty != d.expectEmpty {
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t.Errorf("empty test %v: wrong result, want:\n %#v\ngot:\n %#v", i, d.expectEmpty, isEmpty)
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}
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hasSum := d.p.Sum()
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if hasSum != d.expectSum {
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t.Errorf("sum test %v: wrong result, want:\n %#v\ngot:\n %#v", i, d.expectSum, hasSum)
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}
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}
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}
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// ApplyPolicyResult is used to marshal/unmarshal the golden files for
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// TestApplyPolicy.
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type ApplyPolicyResult struct {
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Keep restic.Snapshots `json:"keep"`
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Reasons []restic.KeepReason `json:"reasons,omitempty"`
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}
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func loadGoldenFile(t testing.TB, filename string) (res ApplyPolicyResult) {
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buf, err := ioutil.ReadFile(filename)
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if err != nil {
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t.Fatalf("error loading golden file %v: %v", filename, err)
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}
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err = json.Unmarshal(buf, &res)
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if err != nil {
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t.Fatalf("error unmarshalling golden file %v: %v", filename, err)
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}
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return res
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}
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func saveGoldenFile(t testing.TB, filename string, keep restic.Snapshots, reasons []restic.KeepReason) {
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res := ApplyPolicyResult{
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Keep: keep,
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Reasons: reasons,
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}
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buf, err := json.MarshalIndent(res, "", " ")
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if err != nil {
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t.Fatalf("error marshaling result: %v", err)
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}
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if err = ioutil.WriteFile(filename, buf, 0644); err != nil {
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t.Fatalf("unable to update golden file: %v", err)
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}
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}
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func TestApplyPolicy(t *testing.T) {
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var testExpireSnapshots = restic.Snapshots{
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{Time: parseTimeUTC("2014-09-01 10:20:30")},
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{Time: parseTimeUTC("2014-09-02 10:20:30")},
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{Time: parseTimeUTC("2014-09-05 10:20:30")},
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{Time: parseTimeUTC("2014-09-06 10:20:30")},
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{Time: parseTimeUTC("2014-09-08 10:20:30")},
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{Time: parseTimeUTC("2014-09-09 10:20:30")},
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{Time: parseTimeUTC("2014-09-10 10:20:30")},
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{Time: parseTimeUTC("2014-09-11 10:20:30")},
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{Time: parseTimeUTC("2014-09-20 10:20:30")},
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{Time: parseTimeUTC("2014-09-22 10:20:30")},
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{Time: parseTimeUTC("2014-08-08 10:20:30")},
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{Time: parseTimeUTC("2014-08-10 10:20:30")},
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{Time: parseTimeUTC("2014-08-12 10:20:30")},
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{Time: parseTimeUTC("2014-08-13 10:20:30")},
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{Time: parseTimeUTC("2014-08-13 10:20:30.1")},
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{Time: parseTimeUTC("2014-08-15 10:20:30")},
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{Time: parseTimeUTC("2014-08-18 10:20:30")},
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{Time: parseTimeUTC("2014-08-20 10:20:30")},
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{Time: parseTimeUTC("2014-08-21 10:20:30")},
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{Time: parseTimeUTC("2014-08-22 10:20:30")},
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{Time: parseTimeUTC("2014-10-01 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-02 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-05 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-06 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-08 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-09 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-10 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-11 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-20 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-10-22 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-11-08 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-11-10 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-11-12 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-11-13 10:20:30"), Tags: []string{"foo"}},
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{Time: parseTimeUTC("2014-11-13 10:20:30.1"), Tags: []string{"bar"}},
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{Time: parseTimeUTC("2014-11-15 10:20:30"), Tags: []string{"foo", "bar"}},
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{Time: parseTimeUTC("2014-11-18 10:20:30")},
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{Time: parseTimeUTC("2014-11-20 10:20:30")},
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{Time: parseTimeUTC("2014-11-21 10:20:30")},
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{Time: parseTimeUTC("2014-11-22 10:20:30")},
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{Time: parseTimeUTC("2015-09-01 10:20:30")},
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{Time: parseTimeUTC("2015-09-02 10:20:30")},
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{Time: parseTimeUTC("2015-09-05 10:20:30")},
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{Time: parseTimeUTC("2015-09-06 10:20:30")},
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{Time: parseTimeUTC("2015-09-08 10:20:30")},
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{Time: parseTimeUTC("2015-09-09 10:20:30")},
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{Time: parseTimeUTC("2015-09-10 10:20:30")},
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{Time: parseTimeUTC("2015-09-11 10:20:30")},
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{Time: parseTimeUTC("2015-09-20 10:20:30")},
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{Time: parseTimeUTC("2015-09-22 10:20:30")},
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{Time: parseTimeUTC("2015-08-08 10:20:30")},
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{Time: parseTimeUTC("2015-08-10 10:20:30")},
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{Time: parseTimeUTC("2015-08-12 10:20:30")},
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{Time: parseTimeUTC("2015-08-13 10:20:30")},
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{Time: parseTimeUTC("2015-08-13 10:20:30.1")},
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{Time: parseTimeUTC("2015-08-15 10:20:30")},
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{Time: parseTimeUTC("2015-08-18 10:20:30")},
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{Time: parseTimeUTC("2015-08-20 10:20:30")},
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{Time: parseTimeUTC("2015-08-21 10:20:30")},
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{Time: parseTimeUTC("2015-08-22 10:20:30")},
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{Time: parseTimeUTC("2015-10-01 10:20:30")},
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{Time: parseTimeUTC("2015-10-02 10:20:30")},
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{Time: parseTimeUTC("2015-10-05 10:20:30")},
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{Time: parseTimeUTC("2015-10-06 10:20:30")},
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{Time: parseTimeUTC("2015-10-08 10:20:30")},
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{Time: parseTimeUTC("2015-10-09 10:20:30")},
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{Time: parseTimeUTC("2015-10-10 10:20:30")},
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{Time: parseTimeUTC("2015-10-11 10:20:30")},
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{Time: parseTimeUTC("2015-10-20 10:20:30")},
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{Time: parseTimeUTC("2015-10-22 10:20:30")},
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{Time: parseTimeUTC("2015-10-22 10:20:30")},
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{Time: parseTimeUTC("2015-10-22 10:20:30"), Tags: []string{"foo", "bar"}},
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{Time: parseTimeUTC("2015-10-22 10:20:30"), Tags: []string{"foo", "bar"}},
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{Time: parseTimeUTC("2015-10-22 10:20:30"), Tags: []string{"foo", "bar"}, Paths: []string{"path1", "path2"}},
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{Time: parseTimeUTC("2015-11-08 10:20:30")},
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{Time: parseTimeUTC("2015-11-10 10:20:30")},
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{Time: parseTimeUTC("2015-11-12 10:20:30")},
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{Time: parseTimeUTC("2015-11-13 10:20:30")},
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{Time: parseTimeUTC("2015-11-13 10:20:30.1")},
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{Time: parseTimeUTC("2015-11-15 10:20:30")},
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{Time: parseTimeUTC("2015-11-18 10:20:30")},
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{Time: parseTimeUTC("2015-11-20 10:20:30")},
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{Time: parseTimeUTC("2015-11-21 10:20:30")},
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{Time: parseTimeUTC("2015-11-22 10:20:30")},
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{Time: parseTimeUTC("2016-01-01 01:02:03")},
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{Time: parseTimeUTC("2016-01-01 01:03:03")},
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{Time: parseTimeUTC("2016-01-01 07:08:03")},
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{Time: parseTimeUTC("2016-01-03 07:02:03")},
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{Time: parseTimeUTC("2016-01-04 10:23:03")},
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{Time: parseTimeUTC("2016-01-04 11:23:03")},
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{Time: parseTimeUTC("2016-01-04 12:23:03")},
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{Time: parseTimeUTC("2016-01-04 12:24:03")},
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{Time: parseTimeUTC("2016-01-04 12:28:03")},
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{Time: parseTimeUTC("2016-01-04 12:30:03")},
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{Time: parseTimeUTC("2016-01-04 16:23:03")},
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{Time: parseTimeUTC("2016-01-05 09:02:03")},
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{Time: parseTimeUTC("2016-01-06 08:02:03")},
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{Time: parseTimeUTC("2016-01-07 10:02:03")},
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{Time: parseTimeUTC("2016-01-08 20:02:03")},
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{Time: parseTimeUTC("2016-01-09 21:02:03")},
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{Time: parseTimeUTC("2016-01-12 21:02:03")},
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{Time: parseTimeUTC("2016-01-12 21:08:03")},
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{Time: parseTimeUTC("2016-01-18 12:02:03")},
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}
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var tests = []restic.ExpirePolicy{
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{},
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{Last: 10},
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{Last: 15},
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{Last: 99},
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{Last: 200},
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{Hourly: 20},
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{Daily: 3},
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{Daily: 10},
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{Daily: 30},
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{Last: 5, Daily: 5},
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{Last: 2, Daily: 10},
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{Weekly: 2},
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{Weekly: 4},
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{Daily: 3, Weekly: 4},
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{Monthly: 6},
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{Daily: 2, Weekly: 2, Monthly: 6},
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{Yearly: 10},
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{Daily: 7, Weekly: 2, Monthly: 3, Yearly: 10},
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{Tags: []restic.TagList{{"foo"}}},
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{Tags: []restic.TagList{{"foo", "bar"}}},
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{Tags: []restic.TagList{{"foo"}, {"bar"}}},
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{Within: parseDuration("1d")},
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{Within: parseDuration("2d")},
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{Within: parseDuration("7d")},
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{Within: parseDuration("1m")},
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{Within: parseDuration("1m14d")},
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{Within: parseDuration("1y1d1m")},
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{Within: parseDuration("13d23h")},
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{Within: parseDuration("2m2h")},
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{Within: parseDuration("1y2m3d3h")},
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}
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for i, p := range tests {
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t.Run("", func(t *testing.T) {
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keep, remove, reasons := restic.ApplyPolicy(testExpireSnapshots, p)
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if len(keep)+len(remove) != len(testExpireSnapshots) {
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t.Errorf("len(keep)+len(remove) = %d != len(testExpireSnapshots) = %d",
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len(keep)+len(remove), len(testExpireSnapshots))
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}
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if p.Sum() > 0 && len(keep) > p.Sum() {
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t.Errorf("not enough snapshots removed: policy allows %v snapshots to remain, but ended up with %v",
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p.Sum(), len(keep))
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}
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if len(keep) != len(reasons) {
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t.Errorf("got %d keep reasons for %d snapshots to keep, these must be equal", len(reasons), len(keep))
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}
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goldenFilename := filepath.Join("testdata", fmt.Sprintf("policy_keep_snapshots_%d", i))
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if *updateGoldenFiles {
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saveGoldenFile(t, goldenFilename, keep, reasons)
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}
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want := loadGoldenFile(t, goldenFilename)
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cmpOpts := cmpopts.IgnoreUnexported(restic.Snapshot{})
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if !cmp.Equal(want.Keep, keep, cmpOpts) {
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t.Error(cmp.Diff(want.Keep, keep, cmpOpts))
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}
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if !cmp.Equal(want.Reasons, reasons, cmpOpts) {
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t.Error(cmp.Diff(want.Reasons, reasons, cmpOpts))
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}
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})
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}
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}
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