Schedule: support Second precision as adverted

Updates the schedule API to support seconds precision, as is advertised.

Signed-off-by: joshvanl <me@joshvanl.dev>

internal/scheduler/builder.go

@@ -26,12 +26,24 @@ type Builder struct {
 	// clock is the clock used to get the current time. Used for manipulating
 	// time in tests.
 	clock clock.Clock
+
+	// parser parses job schedules.
+	parser cron.Parser
 }
 
 // NewBuilder creates a new scheduler builder.
 func NewBuilder() *Builder {
 	return &Builder{
 		clock: clock.RealClock{},
+		parser: cron.NewParser(
+			cron.Second |
+				cron.Minute |
+				cron.Hour |
+				cron.Dom |
+				cron.Month |
+				cron.Dow |
+				cron.Descriptor,
+		),
 	}
 }
 
@@ -43,7 +55,8 @@ func (b *Builder) Schedule(job *stored.Job) (Interface, error) {
 		}, nil
 	}
 
-	cronSched, err := cron.ParseStandard(job.GetJob().GetSchedule())
+	cronSched, err := b.parser.Parse(job.GetJob().GetSchedule())
+	//cronSched, err := cron.ParseStandard(job.GetJob().GetSchedule())
 	if err != nil {
 		return nil, err
 	}

internal/scheduler/builder_test.go

@@ -29,6 +29,16 @@ func Test_Schedule(t *testing.T) {
 
 	cronSched, err := cron.ParseStandard("@every 1h")
 	require.NoError(t, err)
+	cronSched2, err := cron.NewParser(
+		cron.Second |
+			cron.Minute |
+			cron.Hour |
+			cron.Dom |
+			cron.Month |
+			cron.Dow |
+			cron.Descriptor,
+	).Parse("1 2 3 4 5 6")
+	require.NoError(t, err)
 
 	tests := map[string]struct {
 		job          *stored.Job
@@ -82,6 +92,25 @@ func Test_Schedule(t *testing.T) {
 			},
 			expErr: false,
 		},
+		"if schedule with cron, expect repeats with exp nil": {
+			job: &stored.Job{
+				Begin: &stored.Job_Start{
+					Start: timestamppb.New(now),
+				},
+				Expiration: nil,
+				Job: &api.Job{
+					Schedule: ptr.Of("1 2 3 4 5 6"),
+					Repeats:  ptr.Of(uint32(100)),
+				},
+			},
+			expScheduler: &repeats{
+				start: ptr.Of(now),
+				exp:   nil,
+				cron:  cronSched2,
+				total: ptr.Of(uint32(100)),
+			},
+			expErr: false,
+		},
 		"if bad schedule string, expect error": {
 			job: &stored.Job{
 				Begin: &stored.Job_Start{
@@ -102,7 +131,8 @@ func Test_Schedule(t *testing.T) {
 		testInLoop := test
 		t.Run(name, func(t *testing.T) {
 			t.Parallel()
-			builder := &Builder{clock: clock}
+			builder := NewBuilder()
+			builder.clock = clock
 			gotScheduler, gotErr := builder.Schedule(testInLoop.job)
 			assert.Equal(t, testInLoop.expScheduler, gotScheduler)
 			assert.Equal(t, testInLoop.expErr, gotErr != nil, "%v", gotErr)