CloudMigrations: Don't migrate dashboards that are soft-deleted (#90454)

* skip dashboards that are soft-deleted while building snapshots

* add unit test

pkg/services/cloudmigration/cloudmigrationimpl/cloudmigration_test.go

@@ -5,6 +5,7 @@ import (
 	"os"
 	"path/filepath"
 	"testing"
+	"time"
 
 	"github.com/google/uuid"
 	"github.com/grafana/grafana/pkg/api/routing"
@@ -350,6 +351,36 @@ func Test_OnlyQueriesStatusFromGMSWhenRequired(t *testing.T) {
 	}
 }
 
+func Test_DeletedDashboardsNotMigrated(t *testing.T) {
+	s := setUpServiceTest(t, false).(*Service)
+	// modify what the mock returns for just this test case
+	dashMock := s.dashboardService.(*dashboards.FakeDashboardService)
+	dashMock.On("GetAllDashboards", mock.Anything).Return(
+		[]*dashboards.Dashboard{
+			{
+				UID:  "1",
+				Data: simplejson.New(),
+			},
+			{
+				UID:     "2",
+				Data:    simplejson.New(),
+				Deleted: time.Now(),
+			},
+		},
+		nil,
+	)
+
+	data, err := s.getMigrationDataJSON(context.TODO(), &user.SignedInUser{OrgID: 1})
+	assert.NoError(t, err)
+	dashCount := 0
+	for _, it := range data.Items {
+		if it.Type == cloudmigration.DashboardDataType {
+			dashCount++
+		}
+	}
+	assert.Equal(t, 1, dashCount)
+}
+
 func ctxWithSignedInUser() context.Context {
 	c := &contextmodel.ReqContext{
 		SignedInUser: &user.SignedInUser{OrgID: 1},
@@ -400,7 +431,9 @@ func setUpServiceTest(t *testing.T, withDashboardMock bool) cloudmigration.Servi
 
 	s, err := ProvideService(
 		cfg,
-		featuremgmt.WithFeatures(featuremgmt.FlagOnPremToCloudMigrations),
+		featuremgmt.WithFeatures(
+			featuremgmt.FlagOnPremToCloudMigrations,
+			featuremgmt.FlagDashboardRestore),
 		sqlStore,
 		dsService,
 		secretsService,