Add CreateWorkspaceInstanceUsageRecords to dbtest

To populate the test db with instance usage records.

Author: Andrew Farries

components/usage/pkg/db/dbtest/workspace_instance_usage.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2022 Gitpod GmbH. All rights reserved.
+// Licensed under the GNU Affero General Public License (AGPL).
+// See License-AGPL.txt in the project root for license information.
+
+package dbtest
+
+import (
+	"github.com/gitpod-io/gitpod/usage/pkg/db"
+	"github.com/stretchr/testify/require"
+	"gorm.io/gorm"
+	"testing"
+)
+
+func CreateWorkspaceInstanceUsageRecords(t *testing.T, conn *gorm.DB, instancesUsages ...db.WorkspaceInstanceUsage) []db.WorkspaceInstanceUsage {
+	t.Helper()
+
+	var ids []string
+	for _, instanceUsage := range instancesUsages {
+		ids = append(ids, instanceUsage.InstanceID.String())
+	}
+
+	require.NoError(t, conn.CreateInBatches(&instancesUsages, 1000).Error)
+
+	t.Cleanup(func() {
+		require.NoError(t, conn.Where(ids).Delete(&db.WorkspaceInstanceUsage{}).Error)
+	})
+
+	return instancesUsages
+}