diff --git a/roomserver/storage/postgres/invite_table.go b/roomserver/storage/postgres/invite_table.go
index 176c16e48..4cddfe2e9 100644
--- a/roomserver/storage/postgres/invite_table.go
+++ b/roomserver/storage/postgres/invite_table.go
@@ -81,12 +81,12 @@ type inviteStatements struct {
 	updateInviteRetiredStmt             *sql.Stmt
 }
 
-func createInvitesTable(db *sql.DB) error {
+func CreateInvitesTable(db *sql.DB) error {
 	_, err := db.Exec(inviteSchema)
 	return err
 }
 
-func prepareInvitesTable(db *sql.DB) (tables.Invites, error) {
+func PrepareInvitesTable(db *sql.DB) (tables.Invites, error) {
 	s := &inviteStatements{}
 
 	return s, sqlutil.StatementList{
@@ -127,8 +127,8 @@ func (s *inviteStatements) UpdateInviteRetired(
 	defer internal.CloseAndLogIfError(ctx, rows, "updateInviteRetired: rows.close() failed")
 
 	var eventIDs []string
+	var inviteEventID string
 	for rows.Next() {
-		var inviteEventID string
 		if err = rows.Scan(&inviteEventID); err != nil {
 			return nil, err
 		}
@@ -152,9 +152,9 @@ func (s *inviteStatements) SelectInviteActiveForUserInRoom(
 	defer internal.CloseAndLogIfError(ctx, rows, "selectInviteActiveForUserInRoom: rows.close() failed")
 	var result []types.EventStateKeyNID
 	var eventIDs []string
+	var inviteEventID string
+	var senderUserNID int64
 	for rows.Next() {
-		var inviteEventID string
-		var senderUserNID int64
 		if err := rows.Scan(&inviteEventID, &senderUserNID); err != nil {
 			return nil, nil, err
 		}
diff --git a/roomserver/storage/postgres/storage.go b/roomserver/storage/postgres/storage.go
index da8d25848..27b69348b 100644
--- a/roomserver/storage/postgres/storage.go
+++ b/roomserver/storage/postgres/storage.go
@@ -95,7 +95,7 @@ func (d *Database) create(db *sql.DB) error {
 	if err := createRoomAliasesTable(db); err != nil {
 		return err
 	}
-	if err := createInvitesTable(db); err != nil {
+	if err := CreateInvitesTable(db); err != nil {
 		return err
 	}
 	if err := createMembershipTable(db); err != nil {
@@ -148,7 +148,7 @@ func (d *Database) prepare(db *sql.DB, writer sqlutil.Writer, cache caching.Room
 	if err != nil {
 		return err
 	}
-	invites, err := prepareInvitesTable(db)
+	invites, err := PrepareInvitesTable(db)
 	if err != nil {
 		return err
 	}
diff --git a/roomserver/storage/sqlite3/invite_table.go b/roomserver/storage/sqlite3/invite_table.go
index d54d313a9..e051d63af 100644
--- a/roomserver/storage/sqlite3/invite_table.go
+++ b/roomserver/storage/sqlite3/invite_table.go
@@ -69,12 +69,12 @@ type inviteStatements struct {
 	selectInvitesAboutToRetireStmt      *sql.Stmt
 }
 
-func createInvitesTable(db *sql.DB) error {
+func CreateInvitesTable(db *sql.DB) error {
 	_, err := db.Exec(inviteSchema)
 	return err
 }
 
-func prepareInvitesTable(db *sql.DB) (tables.Invites, error) {
+func PrepareInvitesTable(db *sql.DB) (tables.Invites, error) {
 	s := &inviteStatements{
 		db: db,
 	}
@@ -119,8 +119,8 @@ func (s *inviteStatements) UpdateInviteRetired(
 		return
 	}
 	defer internal.CloseAndLogIfError(ctx, rows, "UpdateInviteRetired: rows.close() failed")
+	var inviteEventID string
 	for rows.Next() {
-		var inviteEventID string
 		if err = rows.Scan(&inviteEventID); err != nil {
 			return
 		}
@@ -147,9 +147,9 @@ func (s *inviteStatements) SelectInviteActiveForUserInRoom(
 	defer internal.CloseAndLogIfError(ctx, rows, "selectInviteActiveForUserInRoom: rows.close() failed")
 	var result []types.EventStateKeyNID
 	var eventIDs []string
+	var eventID string
+	var senderUserNID int64
 	for rows.Next() {
-		var eventID string
-		var senderUserNID int64
 		if err := rows.Scan(&eventID, &senderUserNID); err != nil {
 			return nil, nil, err
 		}
diff --git a/roomserver/storage/sqlite3/storage.go b/roomserver/storage/sqlite3/storage.go
index e6cf1a53f..810763394 100644
--- a/roomserver/storage/sqlite3/storage.go
+++ b/roomserver/storage/sqlite3/storage.go
@@ -104,7 +104,7 @@ func (d *Database) create(db *sql.DB) error {
 	if err := createRoomAliasesTable(db); err != nil {
 		return err
 	}
-	if err := createInvitesTable(db); err != nil {
+	if err := CreateInvitesTable(db); err != nil {
 		return err
 	}
 	if err := createMembershipTable(db); err != nil {
@@ -157,7 +157,7 @@ func (d *Database) prepare(db *sql.DB, writer sqlutil.Writer, cache caching.Room
 	if err != nil {
 		return err
 	}
-	invites, err := prepareInvitesTable(db)
+	invites, err := PrepareInvitesTable(db)
 	if err != nil {
 		return err
 	}
diff --git a/roomserver/storage/tables/invite_table_test.go b/roomserver/storage/tables/invite_table_test.go
new file mode 100644
index 000000000..a93de23da
--- /dev/null
+++ b/roomserver/storage/tables/invite_table_test.go
@@ -0,0 +1,90 @@
+package tables_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/matrix-org/dendrite/internal/sqlutil"
+	"github.com/matrix-org/dendrite/roomserver/storage/postgres"
+	"github.com/matrix-org/dendrite/roomserver/storage/sqlite3"
+	"github.com/matrix-org/dendrite/roomserver/storage/tables"
+	"github.com/matrix-org/dendrite/roomserver/types"
+	"github.com/matrix-org/dendrite/setup/config"
+	"github.com/matrix-org/dendrite/test"
+	"github.com/matrix-org/util"
+	"github.com/stretchr/testify/assert"
+)
+
+func mustCreateInviteTable(t *testing.T, dbType test.DBType) (tables.Invites, func()) {
+	t.Helper()
+	connStr, close := test.PrepareDBConnectionString(t, dbType)
+	db, err := sqlutil.Open(&config.DatabaseOptions{
+		ConnectionString: config.DataSource(connStr),
+	}, sqlutil.NewExclusiveWriter())
+	assert.NoError(t, err)
+	var tab tables.Invites
+	switch dbType {
+	case test.DBTypePostgres:
+		err = postgres.CreateInvitesTable(db)
+		assert.NoError(t, err)
+		tab, err = postgres.PrepareInvitesTable(db)
+	case test.DBTypeSQLite:
+		err = sqlite3.CreateInvitesTable(db)
+		assert.NoError(t, err)
+		tab, err = sqlite3.PrepareInvitesTable(db)
+	}
+	assert.NoError(t, err)
+
+	return tab, close
+}
+
+func TestInviteTable(t *testing.T) {
+	ctx := context.Background()
+	test.WithAllDatabases(t, func(t *testing.T, dbType test.DBType) {
+		tab, close := mustCreateInviteTable(t, dbType)
+		defer close()
+		eventID1 := util.RandomString(16)
+		newInvite, err := tab.InsertInviteEvent(ctx, nil, eventID1, 1, 1, 2, []byte(""))
+		assert.NoError(t, err)
+		assert.True(t, newInvite)
+
+		// Try adding the same invite again
+		newInvite, err = tab.InsertInviteEvent(ctx, nil, eventID1, 1, 1, 2, []byte(""))
+		assert.NoError(t, err)
+		assert.False(t, newInvite)
+
+		// Add another invite for this room
+		eventID2 := util.RandomString(16)
+		newInvite, err = tab.InsertInviteEvent(ctx, nil, eventID2, 1, 1, 2, []byte(""))
+		assert.NoError(t, err)
+		assert.True(t, newInvite)
+
+		// Add another invite for a different user
+		eventID := util.RandomString(16)
+		newInvite, err = tab.InsertInviteEvent(ctx, nil, eventID, 3, 1, 2, []byte(""))
+		assert.NoError(t, err)
+		assert.True(t, newInvite)
+
+		stateKeyNIDs, eventIDs, err := tab.SelectInviteActiveForUserInRoom(ctx, nil, 1, 1)
+		assert.NoError(t, err)
+		assert.Equal(t, []string{eventID1, eventID2}, eventIDs)
+		assert.Equal(t, []types.EventStateKeyNID{2, 2}, stateKeyNIDs)
+
+		// retire the invite
+		retiredEventIDs, err := tab.UpdateInviteRetired(ctx, nil, 1, 1)
+		assert.NoError(t, err)
+		assert.Equal(t, []string{eventID1, eventID2}, retiredEventIDs)
+
+		// This should now be empty
+		stateKeyNIDs, eventIDs, err = tab.SelectInviteActiveForUserInRoom(ctx, nil, 1, 1)
+		assert.NoError(t, err)
+		assert.Empty(t, eventIDs)
+		assert.Empty(t, stateKeyNIDs)
+
+		// Non-existent targetUserNID
+		stateKeyNIDs, eventIDs, err = tab.SelectInviteActiveForUserInRoom(ctx, nil, 10, 1)
+		assert.NoError(t, err)
+		assert.Empty(t, stateKeyNIDs)
+		assert.Empty(t, eventIDs)
+	})
+}