func TestRowReplication(t *testing.T) {
newConnection := myreplication.NewConnection()
serverId := uint32(2)
err := newConnection.ConnectAndAuth(HOST, PORT, REPLICATION_USERNAME, REPLICATION_PASSWORD)
if err != nil {
t.Fatal("Client not connected and not autentificate to master server with error:", err.Error())
}
pos, filename, err := newConnection.GetMasterStatus()
if err != nil {
t.Fatal("Master status fail: ", err.Error())
}
el, err := newConnection.StartBinlogDump(pos, filename, serverId)
if err != nil {
t.Fatal("Cant start bin log: ", err.Error())
}
events := el.GetEventChan()
go func() {
con, err := sql.Open("mysql", fmt.Sprintf(
"%s:%s@tcp(%s:%d)/%s",
REPLICATION_USERNAME,
REPLICATION_PASSWORD,
HOST,
PORT,
DATABASE,
))
defer con.Close()
if err != nil {
t.Fatal(err.Error())
}
_, err = con.Exec("TRUNCATE new_table")
if err != nil {
t.Fatal(err.Error())
}
query := (<-events).(*myreplication.QueryEvent).GetQuery()
expectedQuery := "TRUNCATE new_table"
if expectedQuery != query {
newConnection.Connection().Close()
t.Fatal("Got incorrect query", "expected", expectedQuery, "got", query)
}
maxId := 1
expectedTable := "new_table"
expectedSchema := "test"
t.Log("Write test")
con.Exec("INSERT INTO new_table(text_field, num_field) values(?,?)", "Hello!", 10)
expectedQuery = "BEGIN"
query = (<-events).(*myreplication.QueryEvent).GetQuery()
if expectedQuery != query {
newConnection.Connection().Close()
t.Fatal("Got incorrect query", "expected", expectedQuery, "got", query)
}
writeQuery := (<-events).(*myreplication.WriteEvent)
if expectedTable != writeQuery.GetTable() {
newConnection.Connection().Close()
t.Fatal("Got incorrect table name", "expected", expectedTable, "got", writeQuery.GetTable())
}
if expectedSchema != writeQuery.GetSchema() {
newConnection.Connection().Close()
t.Fatal("Got incorrect schema", "expected", expectedSchema, "got", writeQuery.GetTable())
}
rows := writeQuery.GetRows()
expectedRowsCount := 1
if expectedRowsCount != len(rows) {
newConnection.Connection().Close()
t.Fatal("Got incorrect rows count", "expected", expectedRowsCount, "got", len(rows))
}
columns := rows[0]
expectedColumnsCount := 3
if expectedColumnsCount != len(columns) {
newConnection.Connection().Close()
t.Fatal("Got incorrect columns count", "expected", expectedColumnsCount, "got", len(columns))
}
tests := []*columnTest{
&columnTest{0, myreplication.MYSQL_TYPE_LONG, uint32(maxId), false},
&columnTest{1, myreplication.MYSQL_TYPE_VARCHAR, "Hello!", false},
&columnTest{2, myreplication.MYSQL_TYPE_LONG, uint32(10), false},
}
for i, column := range columns {
if tests[i].columnId != column.GetColumnId() {
newConnection.Connection().Close()
t.Fatal(
"Write event. Got incorrect column id at column",
i, "expected", tests[i].columnId, "got", column.GetColumnId(),
)
}
if tests[i].columnType != column.GetType() {
newConnection.Connection().Close()
t.Fatal(
"Write event. Got incorrect column type at column",
i, "expected", tests[i].columnType, "got", column.GetType(),
)
}
if tests[i].isNil != column.IsNil() {
newConnection.Connection().Close()
t.Fatal(
"Write event. Got column nil value incorrect",
i, "expected", tests[i].isNil, "got", column.IsNil(),
)
}
if column.IsNil() {
continue
}
if !reflect.DeepEqual(tests[i].columnValue, column.GetValue()) {
newConnection.Connection().Close()
t.Fatal(
"Write event. Got incorrect column value at column",
i, "expected", tests[i].columnValue, "got", column.GetValue(),
)
}
}
t.Log("Update test")
_, err = con.Exec("UPDATE new_table SET text_field = ? WHERE id = ?", "World!", maxId)
if err != nil {
newConnection.Connection().Close()
t.Fatal(err.Error())
}
expectedQuery = "BEGIN"
query = (<-events).(*myreplication.QueryEvent).GetQuery()
if expectedQuery != query {
newConnection.Connection().Close()
t.Fatal("Got incorrect query", "expected", expectedQuery, "got", query)
}
updateEvent := (<-events).(*myreplication.UpdateEvent)
if expectedTable != updateEvent.GetTable() {
newConnection.Connection().Close()
t.Fatal("Got incorrect table name", "expected", expectedTable, "got", writeQuery.GetTable())
}
if expectedSchema != updateEvent.GetSchema() {
newConnection.Connection().Close()
t.Fatal("Got incorrect schema", "expected", expectedSchema, "got", writeQuery.GetTable())
}
t.Log("Update test: check old row version")
rows = updateEvent.GetRows()
expectedRowsCount = 1
if expectedRowsCount != len(rows) {
newConnection.Connection().Close()
t.Fatal("Got incorrect rows count", "expected", expectedRowsCount, "got", len(rows))
}
columns = rows[0]
expectedColumnsCount = 3
if expectedColumnsCount != len(columns) {
newConnection.Connection().Close()
t.Fatal("Got incorrect columns count", "expected", expectedColumnsCount, "got", len(columns))
}
for i, column := range columns {
if tests[i].columnId != column.GetColumnId() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column id at column",
i, "expected", tests[i].columnId, "got", column.GetColumnId(),
)
}
if tests[i].columnType != column.GetType() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column type at column",
i, "expected", tests[i].columnType, "got", column.GetType(),
)
}
if tests[i].isNil != column.IsNil() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got column nil value incorrect",
i, "expected", tests[i].isNil, "got", column.IsNil(),
)
}
if column.IsNil() {
continue
}
if !reflect.DeepEqual(tests[i].columnValue, column.GetValue()) {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column value at column",
i, "expected", tests[i].columnValue, "got", column.GetValue(),
)
}
}
t.Log("Update test: check new row version")
rows = updateEvent.GetNewRows()
expectedRowsCount = 1
if expectedRowsCount != len(rows) {
newConnection.Connection().Close()
t.Fatal("Got incorrect rows count", "expected", expectedRowsCount, "got", len(rows))
}
columns = rows[0]
expectedColumnsCount = 3
if expectedColumnsCount != len(columns) {
newConnection.Connection().Close()
t.Fatal("Got incorrect columns count", "expected", expectedColumnsCount, "got", len(columns))
}
tests = []*columnTest{
&columnTest{0, myreplication.MYSQL_TYPE_LONG, uint32(maxId), false},
&columnTest{1, myreplication.MYSQL_TYPE_VARCHAR, "World!", false},
&columnTest{2, myreplication.MYSQL_TYPE_LONG, uint32(10), false},
}
for i, column := range columns {
if tests[i].columnId != column.GetColumnId() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column id at column",
i, "expected", tests[i].columnId, "got", column.GetColumnId(),
)
}
if tests[i].columnType != column.GetType() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column type at column",
i, "expected", tests[i].columnType, "got", column.GetType(),
)
}
if tests[i].isNil != column.IsNil() {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got column nil value incorrect",
i, "expected", tests[i].isNil, "got", column.IsNil(),
)
}
if column.IsNil() {
continue
}
if !reflect.DeepEqual(tests[i].columnValue, column.GetValue()) {
newConnection.Connection().Close()
t.Fatal(
"Update event. Got incorrect column value at column",
i, "expected", tests[i].columnValue, "got", column.GetValue(),
)
}
}
t.Log("Delete test")
_, err = con.Exec("DELETE FROM new_table WHERE id = ?", maxId)
if err != nil {
newConnection.Connection().Close()
t.Fatal(err.Error())
}
expectedQuery = "BEGIN"
query = (<-events).(*myreplication.QueryEvent).GetQuery()
if expectedQuery != query {
newConnection.Connection().Close()
t.Fatal("Got incorrect query", "expected", expectedQuery, "got", query)
}
deleteEvent := (<-events).(*myreplication.DeleteEvent)
if expectedTable != deleteEvent.GetTable() {
newConnection.Connection().Close()
t.Fatal("Got incorrect table name", "expected", expectedTable, "got", writeQuery.GetTable())
}
if expectedSchema != deleteEvent.GetSchema() {
newConnection.Connection().Close()
t.Fatal("Got incorrect schema", "expected", expectedSchema, "got", writeQuery.GetTable())
}
rows = deleteEvent.GetRows()
expectedRowsCount = 1
if expectedRowsCount != len(rows) {
newConnection.Connection().Close()
t.Fatal("Got incorrect rows count", "expected", expectedRowsCount, "got", len(rows))
}
columns = rows[0]
expectedColumnsCount = 3
if expectedColumnsCount != len(columns) {
newConnection.Connection().Close()
t.Fatal("Got incorrect columns count", "expected", expectedColumnsCount, "got", len(columns))
}
for i, column := range columns {
if tests[i].columnId != column.GetColumnId() {
newConnection.Connection().Close()
t.Fatal(
"Delete event. Got incorrect column id at column",
i, "expected", tests[i].columnId, "got", column.GetColumnId(),
)
}
if tests[i].columnType != column.GetType() {
newConnection.Connection().Close()
t.Fatal(
"Delete event. Got incorrect column type at column",
i, "expected", tests[i].columnType, "got", column.GetType(),
)
}
if tests[i].isNil != column.IsNil() {
newConnection.Connection().Close()
t.Fatal(
"Delete event. Got column nil value incorrect",
i, "expected", tests[i].isNil, "got", column.IsNil(),
)
}
if column.IsNil() {
continue
}
if !reflect.DeepEqual(tests[i].columnValue, column.GetValue()) {
newConnection.Connection().Close()
t.Fatal(
"Delete event. Got incorrect column value at column",
i, "expected", tests[i].columnValue, "got", column.GetValue(),
)
}
}
os.Exit(0)
}()
err = el.Start()
if err != nil {
t.Fatal("Start error", err)
}
}
func TestStatementReplication(t *testing.T) {
newConnection := myreplication.NewConnection()
serverId := uint32(2)
err := newConnection.ConnectAndAuth(HOST, PORT, REPLICATION_USERNAME, REPLICATION_PASSWORD)
if err != nil {
t.Fatal("Client not connected and not autentificate to master server with error:", err.Error())
}
pos, filename, err := newConnection.GetMasterStatus()
if err != nil {
t.Fatal("Master status fail: ", err.Error())
}
el, err := newConnection.StartBinlogDump(pos, filename, serverId)
if err != nil {
t.Fatal("Cant start bin log: ", err.Error())
}
events := el.GetEventChan()
go func() {
con, err := sql.Open("mysql", fmt.Sprintf(
"%s:%s@tcp(%s:%d)/%s",
REPLICATION_USERNAME,
REPLICATION_PASSWORD,
HOST,
PORT,
DATABASE,
))
defer con.Close()
if err != nil {
t.Fatal(err)
}
r, err := con.Query("SELECT max(id) FROM new_table")
var maxId uint64
if r.Next() {
r.Scan(&maxId)
}
con.Exec("INSERT INTO new_table(text_field, num_field) values(?,?)", "Hello!", 10)
expectedQuery := "BEGIN"
if expectedQuery != (<-events).(*myreplication.QueryEvent).GetQuery() {
newConnection.Connection().Close()
t.Fatal("Got incorrect query")
}
if (<-events).(*myreplication.IntVarEvent).GetValue() != (maxId + 1) {
newConnection.Connection().Close()
t.Fatal("Got incorrect IntEvent")
}
expectedQuery = "INSERT INTO new_table(text_field, num_field) values('Hello!',10)"
if expectedQuery != (<-events).(*myreplication.QueryEvent).GetQuery() {
newConnection.Connection().Close()
t.Fatal("Got incorrect query")
}
os.Exit(0)
}()
err = el.Start()
if err != nil {
t.Fatal("Start error", err)
}
}
func main() {
newConnection := myreplication.NewConnection()
serverId := uint32(2)
err := newConnection.ConnectAndAuth(host, port, username, password)
if err != nil {
panic("Client not connected and not autentificate to master server with error:" + err.Error())
}
//Get position and file name
pos, filename, err := newConnection.GetMasterStatus()
if err != nil {
panic("Master status fail: " + err.Error())
}
el, err := newConnection.StartBinlogDump(pos, filename, serverId)
if err != nil {
panic("Cant start bin log: " + err.Error())
}
events := el.GetEventChan()
go func() {
for {
event := <-events
switch e := event.(type) {
case *myreplication.QueryEvent:
//Output query event
println(e.GetQuery())
case *myreplication.IntVarEvent:
//Output last insert_id if statement based replication
println(e.GetValue())
case *myreplication.WriteEvent:
//Output Write (insert) event
println("Write", e.GetTable())
//Rows loop
for i, row := range e.GetRows() {
//Columns loop
for j, col := range row {
//Output row number, column number, column type and column value
println(fmt.Sprintf("%d %d %d %v", i, j, col.GetType(), col.GetValue()))
}
}
case *myreplication.DeleteEvent:
//Output delete event
println("Delete", e.GetTable())
for i, row := range e.GetRows() {
for j, col := range row {
println(fmt.Sprintf("%d %d %d %v", i, j, col.GetType(), col.GetValue()))
}
}
case *myreplication.UpdateEvent:
//Output update event
println("Update", e.GetTable())
//Output old data before update
for i, row := range e.GetRows() {
for j, col := range row {
println(fmt.Sprintf("%d %d %d %v", i, j, col.GetType(), col.GetValue()))
}
}
//Output new
for i, row := range e.GetNewRows() {
for j, col := range row {
println(fmt.Sprintf("%d %d %d %v", i, j, col.GetType(), col.GetValue()))
}
}
default:
}
}
}()
err = el.Start()
println(err.Error())
}