forked from vitessio/vitess
/
fakequeryservice.go
501 lines (449 loc) · 14.2 KB
/
fakequeryservice.go
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package tabletconntest
import (
"errors"
"fmt"
"reflect"
"testing"
"golang.org/x/net/context"
"github.com/youtube/vitess/go/sqltypes"
"github.com/youtube/vitess/go/vt/callerid"
"github.com/youtube/vitess/go/vt/tabletserver"
"github.com/youtube/vitess/go/vt/tabletserver/querytypes"
querypb "github.com/youtube/vitess/go/vt/proto/query"
topodatapb "github.com/youtube/vitess/go/vt/proto/topodata"
vtrpcpb "github.com/youtube/vitess/go/vt/proto/vtrpc"
)
// FakeQueryService implements a programmable fake for the query service
// server side.
type FakeQueryService struct {
t *testing.T
TestingGateway bool
// these fields are used to simulate and synchronize on errors
HasError bool
HasBeginError bool
TabletError *tabletserver.TabletError
ErrorWait chan struct{}
// these fields are used to simulate and synchronize on panics
Panics bool
StreamExecutePanicsEarly bool
PanicWait chan struct{}
// ExpectedTransactionID is what transactionID to expect for Execute
ExpectedTransactionID int64
// StreamHealthResponse is what we return for StreamHealth.
// If not set, return TestStreamHealthStreamHealthResponse
StreamHealthResponse *querypb.StreamHealthResponse
}
// HandlePanic is part of the queryservice.QueryService interface
func (f *FakeQueryService) HandlePanic(err *error) {
if x := recover(); x != nil {
*err = fmt.Errorf("caught test panic: %v", x)
}
}
// TestTarget is the target we use for this test
var TestTarget = &querypb.Target{
Keyspace: "test_keyspace",
Shard: "test_shard",
TabletType: topodatapb.TabletType_REPLICA,
}
var TestCallerID = &vtrpcpb.CallerID{
Principal: "test_principal",
Component: "test_component",
Subcomponent: "test_subcomponent",
}
var TestVTGateCallerID = &querypb.VTGateCallerID{
Username: "test_username",
}
const TestAsTransaction bool = true
func (f *FakeQueryService) checkTargetCallerID(ctx context.Context, name string, target *querypb.Target) {
if !reflect.DeepEqual(target, TestTarget) {
f.t.Errorf("invalid Target for %v: got %#v expected %#v", name, target, TestTarget)
}
ef := callerid.EffectiveCallerIDFromContext(ctx)
if ef == nil {
f.t.Errorf("no effective caller id for %v", name)
} else {
if !reflect.DeepEqual(ef, TestCallerID) {
f.t.Errorf("invalid effective caller id for %v: got %v expected %v", name, ef, TestCallerID)
}
}
im := callerid.ImmediateCallerIDFromContext(ctx)
if im == nil {
f.t.Errorf("no immediate caller id for %v", name)
} else {
if !reflect.DeepEqual(im, TestVTGateCallerID) {
f.t.Errorf("invalid immediate caller id for %v: got %v expected %v", name, im, TestVTGateCallerID)
}
}
}
const BeginTransactionID int64 = 9990
// Begin is part of the queryservice.QueryService interface
func (f *FakeQueryService) Begin(ctx context.Context, target *querypb.Target) (int64, error) {
if f.HasBeginError {
return 0, f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
f.checkTargetCallerID(ctx, "Begin", target)
return BeginTransactionID, nil
}
const CommitTransactionID int64 = 999044
// Commit is part of the queryservice.QueryService interface
func (f *FakeQueryService) Commit(ctx context.Context, target *querypb.Target, transactionID int64) error {
if f.HasError {
return f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
f.checkTargetCallerID(ctx, "Commit", target)
if transactionID != CommitTransactionID {
f.t.Errorf("Commit: invalid TransactionId: got %v expected %v", transactionID, CommitTransactionID)
}
return nil
}
const RollbackTransactionID int64 = 999044
// Rollback is part of the queryservice.QueryService interface
func (f *FakeQueryService) Rollback(ctx context.Context, target *querypb.Target, transactionID int64) error {
if f.HasError {
return f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
f.checkTargetCallerID(ctx, "Rollback", target)
if transactionID != RollbackTransactionID {
f.t.Errorf("Rollback: invalid TransactionId: got %v expected %v", transactionID, RollbackTransactionID)
}
return nil
}
const ExecuteQuery = "executeQuery"
var ExecuteBindVars = map[string]interface{}{
"bind1": int64(1114444),
}
const ExecuteTransactionID int64 = 678
var ExecuteQueryResult = sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "field1",
Type: sqltypes.Int8,
},
{
Name: "field2",
Type: sqltypes.Char,
},
},
RowsAffected: 123,
InsertID: 72,
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("1")),
sqltypes.NULL,
},
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("2")),
sqltypes.MakeTrusted(sqltypes.Char, []byte("row2 value2")),
},
},
}
// Execute is part of the queryservice.QueryService interface
func (f *FakeQueryService) Execute(ctx context.Context, target *querypb.Target, sql string, bindVariables map[string]interface{}, transactionID int64) (*sqltypes.Result, error) {
if f.HasError {
return nil, f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
if sql != ExecuteQuery {
f.t.Errorf("invalid Execute.Query.Sql: got %v expected %v", sql, ExecuteQuery)
}
if !reflect.DeepEqual(bindVariables, ExecuteBindVars) {
f.t.Errorf("invalid Execute.BindVariables: got %v expected %v", bindVariables, ExecuteBindVars)
}
f.checkTargetCallerID(ctx, "Execute", target)
if transactionID != f.ExpectedTransactionID {
f.t.Errorf("invalid Execute.TransactionId: got %v expected %v", transactionID, f.ExpectedTransactionID)
}
return &ExecuteQueryResult, nil
}
const StreamExecuteQuery = "streamExecuteQuery"
var StreamExecuteBindVars = map[string]interface{}{
"bind1": int64(93848000),
}
var StreamExecuteQueryResult1 = sqltypes.Result{
Fields: []*querypb.Field{
{
Name: "field1",
Type: sqltypes.Int8,
},
{
Name: "field2",
Type: sqltypes.Char,
},
},
}
var StreamExecuteQueryResult2 = sqltypes.Result{
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("1")),
sqltypes.MakeTrusted(sqltypes.Char, []byte("row1 value2")),
},
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("2")),
sqltypes.MakeTrusted(sqltypes.Char, []byte("row2 value2")),
},
},
}
// StreamExecute is part of the queryservice.QueryService interface
func (f *FakeQueryService) StreamExecute(ctx context.Context, target *querypb.Target, sql string, bindVariables map[string]interface{}, sendReply func(*sqltypes.Result) error) error {
if f.Panics && f.StreamExecutePanicsEarly {
panic(fmt.Errorf("test-triggered panic early"))
}
if sql != StreamExecuteQuery {
f.t.Errorf("invalid StreamExecute.Sql: got %v expected %v", sql, StreamExecuteQuery)
}
if !reflect.DeepEqual(bindVariables, StreamExecuteBindVars) {
f.t.Errorf("invalid StreamExecute.BindVariables: got %v expected %v", bindVariables, StreamExecuteBindVars)
}
f.checkTargetCallerID(ctx, "StreamExecute", target)
if err := sendReply(&StreamExecuteQueryResult1); err != nil {
f.t.Errorf("sendReply1 failed: %v", err)
}
if f.Panics && !f.StreamExecutePanicsEarly {
// wait until the client gets the response, then panics
<-f.PanicWait
panic(fmt.Errorf("test-triggered panic late"))
}
if f.HasError {
// wait until the client has the response, since all
// streaming implementation may not send previous
// messages if an error has been triggered.
<-f.ErrorWait
return f.TabletError
}
if err := sendReply(&StreamExecuteQueryResult2); err != nil {
f.t.Errorf("sendReply2 failed: %v", err)
}
return nil
}
var ExecuteBatchQueries = []querytypes.BoundQuery{
{
Sql: "executeBatchQueries1",
BindVariables: map[string]interface{}{
"bind1": int64(43),
},
},
{
Sql: "executeBatchQueries2",
BindVariables: map[string]interface{}{
"bind2": int64(72),
},
},
}
const ExecuteBatchTransactionID int64 = 678
var ExecuteBatchQueryResultList = []sqltypes.Result{
{
Fields: []*querypb.Field{
{
Name: "field1",
Type: sqltypes.Int8,
},
},
RowsAffected: 1232,
InsertID: 712,
Rows: [][]sqltypes.Value{
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("1")),
},
{
sqltypes.MakeTrusted(sqltypes.Int8, []byte("2")),
},
},
},
{
Fields: []*querypb.Field{
{
Name: "field1",
Type: sqltypes.VarBinary,
},
},
RowsAffected: 12333,
InsertID: 74442,
Rows: [][]sqltypes.Value{
{
sqltypes.MakeString([]byte("row1 value1")),
},
{
sqltypes.MakeString([]byte("row1 value2")),
},
},
},
}
// ExecuteBatch is part of the queryservice.QueryService interface
func (f *FakeQueryService) ExecuteBatch(ctx context.Context, target *querypb.Target, queries []querytypes.BoundQuery, asTransaction bool, transactionID int64) ([]sqltypes.Result, error) {
if f.HasError {
return nil, f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
if !reflect.DeepEqual(queries, ExecuteBatchQueries) {
f.t.Errorf("invalid ExecuteBatch.Queries: got %v expected %v", queries, ExecuteBatchQueries)
}
f.checkTargetCallerID(ctx, "ExecuteBatch", target)
if asTransaction != TestAsTransaction {
f.t.Errorf("invalid ExecuteBatch.AsTransaction: got %v expected %v", asTransaction, TestAsTransaction)
}
if transactionID != f.ExpectedTransactionID {
f.t.Errorf("invalid ExecuteBatch.TransactionId: got %v expected %v", transactionID, f.ExpectedTransactionID)
}
return ExecuteBatchQueryResultList, nil
}
var SplitQueryBoundQuery = querytypes.BoundQuery{
Sql: "splitQuery",
BindVariables: map[string]interface{}{
"bind1": int64(43),
},
}
const SplitQuerySplitColumn = "nice_column_to_split"
const SplitQuerySplitCount = 372
var SplitQueryQuerySplitList = []querytypes.QuerySplit{
{
Sql: "splitQuery",
BindVariables: map[string]interface{}{
"bind1": int64(43),
"keyspace_id": int64(3333),
},
RowCount: 4456,
},
}
// TODO(erez): Rename to SplitQuery after migration to SplitQuery V2 is done.
var SplitQueryV2SplitColumns = []string{"nice_column_to_split"}
const SplitQueryV2SplitCount = 372
var SplitQueryV2BoundQuery = querytypes.BoundQuery{
Sql: "splitQuery",
BindVariables: map[string]interface{}{
"bind1": int64(43),
},
}
const SplitQueryV2NumRowsPerQueryPart = 123
const SplitQueryV2Algorithm = querypb.SplitQueryRequest_FULL_SCAN
var SplitQueryQueryV2SplitList = []querytypes.QuerySplit{
{
Sql: "splitQuery",
BindVariables: map[string]interface{}{
"bind1": int64(43),
"keyspace_id": int64(3333),
},
RowCount: 4456,
},
}
// SplitQuery is part of the queryservice.QueryService interface
func (f *FakeQueryService) SplitQuery(ctx context.Context, target *querypb.Target, sql string, bindVariables map[string]interface{}, splitColumn string, splitCount int64) ([]querytypes.QuerySplit, error) {
if f.HasError {
return nil, f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
f.checkTargetCallerID(ctx, "SplitQuery", target)
if !reflect.DeepEqual(querytypes.BoundQuery{
Sql: sql,
BindVariables: bindVariables,
}, SplitQueryBoundQuery) {
f.t.Errorf("invalid SplitQuery.SplitQueryRequest.Query: got %v expected %v", querytypes.QueryAsString(sql, bindVariables), SplitQueryBoundQuery)
}
if splitColumn != SplitQuerySplitColumn {
f.t.Errorf("invalid SplitQuery.SplitColumn: got %v expected %v", splitColumn, SplitQuerySplitColumn)
}
if splitCount != SplitQuerySplitCount {
f.t.Errorf("invalid SplitQuery.SplitCount: got %v expected %v", splitCount, SplitQuerySplitCount)
}
return SplitQueryQuerySplitList, nil
}
// SplitQueryV2 is part of the queryservice.QueryService interface
// TODO(erez): Rename to SplitQuery after migration to SplitQuery V2 is done.
func (f *FakeQueryService) SplitQueryV2(
ctx context.Context,
target *querypb.Target,
sql string,
bindVariables map[string]interface{},
splitColumns []string,
splitCount int64,
numRowsPerQueryPart int64,
algorithm querypb.SplitQueryRequest_Algorithm,
) ([]querytypes.QuerySplit, error) {
if f.HasError {
return nil, f.TabletError
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
f.checkTargetCallerID(ctx, "SplitQueryV2", target)
if !reflect.DeepEqual(querytypes.BoundQuery{
Sql: sql,
BindVariables: bindVariables,
}, SplitQueryV2BoundQuery) {
f.t.Errorf("invalid SplitQuery.SplitQueryRequest.Query: got %v expected %v",
querytypes.QueryAsString(sql, bindVariables), SplitQueryV2BoundQuery)
}
if !reflect.DeepEqual(splitColumns, SplitQueryV2SplitColumns) {
f.t.Errorf("invalid SplitQuery.SplitColumn: got %v expected %v",
splitColumns, SplitQueryV2SplitColumns)
}
if !reflect.DeepEqual(splitCount, SplitQueryV2SplitCount) {
f.t.Errorf("invalid SplitQuery.SplitCount: got %v expected %v",
splitCount, SplitQueryV2SplitCount)
}
if !reflect.DeepEqual(numRowsPerQueryPart, SplitQueryV2NumRowsPerQueryPart) {
f.t.Errorf("invalid SplitQuery.numRowsPerQueryPart: got %v expected %v",
numRowsPerQueryPart, SplitQueryV2NumRowsPerQueryPart)
}
if algorithm != SplitQueryV2Algorithm {
f.t.Errorf("invalid SplitQuery.algorithm: got %v expected %v",
algorithm, SplitQueryV2Algorithm)
}
return SplitQueryQueryV2SplitList, nil
}
var TestStreamHealthStreamHealthResponse = &querypb.StreamHealthResponse{
Target: &querypb.Target{
Keyspace: "test_keyspace",
Shard: "test_shard",
TabletType: topodatapb.TabletType_RDONLY,
},
Serving: true,
TabletExternallyReparentedTimestamp: 1234589,
RealtimeStats: &querypb.RealtimeStats{
HealthError: "random error",
SecondsBehindMaster: 234,
BinlogPlayersCount: 1,
SecondsBehindMasterFilteredReplication: 2,
CpuUsage: 1.0,
},
}
var TestStreamHealthErrorMsg = "to trigger a server error"
// StreamHealthRegister is part of the queryservice.QueryService interface
func (f *FakeQueryService) StreamHealthRegister(c chan<- *querypb.StreamHealthResponse) (int, error) {
if f.HasError {
return 0, errors.New(TestStreamHealthErrorMsg)
}
if f.Panics {
panic(fmt.Errorf("test-triggered panic"))
}
shr := f.StreamHealthResponse
if shr == nil {
shr = TestStreamHealthStreamHealthResponse
}
c <- shr
return 1, nil
}
// StreamHealthUnregister is part of the queryservice.QueryService interface
func (f *FakeQueryService) StreamHealthUnregister(int) error {
return nil
}
// CreateFakeServer returns the fake server for the tests
func CreateFakeServer(t *testing.T) *FakeQueryService {
return &FakeQueryService{
t: t,
}
}