package sqlc import ( "context" "database/sql" "encoding/json" "errors" "fmt" "io" "log" "os" "runtime" "sync" "sync/atomic" "testing" "time" "github.com/DATA-DOG/go-sqlmock" "github.com/alicebob/miniredis/v2" "github.com/stretchr/testify/assert" "github.com/zeromicro/go-zero/core/fx" "github.com/zeromicro/go-zero/core/logx" "github.com/zeromicro/go-zero/core/stat" "github.com/zeromicro/go-zero/core/stores/cache" "github.com/zeromicro/go-zero/core/stores/redis" "github.com/zeromicro/go-zero/core/stores/redis/redistest" "github.com/zeromicro/go-zero/core/stores/sqlx" "github.com/zeromicro/go-zero/core/syncx" "github.com/zeromicro/go-zero/internal/dbtest" ) func init() { logx.Disable() stat.SetReporter(nil) } func TestCachedConn_GetCache(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10)) var value string err := c.GetCache("any", &value) assert.Equal(t, ErrNotFound, err) _ = r.Set("any", `"value"`) err = c.GetCache("any", &value) assert.Nil(t, err) assert.Equal(t, "value", value) } func TestStat(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10)) for i := 0; i < 10; i++ { var str string err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { *v.(*string) = "zero" return nil }) if err != nil { t.Error(err) } } assert.Equal(t, uint64(10), atomic.LoadUint64(&stats.Total)) assert.Equal(t, uint64(9), atomic.LoadUint64(&stats.Hit)) } func TestCachedConn_QueryRowIndex_NoCache(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewConn(dummySqlConn{}, cache.CacheConf{ { RedisConf: redis.RedisConf{ Host: r.Addr, Type: redis.NodeType, }, Weight: 100, }, }, cache.WithExpiry(time.Second*10)) var str string err := c.QueryRowIndex(&str, "index", func(s any) string { return fmt.Sprintf("%s/1234", s) }, func(conn sqlx.SqlConn, v any) (any, error) { *v.(*string) = "zero" return "primary", errors.New("foo") }, func(conn sqlx.SqlConn, v, pri any) error { assert.Equal(t, "primary", pri) *v.(*string) = "xin" return nil }) assert.NotNil(t, err) err = c.QueryRowIndex(&str, "index", func(s any) string { return fmt.Sprintf("%s/1234", s) }, func(conn sqlx.SqlConn, v any) (any, error) { *v.(*string) = "zero" return "primary", nil }, func(conn sqlx.SqlConn, v, pri any) error { assert.Equal(t, "primary", pri) *v.(*string) = "xin" return nil }) assert.Nil(t, err) assert.Equal(t, "zero", str) val, err := r.Get("index") assert.Nil(t, err) assert.Equal(t, `"primary"`, val) val, err = r.Get("primary/1234") assert.Nil(t, err) assert.Equal(t, `"zero"`, val) } func TestCachedConn_QueryRowIndex_HasCache(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10), cache.WithNotFoundExpiry(time.Second)) var str string r.Set("index", `"primary"`) err := c.QueryRowIndex(&str, "index", func(s any) string { return fmt.Sprintf("%s/1234", s) }, func(conn sqlx.SqlConn, v any) (any, error) { assert.Fail(t, "should not go here") return "primary", nil }, func(conn sqlx.SqlConn, v, primary any) error { *v.(*string) = "xin" assert.Equal(t, "primary", primary) return nil }) assert.Nil(t, err) assert.Equal(t, "xin", str) val, err := r.Get("index") assert.Nil(t, err) assert.Equal(t, `"primary"`, val) val, err = r.Get("primary/1234") assert.Nil(t, err) assert.Equal(t, `"xin"`, val) } func TestCachedConn_QueryRowIndex_HasCache_IntPrimary(t *testing.T) { const ( primaryInt8 int8 = 100 primaryInt16 int16 = 10000 primaryInt32 int32 = 10000000 primaryInt64 int64 = 10000000 primaryUint8 uint8 = 100 primaryUint16 uint16 = 10000 primaryUint32 uint32 = 10000000 primaryUint64 uint64 = 10000000 ) tests := []struct { name string primary any primaryCache string }{ { name: "int8 primary", primary: primaryInt8, primaryCache: fmt.Sprint(primaryInt8), }, { name: "int16 primary", primary: primaryInt16, primaryCache: fmt.Sprint(primaryInt16), }, { name: "int32 primary", primary: primaryInt32, primaryCache: fmt.Sprint(primaryInt32), }, { name: "int64 primary", primary: primaryInt64, primaryCache: fmt.Sprint(primaryInt64), }, { name: "uint8 primary", primary: primaryUint8, primaryCache: fmt.Sprint(primaryUint8), }, { name: "uint16 primary", primary: primaryUint16, primaryCache: fmt.Sprint(primaryUint16), }, { name: "uint32 primary", primary: primaryUint32, primaryCache: fmt.Sprint(primaryUint32), }, { name: "uint64 primary", primary: primaryUint64, primaryCache: fmt.Sprint(primaryUint64), }, } for _, test := range tests { t.Run(test.name, func(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10), cache.WithNotFoundExpiry(time.Second)) var str string r.Set("index", test.primaryCache) err := c.QueryRowIndex(&str, "index", func(s any) string { return fmt.Sprintf("%v/1234", s) }, func(conn sqlx.SqlConn, v any) (any, error) { assert.Fail(t, "should not go here") return test.primary, nil }, func(conn sqlx.SqlConn, v, primary any) error { *v.(*string) = "xin" assert.Equal(t, primary, primary) return nil }) assert.Nil(t, err) assert.Equal(t, "xin", str) val, err := r.Get("index") assert.Nil(t, err) assert.Equal(t, test.primaryCache, val) val, err = r.Get(test.primaryCache + "/1234") assert.Nil(t, err) assert.Equal(t, `"xin"`, val) }) } } func TestCachedConn_QueryRowIndex_HasWrongCache(t *testing.T) { caches := map[string]string{ "index": "primary", "primary/1234": "xin", } for k, v := range caches { t.Run(k+"/"+v, func(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10), cache.WithNotFoundExpiry(time.Second)) var str string r.Set(k, v) err := c.QueryRowIndex(&str, "index", func(s any) string { return fmt.Sprintf("%s/1234", s) }, func(conn sqlx.SqlConn, v any) (any, error) { *v.(*string) = "xin" return "primary", nil }, func(conn sqlx.SqlConn, v, primary any) error { *v.(*string) = "xin" assert.Equal(t, "primary", primary) return nil }) assert.Nil(t, err) assert.Equal(t, "xin", str) val, err := r.Get("index") assert.Nil(t, err) assert.Equal(t, `"primary"`, val) val, err = r.Get("primary/1234") assert.Nil(t, err) assert.Equal(t, `"xin"`, val) }) } } func TestStatCacheFails(t *testing.T) { resetStats() log.SetOutput(io.Discard) defer log.SetOutput(os.Stdout) r := redis.New("localhost:59999") c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10)) for i := 0; i < 20; i++ { var str string err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { return errors.New("db failed") }) assert.NotNil(t, err) } assert.Equal(t, uint64(20), atomic.LoadUint64(&stats.Total)) assert.Equal(t, uint64(0), atomic.LoadUint64(&stats.Hit)) assert.Equal(t, uint64(20), atomic.LoadUint64(&stats.Miss)) assert.Equal(t, uint64(0), atomic.LoadUint64(&stats.DbFails)) } func TestStatDbFails(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10)) for i := 0; i < 20; i++ { var str string err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { return errors.New("db failed") }) assert.NotNil(t, err) } assert.Equal(t, uint64(20), atomic.LoadUint64(&stats.Total)) assert.Equal(t, uint64(0), atomic.LoadUint64(&stats.Hit)) assert.Equal(t, uint64(20), atomic.LoadUint64(&stats.DbFails)) } func TestStatFromMemory(t *testing.T) { resetStats() r := redistest.CreateRedis(t) c := NewNodeConn(dummySqlConn{}, r, cache.WithExpiry(time.Second*10)) var all sync.WaitGroup var wait sync.WaitGroup all.Add(10) wait.Add(4) go func() { var str string err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { *v.(*string) = "zero" return nil }) if err != nil { t.Error(err) } wait.Wait() runtime.Gosched() all.Done() }() for i := 0; i < 4; i++ { go func() { var str string wait.Done() err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { *v.(*string) = "zero" return nil }) if err != nil { t.Error(err) } all.Done() }() } for i := 0; i < 5; i++ { go func() { var str string err := c.QueryRow(&str, "name", func(conn sqlx.SqlConn, v any) error { *v.(*string) = "zero" return nil }) if err != nil { t.Error(err) } all.Done() }() } all.Wait() assert.Equal(t, uint64(10), atomic.LoadUint64(&stats.Total)) assert.Equal(t, uint64(9), atomic.LoadUint64(&stats.Hit)) } func TestCachedConn_DelCache(t *testing.T) { r := redistest.CreateRedis(t) const ( key = "user" value = "any" ) assert.NoError(t, r.Set(key, value)) c := NewNodeConn(&trackedConn{}, r, cache.WithExpiry(time.Second*30)) err := c.DelCache(key) assert.Nil(t, err) val, err := r.Get(key) assert.Nil(t, err) assert.Empty(t, val) } func TestCachedConnQueryRow(t *testing.T) { r := redistest.CreateRedis(t) const ( key = "user" value = "any" ) var conn trackedConn var user string var ran bool c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*30)) err := c.QueryRow(&user, key, func(conn sqlx.SqlConn, v any) error { ran = true user = value return nil }) assert.Nil(t, err) actualValue, err := r.Get(key) assert.Nil(t, err) var actual string assert.Nil(t, json.Unmarshal([]byte(actualValue), &actual)) assert.Equal(t, value, actual) assert.Equal(t, value, user) assert.True(t, ran) } func TestCachedConnQueryRowFromCache(t *testing.T) { r := redistest.CreateRedis(t) const ( key = "user" value = "any" ) var conn trackedConn var user string var ran bool c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*30)) assert.Nil(t, c.SetCache(key, value)) err := c.QueryRow(&user, key, func(conn sqlx.SqlConn, v any) error { ran = true user = value return nil }) assert.Nil(t, err) actualValue, err := r.Get(key) assert.Nil(t, err) var actual string assert.Nil(t, json.Unmarshal([]byte(actualValue), &actual)) assert.Equal(t, value, actual) assert.Equal(t, value, user) assert.False(t, ran) } func TestQueryRowNotFound(t *testing.T) { r := redistest.CreateRedis(t) const key = "user" var conn trackedConn var user string var ran int c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*30)) for i := 0; i < 20; i++ { err := c.QueryRow(&user, key, func(conn sqlx.SqlConn, v any) error { ran++ return sql.ErrNoRows }) assert.Exactly(t, sqlx.ErrNotFound, err) } assert.Equal(t, 1, ran) } func TestCachedConnExec(t *testing.T) { r := redistest.CreateRedis(t) var conn trackedConn c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*10)) _, err := c.ExecNoCache("delete from user_table where id='kevin'") assert.Nil(t, err) assert.True(t, conn.execValue) } func TestCachedConnExecDropCache(t *testing.T) { t.Run("drop cache", func(t *testing.T) { r, err := miniredis.Run() assert.Nil(t, err) defer fx.DoWithTimeout(func() error { r.Close() return nil }, time.Second) const ( key = "user" value = "any" ) var conn trackedConn c := NewNodeConn(&conn, redis.New(r.Addr()), cache.WithExpiry(time.Second*30)) assert.Nil(t, c.SetCache(key, value)) _, err = c.Exec(func(conn sqlx.SqlConn) (result sql.Result, e error) { return conn.Exec("delete from user_table where id='kevin'") }, key) assert.Nil(t, err) assert.True(t, conn.execValue) _, err = r.Get(key) assert.Exactly(t, miniredis.ErrKeyNotFound, err) _, err = c.Exec(func(conn sqlx.SqlConn) (result sql.Result, e error) { return nil, errors.New("foo") }, key) assert.NotNil(t, err) }) } func TestCachedConn_SetCacheWithExpire(t *testing.T) { r, err := miniredis.Run() assert.Nil(t, err) defer fx.DoWithTimeout(func() error { r.Close() return nil }, time.Second) const ( key = "user" value = "any" ) var conn trackedConn c := NewNodeConn(&conn, redis.New(r.Addr()), cache.WithExpiry(time.Second*30)) assert.Nil(t, c.SetCacheWithExpire(key, value, time.Minute)) val, err := r.Get(key) if assert.NoError(t, err) { ttl := r.TTL(key) assert.True(t, ttl > 0 && ttl <= time.Minute) assert.Equal(t, fmt.Sprintf("%q", value), val) } } func TestCachedConnExecDropCacheFailed(t *testing.T) { const key = "user" var conn trackedConn r := redis.New("anyredis:8888") c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*10)) _, err := c.Exec(func(conn sqlx.SqlConn) (result sql.Result, e error) { return conn.Exec("delete from user_table where id='kevin'") }, key) // async background clean, retry logic assert.Nil(t, err) } func TestCachedConnQueryRows(t *testing.T) { r := redistest.CreateRedis(t) var conn trackedConn c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*10)) var users []string err := c.QueryRowsNoCache(&users, "select user from user_table where id='kevin'") assert.Nil(t, err) assert.True(t, conn.queryRowsValue) } func TestCachedConnTransact(t *testing.T) { r := redistest.CreateRedis(t) var conn trackedConn c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*10)) err := c.Transact(func(session sqlx.Session) error { return nil }) assert.Nil(t, err) assert.True(t, conn.transactValue) } func TestQueryRowNoCache(t *testing.T) { r := redistest.CreateRedis(t) const ( key = "user" value = "any" ) var user string var ran bool conn := dummySqlConn{queryRow: func(v any, q string, args ...any) error { user = value ran = true return nil }} c := NewNodeConn(&conn, r, cache.WithExpiry(time.Second*30)) err := c.QueryRowNoCache(&user, key) assert.Nil(t, err) assert.Equal(t, value, user) assert.True(t, ran) } func TestNewConnWithCache(t *testing.T) { r := redistest.CreateRedis(t) var conn trackedConn c := NewConnWithCache(&conn, cache.NewNode(r, singleFlights, stats, sql.ErrNoRows)) _, err := c.ExecNoCache("delete from user_table where id='kevin'") assert.Nil(t, err) assert.True(t, conn.execValue) } func TestCachedConn_WithSession(t *testing.T) { dbtest.RunTxTest(t, func(tx *sql.Tx, mock sqlmock.Sqlmock) { mock.ExpectExec("any").WillReturnResult(sqlmock.NewResult(2, 3)) r := redistest.CreateRedis(t) conn := CachedConn{ cache: cache.NewNode(r, syncx.NewSingleFlight(), stats, sql.ErrNoRows), } conn = conn.WithSession(sqlx.NewSessionFromTx(tx)) res, err := conn.Exec(func(conn sqlx.SqlConn) (sql.Result, error) { return conn.Exec("any") }, "foo") assert.NoError(t, err) last, err := res.LastInsertId() assert.NoError(t, err) assert.Equal(t, int64(2), last) affected, err := res.RowsAffected() assert.NoError(t, err) assert.Equal(t, int64(3), affected) }) dbtest.RunTest(t, func(db *sql.DB, mock sqlmock.Sqlmock) { mock.ExpectBegin() mock.ExpectExec("any").WillReturnResult(sqlmock.NewResult(2, 3)) mock.ExpectCommit() r := redistest.CreateRedis(t) conn := CachedConn{ db: sqlx.NewSqlConnFromDB(db), cache: cache.NewNode(r, syncx.NewSingleFlight(), stats, sql.ErrNoRows), } assert.NoError(t, conn.Transact(func(session sqlx.Session) error { conn = conn.WithSession(session) res, err := conn.Exec(func(conn sqlx.SqlConn) (sql.Result, error) { return conn.Exec("any") }, "foo") assert.NoError(t, err) last, err := res.LastInsertId() assert.NoError(t, err) assert.Equal(t, int64(2), last) affected, err := res.RowsAffected() assert.NoError(t, err) assert.Equal(t, int64(3), affected) return nil })) }) dbtest.RunTest(t, func(db *sql.DB, mock sqlmock.Sqlmock) { mock.ExpectBegin() mock.ExpectExec("any").WillReturnError(errors.New("foo")) mock.ExpectRollback() r := redistest.CreateRedis(t) conn := CachedConn{ db: sqlx.NewSqlConnFromDB(db), cache: cache.NewNode(r, syncx.NewSingleFlight(), stats, sql.ErrNoRows), } assert.Error(t, conn.Transact(func(session sqlx.Session) error { conn = conn.WithSession(session) _, err := conn.Exec(func(conn sqlx.SqlConn) (sql.Result, error) { return conn.Exec("any") }, "bar") return err })) }) dbtest.RunTest(t, func(db *sql.DB, mock sqlmock.Sqlmock) { mock.ExpectBegin() mock.ExpectQuery("any").WillReturnRows(sqlmock.NewRows([]string{"id"}).AddRow(2)) mock.ExpectCommit() r := redistest.CreateRedis(t) conn := CachedConn{ db: sqlx.NewSqlConnFromDB(db), cache: cache.NewNode(r, syncx.NewSingleFlight(), stats, sql.ErrNoRows), } assert.NoError(t, conn.Transact(func(session sqlx.Session) error { var val string conn = conn.WithSession(session) err := conn.QueryRow(&val, "foo", func(conn sqlx.SqlConn, v interface{}) error { return conn.QueryRow(v, "any") }) assert.Equal(t, "2", val) return err })) val, err := r.Get("foo") assert.NoError(t, err) assert.Equal(t, `"2"`, val) }) dbtest.RunTest(t, func(db *sql.DB, mock sqlmock.Sqlmock) { mock.ExpectBegin() mock.ExpectQuery("any").WillReturnRows(sqlmock.NewRows([]string{"id"}).AddRow(2)) mock.ExpectExec("any").WillReturnResult(sqlmock.NewResult(2, 3)) mock.ExpectCommit() r := redistest.CreateRedis(t) conn := CachedConn{ db: sqlx.NewSqlConnFromDB(db), cache: cache.NewNode(r, syncx.NewSingleFlight(), stats, sql.ErrNoRows), } assert.NoError(t, conn.Transact(func(session sqlx.Session) error { var val string conn = conn.WithSession(session) assert.NoError(t, conn.QueryRow(&val, "foo", func(conn sqlx.SqlConn, v interface{}) error { return conn.QueryRow(v, "any") })) assert.Equal(t, "2", val) _, err := conn.Exec(func(conn sqlx.SqlConn) (sql.Result, error) { return conn.Exec("any") }, "foo") return err })) val, err := r.Get("foo") assert.NoError(t, err) assert.Empty(t, val) }) } func resetStats() { atomic.StoreUint64(&stats.Total, 0) atomic.StoreUint64(&stats.Hit, 0) atomic.StoreUint64(&stats.Miss, 0) atomic.StoreUint64(&stats.DbFails, 0) } type dummySqlConn struct { queryRow func(any, string, ...any) error } func (d dummySqlConn) ExecCtx(_ context.Context, _ string, _ ...any) (sql.Result, error) { return nil, nil } func (d dummySqlConn) PrepareCtx(_ context.Context, _ string) (sqlx.StmtSession, error) { return nil, nil } func (d dummySqlConn) QueryRowPartialCtx(_ context.Context, _ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) QueryRowsCtx(_ context.Context, _ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) QueryRowsPartialCtx(_ context.Context, _ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) TransactCtx(_ context.Context, _ func(context.Context, sqlx.Session) error) error { return nil } func (d dummySqlConn) Exec(_ string, _ ...any) (sql.Result, error) { return nil, nil } func (d dummySqlConn) Prepare(_ string) (sqlx.StmtSession, error) { return nil, nil } func (d dummySqlConn) QueryRow(v any, query string, args ...any) error { return d.QueryRowCtx(context.Background(), v, query, args...) } func (d dummySqlConn) QueryRowCtx(_ context.Context, v any, query string, args ...any) error { if d.queryRow != nil { return d.queryRow(v, query, args...) } return nil } func (d dummySqlConn) QueryRowPartial(_ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) QueryRows(_ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) QueryRowsPartial(_ any, _ string, _ ...any) error { return nil } func (d dummySqlConn) RawDB() (*sql.DB, error) { return nil, nil } func (d dummySqlConn) Transact(func(session sqlx.Session) error) error { return nil } type trackedConn struct { dummySqlConn execValue bool queryRowsValue bool transactValue bool } func (c *trackedConn) Exec(query string, args ...any) (sql.Result, error) { return c.ExecCtx(context.Background(), query, args...) } func (c *trackedConn) ExecCtx(ctx context.Context, query string, args ...any) (sql.Result, error) { c.execValue = true return c.dummySqlConn.ExecCtx(ctx, query, args...) } func (c *trackedConn) QueryRows(v any, query string, args ...any) error { return c.QueryRowsCtx(context.Background(), v, query, args...) } func (c *trackedConn) QueryRowsCtx(ctx context.Context, v any, query string, args ...any) error { c.queryRowsValue = true return c.dummySqlConn.QueryRowsCtx(ctx, v, query, args...) } func (c *trackedConn) RawDB() (*sql.DB, error) { return nil, nil } func (c *trackedConn) Transact(fn func(session sqlx.Session) error) error { return c.TransactCtx(context.Background(), func(_ context.Context, session sqlx.Session) error { return fn(session) }) } func (c *trackedConn) TransactCtx(ctx context.Context, fn func(context.Context, sqlx.Session) error) error { c.transactValue = true return c.dummySqlConn.TransactCtx(ctx, fn) }