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/*
Copyright 2017 Google Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package sqlparser
import (
"reflect"
"strings"
"testing"
"vitess.io/vitess/go/sqltypes"
)
func TestPreview(t *testing.T) {
testcases := []struct {
sql string
want int
}{
{"select ...", StmtSelect},
{" select ...", StmtSelect},
{"insert ...", StmtInsert},
{"replace ....", StmtReplace},
{" update ...", StmtUpdate},
{"Update", StmtUpdate},
{"UPDATE ...", StmtUpdate},
{"\n\t delete ...", StmtDelete},
{"", StmtUnknown},
{" ", StmtUnknown},
{"begin", StmtBegin},
{" begin", StmtBegin},
{" begin ", StmtBegin},
{"\n\t begin ", StmtBegin},
{"... begin ", StmtUnknown},
{"begin ...", StmtUnknown},
{"begin /* ... */", StmtBegin},
{"begin /* ... *//*test*/", StmtBegin},
{"start transaction", StmtBegin},
{"commit", StmtCommit},
{"commit /*...*/", StmtCommit},
{"rollback", StmtRollback},
{"rollback /*...*/", StmtRollback},
{"create", StmtDDL},
{"alter", StmtDDL},
{"rename", StmtDDL},
{"drop", StmtDDL},
{"set", StmtSet},
{"show", StmtShow},
{"use", StmtUse},
{"analyze", StmtOther},
{"describe", StmtOther},
{"desc", StmtOther},
{"explain", StmtOther},
{"repair", StmtOther},
{"optimize", StmtOther},
{"truncate", StmtDDL},
{"unknown", StmtUnknown},
{"/* leading comment */ select ...", StmtSelect},
{"/* leading comment */ /* leading comment 2 */ select ...", StmtSelect},
{"/*! MySQL-specific comment */", StmtComment},
{"/*!50708 MySQL-version comment */", StmtComment},
{"-- leading single line comment \n select ...", StmtSelect},
{"-- leading single line comment \n -- leading single line comment 2\n select ...", StmtSelect},
{"/* leading comment no end select ...", StmtUnknown},
{"-- leading single line comment no end select ...", StmtUnknown},
}
for _, tcase := range testcases {
if got := Preview(tcase.sql); got != tcase.want {
t.Errorf("Preview(%s): %v, want %v", tcase.sql, got, tcase.want)
}
}
}
func TestIsDML(t *testing.T) {
testcases := []struct {
sql string
want bool
}{
{" update ...", true},
{"Update", true},
{"UPDATE ...", true},
{"\n\t delete ...", true},
{"insert ...", true},
{"replace ...", true},
{"select ...", false},
{" select ...", false},
{"", false},
{" ", false},
}
for _, tcase := range testcases {
if got := IsDML(tcase.sql); got != tcase.want {
t.Errorf("IsDML(%s): %v, want %v", tcase.sql, got, tcase.want)
}
}
}
func TestGetTableName(t *testing.T) {
testcases := []struct {
in, out string
}{{
in: "select * from t",
out: "t",
}, {
in: "select * from t.t",
out: "",
}, {
in: "select * from (select * from t) as tt",
out: "",
}}
for _, tc := range testcases {
tree, err := Parse(tc.in)
if err != nil {
t.Error(err)
continue
}
out := GetTableName(tree.(*Select).From[0].(*AliasedTableExpr).Expr)
if out.String() != tc.out {
t.Errorf("GetTableName('%s'): %s, want %s", tc.in, out, tc.out)
}
}
}
func TestIsColName(t *testing.T) {
testcases := []struct {
in Expr
out bool
}{{
in: &ColName{},
out: true,
}, {
in: newHexVal(""),
}}
for _, tc := range testcases {
out := IsColName(tc.in)
if out != tc.out {
t.Errorf("IsColName(%T): %v, want %v", tc.in, out, tc.out)
}
}
}
func TestIsValue(t *testing.T) {
testcases := []struct {
in Expr
out bool
}{{
in: newStrVal("aa"),
out: true,
}, {
in: newHexVal("3131"),
out: true,
}, {
in: newIntVal("1"),
out: true,
}, {
in: newValArg(":a"),
out: true,
}, {
in: &NullVal{},
out: false,
}}
for _, tc := range testcases {
out := IsValue(tc.in)
if out != tc.out {
t.Errorf("IsValue(%T): %v, want %v", tc.in, out, tc.out)
}
if tc.out {
// NewPlanValue should not fail for valid values.
if _, err := NewPlanValue(tc.in); err != nil {
t.Error(err)
}
}
}
}
func TestIsNull(t *testing.T) {
testcases := []struct {
in Expr
out bool
}{{
in: &NullVal{},
out: true,
}, {
in: newStrVal(""),
}}
for _, tc := range testcases {
out := IsNull(tc.in)
if out != tc.out {
t.Errorf("IsNull(%T): %v, want %v", tc.in, out, tc.out)
}
}
}
func TestIsSimpleTuple(t *testing.T) {
testcases := []struct {
in Expr
out bool
}{{
in: ValTuple{newStrVal("aa")},
out: true,
}, {
in: ValTuple{&ColName{}},
}, {
in: ListArg("::a"),
out: true,
}, {
in: &ColName{},
}}
for _, tc := range testcases {
out := IsSimpleTuple(tc.in)
if out != tc.out {
t.Errorf("IsSimpleTuple(%T): %v, want %v", tc.in, out, tc.out)
}
if tc.out {
// NewPlanValue should not fail for valid tuples.
if _, err := NewPlanValue(tc.in); err != nil {
t.Error(err)
}
}
}
}
func TestNewPlanValue(t *testing.T) {
tcases := []struct {
in Expr
out sqltypes.PlanValue
err string
}{{
in: &SQLVal{
Type: ValArg,
Val: []byte(":valarg"),
},
out: sqltypes.PlanValue{Key: "valarg"},
}, {
in: &SQLVal{
Type: IntVal,
Val: []byte("10"),
},
out: sqltypes.PlanValue{Value: sqltypes.NewInt64(10)},
}, {
in: &SQLVal{
Type: IntVal,
Val: []byte("1111111111111111111111111111111111111111"),
},
err: "value out of range",
}, {
in: &SQLVal{
Type: StrVal,
Val: []byte("strval"),
},
out: sqltypes.PlanValue{Value: sqltypes.NewVarBinary("strval")},
}, {
in: &SQLVal{
Type: HexVal,
Val: []byte("3131"),
},
out: sqltypes.PlanValue{Value: sqltypes.NewVarBinary("11")},
}, {
in: &SQLVal{
Type: HexVal,
Val: []byte("313"),
},
err: "odd length hex string",
}, {
in: ListArg("::list"),
out: sqltypes.PlanValue{ListKey: "list"},
}, {
in: ValTuple{
&SQLVal{
Type: ValArg,
Val: []byte(":valarg"),
},
&SQLVal{
Type: StrVal,
Val: []byte("strval"),
},
},
out: sqltypes.PlanValue{
Values: []sqltypes.PlanValue{{
Key: "valarg",
}, {
Value: sqltypes.NewVarBinary("strval"),
}},
},
}, {
in: ValTuple{
&ParenExpr{Expr: &SQLVal{
Type: ValArg,
Val: []byte(":valarg"),
}},
},
err: "expression is too complex",
}, {
in: ValTuple{
ListArg("::list"),
},
err: "unsupported: nested lists",
}, {
in: &NullVal{},
out: sqltypes.PlanValue{},
}, {
in: &ParenExpr{Expr: &SQLVal{
Type: ValArg,
Val: []byte(":valarg"),
}},
err: "expression is too complex",
}}
for _, tc := range tcases {
got, err := NewPlanValue(tc.in)
if err != nil {
if !strings.Contains(err.Error(), tc.err) {
t.Errorf("NewPlanValue(%s) error: %v, want '%s'", String(tc.in), err, tc.err)
}
continue
}
if tc.err != "" {
t.Errorf("NewPlanValue(%s) error: nil, want '%s'", String(tc.in), tc.err)
continue
}
if !reflect.DeepEqual(got, tc.out) {
t.Errorf("NewPlanValue(%s): %v, want %v", String(tc.in), got, tc.out)
}
}
}
func TestStringIn(t *testing.T) {
testcases := []struct {
in1 string
in2 []string
out bool
}{{
in1: "v1",
in2: []string{"v1", "v2"},
out: true,
}, {
in1: "v0",
in2: []string{"v1", "v2"},
}}
for _, tc := range testcases {
out := StringIn(tc.in1, tc.in2...)
if out != tc.out {
t.Errorf("StringIn(%v,%v): %#v, want %#v", tc.in1, tc.in2, out, tc.out)
}
}
}
func TestExtractSetValues(t *testing.T) {
testcases := []struct {
sql string
out map[string]interface{}
scope string
err string
}{{
sql: "invalid",
err: "syntax error at position 8 near 'invalid'",
}, {
sql: "select * from t",
err: "ast did not yield *sqlparser.Set: *sqlparser.Select",
}, {
sql: "set autocommit=1+1",
err: "invalid syntax: 1 + 1",
}, {
sql: "set transaction_mode='single'",
out: map[string]interface{}{"transaction_mode": "single"},
}, {
sql: "set autocommit=1",
out: map[string]interface{}{"autocommit": int64(1)},
}, {
sql: "set AUTOCOMMIT=1",
out: map[string]interface{}{"autocommit": int64(1)},
}, {
sql: "SET character_set_results = NULL",
out: map[string]interface{}{"character_set_results": nil},
}, {
sql: "SET foo = 0x1234",
err: "invalid value type: 0x1234",
}, {
sql: "SET names utf8",
out: map[string]interface{}{"names": "utf8"},
}, {
sql: "SET names ascii collate ascii_bin",
out: map[string]interface{}{"names": "ascii"},
}, {
sql: "SET charset default",
out: map[string]interface{}{"charset": "default"},
}, {
sql: "SET character set ascii",
out: map[string]interface{}{"charset": "ascii"},
}, {
sql: "SET SESSION wait_timeout = 3600",
out: map[string]interface{}{"wait_timeout": int64(3600)},
scope: "session",
}, {
sql: "SET GLOBAL wait_timeout = 3600",
out: map[string]interface{}{"wait_timeout": int64(3600)},
scope: "global",
}}
for _, tcase := range testcases {
out, _, err := ExtractSetValues(tcase.sql)
if tcase.err != "" {
if err == nil || err.Error() != tcase.err {
t.Errorf("ExtractSetValues(%s): %v, want '%s'", tcase.sql, err, tcase.err)
}
} else if err != nil {
t.Errorf("ExtractSetValues(%s): %v, want no error", tcase.sql, err)
}
if !reflect.DeepEqual(out, tcase.out) {
t.Errorf("ExtractSetValues(%s): %v, want '%v'", tcase.sql, out, tcase.out)
}
}
}
func newStrVal(in string) *SQLVal {
return NewStrVal([]byte(in))
}
func newIntVal(in string) *SQLVal {
return NewIntVal([]byte(in))
}
func newHexVal(in string) *SQLVal {
return NewHexVal([]byte(in))
}
func newValArg(in string) *SQLVal {
return NewValArg([]byte(in))
}
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