gh-ost/go/sql/parser_test.go
2022-10-21 18:02:06 +02:00

339 lines
12 KiB
Go

/*
Copyright 2022 GitHub Inc.
See https://github.com/github/gh-ost/blob/master/LICENSE
*/
package sql
import (
"reflect"
"testing"
"github.com/openark/golib/log"
test "github.com/openark/golib/tests"
)
func init() {
log.SetLevel(log.ERROR)
}
func TestParseAlterStatement(t *testing.T) {
statement := "add column t int, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectFalse(parser.HasNonTrivialRenames())
test.S(t).ExpectFalse(parser.IsAutoIncrementDefined())
}
func TestParseAlterStatementTrivialRename(t *testing.T) {
statement := "add column t int, change ts ts timestamp, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectFalse(parser.HasNonTrivialRenames())
test.S(t).ExpectFalse(parser.IsAutoIncrementDefined())
test.S(t).ExpectEquals(len(parser.columnRenameMap), 1)
test.S(t).ExpectEquals(parser.columnRenameMap["ts"], "ts")
}
func TestParseAlterStatementWithAutoIncrement(t *testing.T) {
statements := []string{
"auto_increment=7",
"auto_increment = 7",
"AUTO_INCREMENT = 71",
"add column t int, change ts ts timestamp, auto_increment=7 engine=innodb",
"add column t int, change ts ts timestamp, auto_increment =7 engine=innodb",
"add column t int, change ts ts timestamp, AUTO_INCREMENT = 7 engine=innodb",
"add column t int, change ts ts timestamp, engine=innodb auto_increment=73425",
}
for _, statement := range statements {
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectTrue(parser.IsAutoIncrementDefined())
}
}
func TestParseAlterStatementTrivialRenames(t *testing.T) {
statement := "add column t int, change ts ts timestamp, CHANGE f `f` float, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectFalse(parser.HasNonTrivialRenames())
test.S(t).ExpectFalse(parser.IsAutoIncrementDefined())
test.S(t).ExpectEquals(len(parser.columnRenameMap), 2)
test.S(t).ExpectEquals(parser.columnRenameMap["ts"], "ts")
test.S(t).ExpectEquals(parser.columnRenameMap["f"], "f")
}
func TestParseAlterStatementNonTrivial(t *testing.T) {
statements := []string{
`add column b bigint, change f fl float, change i count int, engine=innodb`,
"add column b bigint, change column `f` fl float, change `i` `count` int, engine=innodb",
"add column b bigint, change column `f` fl float, change `i` `count` int, change ts ts timestamp, engine=innodb",
`change
f fl float,
CHANGE COLUMN i
count int, engine=innodb`,
}
for _, statement := range statements {
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectFalse(parser.IsAutoIncrementDefined())
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
renames := parser.GetNonTrivialRenames()
test.S(t).ExpectEquals(len(renames), 2)
test.S(t).ExpectEquals(renames["i"], "count")
test.S(t).ExpectEquals(renames["f"], "fl")
}
}
func TestTokenizeAlterStatement(t *testing.T) {
parser := NewAlterTableParser()
{
alterStatement := "add column t int"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int"}))
}
{
alterStatement := "add column t int, change column i int"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int", "change column i int"}))
}
{
alterStatement := "add column t int, change column i int 'some comment'"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int", "change column i int 'some comment'"}))
}
{
alterStatement := "add column t int, change column i int 'some comment, with comma'"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int", "change column i int 'some comment, with comma'"}))
}
{
alterStatement := "add column t int, add column d decimal(10,2)"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int", "add column d decimal(10,2)"}))
}
{
alterStatement := "add column t int, add column e enum('a','b','c')"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int", "add column e enum('a','b','c')"}))
}
{
alterStatement := "add column t int(11), add column e enum('a','b','c')"
tokens := parser.tokenizeAlterStatement(alterStatement)
test.S(t).ExpectTrue(reflect.DeepEqual(tokens, []string{"add column t int(11)", "add column e enum('a','b','c')"}))
}
}
func TestSanitizeQuotesFromAlterStatement(t *testing.T) {
parser := NewAlterTableParser()
{
alterStatement := "add column e enum('a','b','c')"
strippedStatement := parser.sanitizeQuotesFromAlterStatement(alterStatement)
test.S(t).ExpectEquals(strippedStatement, "add column e enum('','','')")
}
{
alterStatement := "change column i int 'some comment, with comma'"
strippedStatement := parser.sanitizeQuotesFromAlterStatement(alterStatement)
test.S(t).ExpectEquals(strippedStatement, "change column i int ''")
}
}
func TestParseAlterStatementDroppedColumns(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(len(parser.droppedColumns), 1)
test.S(t).ExpectTrue(parser.droppedColumns["b"])
}
{
parser := NewAlterTableParser()
statement := "drop column b, drop key c_idx, drop column `d`"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectEquals(len(parser.droppedColumns), 2)
test.S(t).ExpectTrue(parser.droppedColumns["b"])
test.S(t).ExpectTrue(parser.droppedColumns["d"])
}
{
parser := NewAlterTableParser()
statement := "drop column b, drop key c_idx, drop column `d`, drop `e`, drop primary key, drop foreign key fk_1"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(len(parser.droppedColumns), 3)
test.S(t).ExpectTrue(parser.droppedColumns["b"])
test.S(t).ExpectTrue(parser.droppedColumns["d"])
test.S(t).ExpectTrue(parser.droppedColumns["e"])
}
{
parser := NewAlterTableParser()
statement := "drop column b, drop bad statement, add column i int"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(len(parser.droppedColumns), 1)
test.S(t).ExpectTrue(parser.droppedColumns["b"])
}
}
func TestParseAlterStatementRenameTable(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectFalse(parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "rename as something_else"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectTrue(parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "drop column b, rename as something_else"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.alterStatementOptions, statement)
test.S(t).ExpectTrue(parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "engine=innodb rename as something_else"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectTrue(parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "rename as something_else, engine=innodb"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectTrue(parser.isRenameTable)
}
}
func TestParseAlterStatementExplicitTable(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "")
test.S(t).ExpectEquals(parser.explicitTable, "")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table tbl drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table `tbl` drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table `scm with spaces`.`tbl` drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm with spaces")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table `scm`.`tbl with spaces` drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm")
test.S(t).ExpectEquals(parser.explicitTable, "tbl with spaces")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table `scm`.tbl drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table scm.`tbl` drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table scm.tbl drop column b"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b"}))
}
{
parser := NewAlterTableParser()
statement := "alter table scm.tbl drop column b, add index idx(i)"
err := parser.ParseAlterStatement(statement)
test.S(t).ExpectNil(err)
test.S(t).ExpectEquals(parser.explicitSchema, "scm")
test.S(t).ExpectEquals(parser.explicitTable, "tbl")
test.S(t).ExpectEquals(parser.alterStatementOptions, "drop column b, add index idx(i)")
test.S(t).ExpectTrue(reflect.DeepEqual(parser.alterTokens, []string{"drop column b", "add index idx(i)"}))
}
}
func TestParseEnumValues(t *testing.T) {
{
s := "enum('red','green','blue','orange')"
values := ParseEnumValues(s)
test.S(t).ExpectEquals(values, "'red','green','blue','orange'")
}
{
s := "('red','green','blue','orange')"
values := ParseEnumValues(s)
test.S(t).ExpectEquals(values, "('red','green','blue','orange')")
}
{
s := "zzz"
values := ParseEnumValues(s)
test.S(t).ExpectEquals(values, "zzz")
}
}