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/*
Copyright 2022 GitHub Inc.
See https://github.com/github/gh-ost/blob/master/LICENSE
*/
package sql
import (
"testing"
"github.com/openark/golib/log"
"github.com/stretchr/testify/require"
)
func init() {
log.SetLevel(log.ERROR)
}
func TestParseAlterStatement(t *testing.T) {
statement := "add column t int, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.False(t, parser.HasNonTrivialRenames())
require.False(t, parser.IsAutoIncrementDefined())
}
func TestParseAlterStatementTrailingSemicolon(t *testing.T) {
statements := []string{
"add column t int;",
"add column t int ;",
"add column t int; \t\r\n",
"ADD KEY idx_username (`username`);",
}
expected := []string{
"add column t int",
"add column t int",
"add column t int",
"ADD KEY idx_username (`username`)",
}
for i, statement := range statements {
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, expected[i], parser.alterStatementOptions)
}
}
func TestParseAlterStatementrivialRename(t *testing.T) {
statement := "add column t int, change ts ts timestamp, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.False(t, parser.HasNonTrivialRenames())
require.False(t, parser.IsAutoIncrementDefined())
require.Len(t, parser.columnRenameMap, 1)
require.Equal(t, "ts", parser.columnRenameMap["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)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.True(t, parser.IsAutoIncrementDefined())
}
}
func TestParseAlterStatementrivialRenames(t *testing.T) {
statement := "add column t int, change ts ts timestamp, CHANGE f `f` float, engine=innodb"
parser := NewAlterTableParser()
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.False(t, parser.HasNonTrivialRenames())
require.False(t, parser.IsAutoIncrementDefined())
require.Len(t, parser.columnRenameMap, 2)
require.Equal(t, "ts", parser.columnRenameMap["ts"])
require.Equal(t, "f", parser.columnRenameMap["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)
require.NoError(t, err)
require.False(t, parser.IsAutoIncrementDefined())
require.Equal(t, statement, parser.alterStatementOptions)
renames := parser.GetNonTrivialRenames()
require.Len(t, renames, 2)
require.Equal(t, "count", renames["i"])
require.Equal(t, "fl", renames["f"])
}
}
func TestTokenizeAlterStatement(t *testing.T) {
parser := NewAlterTableParser()
{
alterStatement := "add column t int"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int"}, tokens)
}
{
alterStatement := "add column t int, change column i int"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int", "change column i int"}, tokens)
}
{
alterStatement := "add column t int, change column i int 'some comment'"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int", "change column i int 'some comment'"}, tokens)
}
{
alterStatement := "add column t int, change column i int 'some comment, with comma'"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int", "change column i int 'some comment, with comma'"}, tokens)
}
{
alterStatement := "add column t int, add column d decimal(10,2)"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int", "add column d decimal(10,2)"}, tokens)
}
{
alterStatement := "add column t int, add column e enum('a','b','c')"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int", "add column e enum('a','b','c')"}, tokens)
}
{
alterStatement := "add column t int(11), add column e enum('a','b','c')"
tokens := parser.tokenizeAlterStatement(alterStatement)
require.Equal(t, []string{"add column t int(11)", "add column e enum('a','b','c')"}, tokens)
}
}
func TestSanitizeQuotesFromAlterStatement(t *testing.T) {
parser := NewAlterTableParser()
{
alterStatement := "add column e enum('a','b','c')"
strippedStatement := parser.sanitizeQuotesFromAlterStatement(alterStatement)
require.Equal(t, "add column e enum('','','')", strippedStatement)
}
{
alterStatement := "change column i int 'some comment, with comma'"
strippedStatement := parser.sanitizeQuotesFromAlterStatement(alterStatement)
require.Equal(t, "change column i int ''", strippedStatement)
}
}
func TestParseAlterStatementDroppedColumns(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Len(t, parser.droppedColumns, 1)
require.True(t, parser.droppedColumns["b"])
}
{
parser := NewAlterTableParser()
statement := "drop column b, drop key c_idx, drop column `d`"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.Len(t, parser.droppedColumns, 2)
require.True(t, parser.droppedColumns["b"])
require.True(t, 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)
require.NoError(t, err)
require.Len(t, parser.droppedColumns, 3)
require.True(t, parser.droppedColumns["b"])
require.True(t, parser.droppedColumns["d"])
require.True(t, parser.droppedColumns["e"])
}
{
parser := NewAlterTableParser()
statement := "drop column b, drop bad statement, add column i int"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Len(t, parser.droppedColumns, 1)
require.True(t, parser.droppedColumns["b"])
}
}
func TestParseAlterStatementRenameTable(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.False(t, parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "rename as something_else"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.True(t, parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "drop column b, rename as something_else"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, statement, parser.alterStatementOptions)
require.True(t, parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "engine=innodb rename as something_else"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.True(t, parser.isRenameTable)
}
{
parser := NewAlterTableParser()
statement := "rename as something_else, engine=innodb"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.True(t, parser.isRenameTable)
}
}
func TestParseAlterStatementExplicitTable(t *testing.T) {
{
parser := NewAlterTableParser()
statement := "drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, "", parser.explicitSchema)
require.Equal(t, "", parser.explicitTable)
require.Equal(t, "drop column b", parser.alterStatementOptions)
require.Equal(t, []string{"drop column b"}, parser.alterTokens)
}
{
parser := NewAlterTableParser()
statement := "alter table tbl drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, "", parser.explicitSchema)
require.Equal(t, "tbl", parser.explicitTable)
require.Equal(t, "drop column b", parser.alterStatementOptions)
require.Equal(t, []string{"drop column b"}, parser.alterTokens)
}
{
parser := NewAlterTableParser()
statement := "alter table `tbl` drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table `scm with spaces`.`tbl` drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm with spaces")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table `scm`.`tbl with spaces` drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm")
require.Equal(t, parser.explicitTable, "tbl with spaces")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table `scm`.tbl drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table scm.`tbl` drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table scm.tbl drop column b"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b")
require.Equal(t, parser.alterTokens, []string{"drop column b"})
}
{
parser := NewAlterTableParser()
statement := "alter table scm.tbl drop column b, add index idx(i)"
err := parser.ParseAlterStatement(statement)
require.NoError(t, err)
require.Equal(t, parser.explicitSchema, "scm")
require.Equal(t, parser.explicitTable, "tbl")
require.Equal(t, parser.alterStatementOptions, "drop column b, add index idx(i)")
require.Equal(t, parser.alterTokens, []string{"drop column b", "add index idx(i)"})
}
}
func TestParseEnumValues(t *testing.T) {
{
s := "enum('red','green','blue','orange')"
values := ParseEnumValues(s)
require.Equal(t, values, "'red','green','blue','orange'")
}
{
s := "('red','green','blue','orange')"
values := ParseEnumValues(s)
require.Equal(t, values, "('red','green','blue','orange')")
}
{
s := "zzz"
values := ParseEnumValues(s)
require.Equal(t, values, "zzz")
}
}