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26 lines
1008 B
26 lines
1008 B
package mysql
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import (
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"errors"
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"fmt"
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"testing"
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mysqldrv "github.com/go-sql-driver/mysql"
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)
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// 只有「对方已经建好了」这类冲突才重试；其余错误（权限、语法、连接断开）照旧直接返回。
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func TestIsConcurrentDDLConflict(t *testing.T) {
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cases := map[error]bool{
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&mysqldrv.MySQLError{Number: 1060, Message: "Duplicate column name 'computeuser'"}: true,
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&mysqldrv.MySQLError{Number: 1050, Message: "Table already exists"}: true,
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&mysqldrv.MySQLError{Number: 1061, Message: "Duplicate key name"}: true,
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fmt.Errorf("wrap: %w", &mysqldrv.MySQLError{Number: 1060}): true,
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&mysqldrv.MySQLError{Number: 1142, Message: "ALTER command denied"}: false,
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errors.New("driver: bad connection"): false,
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}
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for err, want := range cases {
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if got := isConcurrentDDLConflict(err); got != want {
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t.Errorf("%v → %v, want %v", err, got, want)
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}
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}
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}
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