gorm/clause/limit_test.go

67 lines
2.0 KiB
Go

package clause_test
import (
"fmt"
"testing"
"gorm.io/gorm/clause"
)
func TestLimit(t *testing.T) {
limit0 := 0
limit10 := 10
limit50 := 50
limitNeg10 := -10
results := []struct {
Clauses []clause.Interface
Result string
Vars []interface{}
}{
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{
Limit: &limit10,
Offset: 20,
}},
"SELECT * FROM `users` LIMIT 10 OFFSET 20", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit0}},
"SELECT * FROM `users` LIMIT 0", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Offset: 20}},
"SELECT * FROM `users` OFFSET 20", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Offset: 20}, clause.Limit{Offset: 30}},
"SELECT * FROM `users` OFFSET 30", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Offset: 20}, clause.Limit{Limit: &limit10}},
"SELECT * FROM `users` LIMIT 10 OFFSET 20", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit10, Offset: 20}, clause.Limit{Offset: 30}},
"SELECT * FROM `users` LIMIT 10 OFFSET 30", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit10, Offset: 20}, clause.Limit{Offset: 30}, clause.Limit{Offset: -10}},
"SELECT * FROM `users` LIMIT 10", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit10, Offset: 20}, clause.Limit{Offset: 30}, clause.Limit{Limit: &limitNeg10}},
"SELECT * FROM `users` OFFSET 30", nil,
},
{
[]clause.Interface{clause.Select{}, clause.From{}, clause.Limit{Limit: &limit10, Offset: 20}, clause.Limit{Offset: 30}, clause.Limit{Limit: &limit50}},
"SELECT * FROM `users` LIMIT 50 OFFSET 30", nil,
},
}
for idx, result := range results {
t.Run(fmt.Sprintf("case #%v", idx), func(t *testing.T) {
checkBuildClauses(t, result.Clauses, result.Result, result.Vars)
})
}
}