gorm/statement_test.go
2021-08-18 21:55:57 +08:00

79 lines
2.0 KiB
Go

package gorm
import (
"fmt"
"reflect"
"strings"
"testing"
"gorm.io/gorm/clause"
"gorm.io/gorm/logger"
"gorm.io/gorm/schema"
)
func TestWhereCloneCorruption(t *testing.T) {
for whereCount := 1; whereCount <= 8; whereCount++ {
t.Run(fmt.Sprintf("w=%d", whereCount), func(t *testing.T) {
s := new(Statement)
for w := 0; w < whereCount; w++ {
s = s.clone()
s.AddClause(clause.Where{
Exprs: s.BuildCondition(fmt.Sprintf("where%d", w)),
})
}
s1 := s.clone()
s1.AddClause(clause.Where{
Exprs: s.BuildCondition("FINAL1"),
})
s2 := s.clone()
s2.AddClause(clause.Where{
Exprs: s.BuildCondition("FINAL2"),
})
if reflect.DeepEqual(s1.Clauses["WHERE"], s2.Clauses["WHERE"]) {
t.Errorf("Where conditions should be different")
}
})
}
}
var _ Dialector = new(dummyDialector)
type dummyDialector struct{}
func (dummyDialector) Name() string { return "dummy" }
func (dummyDialector) Initialize(*DB) error { return nil }
func (dummyDialector) DefaultValueOf(field *schema.Field) clause.Expression {
return clause.Expr{SQL: "DEFAULT"}
}
func (dummyDialector) Migrator(*DB) Migrator { return nil }
func (dummyDialector) BindVarTo(writer clause.Writer, stmt *Statement, v interface{}) {
writer.WriteByte('?')
}
func (dummyDialector) QuoteTo(writer clause.Writer, str string) { writer.WriteString("`" + str + "`") }
func (dummyDialector) Explain(sql string, vars ...interface{}) string {
return logger.ExplainSQL(sql, nil, `"`, vars...)
}
func (dummyDialector) DataTypeOf(*schema.Field) string { return "" }
var db, _ = Open(dummyDialector{})
func TestStatement_WriteQuoted(t *testing.T) {
s := Statement{DB: db}
testdata := map[string]clause.Expression{
"SUM(`users`.`id`)": clause.Expr{SQL: "SUM(?)", Vars: []interface{}{clause.Column{Table: "users", Name: "id"}}},
}
for result, expr := range testdata {
s.WriteQuoted(expr)
if s.SQL.String() != result {
t.Errorf("WriteQuoted test fail, expected: %s, got %s", result, s.SQL.String())
}
s.SQL = strings.Builder{}
s.Vars = []interface{}{}
}
}