mirror of https://github.com/go-gorm/gorm.git
102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
package clause_test
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import (
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"sync"
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"testing"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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"gorm.io/gorm/schema"
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"gorm.io/gorm/utils/tests"
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)
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func TestJoin(t *testing.T) {
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results := []struct {
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name string
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join clause.Join
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sql string
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}{
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{
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name: "LEFT JOIN",
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join: clause.Join{
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Type: clause.LeftJoin,
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Table: clause.Table{Name: "user"},
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ON: clause.Where{
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Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
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},
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},
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sql: "LEFT JOIN `user` ON `user_info`.`user_id` = `users`.`id`",
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},
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{
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name: "RIGHT JOIN",
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join: clause.Join{
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Type: clause.RightJoin,
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Table: clause.Table{Name: "user"},
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ON: clause.Where{
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Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
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},
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},
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sql: "RIGHT JOIN `user` ON `user_info`.`user_id` = `users`.`id`",
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},
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{
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name: "INNER JOIN",
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join: clause.Join{
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Type: clause.InnerJoin,
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Table: clause.Table{Name: "user"},
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ON: clause.Where{
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Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
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},
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},
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sql: "INNER JOIN `user` ON `user_info`.`user_id` = `users`.`id`",
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},
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{
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name: "CROSS JOIN",
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join: clause.Join{
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Type: clause.CrossJoin,
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Table: clause.Table{Name: "user"},
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ON: clause.Where{
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Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
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},
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},
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sql: "CROSS JOIN `user` ON `user_info`.`user_id` = `users`.`id`",
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},
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{
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name: "USING",
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join: clause.Join{
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Type: clause.InnerJoin,
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Table: clause.Table{Name: "user"},
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Using: []string{"id"},
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},
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sql: "INNER JOIN `user` USING (`id`)",
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},
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{
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name: "Expression",
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join: clause.Join{
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// Invalid
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Type: clause.LeftJoin,
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Table: clause.Table{Name: "user"},
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ON: clause.Where{
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Exprs: []clause.Expression{clause.Eq{clause.Column{Table: "user_info", Name: "user_id"}, clause.PrimaryColumn}},
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},
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// Valid
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Expression: clause.Join{
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Type: clause.InnerJoin,
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Table: clause.Table{Name: "user"},
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Using: []string{"id"},
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},
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},
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sql: "INNER JOIN `user` USING (`id`)",
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},
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}
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for _, result := range results {
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t.Run(result.name, func(t *testing.T) {
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user, _ := schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)
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stmt := &gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}
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result.join.Build(stmt)
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if result.sql != stmt.SQL.String() {
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t.Errorf("want: %s, got: %s", result.sql, stmt.SQL.String())
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}
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})
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}
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}
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