package tests_test

import (
	"testing"

	"gorm.io/gorm"
	. "gorm.io/gorm/utils/tests"
)

func TestHasManyAssociation(t *testing.T) {
	user := *GetUser("hasmany", Config{Pets: 2})

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	CheckUser(t, user, user)

	// Find
	var user2 User
	DB.Find(&user2, "id = ?", user.ID)

# Test Guide

```bash
cd tests
# prepare test databases
docker-compose up

# run all tests
./tests_all.sh

package callbacks

import (
	"reflect"
	"testing"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

func TestLoadOrStoreVisitMap(t *testing.T) {
	var vm visitMap
	var loaded bool
	type testM struct {
		Name string
	}

	t1 := testM{Name: "t1"}
	t2 := testM{Name: "t2"}
	t3 := testM{Name: "t3"}

	vm = make(visitMap)
	if loaded = loadOrStoreVisitMap(&vm, reflect.ValueOf(&t1)); loaded {

package schema_test

import (
	"sync"
	"testing"

	"gorm.io/gorm"
	"gorm.io/gorm/schema"
)

func checkStructRelation(t *testing.T, data interface{}, relations ...Relation) {
	if s, err := schema.Parse(data, &sync.Map{}, schema.NamingStrategy{}); err != nil {
		t.Errorf("Failed to parse schema, got error %v", err)
	} else {
		for _, rel := range relations {
			checkSchemaRelation(t, s, rel)
		}
	}
}

package clause_test

import (
	"fmt"
	"sort"
	"strings"
	"testing"

	"gorm.io/gorm/clause"
)

func TestSet(t *testing.T) {
	results := []struct {
		Clauses []clause.Interface
		Result  string
		Vars    []interface{}
	}{
		{
			[]clause.Interface{
				clause.Update{},
				clause.Set([]clause.Assignment{{clause.PrimaryColumn, 1}}),
			},
			"UPDATE `users` SET `users`.`id`=?",
			[]interface{}{1},
		},

package clause_test

import (
	"fmt"
	"testing"

	"gorm.io/gorm/clause"
)

func TestValues(t *testing.T) {
	results := []struct {
		Clauses []clause.Interface
		Result  string
		Vars    []interface{}
	}{
		{
			[]clause.Interface{
				clause.Insert{},
				clause.Values{
					Columns: []clause.Column{{Name: "name"}, {Name: "age"}},
					Values:  [][]interface{}{{"jinzhu", 18}, {"josh", 1}},
				},
			},

package callbacks

import (
	"reflect"
	"testing"
)

func TestLoadOrStoreVisitMap(t *testing.T) {
	var vm visitMap
	var loaded bool
	type testM struct {
		Name string
	}

	t1 := testM{Name: "t1"}
	t2 := testM{Name: "t2"}
	t3 := testM{Name: "t3"}

	vm = make(visitMap)
	if loaded = loadOrStoreVisitMap(&vm, reflect.ValueOf(&t1)); loaded {
		t.Fatalf("loaded should be false")
	}

		}

		if len(data.err) > 0 && err == nil {
			t.Errorf("callbacks tests #%v should got error %v, but not", idx+1, data.err)
		} else if len(data.err) == 0 && err != nil {
			t.Errorf("callbacks tests #%v should not got error, but got %v", idx+1, err)
		}

		if ok, msg := assertCallbacks(callbacks.Create(), data.results); !ok {
			t.Errorf("callbacks tests #%v failed, got %v", idx+1, msg)
		}
	}
}

package clause_test

import (
	"sync"
	"testing"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
	"gorm.io/gorm/utils/tests"
)

func BenchmarkSelect(b *testing.B) {
	user, _ := schema.Parse(&tests.User{}, &sync.Map{}, db.NamingStrategy)

	for i := 0; i < b.N; i++ {
		stmt := gorm.Statement{DB: db, Table: user.Table, Schema: user, Clauses: map[string]clause.Clause{}}

				).Find(&Language{})
			},
			expected: `SELECT * FROM "languages" WHERE d = 4 OR c = 3 OR (a = 1 AND b = 2)`,
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			assertEqualSQL(t, test.expected, DB.ToSQL(test.queryFn))
		})
	}