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package test
import (
"fmt"
"main/dao/mysql"
"main/logic"
"main/models"
"regexp"
"testing"
"github.com/DATA-DOG/go-sqlmock"
"github.com/jmoiron/sqlx"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestGetAllStudentInfo(t *testing.T) {
// 创建一个模拟数据库
db, mock, err := sqlmock.New()
require.NoError(t, err)
defer db.Close()
sqlxDB := sqlx.NewDb(db, "mysql")
originalDB := mysql.GetDb()
mysql.ChangeDb(sqlxDB)
defer func() { mysql.ChangeDb(originalDB) }()
// 定义期望的查询和结果
rows := sqlmock.NewRows([]string{"user_id", "user_name", "user_gender", "user_score"}).
AddRow(1, "Alice", 1, 90).
AddRow(2, "Bob", 1, 85)
mock.ExpectQuery("(?i)SELECT user_id, user_name, user_gender, user_score FROM user ORDER BY user_score ASC").
WillReturnRows(rows)
// 调用被测试函数
result, err := mysql.GetAllStudentInfo() // 确保函数路径正确
require.NoError(t, err)
// 验证结果
expected := &[]models.User{
{User_id: 1, User_name: "Alice", User_gender: 1, User_score: 90},
{User_id: 2, User_name: "Bob", User_gender: 1, User_score: 85},
}
assert.Equal(t, expected, result)
// 验证所有期望的操作都已执行
err = mock.ExpectationsWereMet()
require.NoError(t, err)
}
func TestChangeStuScore(t *testing.T) {
db, mock, err := sqlmock.New()
require.NoError(t, err)
defer db.Close()
sqlxDB := sqlx.NewDb(db, "mysql")
originalDB := mysql.GetDb()
mysql.ChangeDb(sqlxDB)
defer func() { mysql.ChangeDb(originalDB) }()
if err != nil {
fmt.Println(err)
}
sqlStr := `update user set
user_score = ?
where user_id=?`
mock.ExpectExec(regexp.QuoteMeta(sqlStr)).
WithArgs(95, 1).
WillReturnResult(sqlmock.NewResult(1, 1))
user := &models.UserScore{
User_id: 1,
User_score: 95,
}
err = mysql.ChangeStuScore(user)
require.NoError(t, err)
err = mock.ExpectationsWereMet()
require.NoError(t, err)
}
func TestWeightedRandomSelectWithMockRNG(t *testing.T) {
users := []models.User{
{User_id: 1, User_score: 0},
{User_id: 2, User_score: 10},
{User_id: 3, User_score: 20},
}
// 确定种子
rng := 42
expectedUser := users[0]
selectedUser := logic.WeightedRandomSelect(users, int64(rng))
require.Equal(t, expectedUser, selectedUser)
}