SQLMock 和 Gorm：模拟 Postgres 插入

问题描述

当我尝试使用 sqlMock 和 Gorm.io 模拟 Postgres 插入时，我收到一个错误，表明查询不是预期的。我尝试使用 regexp.QuoteMeta() 来包装和转义我的字符串，但它不起作用。我添加并删除了args和result，但错误继续出现

如何通过 sqlMock 设置预期的查询？

我给你原始的 PostgresQuery 和 usermodel

//RAW QUERY
INSERT INTO "users" ("id","name","surname","birthdate","company","custom_claims","deleted") VALUES ($1,$2,$3,$4,$5,$6,$7)' with args [{Name: Ordinal:1 Value:my_user_id} {Name: Ordinal:2 Value:<nil>} {Name: Ordinal:3 Value:<nil>} {Name: Ordinal:4 Value:<nil>} {Name: Ordinal:5 Value:<nil>} {Name: Ordinal:6 Value:<nil>} {Name: Ordinal:7 Value:<nil>}]

//Gorm model
type User struct {
    ID           string `gorm:"primaryKey"`
    Name         *string
    Surname      *string
    Birthdate    *time.Time
    Company      *string
    CustomClaims *json.RawMessage
    Deleted      gorm.DeletedAt
}

func (repository Repository) createuser(user users.User) (*users.User,error) {
    newUser := toRepositoryModel(user)

    err := repository.db.Create(newUser).Error //db -> *gorm.DB

    //....
}

//TEST
const expectedQuery = `INSERT INTO "users" ("id",$7)' with args [{Name: Ordinal:1 Value:my_user_id} {Name: Ordinal:2 Value:<nil>} {Name: Ordinal:3 Value:<nil>} {Name: Ordinal:4 Value:<nil>} {Name: Ordinal:5 Value:<nil>} {Name: Ordinal:6 Value:<nil>} {Name: Ordinal:7 Value:<nil>}]`
suite.mock.ExpectQuery(regexp.QuoteMeta(experctedQuery)) //HOW SHOULD BE MODIFIED?
user,err2 := postgres.createuser(users.User{
   ID: ID,})

//ERROR
"call to ExecQuery 'INSERT INTO \"users\" (\"id\",\"name\",\"surname\",\"birthdate\",\"company\",\"custom_claims\",\"deleted\") VALUES ($1,$7)' with args [{Name: Ordinal:1 Value:my_user_id} {Name: Ordinal:2 Value:<nil>} {Name: Ordinal:3 Value:<nil>} {Name: Ordinal:4 Value:<nil>} {Name: Ordinal:5 Value:<nil>} {Name: Ordinal:6 Value:<nil>} {Name: Ordinal:7 Value:<nil>}],was not expected,next expectation is: ExpectedQuery => expecting Query,QueryContext or QueryRow which:\n  - matches sql: 'INSERT INTO \"users\" \\(\"id\",\"deleted\"\\) VALUES \\(\\$1,\\$2,\\$3,\\$4,\\$5,\\$6,\\$7\\)' with args \\[\\{Name: Ordinal:1 Value:my_user_id\\} \\{Name: Ordinal:2 Value:<nil>\\} \\{Name: Ordinal:3 Value:<nil>\\} \\{Name: Ordinal:4 Value:<nil>\\} \\{Name: Ordinal:5 Value:<nil>\\} \\{Name: Ordinal:6 Value:<nil>\\} \\{Name: Ordinal:7 Value:<nil>\\}\\]'\n  - is without arguments",}
          call to ExecQuery 'INSERT INTO "users" ("id",QueryContext or QueryRow which:
            - matches sql: 'INSERT INTO "users" \("id","deleted"\) VALUES \(\$1,\$2,\$3,\$4,\$5,\$6,\$7\)' with args \[\{Name: Ordinal:1 Value:my_user_id\} \{Name: Ordinal:2 Value:<nil>\} \{Name: Ordinal:3 Value:<nil>\} \{Name: Ordinal:4 Value:<nil>\} \{Name: Ordinal:5 Value:<nil>\} \{Name: Ordinal:6 Value:<nil>\} \{Name: Ordinal:7 Value:<nil>\}\]'
            - is without arguments
      occurred

解决方法

我已经成功了。

suite.mock.ExpectExec(regexp.QuoteMeta(`INSERT INTO "users" ("id","name","surname","birthdate","company","custom_claims","deleted") VALUES ($1,$2,$3,$4,$5,$6,$7)`)).WithArgs(ID,nil,nil).WillReturnResult(sqlmock.NewResult(0,1))

更新

Postgres 选择：

//Simulate returned row(s)
userMockRows := sqlmock.NewRows([]string{"id","deleted"}).AddRow(ID,nil)

//Expect SELECT
suite.mock.ExpectQuery(regexp.QuoteMeta(`SELECT * FROM "users" WHERE id = $1`)).WithArgs(ID).WillReturnRows(userMockRows)

Postgres 更新：

suite.mock.ExpectExec(regexp.QuoteMeta(`UPDATE "users" SET "name"=$1,"surname"=$2,"birthdate"=$3,"company"=$4,"custom_claims"=$5,"deleted"=$6 WHERE "id" = $7`)).WithArgs(newName,ID).WillReturnResult(sqlmock.NewResult(0,1))

go go-gorm go-sqlmock