Sql server sqlmock中MSSQL表值参数的测试
我有一个函数,该函数旨在使用表值参数和过程将大量元素插入MSSQL数据库Sql server sqlmock中MSSQL表值参数的测试,sql-server,go,go-sqlmock,Sql Server,Go,Go Sqlmock,我有一个函数,该函数旨在使用表值参数和过程将大量元素插入MSSQL数据库 func (requester *Requester) doQuery(ctx context.Context, dtos interface{}) error { conn, err := requester.conn.Conn(ctx) if err != nil { return err } defer func() { if clErr := con
func (requester *Requester) doQuery(ctx context.Context, dtos interface{}) error {
conn, err := requester.conn.Conn(ctx)
if err != nil {
return err
}
defer func() {
if clErr := conn.Close(); clErr != nil {
err = clErr
}
}()
tx, err := conn.BeginTx(ctx, &sql.TxOptions{Isolation: sql.LevelRepeatableRead, ReadOnly: false})
if err != nil {
return err
}
defer func() {
if p := recover(); p != nil {
tx.Rollback()
panic(p)
} else if err != nil {
tx.Rollback()
} else {
tx.Commit()
}()
param := sql.Named("TVP", mssql.TVP{
TypeName: "MyTypeName",
Value: dtos,
})
return tx.ExecContext(ctx, "EXEC [dbo].[usp_InsertConsumption] @TVP", param)
}
我为这个函数编写的测试包括在下面(注意,它取决于银杏和gomega):
现在,这段代码是为MySQL上下文编写的,因为我已经将代码移植到MSSQL,所以我得到了一个特殊的错误:
sql: converting argument with name \"TVP\" type: unsupported type mssql.TVP, a struct
sqlmock似乎正在尝试调用TVP对象上的
ConvertValue
,这是无效的。那么,如何使sqlmock正确处理该值,以便能够围绕查询进行单元测试呢?我在这里发现,sqlmock有一个名为ValueConverterOption
的函数,当提供了一个自定义驱动程序.ValueConverter
接口时。每次调用ConvertValue
时,都会调用此函数来代替标准函数。如果您想在ExecContext
函数接收到非标准参数(本例中为TVP
)时测试该函数,则可以使用该函数将自定义转换逻辑注入sqlmock
type mockTvpConverter struct {}
func (converter *mockTvpConverter) ConvertValue(raw interface{}) (driver.Value, error) {
// Since this function will take the place of every call of ConvertValue, we will inevitably
// the fake string we return from this function so we need to check whether we've recieved
// that or a TVP. More extensive logic may be required
switch inner := raw.(type) {
case string:
return raw.(string), nil
case mssql.TVP:
// First, verify the type name
Expect(inner.TypeName).Should(Equal("MyTypeName"))
// VERIFICATION LOGIC HERE
// Finally, return a fake value that we can use when verifying the arguments
return "PASSED", nil
}
// We had an invalid type; return an error
return nil, fmt.Errorf("Invalid type")
}
这意味着,测试将变成:
Describe("SQL Tests", func() {
It("AddConsumption - No failures - Added", func() {
db, mock, _ := sqlmock.New(sqlmock.ValueConverterOption(&mockTvpConverter{}))
requester := Requester{conn: db}
defer db.Close()
mock.ExpectBegin()
mock.ExpectExec(regexp.QuoteMeta("EXEC [dbo].[usp_InsertConsumption] @TVP")).
WithArgs("PASSED").WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectExec(regexp.QuoteMeta("EXEC [dbo].[usp_InsertTags] @TVP")).
WithArgs("PASSED").WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectCommit()
err := requester.doQuery(context.TODO(), generateData())
Expect(err).ShouldNot(HaveOccurred())
Expect(mock.ExpectationsWereMet()).ShouldNot(HaveOccurred())
})
})
Describe("SQL Tests", func() {
It("AddConsumption - No failures - Added", func() {
db, mock, _ := sqlmock.New(sqlmock.ValueConverterOption(&mockTvpConverter{}))
requester := Requester{conn: db}
defer db.Close()
mock.ExpectBegin()
mock.ExpectExec(regexp.QuoteMeta("EXEC [dbo].[usp_InsertConsumption] @TVP")).
WithArgs("PASSED").WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectExec(regexp.QuoteMeta("EXEC [dbo].[usp_InsertTags] @TVP")).
WithArgs("PASSED").WillReturnResult(sqlmock.NewResult(1, 1))
mock.ExpectCommit()
err := requester.doQuery(context.TODO(), generateData())
Expect(err).ShouldNot(HaveOccurred())
Expect(mock.ExpectationsWereMet()).ShouldNot(HaveOccurred())
})
})