0

我能够成功地模拟查询以从一个表中进行选择,如下所示:

sqlMock.ExpectQuery("^SELECT DISTINCT (.+) FROM myTable1, myTable2").
        WillReturnRows(myResultRows)

但是我无法模拟以下用于检查我的 postgres 数据库中是否存在表的查询:

SELECT EXISTS
        ( SELECT 1
        FROM information_schema.tables
        WHERE table_schema = 'public'
           AND table_name = 'myTable3' );

组合:

    existsRows := sqlmock.NewRows([]string{"exists"}).
        AddRow(true)

    slMock.ExpectQuery("^SELECT EXISTS").
        WillReturnRows(existsRows)

我也尝试过模拟SELECT 1,但我得到了完全相同的错误:

time="2019-09-27T15:49:41-07:00" level=panic msg="db query" error="call to Query 'SELECT EXISTS\n\t\t( SELECT 1\n\t\tFROM information_schema.tables\n\t\tWHERE table_schema = 'public'\n\t\t   AND table_name = 'myTable3' );' with args [], was not expected, next expectation is: ExpectedExec => expecting Exec or ExecContext which......

我正在使用的软件包:

import (
    "database/sql"
    "db"
    "os"
    "testing"

    // not explicitly called
    _ "github.com/denisenkom/go-mssqldb"
    _ "github.com/lib/pq"

    "github.com/DATA-DOG/go-sqlmock"
    "github.com/sirupsen/logrus"
)

任何想法或指针表示赞赏。我在网上找不到相关的例子

4

2 回答 2

0

我不确定,但认为问题在于您的查询缩进尝试删除换行符或您的查询中的制表SELECT EXISTS ( SELECT 1 FROM information_schema.tables WHERE table_schema = 'public' AND table_name = 'myTable3' );

像这样 SELECT EXISTS( SELECT 1 FROM information_schema.tables WHERE table_schema = 'public' AND table_name = 'myTable3' );

于 2019-09-28T04:27:05.067 回答
0

实际上,


    sqlMock.ExpectQuery("SELECT EXISTS \\( SELECT 1 FROM information_schema\\.tables WHERE table_schema = 'public' AND table_name = 'myTable3' \\);").
        WillReturnRows(existsRows)

成功了。

更多示例: https ://chromium.googlesource.com/external/github.com/DATA-DOG/go-sqlmock/+/e36ad8d068217ee8e4df50408476b153e115e3e6/README.md

我也用过 regex101.com

线索是它正在期待下一个查询。所以我们知道它根本没有读过这个。我的同事指出了这一点:)

于 2019-09-30T02:37:10.447 回答