在Go程序中运行测试之前如何获取数据库架构

I have to run Go tests for database interactions. Database Schema is in a .sql file. I have a folder A which has package main and I have 3 folders B, C and D inside A which have package B, C and D respectively. B,C,D have test files in them but A does not have any tests. I want a way so that I just do a

go test ./...

from A and all my tests run after sourcing schema into mysql.

I tried making a main_test.go file in A and placing a TestMain function there. But it was not working.

you can use init function on main_test.go

package main

    func init(){
      // load and execute your db schema here. 
    }

https://golang.org/ref/spec#Package_initialization

the init() on main package will be executed on package initialization