Ruby on Rails' style test fixtures for Golang, use database transation to keep database clean state

Install the package by:

go get -u github.com/Martin91/gofixtures

1. Reference to dummy to see demo yaml files.
2. In your project, initalize database connection like:

   import (
       _ "github.com/go-sql-driver/mysql"
       "github.com/Martin91/gofixtures"
   )
   
   // fixtures is shipped with a builtin sql driver which supports rollback db automatically,
   //  so it is required to setup a transational *sql.DB by fixtures
   db := fixtures.OpenDB("mysql", "root:@tcp(localhost:3306)/?charset=utf8&parseTime=True&loc=Local")
   fixtures := fixtures.Load(tt.args.path, db)
   
   // do your test and something else
   
   // once the program exit, fixtures will rollback all database changes automatically
   
   // or if you want to manually rollback, run
   db.Driver().(base.TxDriverIface).ManualRollback()

This repository is still under active development and the overall design and performance is unstable.

[x] YAML based simple and clean syntax
[x] Built-in Faker supported
[x] Bundled field evaluators, enable you to customize dynamic data generation
[x] Support specifying database and tables
[x] Based on standard sql package, compatible with different dialects
[x] Transaction based database cleaner
[ ] Templates to support batch data

1. Test with different databases
2. Complete test cases with high test coverage
3. Review the overall architecture design