data_verifier
There are times when we change the approach of modifying data and want to verify that the data modified by the new approach is same as the old approach. This gem is build for such verifications.
Motivation
In my project, we replicate the data from other systems. There was a requirement where we changed the source of the data and code to replicate the data to our system. In testing phase we wanted to create a validation sheet, which can show the difference b/w the data in our system before and after the new source.
Installation
Add this line to your application's Gemfile:
gem 'data_verifier'Usage
This gem has to be used in two phases:
- Build Phase: Use this phase to build the baseline of the data before changing the code/approach
- Verification Phase: Use this phase to verify the new data against the baseline data
Config:
require 'data_verifier'
QUERIES = {
users_table: "select * from users where id=100",
phones_table: "select * from phones where user_id=100",
addresses_table: "select * from addresses where user_id=100",
}
config = DataVerifier::Config.new do |c|
c.db_adapter = :oracle
c.db_user = 'my_db_user'
c.db_password = 'my_pass'
c.db_host = 'localhost'
c.db_name = 'test_db'
c.db_port = '1521'
c.data_identifier = 'user_id_100'
c.queries = QUERIES
endInspector
Create an inspector to run in both build and verify mode.
configs = [config1, config2, config3]
inspector = DataVerifier::Inspector.new(configs, report_name: 'my_awesome_report')Building Baseline Data:
The below code will execute all the queries and store their result in json files.
inspector.inspect(phase: :BUILD)Verification:
Below code will again execute the queries and will compare it with the baseline data. After comparision it will create an excel file of the result.
inspector.inspect(phase: :VERIFY)Result:
License
MIT License
Copyright (c) 2019 Ajit Singh
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in all
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SOFTWARE.