- My View
If i done testing either manual/Automation on developer instance ,whether it will cover on my production instance or not?
This depends on various factors. If you want to do testing on same environment as production then clone your dev with production and carry out testing.
Because no one can tell you wether testing in dev will cover testing in production or not. There can be some issue's or factors that may affect production.
Version and Patch also is a factor.
can we able to carry the testing from dev to production if we need which is testing data from dev to prod instance ?
When you clone all your production data can also be moved to dev. So it will be a replica of Production.
You can use same data for testing.
hope your answer make me clear on part of moving data from dev to production while doing clone.
Don't move data from Dev to Prod. Move it from Prod to Dev for testing.
can we move data dev to production which is cloning part consist of data also?
It is not recommended to clone production. If you clone data from dev to production it will have a tremendous risk and may create huge problems.
Cloning can transfer data but not recommended. So please don't transfer cloning data to production.