user model generation
migrate database
user testing
validatio of name
validation testing
validiation test for email
added validate in model
added test for user string too long
pass test for user string too long
tests for valid email address
regex for email validiaiotn in model
test for email duplication
passing validation code
test for dublicaiton and case sensitivity
passing email duplication and case insensitivity
added index to database
database migration and email downcase
encrypted password gem
password test
password migration