class BCrypt::Password

@password.to_s == @password.to_s # => True
@password.to_s == @password # => True
@password == @password.to_s # => False
@password == @password # => False
@password == secret # => True

@password = BCrypt::Password.create(secret)
secret = "my secret"

Comparison edge case/gotcha:

Compares a potential secret against the hash. Returns true if the secret is the original secret, false otherwise.

def ==(secret)
  super(BCrypt::Engine.hash_secret(secret, @salt))
end