test: Remove .floor to verify if it's necessary

Author: pimpin

lib/couchbase-orm/types/timestamp.rb

@@ -3,10 +3,10 @@ module Types
         class Timestamp < ActiveModel::Type::DateTime
             def cast(value)
               return nil if value.nil?
-              return Time.at(value).floor if value.is_a?(Integer) || value.is_a?(Float)
-              return Time.at(value.to_i).floor if value.is_a?(String) && value =~ /^[0-9]+$/
-              return value.utc.floor if value.is_a?(Time)
-              super(value).utc.floor
+              return Time.at(value) if value.is_a?(Integer) || value.is_a?(Float)
+              return Time.at(value.to_i) if value.is_a?(String) && value =~ /^[0-9]+$/
+              return value.utc if value.is_a?(Time)
+              super(value).utc
             end
 
             def serialize(value)

spec/type_spec.rb

@@ -6,7 +6,7 @@
 class DateTimeWith3Decimal < CouchbaseOrm::Types::DateTime
   def cast(value)
     result = super(value)
-    result&.floor(3)
+    result
   end
 
   def serialize(value)