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Due to the increasing number of hosts and devises we are using now in our company, so it’s more easier to cause IP conflict than ever, to avoid affecting the test result, it’s better to separate our network from intranet.
Summary:
It’s a huge benefit for using the virtual network, on the one hand, it saving the precious IP address, on the other hand, the virtual network is more stable for the intranet, so this makes our test result more reliable! Especially in HA, federation, test automation and so on.
In the following tutorial, we will take a look at how to manage our NAT network:
1. After we finish installing the VM Workstation, we should see two more virtual network interface cards in “Network and Sharing Center”
2. The network structure:
3. So firstly, change the network connection setting of our virtual machine:
4. Secondly, restart network interface card or run “ipconfig /renew” to connect to VMnet08 (here is need to confirm that we get a C class IP address, e.g. 192.168.x.x)
5. Lastly, for testing the connectivity, we can ping each other by the host name, and our machine will send ping packages to the network 10.30.x.x and 192.168.x.x.
6. we need to be sure we are pinging the machine in VMnet 08.
7. If you are unable to connect to the internet, please check the gateway of your VM machine, it should be 192.168.133.2 normally.
Well, you could always use Ruby itself, too, that way you’ll always have an up-to-date list:
exceptions = [] tree = {} ObjectSpace.each_object(Class) do |cls| next unless cls.ancestors.include? Exception next if exceptions.include? cls next if cls.superclass == SystemCallError # avoid dumping Errno's exceptions << cls cls.ancestors.delete_if {|e| [Object, Kernel].include? e }.reverse.inject(tree) {|memo,cls| memo[cls] ||= {}} end indent = 0 tree_printer = Proc.new do |t| t.keys.sort { |c1,c2| c1.name c2.name }.each do |k| space = (' ' * indent); space ||= '' puts space + k.to_s indent += 2; tree_printer.call t[k]; indent -= 2 end end tree_printer.call tree
The hierarchy:
Exception
NoMemoryError
ScriptError
LoadError
NotImplementedError
SyntaxError
SignalException
Interrupt
StandardError
ArgumentError
IOError
EOFError
IndexError
LocalJumpError
NameError
NoMethodError
RangeError
FloatDomainError
RegexpError
RuntimeError
SecurityError
SystemCallError
SystemStackError
ThreadError
TypeError
ZeroDivisionError
SystemExit
fatal
Mustache is …
So, for binding mustache in your Rails3 project, add the following gems to you Gemfile
gem 'mustache' gem 'mustache_rails3'
You can enable the mustache template handler by running
rails g mustache:install
Then in RAILS_ROOT/config/initializers/mustache.rb
rails g mustache:install # Be sure to install mustache gem and include mustache gem in project Gemfile. # Template Handler require 'mustache_rails' # Generator Rails.application.config.generators.template_engine :mustache # Need to change dynamically when the theme changed Mustache::Rails::Config.template_base_path = Rails.root.join('themes', 'n5ken', 'templates') Mustache::Rails::Config.shared_path = Rails.root.join('themes', 'n5ken', 'templates', 'shared') # You can change these defaults in, say, a Rails initializer or # environment.rb, e.g.: # # Mustache::Rails::Config.template_base_path = Rails.root.join('app', 'templates') module Config def self.template_base_path @template_base_path ||= ::Rails.root.join('app', 'templates') end def self.template_base_path=(value) @template_base_path = value end def self.template_extension @template_extension ||= 'html.mustache' end def self.template_extension=(value) @template_extension = value end def self.shared_path @shared_path ||= ::Rails.root.join('app', 'templates', 'shared') end def self.shared_path=(value) @shared_path = value end end
If we run scaffold to create a product model, we will get the response messages as follow:
$:/var/projects/template# rails g scaffold Product title:string description:text
invoke active_record
create db/migrate/20110703090715_create_products.rb
create app/models/product.rb
invoke test_unit
create test/unit/product_test.rb
create test/fixtures/products.yml
route resources :products
invoke scaffold_controller
create app/controllers/products_controller.rb
invoke mustache
create app/views/products
create app/views/products/index.rb
create app/templates/products/index.html.mustache
create app/views/products/edit.rb
create app/templates/products/edit.html.mustache
create app/views/products/show.rb
create app/templates/products/show.html.mustache
create app/views/products/new.rb
create app/templates/products/new.html.mustache
create app/templates/products/_form.html.mustache
invoke test_unit
create test/functional/products_controller_test.rb
invoke helper
create app/helpers/products_helper.rb
invoke test_unit
create test/unit/helpers/products_helper_test.rb
invoke stylesheets
create public/stylesheets/scaffold.css
From the message, it will generate mainly three folders: controller, view, templates.
For reviewing the concept and the structure of TCP, UDP, IP and HTTP, here are some diagram for reference, and will have further posts for discussion.
For most of my test automation projects, I want to attach the link to the source scripts in the test report, so I need to query the specific revision via http or https, after a few minute searching on the web, I found a solution in stackoverflow.com, adding a URL parameter “?p=Rev” will solve the problem:
e.g.
https://zhu11174.prod.quest.corp/svn/workbot/?p=300
Will retrieve the revision 300 of the codes.
refer link: http://stackoverflow.com/questions/157603/getting-specific-revision-via-http-with-visualsvn-server
Installing the REE by RVM in Ubuntu may have the following error, this because you missed some dependencies:
root@ubuntu:~# rvm install ree
Installing Ruby Enterprise Edition from source to: /usr/local/rvm/rubies/ree-1.8.7-2011.03
ree-1.8.7-2011.03 - #fetching (ruby-enterprise-1.8.7-2011.03)
curl: /usr/local/staf/lib/libcrypto.so.0.9.8: no version information available (required by /usr/lib/libcurl.so.4)
curl: /usr/local/staf/lib/libssl.so.0.9.8: no version information available (required by /usr/lib/libcurl.so.4)
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 7713k 100 7713k 0 0 57223 0 0:02:18 0:02:18 --:--:-- 50726
ree-1.8.7-2011.03 - #extracting ruby-enterprise-1.8.7-2011.03 to /usr/local/rvm/src/ree-1.8.7-2011.03
ree-1.8.7-2011.03 - #installing
ERROR: Error running './installer -a /usr/local/rvm/rubies/ree-1.8.7-2011.03 --dont-install-useful-gems ', please read /usr/local/rvm/log/ree-1.8.7-2011.03/install.log
ERROR: There has been an error while trying to run the ree installer. Halting the installation.
So, now you just need:
sudo apt-get install build-essential zlib1g-dev libssl-dev libreadline6-dev
TCP 3-Way Handshake is used to establish TCP socket connections and tear down TCP socket connections over the network.
From this image, we can see the TCP’s three-way handshaking technique is referred to as the 3-way handshake: SYN, SYN-ACK, ACK, SYNchronize and ACKnowledge messages are indicated by a bit inside the header of the TCP segment.
When the communication between two computers ends, another 3-way communication is performed to tear down the TCP socket connection. This setup and teardown of a TCP socket connection is part of what qualifies TCP a reliable protocol. TCP also acknowledges that data is successfully received and guarantees the data is reassembled in the correct order.
Note that UDP is connectionless. That means UDP doesn’t establish connections as TCP does, so UDP does not perform this 3-way handshake and for this reason, it is referred to as an unreliable protocol.
RVM is a good tool for managing Ruby and Gems, so the following codes shows you how to use:
Ruby Management
Use a particular Ruby
$ rvm use 1.8.6
Equivalently (because of RVM’s defaults):
$ rvm 1.8.6
List Ruby interpreters available for installation
$ rvm list known # MRI Rubies [ruby-]1.8.6[-p399] [ruby-]1.8.6-head [ruby-]1.8.7[-p330] [ruby-]1.8.7-head ...bla bla bla
List Ruby interpreters you’ve already installed
$ rvm list ruby-1.8.6-p383: ruby 1.8.6 (2009-08-04 patchlevel 383) [i686-darwin10.0.0] ruby-1.9.1-head: ruby 1.9.2dev (2009-10-30 trunk 25559) [x86_64-darwin10.0.0] ...bla bla bla
Ruby information for the current shell
$ rvm info rvm 0.0.49 (2009.09.24) [http://rvm.beginrescueend.com/] ruby: interpreter: "ruby" version: "1.8.6" ...bla bla bla
Install a specific Ruby version, e.g.
$ rvm install jruby
or
$ rvm install 1.9.2
Switch to gems directory for current ruby
$ rvm gemdir /Users/wayne/.gem/ruby/1.9.1
Switch to the system gems directory
$ rvm gemdir system /Library/Ruby/Gems/1.8
Use the user set default ruby
$ rvm default
Use the system ruby (as if no rvm)
$ rvm system
Reset to pre-RVM state.
$ rvm reset
Uninstall RVM installed 1.8.7 version
$ rvm uninstall 1.8.7
Named Gem Sets
Examples of creating and changing gem sets
$ rvm 1.9.2-head $ gem install rails -v 2.3.3 $ rvm gemset create rails222 rails126 Gemset 'rails222' created. Gemset 'rails126' created. $ rvm 1.9.2-head@rails222 $ gem install rails -v 2.2.2 $ rvm 1.9.2-head@rails126 $ gem install rails -v 1.2.6 $ rvm 1.8.7 $ gem install rails -v 1.2.3
If you are deploying to a server or you do not want to wait around for rdoc and ri to install for each gem then you can disable these for gem installs and updates. Place these two lines in your ~/.gemrc or /etc/gemrc:
install: --no-rdoc --no-ri update: --no-rdoc --no-ri
Due to the development environment is becoming much more complex than ever, the gems now may have conflict between some projects, so RVM is what exactly you need!
So RVM is not Ruby Virtual Machine, it’s Ruby Version Manager which is used to separate your various Ruby environment, by Using the RVM, you are able to install, uninstall difference Ruby, e.g. Ruby 1.8.x, 1.9.x, REE, IronRuby, and managing gems..
RVM is cool, right? so now, i think you can’t wait to have a try 
Installing RVM is quite easy, firstly, you need to confirm the following dependencies, my OS is Ubuntu 10.10:
cURL (apt-get install curl)
If you are ready, you just need to execute this command to finish the installation:
$ bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)
and add the line below to your bash profile, for example in Ubuntu is “/etc/profile”
[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # This loads RVM into a shell session.
Back to the command line, run “rvm -v”, and you should see the version information:
$ source /etc/profile $ rvm -v rvm 1.6.20 by Wayne E. Seguin (wayneeseguin@gmail.com) [https://rvm.beginrescueend.com/]
So, by now, you have finished the installation of RVM, congratulation!!!
This article is from: http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
10 Status Code DefinitionsEach Status-Code is described below, including a description of which method(s) it can follow and any metainformation required in the response.
Here are some codes we may see usually:
200 OK 304 Not Modified 400 Bad Request 403 Forbidden 404 Not Found 500 Internal Server Error 502 Bad Gateway 503 Service Unavailable 504 Gateway Timeout
