diff --git a/.coveralls.yml b/.coveralls.yml
new file mode 100644
index 0000000..cf27a37
--- /dev/null
+++ b/.coveralls.yml
@@ -0,0 +1 @@
+service_name: travis-pro
diff --git a/.gitignore b/.gitignore
index 4c6e75c..5ae9730 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .vscode
 .idea
 .DS_Store
+coverage
\ No newline at end of file
diff --git a/.rspec b/.rspec
new file mode 100644
index 0000000..c99d2e7
--- /dev/null
+++ b/.rspec
@@ -0,0 +1 @@
+--require spec_helper
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..ab33aaf
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: ruby
+before_install:
+  - gem install bundler
+rvm:
+  - 2.6.3
+script:
+  - bundle exec rspec
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..dd100db
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,7 @@
+source 'https://gems.ruby-china.com/'
+
+group :development, :test do
+  gem 'rspec'
+  gem 'simplecov'
+  gem 'coveralls'
+end
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..846af90
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,51 @@
+GEM
+  remote: https://gems.ruby-china.com/
+  specs:
+    coveralls (0.7.2)
+      multi_json (~> 1.3)
+      rest-client (= 1.6.7)
+      simplecov (>= 0.7)
+      term-ansicolor (= 1.2.2)
+      thor (= 0.18.1)
+    diff-lcs (1.3)
+    docile (1.3.2)
+    json (2.2.0)
+    mime-types (3.3)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2019.1009)
+    multi_json (1.14.1)
+    rest-client (1.6.7)
+      mime-types (>= 1.16)
+    rspec (3.9.0)
+      rspec-core (~> 3.9.0)
+      rspec-expectations (~> 3.9.0)
+      rspec-mocks (~> 3.9.0)
+    rspec-core (3.9.0)
+      rspec-support (~> 3.9.0)
+    rspec-expectations (3.9.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.9.0)
+    rspec-mocks (3.9.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.9.0)
+    rspec-support (3.9.0)
+    simplecov (0.17.1)
+      docile (~> 1.1)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
+    term-ansicolor (1.2.2)
+      tins (~> 0.8)
+    thor (0.18.1)
+    tins (0.13.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  coveralls
+  rspec
+  simplecov
+
+BUNDLED WITH
+   2.0.2
diff --git a/README.md b/README.md
index 5c5fdd6..daa7dd8 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,9 @@
 # client-data-adapter
 
-## TODO
\ No newline at end of file
+[![Build Status](https://travis-ci.org/jinghua000/client-data-adapter.svg?branch=master)](https://travis-ci.org/jinghua000/client-data-adapter)
+[![Gem Version](https://badge.fury.io/rb/client-data-adapter.svg)](https://rubygems.org/gems/client-data-adapter)
+[![Coverage Status](https://coveralls.io/repos/github/jinghua000/client-data-adapter/badge.svg?branch=master)](https://coveralls.io/github/jinghua000/client-data-adapter?branch=master)
+
+## Introduction
+
+TODO
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..6d349f9
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,3 @@
+task :test do
+  p 123
+end
\ No newline at end of file
diff --git a/build.sh b/build.sh
new file mode 100644
index 0000000..43bcfef
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,2 @@
+gem build client-data-adapter.gemspec
+gem install client-data-adapter-0.0.1.gem
\ No newline at end of file
diff --git a/client-data-adapter.gemspec b/client-data-adapter.gemspec
index 02959d4..ba16e77 100644
--- a/client-data-adapter.gemspec
+++ b/client-data-adapter.gemspec
@@ -1,3 +1,6 @@
+lib = File.expand_path('../lib', __FILE__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+
 Gem::Specification.new do |s|
 
   s.name = 'client-data-adapter'
diff --git a/demo/book.rb b/demo/book.rb
new file mode 100644
index 0000000..a18fd69
--- /dev/null
+++ b/demo/book.rb
@@ -0,0 +1,84 @@
+require_relative '../lib/client-data-adapter'
+require_relative 'book_shelf'
+require_relative 'category'
+
+class Book
+
+  include ClientDataAdapter
+
+  define_adapter do
+
+    link_one :book_shelf
+    link_many :categories
+
+    adapter do
+      {
+        id: id,
+        title: title,
+      }
+    end
+
+    with :full_title do
+      "<#{title}>"
+    end
+
+    with :my_awesome_title do
+      "my_awesome_title"
+    end
+
+    with :pass1 do |*args|
+      args << 'pass1'
+    end
+
+    with :pass2 do |*args|
+      args << 'pass2'
+    end
+
+    with :id do
+      return id if true
+      # :nocov:
+      raise 'CODE WILL NOT REACH HERE.'
+      # :nocov:
+    end
+
+  end
+
+  attr_accessor :id, :title, :book_shelf_id
+
+  def initialize(**opt)
+
+    self.id = opt[:id]
+    self.title = opt[:title]
+    self.book_shelf_id = opt[:book_shelf_id]
+
+  end
+
+  def self.demo
+    new(
+      id: 1,
+      title: 'My Book',
+      book_shelf_id: 1,
+    )
+  end
+
+  def my_title
+    'my title'
+  end
+
+  def my_awesome_title
+    'no no no'
+  end
+
+  def sub_title(sub)
+    "#{title}-#{sub}"
+  end
+
+  def book_shelf
+    BookShelf.demo
+  end
+
+  def categories
+    [Category.new(id: 1, cat: 'one'), Category.new(id: 2, cat: 'two')]
+  end
+
+end
\ No newline at end of file
diff --git a/demo/book_shelf.rb b/demo/book_shelf.rb
new file mode 100644
index 0000000..192dc21
--- /dev/null
+++ b/demo/book_shelf.rb
@@ -0,0 +1,46 @@
+require_relative 'library'
+
+class BookShelf
+
+  include ClientDataAdapter
+
+  define_adapter do
+
+    link_one :library
+
+    adapter do
+      {
+        id: id,
+        desc: desc,
+      }
+    end
+
+    with :other_desc do
+      'other desc'
+    end
+
+  end
+
+  attr_accessor :id, :desc, :library_id
+
+  def initialize(**opt)
+
+    self.id = opt[:id]
+    self.desc = opt[:desc]
+    self.library_id = opt[:library_id]
+
+  end
+
+  def self.demo
+    new(
+      id: 1,
+      desc: 'my book shelf',
+      library_id: 1,
+    )
+  end
+
+  def library
+    Library.demo
+  end
+
+end
\ No newline at end of file
diff --git a/demo/category.rb b/demo/category.rb
new file mode 100644
index 0000000..108aae6
--- /dev/null
+++ b/demo/category.rb
@@ -0,0 +1,29 @@
+class Category
+
+  include ClientDataAdapter
+
+  define_adapter do
+
+    adapter do
+      {
+        id: id,
+        cat: cat,
+      }
+    end
+
+  end
+
+  attr_accessor :id, :cat
+
+  def initialize(**opt)
+
+    self.id = opt[:id]
+    self.cat = opt[:cat]
+
+  end
+
+  def summary
+    'summary'
+  end
+
+end
\ No newline at end of file
diff --git a/demo/library.rb b/demo/library.rb
new file mode 100644
index 0000000..6ec571e
--- /dev/null
+++ b/demo/library.rb
@@ -0,0 +1,36 @@
+class Library
+
+  include ClientDataAdapter
+
+  define_adapter do
+
+    adapter do
+      {
+        id: id,
+        size: size,
+      }
+    end
+
+    with :welcome do
+      'welcome'
+    end
+
+  end
+
+  attr_accessor :id, :size, :city_id
+
+  def initialize(**opt)
+
+    self.id = opt[:id]
+    self.size = opt[:size]
+
+  end
+
+  def self.demo
+    new(
+      id: 1,
+      size: 'small'
+    )
+  end
+
+end
\ No newline at end of file
diff --git a/lib/client-data-adapter.rb b/lib/client-data-adapter.rb
index 568d2bd..eedd948 100644
--- a/lib/client-data-adapter.rb
+++ b/lib/client-data-adapter.rb
@@ -1,7 +1,11 @@
+require_relative 'client-data-adapter/class_methods'
+require_relative 'client-data-adapter/instance_methods'
+
 module ClientDataAdapter
 
-  def self.demo
-    'hello'
+  def self.included(base)
+    base.include(ClientDataAdapter::InstanceMethods)
+    base.extend(ClientDataAdapter::ClassMethods)
   end
 
 end
diff --git a/lib/client-data-adapter/class_methods.rb b/lib/client-data-adapter/class_methods.rb
new file mode 100644
index 0000000..317185c
--- /dev/null
+++ b/lib/client-data-adapter/class_methods.rb
@@ -0,0 +1,18 @@
+require_relative 'config'
+require_relative 'wrapper'
+
+module ClientDataAdapter
+  module ClassMethods
+
+    def define_adapter(&block)
+
+      const_set(ADAPTER_WRAPPER, Class.new(Wrapper))
+
+      define_method :adapter_wrapper do
+        @__adapter_wrapper__ ||= self.class.const_get(ADAPTER_WRAPPER).new(self, &block)
+      end
+
+    end
+
+  end
+end
\ No newline at end of file
diff --git a/lib/client-data-adapter/config.rb b/lib/client-data-adapter/config.rb
new file mode 100644
index 0000000..b55e182
--- /dev/null
+++ b/lib/client-data-adapter/config.rb
@@ -0,0 +1,6 @@
+module ClientDataAdapter
+
+  ADAPTER_WRAPPER = :AdapterWrapper
+  ADAPTER = :adapter
+
+end
diff --git a/lib/client-data-adapter/instance_methods.rb b/lib/client-data-adapter/instance_methods.rb
new file mode 100644
index 0000000..376ee53
--- /dev/null
+++ b/lib/client-data-adapter/instance_methods.rb
@@ -0,0 +1,41 @@
+require_relative 'util'
+
+module ClientDataAdapter
+  module InstanceMethods
+
+    def adapter(*args)
+
+      length = args.length
+
+      if length == 0
+        adapter_wrapper.__adapter__
+      else
+        adapter_wrapper.__adapter__.merge(
+
+          *args.map do |arg|
+            if [String, Symbol].include?(arg.class)
+              __merge_to_adapter__(arg.to_sym, nil)
+            elsif arg.is_a?(Hash)
+              arg.map(&method(:__merge_to_adapter__))
+            else
+              raise '[ERROR] Not available arguments type.'
+            end
+          end.flatten,
+
+        )
+      end
+    end
+
+    private
+
+    def __merge_to_adapter__(key, params)
+      {}.tap do |hah|
+        hah["#{key}".to_sym] =
+          adapter_wrapper.respond_to?(key) ?
+            adapter_wrapper.public_send(key, *params) :
+            public_send(key, *params)
+      end
+    end
+
+  end
+end
diff --git a/lib/client-data-adapter/util.rb b/lib/client-data-adapter/util.rb
new file mode 100644
index 0000000..50a105a
--- /dev/null
+++ b/lib/client-data-adapter/util.rb
@@ -0,0 +1,23 @@
+module ClientDataAdapter
+  module Util
+
+    module_function
+
+    # Convert a Proc to Lambda.
+    #
+    # @param [Proc] source_proc
+    # @return [Lambda]
+    def to_lambda(source_proc)
+      return source_proc if source_proc.lambda?
+
+      unbound_method = Module.new.module_eval do
+        instance_method(define_method(:_, &source_proc))
+      end
+
+      lambda do |*args, &block|
+        unbound_method.bind(self).call(*args, &block)
+      end
+    end
+
+  end
+end
diff --git a/lib/client-data-adapter/wrapper.rb b/lib/client-data-adapter/wrapper.rb
new file mode 100644
index 0000000..f3dbdf0
--- /dev/null
+++ b/lib/client-data-adapter/wrapper.rb
@@ -0,0 +1,46 @@
+require_relative 'util'
+
+module ClientDataAdapter
+  class Wrapper
+
+    attr_reader :target
+
+    def initialize(target, &block)
+      @target = target
+
+      self.class.module_eval(&block)
+    end
+
+    def self.adapter(&block)
+      with('__adapter__', &block)
+    end
+
+    def self.link_one(*associations)
+      associations.each do |assoc|
+        with(assoc) do |*args|
+          public_send(assoc.to_sym).adapter(*args)
+        end
+      end
+    end
+
+    def self.link_many(*associations)
+      associations.each do |assoc|
+        with(assoc) do |*args|
+          public_send(assoc.to_sym).map do |elem|
+            elem.adapter(*args)
+          end
+        end
+      end
+    end
+
+    def self.with(method_name, &block)
+      define_method(method_name.to_sym) do |*args|
+        target.instance_exec(
+          *args,
+          &Util.to_lambda(block)
+        )
+      end
+    end
+
+  end
+end
diff --git a/spec/adapter_spec.rb b/spec/adapter_spec.rb
new file mode 100644
index 0000000..18f4c2b
--- /dev/null
+++ b/spec/adapter_spec.rb
@@ -0,0 +1,81 @@
+require_relative '../demo/book'
+
+RSpec.describe Book do
+
+  before(:each) do
+    @book = Book.demo
+  end
+
+  it "adapter method return adapter wrapper's __adapter__" do
+
+    expect(@book.adapter).to eq(id: @book.id, title: @book.title)
+    expect(@book.adapter).to eq(@book.adapter_wrapper.__adapter__)
+
+  end
+
+  it "adapter can contain `with` method's returns" do
+
+    expect(@book.adapter_wrapper.respond_to? :full_title).to eq(true)
+    expect(@book.adapter(:full_title))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            full_title: @book.adapter_wrapper.full_title
+          )
+
+  end
+
+  it "adapter can contain origin class instance method" do
+
+    expect(@book.adapter_wrapper.respond_to? :my_title).to eq(false)
+    expect(@book.adapter(:my_title))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            my_title: @book.my_title
+          )
+
+  end
+
+  it "methods inside adapter wrapper will override method outside" do
+
+    expect(@book.my_awesome_title).not_to eq(@book.adapter_wrapper.my_awesome_title)
+    expect(@book.adapter(:my_awesome_title))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            my_awesome_title: @book.adapter_wrapper.my_awesome_title
+          )
+
+  end
+
+  it "adapter can pass arguments in `with` method block" do
+
+    expect(@book.adapter(pass1: [:a, :b, :c], pass2: [:x, :y, :z]))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            pass1: @book.adapter_wrapper.pass1(*[:a, :b, :c]),
+            pass2: @book.adapter_wrapper.pass2(*[:x, :y, :z]),
+          )
+
+  end
+
+  it "adapter can pass arguments with origin class instance methods" do
+
+    expect(@book.adapter(sub_title: 'yes'))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            sub_title: @book.sub_title('yes')
+          )
+
+  end
+
+  it "not available arguments type will raise an error" do
+
+    expect { @book.adapter(123) }.to raise_error(RuntimeError)
+
+  end
+
+end
\ No newline at end of file
diff --git a/spec/adapter_wrapper_spec.rb b/spec/adapter_wrapper_spec.rb
new file mode 100644
index 0000000..4ec3973
--- /dev/null
+++ b/spec/adapter_wrapper_spec.rb
@@ -0,0 +1,21 @@
+require_relative '../demo/book'
+
+RSpec.describe Book do
+
+  before(:each) do
+    @book = Book.demo
+  end
+
+  it "adapter wrapper should apply origin instance's self-point" do
+
+    expect(@book.adapter_wrapper.target).to eq(@book)
+
+  end
+
+  it "adapter wrapper's methods can use return inside" do
+
+    expect(@book.adapter_wrapper.id).to eq(@book.id)
+
+  end
+
+end
\ No newline at end of file
diff --git a/spec/demo_spec.rb b/spec/demo_spec.rb
new file mode 100644
index 0000000..4bef900
--- /dev/null
+++ b/spec/demo_spec.rb
@@ -0,0 +1,5 @@
+require_relative '../demo/book'
+
+RSpec.describe Book do
+
+end
\ No newline at end of file
diff --git a/spec/link_spec.rb b/spec/link_spec.rb
new file mode 100644
index 0000000..cf17bb6
--- /dev/null
+++ b/spec/link_spec.rb
@@ -0,0 +1,104 @@
+require_relative '../demo/book'
+
+RSpec.describe Book do
+
+  before(:each) do
+    @book = Book.demo
+  end
+
+  it "link one should call linked target's adapter method" do
+
+    expect(@book.adapter(:book_shelf))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            book_shelf: {
+              id: @book.book_shelf.id,
+              desc: @book.book_shelf.desc,
+            }
+          )
+
+  end
+
+  it "link one can pass arguments" do
+
+    expect(@book.adapter(book_shelf: :other_desc))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            book_shelf: {
+              id: @book.book_shelf.id,
+              desc: @book.book_shelf.desc,
+              other_desc: @book.book_shelf.adapter_wrapper.other_desc,
+            }
+          )
+
+  end
+
+  it "link can be nested" do
+
+    @book_shelf = @book.book_shelf
+    @library = @book_shelf.library
+
+    expect(@book.adapter(book_shelf: [:other_desc, library: :welcome]))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            book_shelf: {
+              id: @book_shelf.id,
+              desc: @book_shelf.desc,
+              other_desc: @book_shelf.adapter_wrapper.other_desc,
+              library: {
+                id: @library.id,
+                size: @library.size,
+                welcome: @library.adapter_wrapper.welcome,
+              },
+            }
+          )
+  end
+
+  it "link many should call all linked targets's adapter method" do
+
+    @categories = @book.categories
+    expect(@book.adapter(:categories))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            categories: [
+              {
+                id: @categories[0].id,
+                cat: @categories[0].cat,
+              },
+              {
+                id: @categories[1].id,
+                cat: @categories[1].cat,
+              },
+            ]
+          )
+
+  end
+
+  it "link many can pass arguments" do
+
+    @categories = @book.categories
+    expect(@book.adapter(categories: :summary))
+      .to eq(
+            id: @book.id,
+            title: @book.title,
+            categories: [
+              {
+                id: @categories[0].id,
+                cat: @categories[0].cat,
+                summary: @categories[0].summary,
+              },
+              {
+                id: @categories[1].id,
+                cat: @categories[1].cat,
+                summary: @categories[1].summary,
+              },
+            ]
+          )
+
+  end
+
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 0000000..cb39e56
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,108 @@
+# This file was generated by the `rspec --init` command. Conventionally, all
+# specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
+# The generated `.rspec` file contains `--require spec_helper` which will cause
+# this file to always be loaded, without a need to explicitly require it in any
+# files.
+#
+# Given that it is always loaded, you are encouraged to keep this file as
+# light-weight as possible. Requiring heavyweight dependencies from this file
+# will add to the boot time of your test suite on EVERY test run, even for an
+# individual file that may not need all of that loaded. Instead, consider making
+# a separate helper file that requires the additional dependencies and performs
+# the additional setup, and require it from the spec files that actually need
+# it.
+#
+# See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
+
+require 'simplecov'
+SimpleCov.start
+SimpleCov.minimum_coverage 100
+
+RSpec.configure do |config|
+  # rspec-expectations config goes here. You can use an alternate
+  # assertion/expectation library such as wrong or the stdlib/minitest
+  # assertions if you prefer.
+  config.expect_with :rspec do |expectations|
+    # This option will default to `true` in RSpec 4. It makes the `description`
+    # and `failure_message` of custom matchers include text for helper methods
+    # defined using `chain`, e.g.:
+    #     be_bigger_than(2).and_smaller_than(4).description
+    #     # => "be bigger than 2 and smaller than 4"
+    # ...rather than:
+    #     # => "be bigger than 2"
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  # rspec-mocks config goes here. You can use an alternate test double
+  # library (such as bogus or mocha) by changing the `mock_with` option here.
+  config.mock_with :rspec do |mocks|
+    # Prevents you from mocking or stubbing a method that does not exist on
+    # a real object. This is generally recommended, and will default to
+    # `true` in RSpec 4.
+    mocks.verify_partial_doubles = true
+  end
+
+  # This option will default to `:apply_to_host_groups` in RSpec 4 (and will
+  # have no way to turn it off -- the option exists only for backwards
+  # compatibility in RSpec 3). It causes shared context metadata to be
+  # inherited by the metadata hash of host groups and examples, rather than
+  # triggering implicit auto-inclusion in groups with matching metadata.
+  config.shared_context_metadata_behavior = :apply_to_host_groups
+
+# The settings below are suggested to provide a good initial experience
+# with RSpec, but feel free to customize to your heart's content.
+=begin
+  # This allows you to limit a spec run to individual examples or groups
+  # you care about by tagging them with `:focus` metadata. When nothing
+  # is tagged with `:focus`, all examples get run. RSpec also provides
+  # aliases for `it`, `describe`, and `context` that include `:focus`
+  # metadata: `fit`, `fdescribe` and `fcontext`, respectively.
+  config.filter_run_when_matching :focus
+
+  # Allows RSpec to persist some state between runs in order to support
+  # the `--only-failures` and `--next-failure` CLI options. We recommend
+  # you configure your source control system to ignore this file.
+  config.example_status_persistence_file_path = "spec/examples.txt"
+
+  # Limits the available syntax to the non-monkey patched syntax that is
+  # recommended. For more details, see:
+  #   - http://rspec.info/blog/2012/06/rspecs-new-expectation-syntax/
+  #   - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
+  #   - http://rspec.info/blog/2014/05/notable-changes-in-rspec-3/#zero-monkey-patching-mode
+  config.disable_monkey_patching!
+
+  # This setting enables warnings. It's recommended, but in some cases may
+  # be too noisy due to issues in dependencies.
+  config.warnings = true
+
+  # Many RSpec users commonly either run the entire suite or an individual
+  # file, and it's useful to allow more verbose output when running an
+  # individual spec file.
+  if config.files_to_run.one?
+    # Use the documentation formatter for detailed output,
+    # unless a formatter has already been configured
+    # (e.g. via a command-line flag).
+    config.default_formatter = "doc"
+  end
+
+  # Print the 10 slowest examples and example groups at the
+  # end of the spec run, to help surface which specs are running
+  # particularly slow.
+  config.profile_examples = 10
+
+  # Run specs in random order to surface order dependencies. If you find an
+  # order dependency and want to debug it, you can fix the order by providing
+  # the seed, which is printed after each run.
+  #     --seed 1234
+  config.order = :random
+
+  # Seed global randomization in this process using the `--seed` CLI option.
+  # Setting this allows you to use `--seed` to deterministically reproduce
+  # test failures related to randomization by passing the same `--seed` value
+  # as the one that triggered the failure.
+  Kernel.srand config.seed
+=end
+end
+
+require 'coveralls'
+Coveralls.wear!
\ No newline at end of file
diff --git a/update.sh b/update.sh
index 5b7cafd..3de9686 100644
--- a/update.sh
+++ b/update.sh
@@ -1,4 +1,4 @@
 git add .
-git commit -m 'update'
 git status
+git commit -m 'update'
 git push origin dev
\ No newline at end of file