add rspec test suites

.gitignore

@@ -32,3 +32,5 @@
 .env.*.local
 
 cita_sync.log
+
+/coverage

.rspec

@@ -0,0 +1,3 @@
+--require spec_helper
+--color
+-f progress

.travis.yml

@@ -39,3 +39,4 @@ install:
 script:
   - bundle exec rails db:migrate
   - bundle exec rails test
+  - bundle exec rails spec

Gemfile

@@ -71,6 +71,11 @@ gem 'ciri', '~> 0.0.2'
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
+
+  gem 'rspec-rails', '~> 3.7'
+  gem 'factory_bot_rails'
+  gem 'database_cleaner'
+  gem 'simplecov', require: false
 end
 
 group :development do

Gemfile.lock

@@ -99,13 +99,21 @@ GEM
       safe_yaml (~> 1.0.0)
     crass (1.0.4)
     daemons (1.2.6)
+    database_cleaner (1.7.0)
+    diff-lcs (1.3)
     digest-sha3 (1.1.0)
+    docile (1.3.1)
     dotenv (2.5.0)
     dotenv-rails (2.5.0)
       dotenv (= 2.5.0)
       railties (>= 3.2, < 6.0)
     erubi (1.7.1)
     execjs (2.7.0)
+    factory_bot (4.10.0)
+      activesupport (>= 3.0.0)
+    factory_bot_rails (4.10.0)
+      factory_bot (~> 4.10.0)
+      railties (>= 3.0.0)
     faraday (0.15.2)
       multipart-post (>= 1.2, < 3)
     ffi (1.9.25)
@@ -119,6 +127,7 @@ GEM
     jbuilder (2.7.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
+    json (2.1.0)
     jsonapi-renderer (0.2.0)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
@@ -204,6 +213,23 @@ GEM
     rb-fsevent (0.10.3)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
+    rspec-core (3.7.1)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.7.0)
+    rspec-rails (3.7.2)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      railties (>= 3.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.1)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     safe_yaml (1.0.4)
@@ -221,6 +247,11 @@ GEM
     selenium-webdriver (3.13.0)
       childprocess (~> 0.5)
       rubyzip (~> 1.2)
+    simplecov (0.16.1)
+      docile (~> 1.1)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.2)
     snappy (0.0.17)
     spring (2.0.2)
       activesupport (>= 4.2)
@@ -272,7 +303,9 @@ DEPENDENCIES
   ciri (~> 0.0.2)
   coffee-rails (~> 4.2)
   daemons (~> 1.2, >= 1.2.6)
+  database_cleaner
   dotenv-rails
+  factory_bot_rails
   faraday (~> 0.15.2)
   google-protobuf (~> 3.6)
   jbuilder (~> 2.5)
@@ -286,8 +319,10 @@ DEPENDENCIES
   rack-cors
   rails (~> 5.2.0)
   ransack (~> 1.8, >= 1.8.8)
+  rspec-rails (~> 3.7)
   sass-rails (~> 5.0)
   selenium-webdriver
+  simplecov
   spring
   spring-watcher-listen (~> 2.0.0)
   turbolinks (~> 5)

app/models/block.rb

@@ -12,6 +12,6 @@ class Block < ApplicationRecord
 
   # current block number
   def self.current_block_number
-    Block.order(block_number: :desc).first.block_number
+    Block.order(block_number: :desc).first&.block_number
   end
 end

spec/factories/blocks.rb

@@ -0,0 +1,23 @@
+FactoryBot.define do
+  factory :block do
+    cita_hash "0x9b76631fa409a4c69f0726d16b9656d54fcef3aa0400d95b5f8e4413aacfe965"
+    version 0
+    block_number 0
+    transaction_count 0
+    header({
+      "proof" => nil,
+      "number" => "0x0",
+        "gasUsed" => "0x0",
+        "prevHash" => "0x0000000000000000000000000000000000000000000000000000000000000000",
+        "proposer" => "0x0000000000000000000000000000000000000000",
+        "stateRoot" => "0xc9509aed05b800c7d9a27395b1f7cdde9428f56a72e9f07661c1f1731d7dda44",
+        "timestamp" => 1530164125967,
+        "receiptsRoot" => "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
+        "transactionsRoot" => "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
+    })
+
+    body({
+           "transactions" => []
+         })
+  end
+end

spec/models/block_spec.rb

@@ -0,0 +1,55 @@
+require 'rails_helper'
+
+RSpec.describe Block, type: :model do
+  context "validates" do
+    let(:block) { build :block }
+    let(:cita_hash) { "0x" + SecureRandom.hex(32) }
+    let(:new_cita_hash) { "0x" + SecureRandom.hex(32) }
+    let(:block_number) { 0 }
+    let(:new_block_number) { 1 }
+
+    it "should be valid" do
+      expect(block).to be_valid
+    end
+
+    it "cita_hash must be present" do
+      block.cita_hash = nil
+
+      expect(block).to be_invalid
+    end
+
+    it "cita_hash must be unique" do
+      block = create :block, cita_hash: cita_hash, block_number: block_number
+      valid_block = build :block, cita_hash: new_cita_hash, block_number: new_block_number
+      expect(valid_block).to be_valid
+      invalid_block = build :block, cita_hash: cita_hash, block_number: new_block_number
+      expect(invalid_block).to be_invalid
+    end
+
+    it "block_number must be present" do
+      block.block_number = nil
+
+      expect(block).to be_invalid
+    end
+
+    it "block_number must be unique" do
+      block = create :block, cita_hash: cita_hash, block_number: block_number
+      valid_block = build :block, cita_hash: new_cita_hash, block_number: new_block_number
+      expect(valid_block).to be_valid
+      invalid_block = build :block, cita_hash: new_cita_hash, block_number: block_number
+      expect(invalid_block).to be_invalid
+    end
+  end
+
+  context "current block number" do
+    it "no blocks should get nil" do
+      expect(Block.count).to be_zero
+      expect(Block.current_block_number).to be_nil
+    end
+
+    it "should get last block's number" do
+      block = create :block
+      expect(Block.current_block_number).to eq block.block_number
+    end
+  end
+end

spec/rails_helper.rb

@@ -0,0 +1,70 @@
+# This file is copied to spec/ when you run 'rails generate rspec:install'
+require 'spec_helper'
+ENV['RAILS_ENV'] ||= 'test'
+require File.expand_path('../../config/environment', __FILE__)
+# Prevent database truncation if the environment is production
+abort("The Rails environment is running in production mode!") if Rails.env.production?
+require 'rspec/rails'
+# Add additional requires below this line. Rails is not loaded until this point!
+require "database_cleaner"
+require 'simplecov'
+SimpleCov.start
+
+# Requires supporting ruby files with custom matchers and macros, etc, in
+# spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are
+# run as spec files by default. This means that files in spec/support that end
+# in _spec.rb will both be required and run as specs, causing the specs to be
+# run twice. It is recommended that you do not name files matching this glob to
+# end with _spec.rb. You can configure this pattern with the --pattern
+# option on the command line or in ~/.rspec, .rspec or `.rspec-local`.
+#
+# The following line is provided for convenience purposes. It has the downside
+# of increasing the boot-up time by auto-requiring all files in the support
+# directory. Alternatively, in the individual `*_spec.rb` files, manually
+# require only the support files necessary.
+#
+# Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f }
+
+# Checks for pending migrations and applies them before tests are run.
+# If you are not using ActiveRecord, you can remove this line.
+ActiveRecord::Migration.maintain_test_schema!
+
+RSpec.configure do |config|
+  # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
+  config.fixture_path = "#{::Rails.root}/spec/fixtures"
+
+  # If you're not using ActiveRecord, or you'd prefer not to run each of your
+  # examples within a transaction, remove the following line or assign false
+  # instead of true.
+  config.use_transactional_fixtures = false
+
+  # RSpec Rails can automatically mix in different behaviours to your tests
+  # based on their file location, for example enabling you to call `get` and
+  # `post` in specs under `spec/controllers`.
+  #
+  # You can disable this behaviour by removing the line below, and instead
+  # explicitly tag your specs with their type, e.g.:
+  #
+  #     RSpec.describe UsersController, :type => :controller do
+  #       # ...
+  #     end
+  #
+  # The different available types are documented in the features, such as in
+  # https://relishapp.com/rspec/rspec-rails/docs
+  config.infer_spec_type_from_file_location!
+
+  # Filter lines from Rails gems in backtraces.
+  config.filter_rails_from_backtrace!
+  # arbitrary gems may also be filtered via:
+  # config.filter_gems_from_backtrace("gem name")
+
+  config.before(:each) do
+    # Database cleaner
+    DatabaseCleaner.orm = :active_record
+    DatabaseCleaner.strategy = :truncation
+    DatabaseCleaner.clean
+    Rails.cache.clear
+  end
+
+  config.include FactoryBot::Syntax::Methods
+end

spec/spec_helper.rb

@@ -0,0 +1,96 @@
+# This file was generated by the `rails generate rspec:install` 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
+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!
+
+  # 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