install rspec

Author: cameronjacoby

.rspec

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+--color
+--require spec_helper

spec/controllers/products_controller_spec.rb

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+require "rails_helper"
+
+RSpec.describe ProductsController, type: :controller do
+
+  describe "#index" do
+    before do
+      @all_products = Product.all
+      get :index
+    end
+
+    it "should assign @products" do
+      expect(assigns(:products)).to eq(@all_products)
+    end
+
+    it "should render the :index view" do
+      expect(response).to render_template(:index)
+    end
+  end
+
+  describe "#new" do
+    before do
+      get :new
+    end
+
+    it "should assign @product" do
+      expect(assigns(:product)).to be_instance_of(Product)
+    end
+
+    it "should render the :new view" do
+      expect(response).to render_template(:new)
+    end
+  end
+
+  describe "#create" do
+    context "success" do
+      before do
+        @products_count = Product.count
+        post :create, product: {  }
+      end
+
+      it "should add new product to the database" do
+        expect(Product.count).to eq(@products_count + 1)
+      end
+
+      it "should redirect_to 'product_path'" do
+        expect(response.status).to be(302)
+        expect(response.location).to match(/\/products\/\d+/)
+      end
+    end
+
+    context "failed validations" do
+      before do
+        # create blank product (fails validations)
+        post :create, product: {  }
+      end
+
+      it "should display an error message" do
+        expect(flash[:error]).to be_present
+      end
+
+      it "should redirect to 'new_product_path'" do
+        expect(response.status).to be(302)
+        expect(response).to redirect_to(new_product_path)
+      end
+    end
+  end
+
+  describe "#show" do
+    before do
+      @product = FactoryGirl.create(:product)
+      get :show, id: @product.id
+    end
+
+    it "should assign @product" do
+      expect(assigns(:product)).to eq(@product)
+    end
+
+    it "should render the :show view" do
+      expect(response).to render_template(:show)
+    end
+  end
+
+  describe "#edit" do
+    before do
+      @product = FactoryGirl.create(:product)
+      get :edit, id: @product.id
+    end
+
+    it "should assign @product" do
+      expect(assigns(:product)).to eq(@product)
+    end
+
+    it "should render the :edit view" do
+      expect(response).to render_template(:edit)
+    end
+  end
+
+  describe "#update" do
+    before do
+      @product = FactoryGirl.create(:product)
+    end
+
+    context "success" do
+      before do
+        @new_name =
+        @new_description =
+        @new_category =
+        put :update, id: @product.id, product: {  }
+        
+        # reload @product to get changes from :update
+        @product.reload
+      end
+
+      it "should update product in the database" do
+        expect(@product.name).to eq(@new_name)
+        expect(@product.description).to eq(@new_description)
+      end
+
+      it "should redirect_to 'product_path'" do
+        expect(response.status).to be(302)
+        expect(response).to redirect_to(product_path(@product))
+      end
+    end
+
+    context "failed validations" do
+      before do
+        # update with blank product params (fails validations)
+        put :update, id: @product.id, product: {  }
+      end
+
+      it "should display an error message" do
+        expect(flash[:error]).to be_present
+      end
+
+      it "should redirect_to 'edit_product_path'" do
+        expect(response).to redirect_to(edit_product_path)
+      end
+    end
+  end
+
+  describe "#destroy" do
+    before do
+      product = FactoryGirl.create(:product)
+      @all_products = Product.count
+      delete :destroy, id: product.id
+    end
+
+    it "should remove product from the database" do
+      expect(Product.count).to eq(@all_products - 1)
+    end
+
+    it "should redirect_to 'root_path'" do
+      expect(response.status).to be(302)
+      expect(response).to redirect_to(root_path)
+    end
+  end
+end

spec/rails_helper.rb

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+# This file is copied to spec/ when you run 'rails generate rspec:install'
+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 'spec_helper'
+require 'rspec/rails'
+# Add additional requires below this line. Rails is not loaded until this point!
+
+# 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 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 = true
+
+  # 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!
+end

spec/spec_helper.rb

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+require "simplecov"
+SimpleCov.start
+
+# 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.
+#
+# The `.rspec` file also contains a few flags that are not defaults but that
+# users commonly want.
+#
+# 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
+
+# The settings below are suggested to provide a good initial experience
+# with RSpec, but feel free to customize to your heart's content.
+=begin
+  # These two settings work together to allow 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.
+  config.filter_run :focus
+  config.run_all_when_everything_filtered = true
+
+  # 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://myronmars.to/n/dev-blog/2012/06/rspecs-new-expectation-syntax
+  #   - http://www.teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
+  #   - http://myronmars.to/n/dev-blog/2014/05/notable-changes-in-rspec-3#new__config_option_to_disable_rspeccore_monkey_patching
+  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