Feature: around hooks Around hooks receive the example as a block argument, extended to behave like a proc. This lets you define code that should be executed before and after the example. Of course, you can do the same thing with before and after hooks, and it's often cleaner to do so. Where around hooks shine is when you want to run an example in a block. For example, if your database library offers a transaction method that receives a block, you can use an around hook as described in the first scenario: WARNING: around hooks do not share state with the example the way before and after hooks do. This means that you can not share instance variables between around hooks and examples. Also, mock frameworks are set up and torn down within the context of running the example, so you can not interact with them directly in around hooks. Scenario: use the example as a proc within the block passed to around() Given a file named "example_spec.rb" with: """ruby class Database def self.transaction puts "open transaction" yield puts "close transaction" end end describe "around filter" do around(:each) do |example| Database.transaction(&example) end it "gets run in order" do puts "run the example" end end """ When I run `rspec example_spec.rb` Then the output should contain: """ open transaction run the example close transaction """ Scenario: invoke the example using run() Given a file named "example_spec.rb" with: """ruby describe "around hook" do around(:each) do |example| puts "around each before" example.run puts "around each after" end it "gets run in order" do puts "in the example" end end """ When I run `rspec example_spec.rb` Then the output should contain: """ around each before in the example around each after """ Scenario: access the example metadata Given a file named "example_spec.rb" with: """ruby describe "something" do around(:each) do |example| puts example.metadata[:foo] example.run end it "does something", :foo => "this should show up in the output" do end end """ When I run `rspec example_spec.rb` Then the output should contain "this should show up in the output" Scenario: define a global around hook Given a file named "example_spec.rb" with: """ruby RSpec.configure do |c| c.around(:each) do |example| puts "around each before" example.run puts "around each after" end end describe "around filter" do it "gets run in order" do puts "in the example" end end """ When I run `rspec example_spec.rb` Then the output should contain: """ around each before in the example around each after """ Scenario: before/after(:each) hooks are wrapped by the around hook Given a file named "example_spec.rb" with: """ruby describe "around filter" do around(:each) do |example| puts "around each before" example.run puts "around each after" end before(:each) do puts "before each" end after(:each) do puts "after each" end it "gets run in order" do puts "in the example" end end """ When I run `rspec example_spec.rb` Then the output should contain: """ around each before before each in the example after each around each after """ Scenario: before/after(:all) hooks are NOT wrapped by the around hook Given a file named "example_spec.rb" with: """ruby describe "around filter" do around(:each) do |example| puts "around each before" example.run puts "around each after" end before(:all) do puts "before all" end after(:all) do puts "after all" end it "gets run in order" do puts "in the example" end end """ When I run `rspec --format progress example_spec.rb` Then the output should contain: """ before all around each before in the example around each after .after all """ Scenario: examples run by an around block are run in the configured context Given a file named "example_spec.rb" with: """ruby module IncludedInConfigureBlock def included_in_configure_block; true; end end RSpec.configure do |c| c.include IncludedInConfigureBlock end describe "around filter" do around(:each) do |example| example.run end it "runs the example in the correct context" do included_in_configure_block.should be_truthy end end """ When I run `rspec example_spec.rb` Then the output should contain "1 example, 0 failure" Scenario: implicitly pending examples are detected as Not yet implemented Given a file named "example_spec.rb" with: """ruby describe "implicit pending example" do around(:each) do |example| example.run end it "should be detected as Not yet implemented" end """ When I run `rspec example_spec.rb` Then the output should contain "1 example, 0 failures, 1 pending" And the output should contain: """ Pending: implicit pending example should be detected as Not yet implemented # Not yet implemented """ Scenario: explicitly pending examples are detected as pending Given a file named "example_spec.rb" with: """ruby describe "explicit pending example" do around(:each) do |example| example.run end it "should be detected as pending" do pending end end """ When I run `rspec example_spec.rb` Then the output should contain "1 example, 0 failures, 1 pending" And the output should contain: """ explicit pending example should be detected as pending # No reason given """ Scenario: multiple around hooks in the same scope Given a file named "example_spec.rb" with: """ruby describe "if there are multiple around hooks in the same scope" do around(:each) do |example| puts "first around hook before" example.run puts "first around hook after" end around(:each) do |example| puts "second around hook before" example.run puts "second around hook after" end it "they should all be run" do puts "in the example" 1.should eq(1) end end """ When I run `rspec example_spec.rb` Then the output should contain "1 example, 0 failure" And the output should contain: """ first around hook before second around hook before in the example second around hook after first around hook after """ Scenario: around hooks in multiple scopes Given a file named "example_spec.rb" with: """ruby describe "if there are around hooks in an outer scope" do around(:each) do |example| puts "first outermost around hook before" example.run puts "first outermost around hook after" end around(:each) do |example| puts "second outermost around hook before" example.run puts "second outermost around hook after" end describe "outer scope" do around(:each) do |example| puts "first outer around hook before" example.run puts "first outer around hook after" end around(:each) do |example| puts "second outer around hook before" example.run puts "second outer around hook after" end describe "inner scope" do around(:each) do |example| puts "first inner around hook before" example.run puts "first inner around hook after" end around(:each) do |example| puts "second inner around hook before" example.run puts "second inner around hook after" end it "they should all be run" do puts "in the example" end end end end """ When I run `rspec example_spec.rb` Then the output should contain "1 example, 0 failure" And the output should contain: """ first outermost around hook before second outermost around hook before first outer around hook before second outer around hook before first inner around hook before second inner around hook before in the example second inner around hook after first inner around hook after second outer around hook after first outer around hook after second outermost around hook after first outermost around hook after """