What Is Rspec?

A beginner's level introduction: what is RSpec and what makes it different from (or better than) traditional unit testing frameworks. If you've heard of RSpec but you have no idea what it is, this talk is for you.

Transcript

1. WHAT THE HELL IS RSPEC
2. WHAT THE HELL IS RSPEC
3. They call it BDD
4. They call it BEHAVIOR
5. They call it DRIVEN
6. They call it DEVELOPMENT
7. They call it BDD
9. CARES? WHO
10. TESTING Rspec is a framework
11. WHAT THE HELL IS TESTING
12. class User def self.authenticate(password) password == "win" end end lib/user.rb
13. class User def self.authenticate(password) password == "win" end end lib/user.rb
14. class User def self.authenticate(password) password == "win" end end lib/user.rb
15. class User def self.authenticate(password) password == "win" end end lib/user.rb
16. test/test_user.rb class TestUser def self.test_authentication User.authenticate("win") == true end end
17. test/test_user.rb class TestUser def test_authentication User.authenticate("win") == true end end
18. test/test_user.rb class TestUser def test_authentication User.authenticate("win") == true end end
19. test/test_user.rb class TestUser def test_authentication User.authenticate("win") == true end end
20. spec/user_spec.rb
21. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate(“win") ).to eq(true) end end
22. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate(“win") ).to eq(true) end end
23. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate(“win") ).to eq(true) end end
24. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate("win") ).to eq(true) end end
25. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate("win") ).to eq(true) end end
26. test/test_user.rb class TestUser def test_authentication User.authenticate("win") == true end end
27. RECAP! it describe expect eq
28. spec/user_spec.rb describe User do it "authenticates the correct password" do expect( User.authenticate("win") ).to eq(true) end end
29. spec/user_spec.rb ! ).to eq(true) end ! it "rejects an incorrect password" do expect( User.authenticate("lose") ).to eq(false) end end
30. spec/user_spec.rb ! ).to eq(true) end ! it "rejects an incorrect password" do expect( User.authenticate("lose") ).to eq(false) end end
31. spec/user_spec.rb ! ).to eq(true) end ! it "rejects an incorrect password" do expect( described_class.authenticate("lose") ).to eq(false) end end
32. expect( described_class.authenticate("lose") ).to eq(false) end ! ! spec/user_spec.rb it "is not an administrator by default" do expect( User.new.admin? ).to eq(false) end end
33. expect( described_class.authenticate("lose") ).to eq(false) end ! ! spec/user_spec.rb it "is not an administrator by default" do expect( User.new.admin? ).to eq(false) end end
34. expect( described_class.authenticate("lose") ).to eq(false) end ! ! spec/user_spec.rb it "is not an administrator by default" do expect( subject.admin? ).to eq(false) end end
35. describe User do context "when representing an admin" do it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) end it "lets the user delete posts" do spec/user_spec.rb
36. describe User do context "when representing an admin" do it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) end it "lets the user delete posts" do spec/user_spec.rb
37. describe User do context "when representing an admin" do it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) end it "lets the user delete posts" do spec/user_spec.rb
38. describe User do context "when representing an admin" do subject do User.new(admin: true) end ! it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) spec/user_spec.rb
39. describe User do context "when representing an admin" do subject do User.new(admin: true) end ! it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) spec/user_spec.rb
40. describe User do context "when representing an admin" do subject do described_class.new(admin: true) end ! it "flags the user as an admin" do expect( User.new(admin: true).admin? ).to eq(true) spec/user_spec.rb
41. describe User do context "when representing an admin" do subject do described_class.new(admin: true) end ! it "flags the user as an admin" do expect( subject.admin? ).to eq(true) spec/user_spec.rb
42. RECAP! described_class subject context
43. SO THAT’S RSPEC
44. SO THAT’S RSPEC BASICALLY
45. WHAT ELSE?
46. rspec/rspec
47. rspec/rspec-core
48. rspec/rspec-rails
49. rspec/rspec-expectations
51. rspec/rspec-mocks
52. THANK YOU @joncanady