testing merb
TRANSCRIPT
![Page 1: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/1.jpg)
Testing Merb
The Right Way
![Page 2: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/2.jpg)
Why Test?
![Page 3: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/3.jpg)
TDD
![Page 4: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/4.jpg)
TDD and Regressions
![Page 5: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/5.jpg)
TDD and Regressions
I am not saying TDD is bad, but this talk doesn’t focus on mock-driven TDD.
![Page 6: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/6.jpg)
Resiliant Against Refactoring
![Page 7: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/7.jpg)
class Awesome def hello puts "~ Hello ~" endend
describe Awesome do it "prints hello" do awesome = Awesome.new awesome.should_receive(:puts) awesome.hello endend
![Page 8: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/8.jpg)
class Awesome def hello awesome_print "~ Hello ~" end def awesome_print(str) print "#{str}\n" endend
describe Awesome do it "prints hello" do awesome = Awesome.new awesome.should_receive(:puts) awesome.hello endend
![Page 9: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/9.jpg)
class Awesome def hello awesome_print "~ Hello ~" end def awesome_print(str) print "#{str}\n" endend
describe Awesome do it "prints hello" do awesome = Awesome.new awesome.should_receive(:puts) awesome.hello endend
FAIL
![Page 10: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/10.jpg)
class Awesome def hello awesome_print "~ Hello ~" end def awesome_print(str) print "#{str}\n" endend
describe Awesome do it "prints hello" do capture { Awesome.new.hello }. should =~ /Hello/ endend
![Page 11: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/11.jpg)
How to Test Three Rules
![Page 12: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/12.jpg)
Broken Interface means failing tests
![Page 13: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/13.jpg)
Working Interface means passing tests
![Page 14: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/14.jpg)
Write tests about what you care about
![Page 15: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/15.jpg)
http://example.com/foo
Controller
Filters
Views
Helpers
What Happens in Your App
![Page 16: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/16.jpg)
Your App
http://example.com/foo
What You Care About
![Page 17: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/17.jpg)
http://example.com/foo
Controller
4 Filters
Views
Helpers
H Partials
Refactoring
![Page 18: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/18.jpg)
Iteration 1
![Page 19: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/19.jpg)
class Foo < Application def awesome awesome_string end def awesome_string "Awesome" endend
Merb::Router.prepare do match("/foo/awesome"). to(:controller => Foo, :action => :awesome). name(:awesome)end
![Page 20: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/20.jpg)
dispatch_to(Foo, :awesome) do |cont| cont.should_receive(:awesome_string)end
![Page 21: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/21.jpg)
dispatch_to(Foo, :awesome) do |cont| cont.should_receive(:awesome_string)end
![Page 22: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/22.jpg)
Iteration 2
![Page 23: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/23.jpg)
class Bar < Application def coolness render end end
Merb::Router.prepare do match("/foo/awesome"). to(:controller => Bar, :action => :coolness). name(:awesome)end
![Page 24: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/24.jpg)
dispatch_to(Foo, :awesome) do |cont| cont.should_receive(:awesome_string)end
![Page 25: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/25.jpg)
dispatch_to(Foo, :awesome) do |cont| cont.should_receive(:awesome_string)end FAIL
![Page 26: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/26.jpg)
request("/foo/awesome").body. should =~ /Awesome/
![Page 27: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/27.jpg)
request(url(:awesome)).body. should =~ /Awesome/
![Page 28: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/28.jpg)
Broken Interface means failing tests
![Page 29: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/29.jpg)
Working Interface means passing tests
![Page 30: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/30.jpg)
Write tests about what you care about
![Page 31: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/31.jpg)
“It’s Too Hard”
![Page 32: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/32.jpg)
Let’s Make it Easy
![Page 33: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/33.jpg)
request(url(:speakers))
request(resource(@speaker))
request("/foo/speakers")
![Page 34: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/34.jpg)
request(url(:speakers))
request(resource(@speaker))
request("/foo/speakers")
one method
![Page 35: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/35.jpg)
Sessions are automatically sticky in a spec
![Page 36: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/36.jpg)
it "should let you in" do request("/login", :method => :post, :params => {:username => "user", :password => "pass"}) request("/home").should be_successfulend
![Page 37: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/37.jpg)
it "should let you in" do request("/login", :method => :post, :params => {:username => "user", :password => "pass"}) request("/home").should be_successfulend
login
![Page 38: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/38.jpg)
it "should let you in" do request("/login", :method => :post, :params => {:username => "user", :password => "pass"}) request("/home").should be_successfulend
you’re logged in
![Page 39: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/39.jpg)
describe "/login", :given => "successful login" do it "should let you in" do request("/home").should be_successful endend
simpler
![Page 40: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/40.jpg)
describe "/login", :given => "successful login" do it "should let you in" do request("/home").should be_successful endend
simpler
![Page 41: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/41.jpg)
Request
Rack
body headersstatus
![Page 42: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/42.jpg)
request() helper
Rack
body headersstatus
![Page 43: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/43.jpg)
request("/foo").body.should == "hello"
request("/foo").should have_xpath("//h1")
request("/foo").should( have_selector("h1:contains(text)"))
![Page 44: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/44.jpg)
request("/foo").body.should == "hello"
request("/foo").should have_xpath("//h1")
request("/foo").should( have_selector("h1:contains(text)"))
1.0 final
![Page 45: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/45.jpg)
request("/foo").should be_client_error
request("/foo").should( have_content_type(:json))
![Page 46: Testing Merb](https://reader034.vdocument.in/reader034/viewer/2022052505/55592fc2d8b42a543d8b48a5/html5/thumbnails/46.jpg)
Thank you.