Testing in iOS

Mobile Optimized 2013
http://mo.dev.by

Transcript

1. Victor Ilyukevich @yas375 Contracted iOS developer at Care Zone Inc.
2. Why do I need to spend time writing tests? it reduces bugs it helps to produce good code it proves your code is working as supposed to tests are documentation to your code it makes easy to maintain your code ...
3. UIAutomation
4. UIAutomation
5. UIAutomation var  target  =  UIATarget.localTarget(); var  appWindow  =  target.frontMostApp().mainWindow(); appWindow.tabBar().buttons()["Unit  Conversion"].tap();
6. Tuneup JS http://www.tuneupjs.org
7. Tuneup JS http://www.tuneupjs.org test("Login screen", function(target, app) { var window = app.mainWindow(); // tap the left button in the navigation bar window.navigationBars()[0].leftButton().tap(); // assert that the app has navigated into a sub-view controller assertEquals("Settings", window.navigationBars()[0].value()); });
8. mechanic.js https://github.com/jaykz52/mechanic //  all  UIAStaticText  elements  directly  descended  from  a   tabbar $('tabbar  >  text'); //  all  buttons  inside  the  window  named  'Main' $('window[name=Main]  button') //  the  text  field  with  a  value  of  'Search' $('textfield[value=Search]') //  all  buttons  plus  a  specific  element  by  name $('button,  #Continue')
9. Bwoken iOS UIAutomation Test Runner http://bendyworks.github.io/bwoken/
10. Bwoken adds easy commands to run tests from CLI
11. Bwoken adds easy commands to run tests from CLI $  rake
12. Bwoken adds easy commands to run tests from CLI $  rake $  rake  compile  &&  rake  test equals to:
13. Bwoken adds easy commands to run tests from CLI $  rake $  rake  compile  &&  rake  test $  SIMULATOR=true  rake
14. Bwoken adds easy commands to run tests from CLI $  rake $  rake  compile  &&  rake  test $  SIMULATOR=true  rake $  RUN=iphone/focused_test  rake
15. Bwoken adds easy commands to run tests from CLI
16. Bwoken adds easy commands to run tests from CLI allows you to run tests with CoffeeScript
17. Bwoken adds easy commands to run tests from CLI allows you to run tests with CoffeeScript fill = (container, liquid = "coffee") -> "Filling the #{container} with #{liquid}..."
18. Bwoken adds easy commands to run tests from CLI allows you to run tests with CoffeeScript fill = (container, liquid = "coffee") -> "Filling the #{container} with #{liquid}..." var fill; fill = function(container, liquid) { if (liquid == null) { liquid = "coffee"; } return "Filling the " + container + " with " + liquid + "..."; };
19. Bwoken adds easy commands to run tests from CLI allows you to run tests with CoffeeScript http://coffeescript.org
20. UIAutomation + Tuneup JS + Bwoken + CoffeeScript
21. UIAutomation + Tuneup JS + Bwoken + CoffeeScript #import  "../helpers/Caremobile.js"   Caremobile.resetAppState() SignInScreen.signIn('testuser',  'testpass')   test  'Caregiver  adds  a  beloved',  (target,  app)  -­‐>    name  =  'Kurt  Cobain'    BelovedsScreen.tapAddButton()    ProfileScreen.setFields({  'full  name':  name  })    ProfileScreen.tapSaveButton()    BelovedsScreen.assertBeloved({  regex:  new  RegExp(name,  "g")  })   test  'Caregiver  edits  a  beloved',  (target,  app)  -­‐>    ...
22. UIAutomation + Tuneup JS + Bwoken + CoffeeScript class  BelovedsScreenClass  extends  BaseListScreen      assertBeloved:  (args)  -­‐>        @assertCell  args      belovedsList:  -­‐>        Caremobile.window().tableViews()['List  of  loved  ones']      tapBelovedNamed:  (name)  -­‐>        @belovedsList().cells()[name].tap()     BelovedsScreen  =  new  BelovedsScreenClass
23. UIAutomation + Tuneup JS + Bwoken + CoffeeScript $  RUN=beloveds  rake
24. UIAutomation + Tuneup JS + Bwoken + CoffeeScript $  RUN=beloveds  rake
25. UIAutomation + Tuneup JS + Bwoken + CoffeeScript Passing custom params to the app. https://github.com/carezone/bwoken/commit/195f2f9
26. UIAutomation + Tuneup JS + Bwoken + CoffeeScript Passing custom params to the app. desc  "Run  tests" task  :run_tests  do    ENV['INSTRUMENTS']  =  "-­‐e  TEST_MODE  1"    Rake::Task[:default].invoke end Add a new task to your Rakefile: https://github.com/carezone/bwoken/commit/195f2f9
27. UIAutomation + Tuneup JS + Bwoken + CoffeeScript Passing custom params to the app. BOOL  IsTestMode()  {    return  (getenv("TEST_MODE")  !=  nil); } https://github.com/carezone/bwoken/commit/195f2f9
28. Unit testing
29. SetTestingKit.framework
30. SetTestingKit.framework @implementation  MyAppTests   -­‐  (void)setUp  {        [super  setUp];        //  Set-­‐up  code  here. }   -­‐  (void)tearDown  {        //  Tear-­‐down  code  here.        [super  tearDown]; }   -­‐  (void)testExample  {        STFail(@"Unit  tests  are  not  implemented  yet  in  MyAppTests"); }   @end
31. SetTestingKit.framework
32. SetTestingKit.framework
33. SetTestingKit.framework https://github.com/mysterioustrousers/MTDates
34. SetTestingKit.framework
35. SetTestingKit.framework
36. Kiwi https://github.com/allending/Kiwi
37. Why do I like Kiwi. expectations
38. Why do I like Kiwi. expectations [[subject  should]  beTrue]; [[subject  should]  equal:(id)anObject]; [[subject  should]  beLessThan:(id)aValue]; [[@"Hello,  world!"  should]  containString:@"world"]; [[subject  should]  beKindOfClass:(Class)aClass]; [[subject  should]  haveCountOf:(NSUInteger)aCount];   NSArray  *array  =  [NSArray  arrayWithObject:@"foo"]; [[array  should]  have:1]  item];   [[subject  should]  receive:(SEL)aSelector  andReturn:(id)aValue]; [[theBlock(^{  ...  })  should]  raise];
39. Why do I like Kiwi. expectations ‘describe’, ‘context’, ‘before each’, ‘before all, ‘after each’, ‘after all’ blocks
40. Why do I like Kiwi. expectations ‘describe’, ‘context’, ‘before each’, ‘before all, ‘after each’, ‘after all’ blocks mocks objects that imitate a class, or look like they conform a protocol
41. Why do I like Kiwi. expectations ‘describe’, ‘context’, ‘before each’, ‘before all, ‘after each’, ‘after all’ blocks mocks objects that imitate a class, or look like they conform a protocol stubs return canned responses on method calls
42. Why do I like Kiwi. id  mock  =  [Animal  mock]; [[mock  should]  beMemberOfClass:[Animal  class]];   [mock  stub:@selector(species)  andReturn:@"P.  tigris"]; [[mock.species  should]  equal:@"P.  tigris"]; [Cruiser  stub:@selector(classification)  andReturn:@"Not  a  moon"]; [[[Cruiser  classification]  should]  equal:@"Not  a  moon"];
43. Got it. Show me real code!
44. Got it. Show me real code! #import  <Kiwi/Kiwi.h> #import  "Matrix.h" SPEC_BEGIN(MatrixSpec)    describe(@"Matrix",  ^{        __block  Matrix  *matrix  =  nil;        context(@"initialized  with  size  of  3",  ^{            beforeEach(^{                matrix  =  [[Matrix  alloc]  initWithSize:3];            });            it(@"has  size  of  3",  ^{                [[theValue(matrix.size)  should]  equal:theValue(3)];            });            context(@"sets  value  3  to  row  2  column  1",  ^{                beforeEach(^{                    [matrix  setValue:@3  forRow:2  column:1];                }); ...            });        });    }); SPEC_END
45. Got it. Show me real code! describe(@"CalendarEvent",  ^{    __block  CalendarEvent  *event  =  nil;    beforeEach(^{        NSManagedObjectContext  *context  =  [NSManagedObjectContext                                                          makeMainQueueContext];        event  =  [CalendarEvent  insertIntoContext:context];    });        context(@"when  current  time  is  23:44",  ^{        it(@"starts  at  00:00",  ^{            [[NSDate  stubAndReturn:[NSDate  dateFromYear:2012                  month:1  day:23  hour:23  minute:44]]  date];            [event  setupDefaultDates];            [[event.startsAt  should]  equal:[NSDate  dateFromYear:2012                                  month:1  day:24  hour:0  minute:0]];        });    }); });
46. Alternatives
47. Cedar a bunch of matchers stubs and mocks describe and context blocks before each and after each blocks pending specs focused specs reporters https://github.com/pivotal/cedar
48. -­‐  (void)testAuthorizationHeaderWithInvalidUsernamePassword  {        [Expecta  setAsynchronousTestTimeout:5.0];                __block  NSHTTPURLResponse  *response  =  nil;        [self.client  getPath:@"/basic-­‐auth/username/password"                            parameters:nil                                  success:NULL                                  failure:^(AFHTTPRequestOperation  *operation,  NSError   *error)  {                response  =  operation.response;        }];                expect(response.statusCode).will.equal(401); } OCMock + Expecta
49. -­‐  (void)testAuthorizationHeaderWithInvalidUsernamePassword  {        [Expecta  setAsynchronousTestTimeout:5.0];                __block  NSHTTPURLResponse  *response  =  nil;        [self.client  getPath:@"/basic-­‐auth/username/password"                            parameters:nil                                  success:NULL                                  failure:^(AFHTTPRequestOperation  *operation,  NSError   *error)  {                response  =  operation.response;        }];                expect(response.statusCode).will.equal(401); } OCMock + Expecta https://github.com/AFNetworking/AFNetworking
50. Other alternatives OCMochito OCHamcrest GHUnit ... http://nshipster.com/unit-testing/
51. Build and run from CLI
52. Build and run from CLI xcodebuild
53. xcodebuild $  xcodebuild  -­‐workspace  MyApp.xcworkspace  \                          -­‐scheme  MyScheme  \                          -­‐sdk  iphonesimulator  \                          -­‐configuration  Release  \                          build
54. xcodebuild desc  "Run  unit  tests" task  :unittest  do    kill_simulator      cmd  =  "xcodebuild  -­‐workspace  #{WORKSPACE_NAME}.xcworkspace  \                                        -­‐scheme  #{SCHEME_NAME}  \                                        -­‐sdk  iphonesimulator  \                                        -­‐configuration  Release                                          RUN_UNIT_TEST_WITH_IOS_SIM=YES  \                                        build"    stdout  =  TestOutput.new(STDOUT)    stderr  =  TestOutput.new(STDERR)    status  =  Open4.spawn(cmd,                                              :stdout  =>  stdout,                                              :stderr  =>  stderr,                                              :status  =>  true)    exit  status.exitstatus end
55. xcodebuild
56. Build and run from CLI xcodebuild
57. Build and run from CLI xcodebuild xctool
58. xctool $  brew  install  xctool
59. xctool $  brew  install  xctool $  xctool  -­‐workspace  App.xcworkspace\                  -­‐scheme  App\                  test
60. xctool .xctool-args [    "-­‐workspace",  "App.xcworkspace",    "-­‐scheme",  "App" ]
61. xctool .xctool-args [    "-­‐workspace",  "App.xcworkspace",    "-­‐scheme",  "App" ] $  xctool  test
62. xctool
63. Continuous integration (CI)
64. Continuous integration (CI) Jenkins Travis CI http://jenkins-ci.org http://travis-ci.org
65. Travis CI Provides hosted CI service free for open source (public repo) paid for private repositories A hosted continuous integration service for the open source community
66. Travis CI A hosted continuous integration service for the open source community language:  objective-­‐c before_install:    -­‐  brew  update    -­‐  brew  install  xctool script:  xctool  test Setup for open source project Add .travis.yml file at root of your repository
67. Travis CI A hosted continuous integration service for the open source community Login at http://travis-ci.org and enable it Add .travis.yml file at root of your repository Setup for open source project
68. Travis CI A hosted continuous integration service for the open source community
69. Travis CI A hosted continuous integration service for the open source community Login at http://travis-ci.org and enable it Add .travis.yml file at root of your repository Setup for open source project Add nice status picture to your README
70. Travis CI A hosted continuous integration service for the open source community
71. Travis CI A hosted continuous integration service for the open source community
72. Travis CI A hosted continuous integration service for the open source community
73. Travis CI A hosted continuous integration service for the open source community
74. When to start writing tests?
75. When to start writing tests? NOW
76. Thanks! Victor Ilyukevich @yas375