Presentation I showed in LinuxTag 2012 about writing

1. How to Test Enterprise Java Applications
Alex Soto Bueno
Computer Engineer

2. World Is Changing
The World Is Changing So Fast
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Client Protocol Server Persistence
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3. World Is Changing
The World Is Changing So Fast
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Client Protocol Server Persistence
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4. World Is Changing
The World Is Changing So Fast
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Client Protocol Server Persistence
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5. World Is Changing
The World Is Changing So Fast
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{app/json}
Client Protocol Server Persistence
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6. World Is Changing
The World Is Changing So Fast
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{app/json}
{app/xml}
Client Protocol Server Persistence
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7. World Is Changing
The World Is Changing So Fast
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{app/json}
{app/xml}
Client Protocol Server Persistence
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8. World Is Changing
The World Is Changing So Fast
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{app/json}
{app/xml}
Client Protocol Server Persistence
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9. World Is Changing
Testing Frameworks are
Changing Too
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10. Bio
Alex Soto Bueno
Computer Engineer
Diagnostic Grifols
Compiler Tutor
Active Blogger & Speaker
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11. Overview
Unit Tests - 80 % of code
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12. Overview
Unit Tests - 80 % of code
Integration Tests - 15 % of code
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13. Overview
Unit Tests - 80 % of code
Integration Tests - 15 % of code
Acceptance Tests - 5 % of code
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14. Unit Tests
Tests small pieces of production code
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15. Unit Tests
Tests small pieces of production code
Confidence to Change
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16. Unit Tests
Tests small pieces of production code
Confidence to Change
Quick Feedback
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17. Unit Tests
Tests small pieces of production code
Confidence to Change
Quick Feedback
Documentation
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18. Unit Tests
FIRST Important Rules
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19. Unit Tests
Fast
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20. Unit Tests
Fast
Resist Temptation
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21. Unit Tests
Isolation
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22. Unit Tests
Repeatable
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23. Unit Tests
Self-Validating
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24. Unit Tests
Timely
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25. Unit Tests
Different Layers - Different Frameworks
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26. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
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27. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
code
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28. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
code
fixtures
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29. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
code
fixtures
configuration 14

30. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
code
fixtures
JSTestDriver Server
configuration 14

31. Client Side
JS TestDriver xUnit approach to Javascript
Apache License 2.0
code
fixtures
JSTestDriver Server browsers
configuration 14

32. Client Side
Sinon.js mocking library for Javascript
BSD License
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33. Client Side
Sinon.js mocking library for Javascript
BSD License
sinon.stub(jQuery,
“ajax”).yieldsTo(“success”,’{“name”:”Alex”}’);
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34. Demo
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35. Server Side
Unit Test Framework for Java
Common Public License
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36. Server Side
Hamcrest is about expressiveness
New BSD License
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37. Server Side
Hamcrest is about expressiveness
New BSD License
String officerRank = getRankByDate(officer);
List<String> ranks = [(“Captain”, “Commander”)];
assertEquals(true, ranks.contains(officerRank));
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38. Server Side
Hamcrest is about expressiveness
New BSD License
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39. Server Side
Hamcrest is about expressiveness
New BSD License
String officerRank = getRankByDate(officer);
assertThat(officerRank,
isOneOf(“Captain”,”Commander”));
assertThat(age, is(10));
assertThat(name, is(not(“Alex”));
assertThat(calculated, isNotANumber());
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40. Server Side
Simple & Clean Mock API
MIT License
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41. Server Side
Simple & Clean Mock API
MIT License
@Mock private OfficerDao officerDao;
...
MockitoAnnotations.initMocks(this);
...
when(officerDao.findOfficerByAge(22))
.thenReturn(newOfficer);
when(officerDao.findOfficerByAge(greaterThan(50)))
.thenThrow(new OldOfficerException());
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42. Persistence Side
RDBMS are Homogeneous
NoSQL are Heterogeneous
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43. Persistence Side (SQL)
Avoid HIT Database
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44. Persistence Side (SQL)
Avoid HIT Database
In-Memory
Databases
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45. Persistence Side (SQL)
Avoid HIT Database
In-Memory
Databases
Apache License 2.0 BSD License *
MPL 1.1 & EPL 1.0
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46. Persistence Side (SQL)
Isolation problem with Database
Insert-Delete Problem
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47. Persistence Side (SQL)
Isolation problem with Database
Insert-Delete Problem
GNU LGPL 2.1
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48. Persistence Side (SQL)
Isolation problem with Database
Insert-Delete Problem
GNU LGPL 2.1
Define base data set
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49. Persistence Side (SQL)
Isolation problem with Database
Insert-Delete Problem
GNU LGPL 2.1
Define base data set
@Before
DatabaseOperation.CLEAN_INSERT.execute(connection,
dataSet);
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50. Persistence Side (NoSQL)
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51. Persistence Side (NoSQL)
GNU AGPL v3.0
No Embedded (in-memory) Mode
(SERVER - 1153)
No Test Isolation Framework
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52. Persistence Side (NoSQL)
GPL v3 & AGPL v3
Embedded (in-memory) Mode
Partially supported
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53. Persistence Side (NoSQL)
DBUnit for NOSQL
Apache License 2.0
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54. Persistence Side (NoSQL)
DBUnit for NOSQL
MongoDb
Apache License 2.0
Neo4J
CouchDb
Cassandra
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55. Demo
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56. Integration Tests
Test Collaboration Between Components
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57. Integration Tests
Test Collaboration Between Components
Database
IO system
Special Environment Configuration
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58. Integration Tests
Common Problems in JEE 6
CDI - @EJB, @Inject, @PersistenceContext
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59. Integration Tests
Common Problems in JEE 6
CDI - @EJB, @Inject, @PersistenceContext
Container Lifecyle Management
Create Deployment Archive
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60. Integration Tests
Common Problems in JEE 6
k
oc
CDI - @EJB, @Inject, @PersistenceContext
M
T
Container Lifecyle Management
NO
Create Deployment Archive
Do
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61. Integration Tests
Arquillian brings tests to runtime
Manage Lifecycle of Container Apache License 2.0
Create/Deploy MicroDeployments
Enriching Test Classes
Run Tests Inside/Against Container
IDE Friendly
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62. Integration Tests
Arquillian brings tests to runtime
ks
Manage Lifecycle of Container
c
Apache License 2.0
o
M Classes
Create/Deploy MicroDeployments
o r e
Enriching Test
o M
N
Run Tests Inside/Against Container
IDE Friendly
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63. Integration tests
31

64. Integration tests
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65. Integration tests
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66. Integration tests
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67. Integration tests
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68. Integration tests
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69. Demo
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70. Acceptance Tests
Test Customer Requirements
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71. Acceptance Tests
User Story
everyday language sentence
adds business values
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72. Acceptance Tests
User Story
everyday language sentence
adds business values
As administrator, I want to add new books
to a collection, so users can borrow them
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73. Acceptance Tests
Acceptance Criteria
story completeness
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74. Acceptance Tests
Acceptance Criteria
story completeness
Administrator can add new books.
Administrator can categorise books.
User can borrow books added by administrator.
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75. Acceptance Tests
Concrete Examples
1. Create Lord of the Rings
Book.
2. Assign J.R.R Tolkien as
author.
3. Set Book Description.
4. Add Book to System.
5. Check that Book is shown
in screen.
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76. Acceptance Tests
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77. Acceptance Tests
JEE UI is Web
How to access to web elements
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78. Acceptance Tests
JEE UI is Web
How to access to web elements
AT categorised by user stories
How to organize user stories and specs
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79. Acceptance Tests
Thucydides
Apache License 2.0
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80. Acceptance Tests
Thucydides
Selenium 2 Extension
Apache License 2.0
38

81. Acceptance Tests
Thucydides
Selenium 2 Extension
Apache License 2.0
Organise tests and stories
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82. Acceptance Tests
Thucydides
Selenium 2 Extension
Apache License 2.0
Organise tests and stories
Record/Report test execution
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83. Acceptance Tests
Thucydides
Selenium 2 Extension
Apache License 2.0
Organise tests and stories
Record/Report test execution
Measure Functional Cover
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84. Acceptance Tests
Choose a user story
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85. Acceptance Tests
Choose a user story
Implement PageObject/s
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86. Acceptance Tests
Choose a user story
Implement PageObject/s
Implement Test Step Library
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87. Acceptance Tests
Choose a user story
Implement PageObject/s
Implement Test Step Library
Implement User Story following A.C
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88. Demo
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89. Continuous Integration
Different Kind of Tests Exist
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90. Continuous Integration
Different Kind of Tests Exist
Only Unit tests are run by developers
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91. Continuous Integration
Different Kind of Tests Exist
Only Unit tests are run by developers
Continuous Integration System
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92. Continuous Integration
Provides CI services
Build Jobs are Tasks
MIT License
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93. Continuous Integration
Build Pipeline Plugin
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94. Continuous Integration
Build Pipeline Plugin
Create chains of build jobs.
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95. Continuous Integration
Build Pipeline Plugin
Create chains of build jobs.
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96. Last Note
No Time No Tests
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97. Last Note
No Time No Tests
Fix an error during Production Time
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98. Last Note
No Time No Tests
Fix an error during Production Time
Continuous Delivery
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99. Thanks
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100. Questions
Questions ?
How many nights I prayed for this, to let my work begin First we take Manhattan, then we take Berlin - Leonard Cohen
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101. Questions
Questions ?
Alex Soto Bueno
asotobu@gmail.com
www.lordofthejars.com
@alexsotob
How many nights I prayed for this, to let my work begin First we take Manhattan, then we take Berlin - Leonard Cohen
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102. Credits
http://www.flickr.com/photos/55182004@N04/5518854399/sizes/o/in/photostream/
http://www.flickr.com/photos/wildlifewanderer/6133286089/sizes/o/in/photostream/
http://www.flickr.com/photos/luccawithcheese/3180399980/sizes/o/in/photostream/
http://www.flickr.com/photos/wildlifewanderer/6133286089/sizes/o/in/photostream/
http://www.flickr.com/photos/joachim_s_mueller/6913623388/sizes/o/in/photostream/
http://www.flickr.com/photos/dieselpower83/7078627097/sizes/o/in/pool-62802336@N00/
http://www.flickr.com/photos/soyignatius/2476388983/sizes/o/in/photostream/
http://www.flickr.com/photos/flatbushgardener/440319534/
http://www.flickr.com/photos/justinwkern/3597152639/
http://www.flickr.com/photos/tolgasoran/5154570906/
http://www.flickr.com/photos/pennuja/5363515039/
http://www.flickr.com/photos/350org/5069209808/sizes/o/in/photostream/
http://www.flickr.com/photos/lliurealbir/3484066523/sizes/o/in/photostream/
http://www.flickr.com/photos/windsordi/3467758700/sizes/o/in/photostream/
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103. How to Test Enterprise Java Applications
Alex Soto Bueno
Computer Engineer