Growing object-oriented software, guided by tests:
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Upper Saddle River, NJ
Addison Wesley
2010
|
| Series: | The Addison-Wesley signature series
|
| Subjects: | |
| Links: | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=020473991&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| Item Description: | Includes bibliographical references (p. 347-348) and index |
| Physical Description: | XXIII, 358 S. 24 cm |
| ISBN: | 9780321503626 0321503627 |
Staff View
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Record in the Search Index
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| adam_text | Titel: Growing object-oriented software, guided by tests
Autor: Freeman, Steve
Jahr: 2010
Contents
Foreword......................................................................................................xv
Preface........................................................................................................xvii
Acknowledgments.......................................................................................xxi
About the Authors....................................................................................xxiii
Part I: Introduction.........................................................................................1
Chapter 1: What Is the Point of Test-Driven Development?.....................3
Software Development as a Learning Process.....................................3
Feedback Is the Fundamental Tool....................................................4
Practices That Support Change..........................................................5
Test-Driven Development in a Nutshell.............................................6
The Bigger Picture.............................................................................7
Testing End-to-End............................................................................8
Levels of Testing................................................................................9
External and Internal Quality..........................................................10
Chapter 2: Test-Driven Development with Objects................................13
A Web of Objects............................................................................13
Values and Objects..........................................................................13
Follow the Messages........................................................................14
Tell, Don t Ask................................................................................17
But Sometimes Ask..........................................................................17
Unit-Testing the Collaborating Objects...........................................18
Support for TDD with Mock Objects..............................................19
ix
Contents
Chapter 3: An Introduction to the Tools................................................21
Stop Me If You ve Heard This One Before......................................2.1
A Minimal Introduction to JUnit 4..................................................21
Hamcrest Matchers and assertThat()...............................................24
jMock2: Mock Objects....................................................................25
Part II: The Process of Test-Driven Development.........................................29
Chapter 4: Kick-Starting the Test-Driven Cycle.....................................31
Introduction....................................................................................31
First, Test a Walking Skeleton.........................................................32
Deciding the Shape of the Walking Skeleton....................................33
Build Sources of Feedback...............................................................35
Expose Uncertainty Early................................................................36
Chapter 5: Maintaining the Test-Driven Cycle.......................................39
Introduction....................................................................................39
Start Each Feature with an Acceptance Test....................................39
Separate Tests That Measure Progress from Those That Catch
Regressions......................................................................................40
Start Testing with the Simplest Success Case....................................41
Write the Test That You d Want to Read........................................42
Watch the Test Fail..........................................................................42
Develop from the Inputs to the Outputs..........................................43
Unit-Test Behavior, Not Methods....................................................43
Listen to the Tests............................................................................44
Tuning the Cycle.............................................................................45
Chapter 6: Object-Oriented Style...........................................................47
Introduction................................................................................47
Designing for Maintainability..........................................................47
Internals vs. Peers................................................... .........50
No And s, Or s, or But s..................................................................51
Object Peer Stereotypes........................................................................52
Composite Simpler Than the Sum of Its Parts..................................53
Context Independence..................................................................54
Hiding the Right Information..........................................................55
An Opinionated View..........................................................56
Chapter 7: Achieving Object-Oriented Design..............................................57
How Writing a Test First Helps the Design ZZZZZZZZZZ . 57
Communication over Classification....................co
Contents
Value Types.....................................................................................59
Where Do Objects Come From?......................................................60
Identify Relationships with Interfaces..............................................63
Refactor Interfaces Too...................................................................63
Compose Objects to Describe System Behavior...............................64
Building Up to Higher-Level Programming......................................65
And What about Classes?................................................................67
Chapter 8: Building on Third-Party Code..............................................69
Introduction....................................................................................69
Only Mock Types That You Own...................................................69
Mock Application Objects in Integration Tests................................71
Part ID: A Worked Example.........................................................................73
Chapter 9: Commissioning an Auction Sniper........................................75
To Begin at the Beginning................................................................75
Communicating with an Auction.....................................................78
Getting There Safely........................................................................79
This Isn t Real.................................................................................81
Chapter 10: The Walking Skeleton........................................................83
Get the Skeleton out of the Closet...................................................83
Our Very First Test..........................................................................84
Some Initial Choices........................................................................86
Chapter 11: Passing the First Test..........................................................89
Building the Test Rig.......................................................................89
Failing and Passing the Test.............................................................95
The Necessary Minimum...............................................................102
Chapter 12: Getting Ready to Bid........................................................105
An Introduction to the Market......................................................105
A Test for Bidding.........................................................................106
The AuctionMessageTranslator.....................................................112
Unpacking a Price Message............................................................118
Finish the Job.................................................................................121
Chapter 13: The Sniper Makes a Bid...................................................123
Introducing AuctionSniper.............................................................123
Sending a Bid.................................................................................126
Tidying Up the Implementation.....................................................131
Contents
Defer Decisions..............................................................................13^
1 XI
Emergent Design............................................................................
Chapter 14: The Sniper Wins the Auction............................................139
First, a Failing Test........................................................................139
Who Knows about Bidders?...........................................................14®
The Sniper Has More to Say..........................................................143
The Sniper Acquires Some State.....................................................144
The Sniper Wins............................................................................146
Making Steady Progress.................................................................148
Chapter 15: Towards a Real User Interface.........................................149
A More Realistic Implementation..................................................149
Displaying Price Details.................................................................152
Simplifying Sniper Events...............................................................159
Follow Through.............................................................................164
Final Polish....................................................................................168
Observations..................................................................................171
Chapter 16: Sniping for Multiple Items................................................175
Testing for Multiple Items.............................................................175
Adding Items through the User Interface........................................183
Observations..................................................................................189
Chapter 17: Teasing Apart Main.........................................................191
Finding a Role...............................................................................191
Extracting the Chat........................................................................192
Extracting the Connection.............................................................195
Extracting the SnipersTableModel.................................................197
Observations..................................................................................201
Chapter 18: Filling In the Details.........................................................205
A More Useful Application............................................................205
Stop When We ve Had Enough......................................................205
Observations............................................................212
Chapter 19: Handling Failure..........................215
What If It Doesn t Work?.......................... ...........................215
Detecting the Failure..........................................................................217
Displaying the Failure................................ ................................218
Disconnecting the Sniper..............................................................2l9
Recording the Failure...................
Observations... ....................................
...............................................................................225
Contents
Part IV: Sustainable Test-Driven Development...........................................227
Chapter 20: Listening to the Tests........................................................229
Introduction...................................................................................229
I Need to Mock an Object I Can t Replace (without Magic)..........230
Logging Is a Feature.......................................................................233
Mocking Concrete Classes.............................................................235
Don t Mock Values........................................................................237
Bloated Constructor.......................................................................238
Confused Object............................................................................240
Too Many Dependencies...............................................................241
Too Many Expectations.................................................................242
What the Tests Will Tell Us (If We re Listening)............................244
Chapter 21: Test Readability...............................................................247
Introduction...................................................................................247
Test Names Describe Features.......................................................248
Canonical Test Structure................................................................251
Streamline the Test Code...............................................................252
Assertions and Expectations..........................................................254
Literals and Variables....................................................................255
Chapter 22: Constructing Complex Test Data.....................................257
Introduction...................................................................................257
Test Data Builders.........................................................................258
Creating Similar Objects................................................................259
Combining Builders.......................................................................261
Emphasizing the Domain Model with Factory Methods................261
Removing Duplication at the Point of Use.....................................262
Communication First.....................................................................264
Chapter 23: Test Diagnostics...............................................................267
Design to Fail.................................................................................267
Small, Focused, Well-Named Tests................................................268
Explanatory Assertion Messages....................................................268
Highlight Detail with Matchers.....................................................268
Self-Describing Value.....................................................................269
Obviously Canned Value...............................................................270
Tracer Object.................................................................................270
Explicitly Assert That Expectations Were Satisfied........................271
Diagnostics Are a First-Class Feature.............................................271
Contents
Chapter 24: Test Flexibility..................................................................273
Introduction...................................................................................273
Test for Information, Not Representation......................................274
Precise Assertions...........................................................................275
Precise Expectations.......................................................................277
Guinea Pig Objects....................................................................284
Part V: Advanced Topics............................................................................287
Chapter 25: Testing Persistence............................................................289
Introduction...................................................................................289
Isolate Tests That Affect Persistent State........................................290
Make Tests Transaction Boundaries Explicit.................................292
Testing an Object That Performs Persistence Operations...............294
Testing That Objects Can Be Persisted...........................................297
But Database Tests Are S-l-o-w!....................................................300
Chapter 26: Unit Testing and Threads.................................................301
Introduction...................................................................................301
Separating Functionality and Concurrency Policy..........................302
Unit-Testing Synchronization.........................................................306
Stress-Testing Passive Objects........................................................311
Synchronizing the Test Thread with Background Threads.............312
The Limitations of Unit Stress Tests...............................................313
Chapter 27: Testing Asynchronous Code.............................................315
Introduction...................................................................................315
Sampling or Listening....................................................................316
Two Implementations....................................................................318
Runaway Tests..............................................................................322
Lost Updates..................................................................................323
Testing That an Action Has No Effect...........................................325
Distinguish Synchronizations and Assertions.................................326
Externalize Event Sources..............................................................326
Afterword: A Brief History of Mock Objects..............................................329
Appendix A: jMock2 Cheat Sheet.................................................................
Appendix B: Writing a Hamcrest Matcher..................................343
Bibliography..............................................
|
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| indexdate | 2024-12-20T14:36:45Z |
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| language | English |
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| spellingShingle | Freeman, Steve Pryce, Nat Growing object-oriented software, guided by tests Object-oriented programming (Computer science) Computer software Testing Software (DE-588)4055382-6 gnd Programmierung (DE-588)4076370-5 gnd Objektorientierung (DE-588)4346172-4 gnd Langzeitversuch (DE-588)4332269-4 gnd |
| subject_GND | (DE-588)4055382-6 (DE-588)4076370-5 (DE-588)4346172-4 (DE-588)4332269-4 |
| title | Growing object-oriented software, guided by tests |
| title_auth | Growing object-oriented software, guided by tests |
| title_exact_search | Growing object-oriented software, guided by tests |
| title_full | Growing object-oriented software, guided by tests Steve Freeman and Nat Pryce |
| title_fullStr | Growing object-oriented software, guided by tests Steve Freeman and Nat Pryce |
| title_full_unstemmed | Growing object-oriented software, guided by tests Steve Freeman and Nat Pryce |
| title_short | Growing object-oriented software, guided by tests |
| title_sort | growing object oriented software guided by tests |
| topic | Object-oriented programming (Computer science) Computer software Testing Software (DE-588)4055382-6 gnd Programmierung (DE-588)4076370-5 gnd Objektorientierung (DE-588)4346172-4 gnd Langzeitversuch (DE-588)4332269-4 gnd |
| topic_facet | Object-oriented programming (Computer science) Computer software Testing Software Programmierung Objektorientierung Langzeitversuch |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=020473991&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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