Testing Blog

TotT: Time is Random

Thursday, April 03, 2008
Share on Twitter Share on Facebook
Google
Labels: TotT

4 comments :

  1. AnonymousApril 4, 2008 at 1:49:00 AM PDT

    Could you give an example for the mutable singleton solution?

    ReplyDelete
    Replies
      Reply
  2. Rodrigo CoutoApril 4, 2008 at 1:55:00 AM PDT

    Creating an interface

    public interface DateUtil {
    public long currentTimeMillis();
    // ...
    }

    An having the class that implements nextMinuteFromNow() be injected with a implmentation of DateUtil, and using it instead of System.currentTimeMillis().

    This way, durring test, you could inject an implementation of DateUtil that does whatever you expect.

    ReplyDelete
    Replies
      Reply
  3. UnknownApril 28, 2008 at 4:54:00 PM PDT

    I understand what you're doing, but I do have to ask: Why would you unit test the first function? All you're testing is that the Date API works correctly, which, as a testing pattern, is a violation of encapsulation.

    Possibly, you just meant it as a strawman.

    ReplyDelete
    Replies
      Reply
  4. konbergOctober 31, 2009 at 1:58:00 PM PDT

    @Conrad, the value is in gaining confidence in your assumptions. Have you worked with the Date API? It's a mess. But worst of all, you can't test it, which is the point of the article.

    Okay this is a year and a half old, but a reply is still worthwhile.

    ReplyDelete
    Replies
      Reply
Add comment
Load more...

The comments you read and contribute here belong only to the person who posted them. We reserve the right to remove off-topic comments.

  

Labels


  • TotT 77
  • GTAC 61
  • James Whittaker 42
  • Misko Hevery 32
  • Anthony Vallone 27
  • Patrick Copeland 23
  • Jobs 18
  • Code Health 13
  • C++ 11
  • Andrew Trenk 10
  • Patrik Höglund 8
  • JavaScript 7
  • Allen Hutchison 6
  • George Pirocanac 6
  • Zhanyong Wan 6
  • Harry Robinson 5
  • Java 5
  • Julian Harty 5
  • Alberto Savoia 4
  • Ben Yu 4
  • Erik Kuefler 4
  • Philip Zembrod 4
  • Shyam Seshadri 4
  • Chrome 3
  • John Thomas 3
  • Lesley Katzen 3
  • Marc Kaplan 3
  • Markus Clermont 3
  • Sonal Shah 3
  • APIs 2
  • Abhishek Arya 2
  • Adam Bender 2
  • Alan Myrvold 2
  • Alek Icev 2
  • Android 2
  • April Fools 2
  • Chaitali Narla 2
  • Chris Lewis 2
  • Chrome OS 2
  • Diego Salas 2
  • Dillon Bly 2
  • Dori Reuveni 2
  • Jason Arbon 2
  • Jochen Wuttke 2
  • Kostya Serebryany 2
  • Marc Eaddy 2
  • Marko Ivanković 2
  • Max Kanat-Alexander 2
  • Mobile 2
  • Oliver Chang 2
  • Simon Stewart 2
  • Stefan Kennedy 2
  • Test Flakiness 2
  • Tony Voellm 2
  • WebRTC 2
  • Yvette Nameth 2
  • Zuri Kemp 2
  • Aaron Jacobs 1
  • Adam Porter 1
  • Adel Saoud 1
  • Alan Faulkner 1
  • Alex Eagle 1
  • Anantha Keesara 1
  • Antoine Picard 1
  • App Engine 1
  • Ari Shamash 1
  • Arif Sukoco 1
  • Benjamin Pick 1
  • Bob Nystrom 1
  • Bruce Leban 1
  • Carlos Arguelles 1
  • Carlos Israel Ortiz García 1
  • Cathal Weakliam 1
  • Christopher Semturs 1
  • Clay Murphy 1
  • Dan Shi 1
  • Dan Willemsen 1
  • Dave Chen 1
  • Dave Gladfelter 1
  • Derek Snyder 1
  • Diego Cavalcanti 1
  • Dmitry Vyukov 1
  • Eduardo Bravo Ortiz 1
  • Ekaterina Kamenskaya 1
  • Elliott Karpilovsky 1
  • Espresso 1
  • Google+ 1
  • Goran Petrovic 1
  • Goranka Bjedov 1
  • Hank Duan 1
  • Havard Rast Blok 1
  • Hongfei Ding 1
  • Jason Elbaum 1
  • Jason Huggins 1
  • Jay Han 1
  • Jeff Listfield 1
  • Jessica Tomechak 1
  • Jim Reardon 1
  • Joe Allan Muharsky 1
  • Joel Hynoski 1
  • John Micco 1
  • John Penix 1
  • Jonathan Rockway 1
  • Jonathan Velasquez 1
  • Josh Armour 1
  • Julie Ralph 1
  • Karin Lundberg 1
  • Kaue Silveira 1
  • Kevin Bourrillion 1
  • Kevin Graney 1
  • Kirkland 1
  • Kurt Alfred Kluever 1
  • Manjusha Parvathaneni 1
  • Marek Kiszkis 1
  • Mark Ivey 1
  • Mark Striebeck 1
  • Matt Lowrie 1
  • Meredith Whittaker 1
  • Michael Bachman 1
  • Michael Klepikov 1
  • Mike Aizatsky 1
  • Mike Wacker 1
  • Mona El Mahdy 1
  • Noel Yap 1
  • Patricia Legaspi 1
  • Peter Arrenbrecht 1
  • Peter Spragins 1
  • Phil Rollet 1
  • Pooja Gupta 1
  • Project Showcase 1
  • Radoslav Vasilev 1
  • Rajat Dewan 1
  • Rajat Jain 1
  • Rich Martin 1
  • Richard Bustamante 1
  • Roshan Sembacuttiaratchy 1
  • Ruslan Khamitov 1
  • Sean Jordan 1
  • Sharon Zhou 1
  • Siddartha Janga 1
  • Simran Basi 1
  • Stephen Ng 1
  • Tejas Shah 1
  • Test Analytics 1
  • Test Engineer 1
  • Tom O'Neill 1
  • Vojta Jína 1
  • iOS 1
  • mutation testing 1


Archive


  • ►  2022 (2)
    • ►  Feb (2)
  • ►  2021 (3)
    • ►  Jun (1)
    • ►  Apr (1)
    • ►  Mar (1)
  • ►  2020 (8)
    • ►  Dec (2)
    • ►  Nov (1)
    • ►  Oct (1)
    • ►  Aug (2)
    • ►  Jul (1)
    • ►  May (1)
  • ►  2019 (4)
    • ►  Dec (1)
    • ►  Nov (1)
    • ►  Jul (1)
    • ►  Jan (1)
  • ►  2018 (7)
    • ►  Nov (1)
    • ►  Sep (1)
    • ►  Jul (1)
    • ►  Jun (2)
    • ►  May (1)
    • ►  Feb (1)
  • ►  2017 (17)
    • ►  Dec (1)
    • ►  Nov (1)
    • ►  Oct (1)
    • ►  Sep (1)
    • ►  Aug (1)
    • ►  Jul (2)
    • ►  Jun (2)
    • ►  May (3)
    • ►  Apr (2)
    • ►  Feb (1)
    • ►  Jan (2)
  • ►  2016 (15)
    • ►  Dec (1)
    • ►  Nov (2)
    • ►  Oct (1)
    • ►  Sep (2)
    • ►  Aug (1)
    • ►  Jun (2)
    • ►  May (3)
    • ►  Apr (1)
    • ►  Mar (1)
    • ►  Feb (1)
  • ►  2015 (14)
    • ►  Dec (1)
    • ►  Nov (1)
    • ►  Oct (2)
    • ►  Aug (1)
    • ►  Jun (1)
    • ►  May (2)
    • ►  Apr (2)
    • ►  Mar (1)
    • ►  Feb (1)
    • ►  Jan (2)
  • ►  2014 (24)
    • ►  Dec (2)
    • ►  Nov (1)
    • ►  Oct (2)
    • ►  Sep (2)
    • ►  Aug (2)
    • ►  Jul (3)
    • ►  Jun (3)
    • ►  May (2)
    • ►  Apr (2)
    • ►  Mar (2)
    • ►  Feb (1)
    • ►  Jan (2)
  • ►  2013 (16)
    • ►  Dec (1)
    • ►  Nov (1)
    • ►  Oct (1)
    • ►  Aug (2)
    • ►  Jul (1)
    • ►  Jun (2)
    • ►  May (2)
    • ►  Apr (2)
    • ►  Mar (2)
    • ►  Jan (2)
  • ►  2012 (11)
    • ►  Dec (1)
    • ►  Nov (2)
    • ►  Oct (3)
    • ►  Sep (1)
    • ►  Aug (4)
  • ►  2011 (39)
    • ►  Nov (2)
    • ►  Oct (5)
    • ►  Sep (2)
    • ►  Aug (4)
    • ►  Jul (2)
    • ►  Jun (5)
    • ►  May (4)
    • ►  Apr (3)
    • ►  Mar (4)
    • ►  Feb (5)
    • ►  Jan (3)
  • ►  2010 (37)
    • ►  Dec (3)
    • ►  Nov (3)
    • ►  Oct (4)
    • ►  Sep (8)
    • ►  Aug (3)
    • ►  Jul (3)
    • ►  Jun (2)
    • ►  May (2)
    • ►  Apr (3)
    • ►  Mar (3)
    • ►  Feb (2)
    • ►  Jan (1)
  • ►  2009 (54)
    • ►  Dec (3)
    • ►  Nov (2)
    • ►  Oct (3)
    • ►  Sep (5)
    • ►  Aug (4)
    • ►  Jul (15)
    • ►  Jun (8)
    • ►  May (3)
    • ►  Apr (2)
    • ►  Feb (5)
    • ►  Jan (4)
  • ▼  2008 (75)
    • ►  Dec (6)
    • ►  Nov (8)
    • ►  Oct (9)
    • ►  Sep (8)
    • ►  Aug (9)
    • ►  Jul (9)
    • ►  Jun (6)
    • ►  May (6)
    • ▼  Apr (4)
      • GTAC: Call for Proposals
      • GTAC 2008 in Seattle
      • TotT: Avoiding Flakey Tests
      • TotT: Time is Random
    • ►  Mar (4)
    • ►  Feb (4)
    • ►  Jan (2)
  • ►  2007 (41)
    • ►  Oct (6)
    • ►  Sep (5)
    • ►  Aug (3)
    • ►  Jul (2)
    • ►  Jun (2)
    • ►  May (2)
    • ►  Apr (7)
    • ►  Mar (5)
    • ►  Feb (5)
    • ►  Jan (4)

Feed

follow us in feedly
  • Google
  • Privacy
  • Terms