http://www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method/ Thoughts on Software Development Sat, 11 Feb 2012 23:17:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method/comment-page-1/#comment-22349 Giorgio Sironi Tue, 08 Sep 2009 14:10:13 +0000 http://www.markhneedham.com/blog/?p=1613#comment-22349 I advocate to place null checks in a factory also for testing purposes. Otherwise when creating an User for a unit test, you will be forced to provide values to satisfy the assertion 'is not null' inside the User constructor, while you may even not caring what username or password are there in this particular test. I advocate to place null checks in a factory also for testing purposes. Otherwise when creating an User for a unit test, you will be forced to provide values to satisfy the assertion ‘is not null’ inside the User constructor, while you may even not caring what username or password are there in this particular test.

]]> http://www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method/comment-page-1/#comment-22321 Twitter Trackbacks for Coding: Checking invariants in a factory method at Mark Needham [markhneedham.com] on Topsy.com Mon, 07 Sep 2009 12:31:06 +0000 http://www.markhneedham.com/blog/?p=1613#comment-22321 [...] Coding: Checking invariants in a factory method at Mark Needham www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method – view page – cached Thoughts on Software Development — From the page [...] [...] Coding: Checking invariants in a factory method at Mark Needham http://www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method – view page – cached Thoughts on Software Development — From the page [...]

]]> http://www.markhneedham.com/blog/2009/09/06/coding-checking-invariants-in-a-factory-method/comment-page-1/#comment-22314 Reflective Perspective - Chris Alcock » The Morning Brew #427 Mon, 07 Sep 2009 07:43:29 +0000 http://www.markhneedham.com/blog/?p=1613#comment-22314 [...] Checking invariants in a factory method - Mark Needham talks about the use of the factory method to create objects in a consistent state by having the factory be responsible for ensuring all the invariants are satisfied [...] [...] Checking invariants in a factory method – Mark Needham talks about the use of the factory method to create objects in a consistent state by having the factory be responsible for ensuring all the invariants are satisfied [...]

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