MSDN Magazine - December 2008 - (Page 41) There are a lot of existing solutions for sending e-mails from .NET code, so I’m not really that concerned about the actual act of sending the e-mail, but I’m very concerned about whether my application code decided to send an e-mail, to whom, and what the message body was. What I need to test in the WorkflowService is the simple fact that it did or did not choose to send an e-mail based on the final status of the WorkflowState object. [Test] public void send_an_email_if_the_WorkflowState_is_urgent() { // setting up the WorkflowState var theOwner = new User(); var theWorkflowState = new WorkflowState{Priority = "Urgent", Id = 5, Owner = theOwner}; repository.Save(theWorkflowState); // Exercise the ChangeStatus() method service.ChangeStatus(new ChangeWorkflowStatusMessage(){ NewStatus = "Urgent", WorkflowId = 5}); // Verify that the change status email was sent emailGateway.AssertWasCalled(x => x.SendChangeStatusEmailTo(theWorkflowState, theOwner)); } Separate Deciding from Doing One of the best things you can do in your code is to treat performing an action and deciding to take an action as two separate responsibilities. In the case of WorkflowService, it is only responsible for deciding to send the e-mail: // email the owner of this workflow and tell them // that something happened if this is an Urgent item if (workflow.Priority == "Urgent") { // workflow.Owner is the user who is responsible for // this workflow _emailGateway.SendChangeStatusEmailTo(workflow, workflow.Owner); } it easy to unit test the business logic, but did it give you anything else? Pulling all access to the actual e-mail sending code into a single class helps in the following ways: to find configuration data to set up the System.Mail.SmtpClient object to send the e-mail in .NET code. simpler. WorkflowService just needs to say: send this e-mail to this user. to use a third-party tool instead of System.Mail.SmtpClient You could just let the code send the e-mail to the right people, but it’s generally pretty annoying to set up fake e-mail accounts or run around and ask people if they just got an e-mail from your just to check whether WorkflowService decided to send the e-mail notification (see Figure 6). msdnmagazine.com December 2008 http://www.codejock.com http://www.codejock.com
Table of Contents Feed for the Digital Edition of MSDN Magazine - December 2008 MSDN Magazine - December 2008 Contents Toolbox CLR Inside Out Advanced Basics Cutting Edge Patterns In Practice Team System Real-World WF Visual Studio OBA Tools SOA Data Access Geneva Framework Test Run Foundations Windows With C++ Going Places End Bracket MSDN Magazine - December 2008 MSDN Magazine - December 2008 - (Page Intro) MSDN Magazine - December 2008 - Contents (Page Cover1) MSDN Magazine - December 2008 - Contents (Page Cover2) MSDN Magazine - December 2008 - Contents (Page 1) MSDN Magazine - December 2008 - Contents (Page 2) MSDN Magazine - December 2008 - Contents (Page 3) MSDN Magazine - December 2008 - Contents (Page 4) MSDN Magazine - December 2008 - Contents (Page 5) MSDN Magazine - December 2008 - Contents (Page 6) MSDN Magazine - December 2008 - Contents (Page 7) MSDN Magazine - December 2008 - Contents (Page 8) MSDN Magazine - December 2008 - Contents (Page 9) MSDN Magazine - December 2008 - Contents (Page 10) MSDN Magazine - December 2008 - Toolbox (Page 11) MSDN Magazine - December 2008 - Toolbox (Page 12) MSDN Magazine - December 2008 - Toolbox (Page 13) MSDN Magazine - December 2008 - Toolbox (Page 14) MSDN Magazine - December 2008 - CLR Inside Out (Page 15) MSDN Magazine - December 2008 - CLR Inside Out (Page 16) MSDN Magazine - December 2008 - CLR Inside Out (Page 17) MSDN Magazine - December 2008 - CLR Inside Out (Page 18) MSDN Magazine - December 2008 - CLR Inside Out (Page 19) MSDN Magazine - December 2008 - CLR Inside Out (Page 20) MSDN Magazine - December 2008 - CLR Inside Out (Page 21) MSDN Magazine - December 2008 - Advanced Basics (Page 22) MSDN Magazine - December 2008 - Advanced Basics (Page 23) MSDN Magazine - December 2008 - Advanced Basics (Page 24) MSDN Magazine - December 2008 - Advanced Basics (Page 25) MSDN Magazine - December 2008 - Advanced Basics (Page 26) MSDN Magazine - December 2008 - Advanced Basics (Page 27) MSDN Magazine - December 2008 - Advanced Basics (Page 28) MSDN Magazine - December 2008 - Cutting Edge (Page 29) MSDN Magazine - December 2008 - Cutting Edge (Page 30) MSDN Magazine - December 2008 - Cutting Edge (Page 31) MSDN Magazine - December 2008 - Cutting Edge (Page 32) MSDN Magazine - December 2008 - Cutting Edge (Page 33) MSDN Magazine - December 2008 - Cutting Edge (Page 34) MSDN Magazine - December 2008 - Cutting Edge (Page 35) MSDN Magazine - December 2008 - Cutting Edge (Page 36) MSDN Magazine - December 2008 - Patterns In Practice (Page 37) MSDN Magazine - December 2008 - Patterns In Practice (Page 38) MSDN Magazine - December 2008 - Patterns In Practice (Page 39) MSDN Magazine - December 2008 - Patterns In Practice (Page 40) MSDN Magazine - December 2008 - Patterns In Practice (Page 41) MSDN Magazine - December 2008 - Patterns In Practice (Page 42) MSDN Magazine - December 2008 - Patterns In Practice (Page 43) MSDN Magazine - December 2008 - Team System (Page 44) MSDN Magazine - December 2008 - Team System (Page 45) MSDN Magazine - December 2008 - Team System (Page 46) MSDN Magazine - December 2008 - Team System (Page 47) MSDN Magazine - December 2008 - Team System (Page 48) MSDN Magazine - December 2008 - Team System (Page 49) MSDN Magazine - December 2008 - Team System (Page 50) MSDN Magazine - December 2008 - Team System (Page 51) MSDN Magazine - December 2008 - Real-World WF (Page 52) MSDN Magazine - December 2008 - Real-World WF (Page 53) MSDN Magazine - December 2008 - Real-World WF (Page 54) MSDN Magazine - December 2008 - Real-World WF (Page 55) MSDN Magazine - December 2008 - Real-World WF (Page 56) MSDN Magazine - December 2008 - Real-World WF (Page 57) MSDN Magazine - December 2008 - Real-World WF (Page 58) MSDN Magazine - December 2008 - Real-World WF (Page 59) MSDN Magazine - December 2008 - Real-World WF (Page 60) MSDN Magazine - December 2008 - Real-World WF (Page 61) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 62) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 63) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 64) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 65) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 66) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 67) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 68) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 69) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 70) MSDN Magazine - December 2008 - Visual Studio OBA Tools (Page 71) MSDN Magazine - December 2008 - SOA Data Access (Page 72) MSDN Magazine - December 2008 - SOA Data Access (Page 73) MSDN Magazine - December 2008 - SOA Data Access (Page 74) MSDN Magazine - December 2008 - SOA Data Access (Page 75) MSDN Magazine - December 2008 - SOA Data Access (Page 76) MSDN Magazine - December 2008 - SOA Data Access (Page 77) MSDN Magazine - December 2008 - SOA Data Access (Page 78) MSDN Magazine - December 2008 - SOA Data Access (Page 79) MSDN Magazine - December 2008 - SOA Data Access (Page 80) MSDN Magazine - December 2008 - SOA Data Access (Page 81) MSDN Magazine - December 2008 - Geneva Framework (Page 82) MSDN Magazine - December 2008 - Geneva Framework (Page 83) MSDN Magazine - December 2008 - Geneva Framework (Page 84) MSDN Magazine - December 2008 - Geneva Framework (Page 85) MSDN Magazine - December 2008 - Geneva Framework (Page 86) MSDN Magazine - December 2008 - Geneva Framework (Page 87) MSDN Magazine - December 2008 - Geneva Framework (Page 88) MSDN Magazine - December 2008 - Geneva Framework (Page 89) MSDN Magazine - December 2008 - Geneva Framework (Page 90) MSDN Magazine - December 2008 - Test Run (Page 91) MSDN Magazine - December 2008 - Test Run (Page 92) MSDN Magazine - December 2008 - Test Run (Page 93) MSDN Magazine - December 2008 - Test Run (Page 94) MSDN Magazine - December 2008 - Test Run (Page 95) MSDN Magazine - December 2008 - Test Run (Page 96) MSDN Magazine - December 2008 - Test Run (Page 97) MSDN Magazine - December 2008 - Test Run (Page 98) MSDN Magazine - December 2008 - Test Run (Page 99) MSDN Magazine - December 2008 - Test Run (Page 100) MSDN Magazine - December 2008 - Foundations (Page 101) MSDN Magazine - December 2008 - Foundations (Page 102) MSDN Magazine - December 2008 - Foundations (Page 103) MSDN Magazine - December 2008 - Foundations (Page 104) MSDN Magazine - December 2008 - Foundations (Page 105) MSDN Magazine - December 2008 - Foundations (Page 106) MSDN Magazine - December 2008 - Foundations (Page 107) MSDN Magazine - December 2008 - Foundations (Page 108) MSDN Magazine - December 2008 - Windows With C++ (Page 109) MSDN Magazine - December 2008 - Windows With C++ (Page 110) MSDN Magazine - December 2008 - Windows With C++ (Page 111) MSDN Magazine - December 2008 - Windows With C++ (Page 112) MSDN Magazine - December 2008 - Going Places (Page 113) MSDN Magazine - December 2008 - Going Places (Page 114) MSDN Magazine - December 2008 - Going Places (Page 115) MSDN Magazine - December 2008 - Going Places (Page 116) MSDN Magazine - December 2008 - Going Places (Page 117) MSDN Magazine - December 2008 - Going Places (Page 118) MSDN Magazine - December 2008 - Going Places (Page 119) MSDN Magazine - December 2008 - End Bracket (Page 120) MSDN Magazine - December 2008 - End Bracket (Page Cover3) MSDN Magazine - December 2008 - End Bracket (Page Cover4)
For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.