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annotate SilverlightValidation/SilverlightValidation.Tests/ViewModels/UserViewModel_Commands.cs @ 109:11994ccdc50b

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First wave of tests complete
author stevenhollidge <stevenhollidge@hotmail.com>
date Sun, 06 May 2012 20:37:32 +0100
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109
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1 using GalaSoft.MvvmLight.Messaging;
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2 using Microsoft.VisualStudio.TestTools.UnitTesting;
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3 using SilverlightValidation.Messages;
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4 using SilverlightValidation.Tests.Helpers;
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5
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6 namespace SilverlightValidation.Tests.ViewModels
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7 {
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8 [TestClass]
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9 public class UserViewModel_Commands
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10 {
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11 [TestMethod]
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12 public void WhenNewViewModel_ThenOkCommandIsExecutable()
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13 {
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14 // arrange
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15 var vm = Helper.CreateDefaultUserViewModel();
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16
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17 // assert
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18 Assert.IsTrue(vm.OkCommand.CanExecute(null));
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19 }
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20
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21 [TestMethod]
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22 public void WhenNewViewModel_WithOkExecuted_ThenShouldNotRaiseEvent()
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23 {
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24 // arrange
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25 var vm = Helper.CreateDefaultUserViewModel();
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26 bool hasMessage = false;
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27 Messenger.Default.Register<UserViewResponseMessage>(this, message => { hasMessage = true; });
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28
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29 // act
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30 vm.OkCommand.Execute(null);
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31
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32 // assert
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33 Assert.IsFalse(hasMessage);
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34 }
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35
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36 [TestMethod]
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37 public void WhenNewViewModel_WithOkExecutedAndUsernameUpdatedWithInvalidData_ThenShouldNotRaiseEvent()
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38 {
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39 // arrange
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40 var vm = Helper.CreateDefaultUserViewModel();
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41 bool hasMessage = false;
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42 Messenger.Default.Register<UserViewResponseMessage>(this, message => { hasMessage = true; });
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43
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44 // act
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45 var shortData = "a";
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46 vm.Username = shortData;
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47 vm.OkCommand.Execute(null);
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48
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49 // assert
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50 Assert.IsFalse(hasMessage);
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51 }
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52
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53 [TestMethod]
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54 public void WhenNewViewModel_WithOkExecutedAndUsernameUpdated_ThenShouldRaiseEvent()
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55 {
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56 // arrange
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57 var vm = Helper.CreateValidUserViewModel();
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58 bool hasMessage = false;
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59 Messenger.Default.Register<UserViewResponseMessage>(this, message => { hasMessage = true; });
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60
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61 // act
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62 vm.Username = "updated";
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63 vm.OkCommand.Execute(null);
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64
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65 // assert
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66 Assert.IsTrue(vm.IsChanged);
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67 Assert.IsTrue(hasMessage);
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68 }
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69
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70 [TestMethod]
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71 public void WhenNewViewModel_ThenCancelCommandIsExecutable()
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72 {
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73 // arrange
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74 var vm = Helper.CreateDefaultUserViewModel();
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75
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76 // assert
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77 Assert.IsTrue(vm.CancelCommand.CanExecute(null));
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78 }
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79
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80 [TestMethod]
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81 public void WhenNewViewModel_WithCancelExecuted_ThenShouldRaiseEvent()
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82 {
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83 // arrange
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84 var vm = Helper.CreateDefaultUserViewModel();
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85 bool hasMessage = false;
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86 Messenger.Default.Register<UserViewResponseMessage>(this, message => { hasMessage = true; });
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87
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88 // act
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89 vm.CancelCommand.Execute(null);
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90
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91 // assert
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92 Assert.IsTrue(hasMessage);
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93 }
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94
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95 }
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96 }