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annotate SilverlightValidation/SilverlightValidation.Tests/ViewModels/UserViewModelTests.cs @ 98:d0c2cac12376

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author stevenhollidge <stevenhollidge@hotmail.com>
date Sat, 05 May 2012 22:53:40 +0100
parents 1adc1ae981ea
children
rev   line source
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1 using System;
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2 using FluentAssertions.EventMonitoring;
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3 using NUnit.Framework;
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4 using SilverlightValidation.Models;
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5 using SilverlightValidation.Validators;
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6 using SilverlightValidation.ViewModels;
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7
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8 namespace SilverlightValidation.Tests.ViewModels
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9 {
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10 [TestFixture]
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11 class UserViewModelTests
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12 {
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13 #region Constructor
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14
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15 [Test]
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16 public void Constructor_WhenTwoNulls_ThenArgumentNullExceptionForModel()
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17 {
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18 Assert.Throws<ArgumentNullException>(() => new UserViewModel(null, null), "model");
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19 }
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20
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21 [Test]
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22 public void Constructor_WhenFirstParameterIsNull_ThenArgumentNullExceptionForModel()
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23 {
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24 Assert.Throws<ArgumentNullException>(() => new UserViewModel(null, new UserModelValidator()), "model");
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25 }
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26
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27 [Test]
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28 public void Constructor_WhenSecondParameterIsNull_ThenArgumentNullExceptionForValidator()
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29 {
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30 Assert.Throws<ArgumentNullException>(() => new UserViewModel(new UserModel(), null), "validator");
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31 }
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32
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33 #endregion
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34
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35 #region INotifyPropertyChanged
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36
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37 [Test]
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38 public void PropertyChange_WhenDateOfBirthUpdated_ThenFiresChangeEventAndIsChangedEqualsTrue()
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39 {
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40 // arrange
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41 var vm = CreateDefaultUserViewModel();
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42 vm.MonitorEvents();
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43
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44 // act
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45 vm.DateOfBirth = new DateTime(1977, 01, 01);
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46
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47 // assert
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48 vm.ShouldRaisePropertyChangeFor(x => x.DateOfBirth);
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49 Assert.IsTrue(vm.IsChanged);
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50 }
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51
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52 [Test]
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53 public void PropertyChange_WhenDescriptionUpdated_ThenFiresChangeEventAndIsChangedEqualsTrue()
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54 {
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55 // arrange
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56 var vm = CreateDefaultUserViewModel();
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57 vm.MonitorEvents();
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58
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59 // act
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60 vm.Description = "New description";
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61
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62 // assert
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63 vm.ShouldRaisePropertyChangeFor(x => x.Description);
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64 Assert.IsTrue(vm.IsChanged);
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65 }
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66
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67 #endregion
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68
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69 #region INotifyDataErrorInfo
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70
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71 #endregion
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72
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73 #region Commands
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74
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75 #endregion
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76
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77 #region Helpers
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78
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79 private static UserViewModel CreateDefaultUserViewModel()
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80 {
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81 var vm = new UserViewModel(new UserModel(), new UserModelValidator());
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82 return vm;
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83 }
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84
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85 #endregion
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86 }
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87 }