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/V4/StockTrader RI/Desktop/StockTraderRI.Infrastructure.Tests/Converters/StringToNullableNumberConverterFixture.cs

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C# | 110 lines | 64 code | 27 blank | 19 comment | 0 complexity | 0654157239da245887326b4185274113 MD5 | raw file
  1. //===================================================================================
  2. // Microsoft patterns & practices
  3. // Composite Application Guidance for Windows Presentation Foundation and Silverlight
  4. //===================================================================================
  5. // Copyright (c) Microsoft Corporation. All rights reserved.
  6. // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY
  7. // OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
  8. // LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  9. // FITNESS FOR A PARTICULAR PURPOSE.
  10. //===================================================================================
  11. // The example companies, organizations, products, domain names,
  12. // e-mail addresses, logos, people, places, and events depicted
  13. // herein are fictitious. No association with any real company,
  14. // organization, product, domain name, email address, logo, person,
  15. // places, or events is intended or should be inferred.
  16. //===================================================================================
  17. using System;
  18. using System.Globalization;
  19. using System.Text;
  20. using System.Collections.Generic;
  21. using System.Linq;
  22. using Microsoft.VisualStudio.TestTools.UnitTesting;
  23. using StockTraderRI.Infrastructure.Converters;
  24. namespace StockTraderRI.Infrastructure.Tests.Converters
  25. {
  26. /// <summary>
  27. /// Summary description for StringToNullableIntConverterFixture
  28. /// </summary>
  29. [TestClass]
  30. public class StringToNullableNumberConverterFixture
  31. {
  32. [TestMethod]
  33. public void ShouldConvertValidIntFromString()
  34. {
  35. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  36. string source = "123";
  37. object result = converter.ConvertBack(source, typeof(int?), null, null);
  38. Assert.IsInstanceOfType(result, typeof(int));
  39. Assert.AreEqual<int>(123, (int)result);
  40. }
  41. [TestMethod]
  42. public void ShouldReturnOriginalValueForNonNullableIntFromString()
  43. {
  44. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  45. string source = "123";
  46. object result = converter.ConvertBack(source, typeof(int), null, null);
  47. Assert.AreSame(source, result);
  48. }
  49. [TestMethod]
  50. public void ShouldReturnNullForInvalidInteger()
  51. {
  52. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  53. string source = "xxx";
  54. object result = converter.ConvertBack(source, typeof(int?), null, null);
  55. Assert.IsNull(result);
  56. }
  57. [TestMethod]
  58. public void ShouldConvertValidDecimalFromString()
  59. {
  60. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  61. string source = 10.05.ToString(CultureInfo.CurrentCulture);
  62. object result = converter.ConvertBack(source, typeof(decimal?), null, null);
  63. Assert.IsInstanceOfType(result, typeof(decimal));
  64. Assert.AreEqual<decimal>(10.05M, (decimal)result);
  65. }
  66. [TestMethod]
  67. public void ShouldReturnOriginalValueForNonNullableDecimalTarget()
  68. {
  69. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  70. string source = 10.05.ToString(CultureInfo.CurrentCulture);
  71. object result = converter.ConvertBack(source, typeof(decimal), null, null);
  72. Assert.AreSame(source, result);
  73. }
  74. [TestMethod]
  75. public void ShouldReturnNullForInvalidDecimal()
  76. {
  77. StringToNullableNumberConverter converter = new StringToNullableNumberConverter();
  78. string source = "xxx";
  79. object result = converter.ConvertBack(source, typeof(decimal?), null, null);
  80. Assert.IsNull(result);
  81. }
  82. }
  83. }