class/System.ComponentModel.Composition/Tests/ComponentModelUnitTest/System/ComponentModel/Composition/ExportMetadataAttributeTests.cs

   1 // -----------------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 // -----------------------------------------------------------------------
   4 using System;
   5 using System.ComponentModel.Composition;
   6 using Microsoft.VisualStudio.TestTools.UnitTesting;
   7 using System.UnitTesting;
   8
   9 namespace System.ComponentModel.Composition
  10 {
  11     [TestClass]
  12     public class ExportMetadataAttributeTests
  13     {
  14         [TestMethod]
  15         public void Constructor_NullAsNameArgument_ShouldSetNamePropertyToEmptyString()
  16         {
  17             var attribute = new ExportMetadataAttribute((string)null, "Value");
  18
  19             Assert.AreEqual(string.Empty, attribute.Name);
  20         }
  21
  22         [TestMethod]
  23         public void Constructor_ShouldSetIsMultiplePropertyToFalse()
  24         {
  25             var attribute = new ExportMetadataAttribute("Name", "Value");
  26
  27             Assert.IsFalse(attribute.IsMultiple);
  28         }
  29
  30         [TestMethod]
  31         public void Constructor_ValueAsNameArgument_ShouldSetNameProperty()
  32         {
  33             var expectations = Expectations.GetMetadataNames();
  34
  35             foreach (var e in expectations)
  36             {
  37                 var attribute = new ExportMetadataAttribute(e, "Value");
  38
  39                 Assert.AreEqual(e, attribute.Name);
  40             }
  41         }
  42
  43         [TestMethod]
  44         public void Constructor_ValueAsValueArgument_ShouldSetValueProperty()
  45         {
  46             var expectations = Expectations.GetMetadataValues();
  47
  48             foreach (var e in expectations)
  49             {
  50                 var attribute = new ExportMetadataAttribute("Name", e);
  51
  52                 Assert.AreEqual(e, attribute.Value);
  53             }
  54         }
  55
  56         [TestMethod]
  57         public void IsMultiple_ValueAsValueArgument_ShouldSetPropert()
  58         {
  59             var expectations = Expectations.GetBooleans();
  60
  61             var attribute = new ExportMetadataAttribute("Name", "Value");
  62
  63             foreach (var e in expectations)
  64             {
  65                 attribute.IsMultiple = e;
  66                 Assert.AreEqual(e, attribute.IsMultiple);
  67             }
  68         }
  69     }
  70 }