Introduced a new CustomTopicTopicViewModel for testing

The `CustomTopic` represents a custom subclass of `Topic` with a number of specialized properties on it. The `CustomTopicTopicViewModel` represents a view model of that class for testing compatible type settings. Unit tests will follow.

Author: JeremyCaney

OnTopic.Tests/ViewModels/CustomTopicTopicViewModel.cs

@@ -0,0 +1,153 @@
+/*==============================================================================================================================
+| Author        Ignia, LLC
+| Client        Ignia, LLC
+| Project       Topics Library
+\=============================================================================================================================*/
+using OnTopic.Attributes;
+using OnTopic.Internal.Reflection;
+using OnTopic.Tests.Entities;
+
+namespace OnTopic.Tests.ViewModels {
+
+  /*============================================================================================================================
+  | VIEW MODEL: CUSTOM TOPIC
+  \---------------------------------------------------------------------------------------------------------------------------*/
+  /// <summary>
+  ///   Provides a topic view model which maps to the <see cref="CustomTopic"/>.
+  /// </summary>
+  /// <remarks>
+  ///   <para>
+  ///     This is a sample class intended for test purposes only; it is not designed for use in a production environment.
+  ///   </para>
+  ///   <para>
+  ///     Typically, topics wouldn't end in "Topic" (outside of <see cref="Topic"/>). Because <see cref="CustomTopic"/> does,
+  ///     the corresponding topic view model must be named <see cref="CustomTopicTopicViewModel"/> (with two <c>Topic</c>).
+  ///     Otherwise, when the <see cref="TypeAccessor"/> attempts to match it to its implied content type, it will strip the
+  ///     <c>TopicViewModel</c>, per conventions, and discover that there isn't a match for <c>Custom</c>. This is a peculiarity
+  ///     of the test case, and not something we'd expect in real-life scenarios.
+  ///   </para>
+  /// </remarks>
+  public class CustomTopicTopicViewModel {
+
+    /*==========================================================================================================================
+    | CONSTRUCTOR
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    public CustomTopicTopicViewModel(
+      string title,
+      string webPath,
+      string? textAttribute,
+      bool booleanAttribute,
+      string booleanAsStringAttribute,
+      int numericAttribute,
+      string nonNullableAttribute,
+      DateTime dateTimeAttribute,
+      Topic? topicReference,
+      string? unmatchedMember,
+      DateTime? isHidden
+    ) {
+      Title                     = title;
+      WebPath                   = webPath;
+      TextAttribute             = textAttribute;
+      BooleanAttribute          = booleanAttribute;
+      BooleanAsStringAttribute  = booleanAsStringAttribute;
+      NumericAttribute          = numericAttribute;
+      NonNullableAttribute      = nonNullableAttribute;
+      DateTimeAttribute         = dateTimeAttribute;
+      TopicReference            = topicReference;
+      UnmatchedMember           = unmatchedMember;
+      IsHidden                  = isHidden;
+    }
+
+    /*==========================================================================================================================
+    | TITLE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a reference to the <see cref="Topic.Title"/> property.
+    /// </summary>
+    public string Title { get; init; }
+
+    /*==========================================================================================================================
+    | WEB PATH
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides the root-relative web path of the Topic, based on an assumption that the root topic is bound to the root of
+    ///   the site.
+    /// </summary>
+    public string WebPath { get; init; }
+
+    /*==========================================================================================================================
+    | TEXT ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a text property which is intended to be mapped to a text attribute.
+    /// </summary>
+    public string? TextAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | BOOLEAN ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a Boolean property which is intended to be mapped to a Boolean attribute.
+    /// </summary>
+    public bool BooleanAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | BOOLEAN AS STRING ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a string property which is intended to be mapped to a Boolean attribute.
+    /// </summary>
+    public string BooleanAsStringAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | NUMERIC ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a numeric property which is intended to be mapped to a numeric attribute.
+    /// </summary>
+    public int NumericAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | NON-NULLABLE ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a property which does not permit null values as a means of ensuring the business logic is enforced when
+    ///   removing values.
+    /// </summary>
+    public string NonNullableAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | DATE/TIME ATTRIBUTE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a date/time property which is intended to be mapped to a date/time attribute.
+    /// </summary>
+    public DateTime DateTimeAttribute { get; init; }
+
+    /*==========================================================================================================================
+    | TOPIC REFERENCE
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a topic reference property which is intended to be mapped to a topic reference.
+    /// </summary>
+    public Topic? TopicReference { get; init; }
+
+    /*==========================================================================================================================
+    | UNMATCHED MEMBER
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a member that doesn't match any members of either <see cref="CustomTopic"/> or <see cref="Topic"/>.
+    /// </summary>
+    public string? UnmatchedMember { get; init; }
+
+    /*==========================================================================================================================
+    | MISMATCHED MEMBER
+    \-------------------------------------------------------------------------------------------------------------------------*/
+    /// <summary>
+    ///   Provides a member that corresponds to a property on <see cref="Topic"/>, but with an incompatible type.
+    /// </summary>
+    public DateTime? IsHidden { get; init; }
+
+
+  } //Class
+} //Namespace