ConvertPropertiesAndValuesToHashtable Extension method

public static class Extensions { public static Hashtable ConvertPropertiesAndValuesToHashtable(this object obj) { var ht = new Hashtable();

        // get all public static properties of obj type
        var propertyInfos = obj.GetType().GetProperties().Where(a=>a.MemberType.Equals(MemberTypes.Property)).ToArray();
        // sort properties by name
        Array.Sort(propertyInfos, (propertyInfo1, propertyInfo2) => propertyInfo1.Name.CompareTo(propertyInfo2.Name));

        // write property names
        foreach (PropertyInfo propertyInfo in propertyInfos)
        {
            ht.Add(propertyInfo.Name, propertyInfo.GetValue(obj, BindingFlags.Public, null, null, CultureInfo.CurrentCulture));
        }

        return ht;
    }
}

Tests

using System; using System.Collections; using System.Globalization; using System.Linq; using System.Reflection;

using Microsoft.VisualStudio.TestTools.UnitTesting;

using Presentation;
using Presentation.Mappers;
using Presentation.Model;

using SoftwareApproach.TestingExtensions;

using TestHelpers;

\[Concern(typeof(DocumentMetaDataToDmsDocumentMetaDataMapper))\]
\[TestClass\]
public class WhenUsingExtensions : ContextSpecification<DocumentMetaDataToDmsDocumentMetaDataMapper>
{
    private DocumentMetadata metadata;

    private Hashtable ht;

    protected override void Context()
    {
        metadata = RandomHelper.FillPropertiesWithRandomValues<DocumentMetadata>(new DocumentMetadata());
        metadata.RiskId = 12;
    }

    protected override void Because()
    {
        ht = metadata.ConvertPropertiesAndValuesToHashtable();
    }

    \[TestMethod\]
    public void ShouldContainCorrectCountForNumberOfMembers()
    {
        ht.Count.ShouldEqual(metadata.GetType().GetProperties().Where(a=>a.MemberType.Equals(MemberTypes.Property)).Count());
    }

    \[TestMethod\]
    public void ShouldMapAllPropertiesToHashtableCorrectly()
    {
        metadata.Account.ShouldEqual(ht\["Account"\].ToString());
        metadata.AssociatedNames.ShouldEqual(ht\["AssociatedNames"\].ToString());
        metadata.Broker.ShouldEqual(ht\["Broker"\].ToString());
        metadata.BrokerContact.ShouldEqual(ht\["BrokerContact"\].ToString());
        metadata.CreatedDate.ShouldEqual(Convert.ToDateTime(ht\["CreatedDate"\], CultureInfo.CurrentCulture));
        metadata.ExpiryDate.ShouldEqual(Convert.ToDateTime(ht\["ExpiryDate"\], CultureInfo.CurrentCulture));
        metadata.InceptionDate.ShouldEqual(Convert.ToDateTime(ht\["InceptionDate"\], CultureInfo.CurrentCulture));
        metadata.PolicyReference.ShouldEqual(ht\["PolicyReference"\].ToString());
        metadata.QuoteReference.ShouldEqual(ht\["QuoteReference"\].ToString());
        metadata.RiskId.ShouldEqual(Convert.ToInt32(ht\["RiskId"\]));
        metadata.Status.ShouldEqual(ht\["Status"\].ToString());
        metadata.Underwriter.ShouldEqual(ht\["Underwriter"\].ToString());
        metadata.UniqueMarketReference.ShouldEqual(ht\["UniqueMarketReference"\].ToString());
        metadata.YearOfAccount.ShouldEqual(Convert.ToInt32(ht\["YearOfAccount"\]));
        
    }
}

Published: 27/01/2010

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