Add project files.

BrokerageLib/BrokerageLib.csproj

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{07F455FF-CE11-40F2-A66E-95FA497522FB}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>BrokerageLib</RootNamespace>
+    <AssemblyName>BrokerageLib</AssemblyName>
+    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="CommissionConstants.cs" />
+    <Compile Include="CommissionCalculator.cs" />
+    <Compile Include="PaymentDate.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup />
+  <ItemGroup>
+    <Content Include="Scenarios\CommisionCalcScenario.txt" />
+    <Content Include="Scenarios\PaymentDateScenario.txt" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>

BrokerageLib/CommissionCalculator.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace BrokerageLib {
+
+	public class CommissionCalculator {
+
+		
+		public decimal DetermineVariableRate(int unitsSold, decimal unitPrice) {
+
+			// Sales representative gets top commission rate
+			// if they sell over the sales threshold amount
+			// or if they sell more than the max unit threshold
+			if (unitsSold < 0)
+			{
+				throw new ArgumentOutOfRangeException("UnitsSold cannot be less than zero.");
+			}
+
+			if (unitPrice < 0)
+			{
+				throw new ArgumentOutOfRangeException("unitPrice cannot be less than zero.");
+			}
+
+			decimal grossSale = unitsSold * unitPrice;
+			if (grossSale > Constants.CommissionThreshold.SalesAmount || unitsSold > Constants.CommissionThreshold.UnitAmount)
+			{
+				return grossSale * Constants.CommissionRate.Top;
+			}
+			else
+			{
+				
+				return grossSale * Constants.CommissionRate.Standard;
+			}
+		}
+	}
+}

BrokerageLib/CommissionConstants.cs

@@ -0,0 +1,21 @@
+namespace BrokerageLib {
+
+	public class Constants {
+
+		public class CommissionRate {
+			public const decimal Standard = 0.08m;
+			public const decimal Earner = 0.11m;
+			public const decimal Top = 0.14m;
+		}
+
+		public class Discount {
+			public const decimal PreferredCustomer = 0.2m;
+			public const decimal BulkOrder = 0.5m;
+		}
+
+		public class CommissionThreshold {
+			public const decimal SalesAmount = 12000m;
+			public const decimal UnitAmount = 400m;
+		}
+	}
+}

BrokerageLib/PaymentDate.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace BrokerageLib.PaymentSystem {
+	public class PaymentDate {
+		/// <summary>
+		///  Calculates a payment date 30 days in the future
+		///  from the provided date.
+		///  If the payment date is on a weekend, 
+		///  then move it to the first work day after the 
+		///  proposed date
+		/// </summary>
+		/// <param name="startingDate">the date to use as starting date.</param>
+		/// <returns></returns>
+		public DateTime CalculateFuturePaymentDate(DateTime startingDate) {
+			var tempDate = startingDate.AddDays(30);
+			switch (tempDate.DayOfWeek)
+			{
+				case DayOfWeek.Saturday:
+					tempDate = tempDate.AddDays(2);
+					break;
+				case DayOfWeek.Sunday:
+					tempDate = tempDate.AddDays(1); // Error in our code here!
+					break;
+
+			}
+			return tempDate;
+
+		}
+	}
+}

BrokerageLib/Properties/AssemblyInfo.cs

@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("BrokerageLib")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("BrokerageLib")]
+[assembly: AssemblyCopyright("Copyright ©  2016")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("07f455ff-ce11-40f2-a66e-95fa497522fb")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

BrokerageLib/Scenarios/CommisionCalcScenario.txt

@@ -0,0 +1 @@
+

BrokerageLib/Scenarios/PaymentDateScenario.txt

@@ -0,0 +1,10 @@
+[ The Given-When-Then pattern ]
+To calculate the next payment date for our customer bills
+
+Given a valid start date
+	When the future calculated payment date falls on a weekday
+	Then use the calculated date
+
+Given a valid start date 
+	When the future calculated payment date falls on a weekend
+	Then use the first Monday after calculated date

StartingSolution.sln

@@ -0,0 +1,37 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29509.3
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BrokerageLib", "BrokerageLib\BrokerageLib.csproj", "{07F455FF-CE11-40F2-A66E-95FA497522FB}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestingLib", "TestingLib\TestingLib.csproj", "{077F4E49-2A80-463A-B2D0-805DACB80469}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TestRunner", "TestRunner\TestRunner.csproj", "{65401167-7B49-4C88-AC43-F2B4A213951B}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{07F455FF-CE11-40F2-A66E-95FA497522FB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{077F4E49-2A80-463A-B2D0-805DACB80469}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{077F4E49-2A80-463A-B2D0-805DACB80469}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{077F4E49-2A80-463A-B2D0-805DACB80469}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{077F4E49-2A80-463A-B2D0-805DACB80469}.Release|Any CPU.Build.0 = Release|Any CPU
+		{65401167-7B49-4C88-AC43-F2B4A213951B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{65401167-7B49-4C88-AC43-F2B4A213951B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{65401167-7B49-4C88-AC43-F2B4A213951B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{65401167-7B49-4C88-AC43-F2B4A213951B}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {06FF9609-A8E6-43CD-8D0D-A55B7459171D}
+	EndGlobalSection
+EndGlobal

TestRunner/App.config

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>

TestRunner/App.xaml

@@ -0,0 +1,9 @@
+<Application x:Class="TestRunner.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:TestRunner"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

TestRunner/App.xaml.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace TestRunner
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}

TestRunner/MainWindow.xaml

@@ -0,0 +1,18 @@
+<Window x:Class="TestRunner.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:TestRunner"
+        mc:Ignorable="d"
+        WindowStartupLocation="CenterScreen"
+        Title="MainWindow" Height="450" Width="800">
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="1*"/>
+            <RowDefinition Height="9*"/>
+        </Grid.RowDefinitions>
+        <Button Content="Run Tests..." Click="ButtonBase_OnClick" />
+        <DataGrid Grid.Row="1" ItemsSource="{Binding}"/> 
+    </Grid>
+</Window>

TestRunner/MainWindow.xaml.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using TestingLib;
+
+namespace TestRunner
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        private ObservableCollection<TestingLib.UnitTestInfo> _results = new ObservableCollection<UnitTestInfo>();
+        public MainWindow()
+        {
+            InitializeComponent();
+            this.DataContext = _results;
+        }
+
+        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
+        {
+            var testClass = new TestingLib.TestThePaymentDate();
+            _results.Add( testClass.DateIs30DaysInFuture());
+            _results.Add(testClass.ReturnsMondayIfProposedIsSaturday());
+            _results.Add(testClass.ReturnsMondayIfProposedIsSunday());
+
+        }
+    }
+}

TestRunner/Properties/AssemblyInfo.cs

@@ -0,0 +1,55 @@
+using System.Reflection;
+using System.Resources;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Windows;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("TestRunner")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("TestRunner")]
+[assembly: AssemblyCopyright("Copyright ©  2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+//In order to begin building localizable applications, set
+//<UICulture>CultureYouAreCodingWith</UICulture> in your .csproj file
+//inside a <PropertyGroup>.  For example, if you are using US english
+//in your source files, set the <UICulture> to en-US.  Then uncomment
+//the NeutralResourceLanguage attribute below.  Update the "en-US" in
+//the line below to match the UICulture setting in the project file.
+
+//[assembly: NeutralResourcesLanguage("en-US", UltimateResourceFallbackLocation.Satellite)]
+
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
+
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

TestRunner/Properties/Resources.Designer.cs

@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace TestRunner.Properties
+{
+
+
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("TestRunner.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}

TestRunner/Properties/Resources.resx

@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

TestRunner/Properties/Settings.Designer.cs

@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace TestRunner.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}

TestRunner/Properties/Settings.settings

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="uri:settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>

TestRunner/TestRunner.csproj

@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{65401167-7B49-4C88-AC43-F2B4A213951B}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <RootNamespace>TestRunner</RootNamespace>
+    <AssemblyName>TestRunner</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <WarningLevel>4</WarningLevel>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xaml">
+      <RequiredTargetFramework>4.0</RequiredTargetFramework>
+    </Reference>
+    <Reference Include="WindowsBase" />
+    <Reference Include="PresentationCore" />
+    <Reference Include="PresentationFramework" />
+  </ItemGroup>
+  <ItemGroup>
+    <ApplicationDefinition Include="App.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </ApplicationDefinition>
+    <Page Include="MainWindow.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="MainWindow.xaml.cs">
+      <DependentUpon>MainWindow.xaml</DependentUpon>
+      <SubType>Code</SubType>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Properties\AssemblyInfo.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DesignTime>True</DesignTime>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\TestingLib\TestingLib.csproj">
+      <Project>{077f4e49-2a80-463a-b2d0-805dacb80469}</Project>
+      <Name>TestingLib</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>

TestingLib/Assert.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace TestingLib
+{
+    public class Assert
+    {
+        public static ObservableCollection<UnitTestInfo> TestResults { get; set; }
+
+        static Assert()
+        {
+            TestResults = new ObservableCollection<UnitTestInfo>();
+        }
+        public static void AreEqual(object first,
+            object second,
+            string message,
+            [CallerMemberName] string methodName = null)
+        {
+            var testInfo = new UnitTestInfo();
+            if (first.Equals(second))
+            {
+                testInfo.DidTestPass = true;
+            }
+            else
+            {
+                testInfo.DidTestPass = false;
+                testInfo.TestFailureMessage = message;
+            }
+            testInfo.MethodName = methodName;
+            TestResults.Add(testInfo);
+        }
+    }
+}

TestingLib/TestThePaymentDate.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using SUT = BrokerageLib;
+
+namespace TestingLib
+{
+    public class TestThePaymentDate
+    {
+        public UnitTestInfo DateIs30DaysInFuture()
+        {
+            var testInfo = new UnitTestInfo();
+
+            var pd = new SUT.PaymentSystem.PaymentDate();
+            var sampleDate = DateTime.Parse("2019-12-16");
+
+            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);
+
+            if (futureDate.Equals(sampleDate.AddDays(30)))
+            {
+                testInfo.DidTestPass = true;
+            }
+            else
+            {
+                testInfo.DidTestPass = false;
+                testInfo.TestFailureMessage = $"Expected date is not 30 days in the future.";
+            }
+            testInfo.MethodName = "DateIs30DaysInFuture";
+            return testInfo;
+        }
+        public UnitTestInfo ReturnsMondayIfProposedIsSunday()
+        {
+            var testInfo = new UnitTestInfo();
+
+            var pd = new SUT.PaymentSystem.PaymentDate();
+            var sampleDate = DateTime.Parse("2019-12-17");
+
+            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);
+
+            if (futureDate.DayOfWeek == DayOfWeek.Monday)
+            {
+                testInfo.DidTestPass = true;
+            }
+            else
+            {
+                testInfo.DidTestPass = false;
+                testInfo.TestFailureMessage = $"Expected date is not Monday.";
+            }
+
+            testInfo.MethodName = "ReturnsMondayIfProposedIsSunday";
+            return testInfo;
+        }
+        public UnitTestInfo ReturnsMondayIfProposedIsSaturday()
+        {
+            var testInfo = new UnitTestInfo();
+
+            var pd = new SUT.PaymentSystem.PaymentDate();
+            var sampleDate = DateTime.Parse("2019-12-15");
+
+            var futureDate = pd.CalculateFuturePaymentDate(sampleDate);
+
+            if (futureDate.DayOfWeek == DayOfWeek.Monday)
+            {
+                testInfo.DidTestPass = true;
+            }
+            else
+            {
+                testInfo.DidTestPass = false;
+                testInfo.TestFailureMessage = $"Expected date is not Monday.";
+            }
+
+            testInfo.MethodName = "ReturnsMondayIfProposedIsSaturday";
+            return testInfo;
+        }
+
+    }
+
+    public struct UnitTestInfo
+    {
+        public bool DidTestPass { get; set; }
+        public string TestFailureMessage { get; set; }
+        public string MethodName { get; set; }
+
+    }
+}

TestingLib/TestingLib.csproj

@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\BrokerageLib\BrokerageLib.csproj" />
+  </ItemGroup>
+
+</Project>