add testcase of issue# 424

Author: moh-hassan

Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
  <PropertyGroup>
-   <NoWarn>CS1591;8002;NU5125</NoWarn>
+   <NoWarn>CS1591;CS0219;8002;NU5125</NoWarn>
  </PropertyGroup>
  <PropertyGroup Condition="$(TargetFramework.StartsWith('net4'))">
     <DefineConstants>$(DefineConstants);NETFRAMEWORK</DefineConstants>

src/CommandLine/CommandLine.csproj

@@ -14,7 +14,7 @@
     <Authors>gsscoder;nemec;ericnewton76</Authors>
     <Title>Command Line Parser Library</Title>
     <Version Condition="'$(VersionSuffix)' != ''">$(VersionSuffix)</Version>
-    <Version Condition="'$(VersionSuffix)' == ''">0.0.0</Version>
+    <Version Condition="'$(VersionSuffix)' == ''">2.5.0-Dev</Version>
     <Description Condition="'$(BuildTarget)' != 'fsharp'">Terse syntax C# command line parser for .NET.  For FSharp support see CommandLineParser.FSharp.  The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command line arguments and related tasks.</Description>
     <Description Condition="'$(BuildTarget)' == 'fsharp'">Terse syntax C# command line parser for .NET with F# support. The Command Line Parser Library offers to CLR applications a clean and concise API for manipulating command line arguments and related tasks.</Description>
     <Copyright>Copyright (c) 2005 - 2018 Giacomo Stelluti Scala &amp; Contributors</Copyright>

tests/CommandLine.Tests/CommandLine.Tests.csproj

@@ -3,7 +3,6 @@
   <PropertyGroup>
     <OutputType>Library</OutputType>
     <TargetFrameworks>net461;netcoreapp2.0</TargetFrameworks>
-    <DefineConstants>$(DefineConstants);PLATFORM_DOTNET</DefineConstants>
     <DefineConstants Condition="'$(BuildTarget)' != 'fsharp'">$(DefineConstants);SKIP_FSHARP</DefineConstants>
     <AssemblyOriginatorKeyFile>..\..\CommandLine.snk</AssemblyOriginatorKeyFile>
     <SignAssembly>true</SignAssembly>
@@ -12,12 +11,15 @@
     <Version Condition="'$(VersionSuffix)' != ''">$(VersionSuffix)</Version>
     <Version Condition="'$(VersionSuffix)' == ''">2.5.0</Version>
     <Copyright>Copyright (c) 2005 - 2018 Giacomo Stelluti Scala &amp; Contributors</Copyright>
+	<IsTestProject>true</IsTestProject>
   </PropertyGroup>
   <ItemGroup Condition="'$(BuildTarget)' != 'fsharp'">
     <Compile Remove="Fakes\Options_With_FSharpOption.cs" />
     <Compile Remove="Unit\Infrastructure\FSharpOptionHelperTests.cs" />
   </ItemGroup>
-
+  <PropertyGroup Condition="$(TargetFramework.StartsWith('netcoreapp'))">
+    <DefineConstants>$(DefineConstants);PLATFORM_DOTNET</DefineConstants>
+  </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\CommandLine\CommandLine.csproj" />
   </ItemGroup>
@@ -26,8 +28,8 @@
     <PackageReference Include="FluentAssertions" Version="5.4.1" />
     <PackageReference Include="FsCheck" Version="2.11.0" />
     <PackageReference Include="FSharp.Core" Version="4.5.1" Condition="'$(BuildTarget)' == 'fsharp'" />
-    <PackageReference Include="xunit" Version="2.4.0" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.1" />
 
   </ItemGroup>

tests/CommandLine.Tests/Unit/Issue424Tests.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using Xunit;
+
+namespace CommandLine.Tests.Unit
+{
+
+    //MailAndSmsWarningSenderTests
+    public class Issue424Tests
+    {
+        private MailAndSmsWarningSender _sut;
+
+        public Issue424Tests()
+        {
+            _sut = new MailAndSmsWarningSender();
+        }
+
+        [Fact]
+        public void SendSmsOnWarning()
+        {
+            //Arrange
+            void Action() => _sut.ParseArgumentsAndRun(
+                new[] { "--task", "MailAndSmsWarningSender", "--test", "hejtest" });
+            // Act & Assert
+            Assert.Throws<NotImplementedException>((Action)Action);
+        }
+    }
+
+    public class MailAndSmsWarningSender
+    {
+        internal class Options
+        {
+            [Option("task")]
+            public string Task { get; set; }
+        }
+
+        public void ParseArgumentsAndRun(string[] args)
+        {
+            Parser.Default.ParseArguments<Options>(args)
+                .WithParsed(ExecuteTaskWithOptions)
+                .WithNotParsed(HandleParseError);
+        }
+
+        private void HandleParseError(IEnumerable<Error> errs)
+        {
+            throw new NotImplementedException();
+        }
+
+        private void ExecuteTaskWithOptions(Options opts)
+        {
+            Console.WriteLine("Executing");
+        }
+
+    }
+}