Support .NET Core LTS (#17)

* Relax dependencies in order to support .NET Core 2.1 LTS (#16)
* Target both .NET Core 2.1 and 3.1 in Tests project (#16)
* Change to windows-latest agent pool
* Add separate Test tasks for 2.1 and 3.1 (#16)

Resolves #16. 
+semver: feature

Author: mbhoek

SpecFlow.DependencyInjection.Tests/SpecFlow.DependencyInjection.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFrameworks>netcoreapp2.1;netcoreapp3.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <RootNamespace>SolidToken.SpecFlow.DependencyInjection.Tests</RootNamespace>
     <AssemblyName>SolidToken.SpecFlow.DependencyInjection.Tests</AssemblyName>
@@ -12,11 +12,25 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
+  </ItemGroup>
+
+  <!-- .NET Core 2.1 LTS -->
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">
+    <PackageReference Include="SpecFlow.Tools.MsBuild.Generation" Version="3.0.188" />
+    <PackageReference Include="SpecFlow.xUnit" Version="3.0.188" />
+    <PackageReference Include="xunit" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <!-- .NET Core 3.1 LTS -->
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp3.1' ">
     <PackageReference Include="SpecFlow.Tools.MsBuild.Generation" Version="3.1.82" />
     <PackageReference Include="SpecFlow.xUnit" Version="3.1.82" />
     <PackageReference Include="xunit" Version="2.4.1" />
@@ -25,7 +39,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
   </ItemGroup>
-
+  
   <ItemGroup>
     <ProjectReference Include="..\SpecFlow.DependencyInjection\SpecFlow.DependencyInjection.csproj" />
   </ItemGroup>

SpecFlow.DependencyInjection/SpecFlow.DependencyInjection.csproj

@@ -26,8 +26,8 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.1" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
-    <PackageReference Include="SpecFlow" Version="3.1.82" />
+    <PackageReference Include="SpecFlow" Version="3.0.188" />
   </ItemGroup>
 </Project>

azure-pipelines.yml

@@ -6,8 +6,8 @@ variables:
 trigger:
 - master
 
-#pool:
-#  vmImage: 'ubuntu-latest'
+pool:
+  vmImage: 'windows-latest'
 
 steps:
 # Restore
@@ -21,13 +21,20 @@ steps:
   inputs:
     command: build
     arguments: '--configuration $(BuildConfiguration)'
-# Test
+# Test .NET Core 2.1
 - task: DotNetCoreCLI@2
-  displayName: Test
+  displayName: Test .NET Core 2.1
   inputs:
     command: test
     projects: '**/*.Tests/*.csproj'
-    arguments: '--configuration $(BuildConfiguration)'
+    arguments: '--configuration $(BuildConfiguration) --framework netcoreapp2.1'
+# Test .NET Core 3.1
+- task: DotNetCoreCLI@2
+  displayName: Test .NET Core 3.1
+  inputs:
+    command: test
+    projects: '**/*.Tests/*.csproj'
+    arguments: '--configuration $(BuildConfiguration) --framework netcoreapp3.1'
 # Pack
 - task: DotNetCoreCLI@2
   displayName: Pack