Updated tests and fixed build YAML

Author: joonaszure

azure-pipelines.yml

@@ -9,6 +9,10 @@ steps:
   displayName: 'Use .Net Core sdk 3.0.100'
   inputs:
     version: 3.0.100
+- task: UseDotNet@2
+  displayName: 'Use .Net Core sdk 2.1.802'
+  inputs:
+    version: 2.1.802
 - task: DotNetCoreCLI@2
   displayName: 'dotnet build'
   inputs:

test/Joonasw.AspNetCore.SecurityHeaders.Tests/Joonasw.AspNetCore.SecurityHeaders.Tests.csproj

@@ -1,18 +1,18 @@
 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>netcoreapp1.0;netcoreapp2.0</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.0;netcoreapp3.0</TargetFrameworks>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.2" />
     <PackageReference Include="xunit" Version="2.3.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
   </ItemGroup>
-  <ItemGroup Condition="$(TargetFramework) == 'netcoreapp1.0'">
-    <PackageReference Include="Microsoft.AspNetCore.Http" Version="1.0.0" />
-  </ItemGroup>
   <ItemGroup Condition="$(TargetFramework) == 'netcoreapp2.0'">
-    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.0.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.0.3" />
+  </ItemGroup>
+  <ItemGroup Condition="$(TargetFramework) == 'netcoreapp3.0'">
+    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Joonasw.AspNetCore.SecurityHeaders\Joonasw.AspNetCore.SecurityHeaders.csproj" />