test: ensure FCS is not referenced by FSharpLint.Client

Author: MrLuje

tests/FSharpLint.Client.Tests/FSharpLint.Client.Tests.fsproj

@@ -4,6 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
+    <Compile Include="ReferenceTests.fs" />
     <Compile Include="TestClient.fs" />
   </ItemGroup>
   <ItemGroup>

tests/FSharpLint.Client.Tests/ReferenceTests.fs

@@ -0,0 +1,14 @@
+module FSharpLint.Client.ReferenceTests
+
+open NUnit.Framework
+open System.IO
+open System
+
+[<Test>]
+let ``FSharpLint.Client should not reference FSharpLint.Core``() =
+    try
+        System.Activator.CreateInstanceFrom("FSharp.Compiler.Service.dll", "FSharp.Compiler.CodeAnalysis.FSharpCheckFileResults")
+        |> ignore
+    with
+    | :? FileNotFoundException as e -> () // dll is missing, what we want
+    | :? MissingMethodException as e -> Assert.Fail() // ctor is missing, dll was found