dotnet: add buildDotnetModule tests to sdk passthru.tests

pkgs/development/compilers/dotnet/wrapper.nix

@@ -18,6 +18,7 @@
   replaceVars,
   nugetPackageHook,
   xmlstarlet,
+  pkgs,
 }:
 type: unwrapped:
 stdenvNoCC.mkDerivation (finalAttrs: {
@@ -280,6 +281,16 @@ stdenvNoCC.mkDerivation (finalAttrs: {
         };
       }
       // lib.optionalAttrs (type == "sdk") ({
+        buildDotnetModule =
+          (pkgs.appendOverlays [
+            (self: super: {
+              dotnet-sdk = finalAttrs.finalPackage;
+              dotnet-runtime = finalAttrs.finalPackage.runtime;
+            })
+          ]).callPackage
+            ../../../test/dotnet/default.nix
+            { };
+
         console = lib.recurseIntoAttrs {
           # yes, older SDKs omit the comma
           cs = mkConsoleTests "C#" "cs" "Hello,?\\ World!";

pkgs/test/dotnet/use-dotnet-from-env/default.nix

@@ -26,7 +26,7 @@ let
     '';
   });
 
-  runtimeVersion = lib.getVersion dotnet-runtime;
+  runtimeVersion = lib.head (lib.splitString "-" (lib.getVersion dotnet-runtime));
   runtimeVersionFile = builtins.toFile "dotnet-version.txt" runtimeVersion;
 in
 {