sgx-azure-quote-provider: add test-suite derivation

pkgs/os-specific/linux/sgx/azure-dcap-client/default.nix

···
 , openssl
 , pkg-config
 , linkFarmFromDrvs
+, callPackage
 }:
 
 let
···
     "-C src/Linux"
     "prefix=$(out)"
   ];
+
+  # Online test suite; run with
+  # $(nix-build -A sgx-azure-dcap-client.tests.suite)/bin/tests
+  passthru.tests.suite = callPackage ./test-suite.nix { };
 
   meta = with lib; {
     description = "Interfaces between SGX SDKs and the Azure Attestation SGX Certification Cache";

pkgs/os-specific/linux/sgx/azure-dcap-client/test-suite.nix

···
+{ lib
+, sgx-azure-dcap-client
+, gtest
+, makeWrapper
+}:
+sgx-azure-dcap-client.overrideAttrs (oldAttrs: {
+  nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [
+    makeWrapper
+    gtest
+  ];
+
+  buildFlags = [
+    "tests"
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    install -D ./src/Linux/tests "$out/bin/tests"
+
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    wrapProgram "$out/bin/tests" --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ sgx-azure-dcap-client ]}"
+  '';
+})