Add a test case where fusion manifest is used to support activation without regfree

Author: dmachaj

test/test_cpp20/activation_without_regfree.cpp

@@ -14,6 +14,21 @@ TEST_CASE("activation_withoug_regfree_system_type")
     REQUIRE_NOTHROW(Uri(L"https://bing.com"));
 }
 
+TEST_CASE("activation_manifested_avoiding_regfree")
+{
+    bool fusionRegistrationWorked{ false };
+    try
+    {
+        // app.manifest has registration for the Simple runtimeclass so activation should succeed.
+        Simple s{};
+        fusionRegistrationWorked = true;
+    }
+    catch (...)
+    {
+    }
+    REQUIRE(fusionRegistrationWorked);
+}
+
 TEST_CASE("activation_withoug_regfree_fails")
 {
     bool threwException{ false };

test/test_cpp20/app.manifest

@@ -0,0 +1,9 @@
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+    <file name="test_component.dll">
+        <activatableClass
+            name="test_component.Simple"
+            threadingModel="both"
+            xmlns="urn:schemas-microsoft-com:winrt.v1"
+         />
+    </file>
+</assembly>

test/test_cpp20/test_cpp20.vcxproj

@@ -286,6 +286,9 @@
     </ClCompile>
     <ClCompile Include="ranges.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <Manifest Include="app.manifest" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>