test(nunit): enable parallel in assertion-only mode

Author: delatrie

tests/Allure.NUnit.Tests/GlobalSetup.cs

@@ -2,8 +2,12 @@
 
 [assembly: System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
 
+#if !ALLURE_TEST_ASSERT_ONLY
+
 [assembly: NotInParallel(["Allure.NUnit", "Allure.Net.Commons"])]
 
+#endif
+
 namespace Allure.NUnit.Tests;
 
 public class GlobalHooks

tests/Directory.Build.targets

@@ -31,6 +31,10 @@
 
     </PropertyGroup>
 
+    <PropertyGroup Condition=" '$(Allure_AssertionOnlyTesting)' == 'true' ">
+        <DefineConstants>$(DefineConstants);ALLURE_TEST_ASSERT_ONLY</DefineConstants>
+    </PropertyGroup>
+
     <!-- At this point, all AllureSample items must be already defined.
      We're converting them to AdditionalFiles items to make them visible
      by the source generators. Only items with ProjectSuffix metadata set
@@ -59,6 +63,8 @@
             )</_Allure_BuildTasksProject>
         </PropertyGroup>
 
+        <Message Text="DefineConstants=$(DefineConstants)" Importance="high" />
+
         <MSBuild
             Projects="$(_Allure_BuildTasksProject)"
             Targets="Restore;Build"