[MNTR] fix test dll loading error (#5044)

* Fix assembly loading

* Fix regex for passing test

* Try to start a full build

* Regex \w includes underscore

* Revert back regex to \w

* Update NotUsed.cs

Co-authored-by: Aaron Stannard <[email protected]>

Author: Arkatufus

src/core/Akka.MultiNodeTestRunner.Shared/Sinks/MessageSink.cs

@@ -89,7 +89,7 @@ public enum MultiNodeTestRunnerMessageType
         };
 
         private const string NodePassStatusRegexString =
-            @"\[(\w){4}(?<node>[0-9]{1,2})(?<role>:\w+)?\]\[(?<time>\d{1,4}[- /.]\d{1,4}[- /.]\d{1,4}\s\d{1,2}:\d{1,2}:\d{1,2}(\s(AM|PM)){0,1})\]\[(?<status>(PASS|FAIL))\]{1}\s(?<test>.*)";
+            @"\[(\w){4}(?<node>[0-9]{1,2})(?<role>:[\w-]+)?\]\[(?<time>\d{1,4}[- /.]\d{1,4}[- /.]\d{1,4}\s\d{1,2}:\d{1,2}:\d{1,2}(\s(AM|PM)){0,1})\]\[(?<status>(PASS|FAIL))\]{1}\s(?<test>.*)";
         protected static readonly Regex NodePassStatusRegex = new Regex(NodePassStatusRegexString);
 
         private const string NodePassed = "PASS";

src/core/Akka.MultiNodeTestRunner/Discovery.cs

@@ -71,8 +71,12 @@ private List<NodeTest> LoadTestCaseDetails(ITestCaseDiscoveryMessage testCaseDis
         {
             try
             {
+#if CORECLR
+                var specType = testCaseDiscoveryMessage.TestAssembly.Assembly.GetType(testClass.Name).ToRuntimeType();
+#else
                 var testAssembly = Assembly.LoadFrom(testCaseDiscoveryMessage.TestAssembly.Assembly.AssemblyPath);
                 var specType = testAssembly.GetType(testClass.Name);
+#endif
                 var roles = RoleNames(specType);
 
                 var details = roles.Select((r, i) => new NodeTest