dotnet test doesn't forward build command line options correctly (#50084)

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: Youssef1313 <[email protected]>

Author: Copilot

src/Cli/dotnet/Commands/Test/TestCommandParser.cs

@@ -293,6 +293,7 @@ private static Command GetVSTestCliCommand()
         command.Options.Add(VerbosityOption);
         command.Options.Add(CommonOptions.ArchitectureOption);
         command.Options.Add(CommonOptions.OperatingSystemOption);
+        command.Options.Add(CommonOptions.PropertiesOption);
         command.Options.Add(CommonOptions.DisableBuildServersOption);
         command.Options.Add(VsTestTargetOption);
         command.SetAction(TestCommand.Run);

test/dotnet.Tests/CommandTests/Test/TestCommandParserTests.cs

@@ -3,6 +3,7 @@
 
 #nullable disable
 
+using System.CommandLine;
 using Microsoft.DotNet.Cli.Commands.Test;
 
 namespace Microsoft.DotNet.Cli.Test.Tests
@@ -60,5 +61,18 @@ public void SurroundWithDoubleQuotesHandlesCorrectlyOddCountOfTrailingBackslashe
             var result = TestCommandParser.SurroundWithDoubleQuotes(input);
             result.Should().Be("\"" + input + "\\\"");
         }
+
+        [Fact]
+        public void VSTestCommandIncludesPropertiesOption()
+        {
+            var command = TestCommandParser.GetCommand();
+            
+            // Verify that the command includes a property option that supports the /p alias
+            var propertyOption = command.Options.FirstOrDefault(o => 
+                o.Aliases.Contains("/p") || o.Aliases.Contains("--property"));
+            
+            propertyOption.Should().NotBeNull("VSTest command should include CommonOptions.PropertiesOption to support /p Property=Value syntax");
+            propertyOption.Aliases.Should().Contain("/p", "PropertiesOption should include /p alias for MSBuild compatibility");
+        }
     }
 }