Add short forms of some options in dotnet test (#46827)

Author: mariam-abdulla

src/Cli/dotnet/commands/dotnet-test/CliConstants.cs

@@ -7,6 +7,7 @@ internal static class CliConstants
     {
         public const string DotnetRunCommand = "dotnet run";
         public const string HelpOptionKey = "--help";
+        public const string ShortHelpOptionKey = "-h";
         public const string ServerOptionKey = "--server";
         public const string DotNetTestPipeOptionKey = "--dotnet-test-pipe";
         public const string FrameworkOptionKey = "--framework";

src/Cli/dotnet/commands/dotnet-test/TestingPlatformCommand.cs

@@ -204,7 +204,7 @@ private static BuildOptions GetBuildOptions(ParseResult parseResult, int degreeO
                 msbuildArgs);
         }
 
-        private static bool ContainsHelpOption(IEnumerable<string> args) => args.Contains(CliConstants.HelpOptionKey) || args.Contains(CliConstants.HelpOptionKey.Substring(0, 2));
+        private static bool ContainsHelpOption(IEnumerable<string> args) => args.Contains(CliConstants.HelpOptionKey) || args.Contains(CliConstants.ShortHelpOptionKey);
 
         private void CompleteRun()
         {

src/Cli/dotnet/commands/dotnet-test/TestingPlatformOptions.cs

@@ -46,7 +46,7 @@ internal static class TestingPlatformOptions
             Arity = ArgumentArity.ExactlyOne
         };
 
-        public static readonly CliOption<string> ListTestsOption = new("--list-tests")
+        public static readonly CliOption<string> ListTestsOption = new("--list-tests", "-t")
         {
             Description = LocalizableStrings.CmdListTestsDescription,
             Arity = ArgumentArity.Zero

test/dotnet-test.Tests/GivenDotnetTestBuildsAndRunsHelp.cs

@@ -45,7 +45,7 @@ public void RunHelpOnMultipleTestProjects_ShouldReturnZeroAsExitCode(string conf
             CommandResult result = new DotnetTestCommand(Log, disableNewOutput: false)
                                     .WithWorkingDirectory(testInstance.Path)
                                     .WithEnableTestingPlatform()
-                                    .Execute(CliConstants.HelpOptionKey, TestingPlatformOptions.ConfigurationOption.Name, configuration);
+                                    .Execute(CliConstants.ShortHelpOptionKey, TestingPlatformOptions.ConfigurationOption.Name, configuration);
 
             if (!TestContext.IsLocalized())
             {