Fixed test issues

Author: trueromanus

src/FlowCommandLine/CommandLine.cs

@@ -360,17 +360,19 @@ private void ShowHelp ( List<string> parts, bool fullInfo = false ) {
 
                         m_commandLineProvider.WriteLine ( $"  {name}{value.Description}" );
                     }
+                } else {
+                    ShowApplicationUsage ();
                 }
             } else {
                 if ( !parts.Any () ) return;
 
-                ShowApplicationUsage ();
-
                 var command = parts.First ();
                 if ( m_commands.ContainsKey ( command ) || m_asyncCommands.ContainsKey ( command ) ) {
                     m_commandLineProvider.WriteLine ( $" " );
-                    ShowHelpBySingleCommand ( parts );
+                    if (!ShowHelpBySingleCommand ( parts ) ) ShowApplicationUsage ();
                 } else {
+                    ShowApplicationUsage ();
+
                     m_commandLineProvider.WriteLine ( $"{m_applicationName} version {m_applicationVersion}" );
                     m_commandLineProvider.WriteLine ( "Command is incorrect!" );
                 }

src/FlowCommandLineTests/CommandLineUnitTests.cs

@@ -260,10 +260,11 @@ public void RunCommand_NotSuccess_RequiredField () {
             Assert.True ( isCorrect );
             Assert.Equal ( "Not all required parameters is defined!", messages.First () );
             Assert.Equal ( " ", messages.ElementAt ( 1 ) );
-            Assert.Equal ( "The following arguments are available:", messages.ElementAt ( 2 ) );
-            Assert.Equal ( "  --Parameter1 Description", messages.ElementAt ( 3 ) );
-            Assert.Equal ( "The following options are available:", messages.ElementAt ( 4 ) );
-            Assert.Equal ( "  --Parameter2 Description", messages.ElementAt ( 5 ) );
+            Assert.Equal ( "usage:  test [<parameters>]", messages.ElementAt ( 2 ) );
+            Assert.Equal ( "The following arguments are available:", messages.ElementAt ( 4 ) );
+            Assert.Equal ( "  --Parameter1 Description", messages.ElementAt ( 5 ) );
+            Assert.Equal ( "The following options are available:", messages.ElementAt ( 6 ) );
+            Assert.Equal ( "  --Parameter2 Description", messages.ElementAt ( 7 ) );
         }
 
         public record RunCommand_Success_QuotedParameters_Class {