Add test that covers including command line arguments in the comments

XmlSchemaClassGenerator.Tests/XmlTests.cs

@@ -56,7 +56,9 @@ private static IEnumerable<string> ConvertXml(string name, IEnumerable<string> x
  CodeTypeReferenceOptions = generatorPrototype.CodeTypeReferenceOptions,
  DoNotForceIsNullable = generatorPrototype.DoNotForceIsNullable,
  CreateGeneratedCodeAttributeVersion = generatorPrototype.CreateGeneratedCodeAttributeVersion,
- NetCoreSpecificCode = generatorPrototype.NetCoreSpecificCode
+ NetCoreSpecificCode = generatorPrototype.NetCoreSpecificCode,
+ GenerateCommandLineArgumentsComment = generatorPrototype.GenerateCommandLineArgumentsComment,
+ CommandLineArgumentsProvider = generatorPrototype.CommandLineArgumentsProvider,
  };
 
  gen.CommentLanguages.Clear();
@@ -2388,5 +2390,64 @@ void UnknownAttributeHandler(object sender, XmlAttributeEventArgs e)
  AssertEx.Equal(deserializedObject, deserializedXml);
  }
  }
+
+ [Theory]
+ [InlineData("fake command line arguments", "fake command line arguments")]
+ [InlineData(null, "N/A")]
+ public void IncludeCommandLineArguments(string commandLineArguments, string expectedCommandLineArguments)
+ {
+ const string xsd = @"<?xml version=""1.0"" encoding=""UTF-8""?>
+<xs:schema elementFormDefault=""qualified"" xmlns:xs=""http://www.w3.org/2001/XMLSchema"" targetNamespace=""http://local.none"" xmlns:l=""http://local.none"">
+ <xs:element name=""document"" type=""l:elem"" />
+ <xs:complexType name=""elem"">
+ <xs:attribute name=""Text"" type=""xs:string""/>
+ </xs:complexType>
+</xs:schema>";
+
+ var generator = new Generator
+ {
+ GenerateInterfaces = false,
+ NamespaceProvider = new NamespaceProvider
+ {
+ GenerateNamespace = key => "Test"
+ },
+ GenerateCommandLineArgumentsComment = true,
+ CommandLineArgumentsProvider = new CommandLineArgumentsProvider(commandLineArguments)
+ };
+
+ var contents = ConvertXml(nameof(IncludeCommandLineArguments), xsd, generator);
+
+ var csharp = Assert.Single(contents);
+
+ CompareOutput(
+ $@"//------------------------------------------------------------------------------
+// <auto-generated>
+// This code was generated by a tool.
+//
+// Changes to this file may cause incorrect behavior and will be lost if
+// the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+// This code was generated by Tests version 1.0.0.1 using the following command:
+// {expectedCommandLineArguments}
+namespace Test
+{{
+ 
+ 
+ [System.CodeDom.Compiler.GeneratedCodeAttribute(""Tests"", ""1.0.0.1"")]
+ [System.SerializableAttribute()]
+ [System.Xml.Serialization.XmlTypeAttribute(""elem"", Namespace=""http://local.none"")]
+ [System.ComponentModel.DesignerCategoryAttribute(""code"")]
+ [System.Xml.Serialization.XmlRootAttribute(""document"", Namespace=""http://local.none"")]
+ public partial class Elem
+ {{
+ 
+ [System.Xml.Serialization.XmlAttributeAttribute(""Text"")]
+ public string Text {{ get; set; }}
+ }}
+}}
+", csharp);
+ }
  }
 }

XmlSchemaClassGenerator/CommandLineArgumentsProvider.cs

@@ -9,7 +9,7 @@ public class CommandLineArgumentsProvider
  {
  public CommandLineArgumentsProvider(string commandLineArguments)
  {
- CommandLineArguments = commandLineArguments ?? throw new ArgumentNullException(nameof(commandLineArguments));
+ CommandLineArguments = commandLineArguments;
  }
 
  public string CommandLineArguments { get; }