public void Display_Test() { var subject = new InterfaceDeclaration(new ExportKeyword(), new Identifier("JeppesTest"), null, ImmutableArray <IMemberDeclaration> .Empty .Add(new PropertyDeclaration("name", new PredefinedType(TypescriptBuiltInTypes.String))) .Add(new PropertyDeclaration("isTrue", new PredefinedType(TypescriptBuiltInTypes.Boolean))) .Add(new PropertyDeclaration("array", new ArrayType(new TypeReference("Super", ImmutableArray <TypeParameter> .Empty .Add(new TypeParameter(new PredefinedType(TypescriptBuiltInTypes.Boolean)))))) ) ); _testOutputHelper.WriteLine(subject.Display()); }