public void Should_transform_def_symbol_node_into_variable_declaration_node()
{
var inputText = "(def text \"Hello, World!\")";
var originalRootNode = inputText.CreateAstNodes();
IVisitor <INode <AstNode>, INode <AstNode> > converter = new VariableDeclarationConverter();
var outputNode = converter.Visit(originalRootNode);
outputNode.Descendants().Any(d => d is VariableDefinitionNode).ShouldBe(true);
var declarationNode =
outputNode.Descendants()
.Where(d => d is VariableDefinitionNode)
.Cast <VariableDefinitionNode>()
.First();
declarationNode.Symbol.ShouldBe("text");
declarationNode.Value.ShouldBeOfType <StringNode>();
var stringNode = (StringNode)declarationNode.Value;
stringNode.Text.ShouldBe("Hello, World!");
}
public void Should_transform_more_than_one_variable_declaration()
{
var inputText = "((def x 321) (def y 123))";
var originalRootNode = inputText.CreateAstNodes();
IVisitor <INode <AstNode>, INode <AstNode> > converter = new VariableDeclarationConverter();
var outputNode = converter.Visit(originalRootNode);
var declarationNodes =
outputNode.Descendants()
.Where(d => d is VariableDefinitionNode)
.Cast <VariableDefinitionNode>().ToArray();
declarationNodes.Count().ShouldBe(2);
declarationNodes[0].Symbol.ShouldBe("x");
declarationNodes[1].Symbol.ShouldBe("y");
var numberNodes = new[] { declarationNodes[0].Value, declarationNodes[1].Value }.Select(node => node as NumberNode).Where(n => n != null).ToArray();
numberNodes.ShouldNotBeEmpty();
numberNodes[0].Number.ShouldBe("321");
numberNodes[1].Number.ShouldBe("123");
}
