private static void EvaluateSyntaxTreeNode(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
if (actual == null)
{
AddNullActualError(collector, actual, expected);
}
if (actual.IsBlock != expected.IsBlock)
{
AddMismatchError(collector, actual, expected);
}
else
{
if (expected.IsBlock)
{
EvaluateBlock(collector, (Block)actual, (Block)expected);
}
else
{
EvaluateSpan(collector, (Span)actual, (Span)expected);
}
}
}
private static void AddNullActualError(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
collector.AddError("{0} - FAILED :: Actual: << Null >>", expected);
}
private static void AddMismatchError(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
collector.AddError("{0} - FAILED :: Actual: {1}", expected, actual);
}
private static void AddPassedMessage(ErrorCollector collector, SyntaxTreeNode expected)
{
collector.AddMessage("{0} - PASSED", expected);
}
private static void AddNullActualError(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
collector.AddError("{0} - FAILED :: Actual: << Null >>", expected);
}
private static void AddMismatchError(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
collector.AddError("{0} - FAILED :: Actual: {1}", expected, actual);
}
private static void AddPassedMessage(ErrorCollector collector, SyntaxTreeNode expected)
{
collector.AddMessage("{0} - PASSED", expected);
}
private static void EvaluateBlock(ErrorCollector collector, Block actual, Block expected)
{
if (actual.Type != expected.Type || !expected.CodeGenerator.Equals(actual.CodeGenerator))
{
AddMismatchError(collector, actual, expected);
}
else
{
AddPassedMessage(collector, expected);
using (collector.Indent())
{
IEnumerator<SyntaxTreeNode> expectedNodes = expected.Children.GetEnumerator();
IEnumerator<SyntaxTreeNode> actualNodes = actual.Children.GetEnumerator();
while (expectedNodes.MoveNext())
{
if (!actualNodes.MoveNext())
{
collector.AddError("{0} - FAILED :: No more elements at this node", expectedNodes.Current);
}
else
{
EvaluateSyntaxTreeNode(collector, actualNodes.Current, expectedNodes.Current);
}
}
while (actualNodes.MoveNext())
{
collector.AddError("End of Node - FAILED :: Found Node: {0}", actualNodes.Current);
}
}
}
}
private static void EvaluateSpan(ErrorCollector collector, Span actual, Span expected)
{
if (!Equals(expected, actual))
{
AddMismatchError(collector, actual, expected);
}
else
{
AddPassedMessage(collector, expected);
}
}
private static void EvaluateSyntaxTreeNode(ErrorCollector collector, SyntaxTreeNode actual, SyntaxTreeNode expected)
{
if (actual == null)
{
AddNullActualError(collector, actual, expected);
}
if (actual.IsBlock != expected.IsBlock)
{
AddMismatchError(collector, actual, expected);
}
else
{
if (expected.IsBlock)
{
EvaluateBlock(collector, (Block)actual, (Block)expected);
}
else
{
EvaluateSpan(collector, (Span)actual, (Span)expected);
}
}
}
public static void EvaluateParseTree(Block actualRoot, Block expectedRoot)
{
// Evaluate the result
ErrorCollector collector = new ErrorCollector();
// Link all the nodes
expectedRoot.LinkNodes();
if (expectedRoot == null)
{
Assert.Null(actualRoot);
}
else
{
Assert.NotNull(actualRoot);
EvaluateSyntaxTreeNode(collector, actualRoot, expectedRoot);
if (collector.Success)
{
WriteTraceLine("Parse Tree Validation Succeeded:\r\n{0}", collector.Message);
}
else
{
Assert.True(false, String.Format("\r\n{0}", collector.Message));
}
}
}
private static void EvaluateSpan(ErrorCollector collector, SourceLocationTracker tracker, Span actual, Span expected) {
if (!actual.Equals(expected)) {
AddMismatchError(collector, tracker, actual, expected);
}
else {
AddPassedMessage(collector, tracker, expected);
}
}
public static void EvaluateParseTree(TestContext context, Block actualRoot, Block expectedRoot) {
// Evaluate the result
ErrorCollector collector = new ErrorCollector();
SourceLocationTracker tracker = new SourceLocationTracker();
// Link all the nodes
Span first = null;
Span previous = null;
foreach (Span span in expectedRoot.Flatten()) {
if(first == null) {
first = span;
}
span.Previous = previous;
if (previous != null) {
previous.Next = span;
}
previous = span;
}
Span.ClearCachedStartPoints(first);
if (expectedRoot == null) {
Assert.IsNull(actualRoot, "Expected an empty document. Actual: {0}", actualRoot);
}
else {
Assert.IsNotNull(actualRoot, "Expected a valid document, but it was empty");
EvaluateSyntaxTreeNode(collector, tracker, actualRoot, expectedRoot);
if (collector.Success) {
if (context != null) {
context.WriteLine("Parse Tree Validation Succeeded:\r\n{0}", collector.Message);
}
}
else {
Assert.Fail("\r\n{0}", collector.Message);
}
}
}