public void EnsureSuccessful_ThrowsIfCompilationFailed()
{
// Arrange
var compilationFailure = new CompilationFailure("test", Enumerable.Empty<Dnx.Runtime.DiagnosticMessage>());
var failures = new[] { compilationFailure };
var result = CompilationResult.Failed(failures);
// Act and Assert
Assert.Null(result.CompiledType);
Assert.Same(failures, result.CompilationFailures);
var exception = Assert.Throws<CompilationFailedException>(() => result.EnsureSuccessful());
var failure = Assert.Single(exception.CompilationFailures);
Assert.Same(compilationFailure, failure);
}
private static void BuildCodeSnippetDiv(CompilationFailure failure,
StringBuilder builder,
ref int totalErrorsShown)
{
const int NumContextLines = 3;
var fileName = failure.SourceFilePath;
if (totalErrorsShown < MaxCompilationErrorsToShow &&
!string.IsNullOrEmpty(fileName))
{
builder.Append(@"<div class=""codeSnippet"">")
.AppendFormat(@"<div class=""filename""><code>{0}</code></div>", HtmlEncodeAndReplaceLineBreaks(fileName))
.AppendLine();
IEnumerable<string> fileContent;
if (string.IsNullOrEmpty(failure.SourceFileContent))
{
fileContent = File.ReadLines(fileName);
}
else
{
fileContent = failure.SourceFileContent.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
}
foreach (var message in failure.Messages)
{
if (totalErrorsShown++ > MaxCompilationErrorsToShow)
{
break;
}
if (totalErrorsShown > 1)
{
builder.AppendLine("<br />");
}
builder.Append(@"<div class=""error-message"">")
.Append(HtmlEncodeAndReplaceLineBreaks(message.Message))
.Append("</div>");
// StartLine and EndLine are 1-based
var startLine = message.StartLine - 1;
var endLine = message.EndLine - 1;
var preContextIndex = Math.Max(startLine - NumContextLines, 0);
var index = preContextIndex + 1;
foreach (var line in fileContent.Skip(preContextIndex).Take(startLine - preContextIndex))
{
builder.Append(@"<div class=""line faded"">")
.AppendFormat(@"<span class=""line-number"">{0}</span><code>", index++)
.Append(HtmlEncodeAndReplaceLineBreaks(line))
.AppendLine("</code></div>");
}
var numErrorLines = 1 + Math.Max(0, endLine - startLine);
foreach (var line in fileContent.Skip(startLine).Take(numErrorLines))
{
builder.Append(@"<div class=""line error"">")
.AppendFormat(@"<span class=""line-number"">{0}</span><code>", index++)
.Append(HtmlEncodeAndReplaceLineBreaks(line))
.AppendLine("</code></div>");
}
foreach (var line in fileContent.Skip(message.EndLine).Take(NumContextLines))
{
builder.Append(@"<div class=""line faded"">")
.AppendFormat(@"<span class=""line-number"">{0}</span><code>", index++)
.Append(HtmlEncodeAndReplaceLineBreaks(line))
.AppendLine("</code></div>");
}
}
builder.AppendLine("</div>"); // Close codeSnippet div
}
}
// Internal for unit testing
internal CompilationResult GetCompilationFailedResult(
string relativePath,
string compilationContent,
string assemblyName,
IEnumerable<Diagnostic> diagnostics)
{
var diagnosticGroups = diagnostics
.Where(IsError)
.GroupBy(diagnostic => GetFilePath(relativePath, diagnostic), StringComparer.Ordinal);
var failures = new List<CompilationFailure>();
foreach (var group in diagnosticGroups)
{
var sourceFilePath = group.Key;
string sourceFileContent;
if (string.Equals(assemblyName, sourceFilePath, StringComparison.Ordinal))
{
// The error is in the generated code and does not have a mapping line pragma
sourceFileContent = compilationContent;
sourceFilePath = "Generated Code";
}
else
{
sourceFileContent = ReadFileContentsSafely(_fileProvider, sourceFilePath);
}
var compilationFailure = new CompilationFailure(sourceFilePath, sourceFileContent, compilationContent, group.Select(d => d.ToDiagnosticMessage(_environment.RuntimeFramework)));
failures.Add(compilationFailure);
}
return CompilationResult.Failed(failures);
}
// Internal for unit testing
internal CompilationResult GetCompilationFailedResult(RelativeFileInfo file, IEnumerable<RazorError> errors)
{
// If a SourceLocation does not specify a file path, assume it is produced
// from parsing the current file.
var messageGroups = errors
.GroupBy(razorError =>
razorError.Location.FilePath ?? file.RelativePath,
StringComparer.Ordinal);
var failures = new List<CompilationFailure>();
foreach (var group in messageGroups)
{
var filePath = group.Key;
var fileContent = ReadFileContentsSafely(filePath);
var compilationFailure = new CompilationFailure(
filePath,
fileContent,
group.Select(parserError => CreateDiagnosticMessage(parserError, filePath)));
failures.Add(compilationFailure);
}
return CompilationResult.Failed(failures);
}