protected static void AnalyzeWithRule <T>(string input, string ruleId, string output = null, int issueToFix = -1, int actionToRun = 0, Action <int, Diagnostic> diagnosticCheck = null) where T : DiagnosticAnalyzer, new()
{
var text = new StringBuilder();
var expectedDiagnosics = new List <TextSpan> ();
int start = -1;
for (int i = 0; i < input.Length; i++)
{
char ch = input [i];
if (ch == '$')
{
if (start < 0)
{
start = text.Length;
continue;
}
expectedDiagnosics.Add(TextSpan.FromBounds(start, text.Length));
start = -1;
}
else
{
text.Append(ch);
}
}
var syntaxTree = CSharpSyntaxTree.ParseText(text.ToString());
Compilation compilation = CreateCompilationWithMscorlib(new [] { syntaxTree });
var diagnostics = new List <Diagnostic>();
var compilationWithAnalyzers = compilation.WithAnalyzers(System.Collections.Immutable.ImmutableArray <DiagnosticAnalyzer> .Empty.Add(new T()));
diagnostics.AddRange(compilationWithAnalyzers.GetAnalyzerDiagnosticsAsync().Result);
if (expectedDiagnosics.Count != diagnostics.Count)
{
Console.WriteLine("Diagnostics: " + diagnostics.Count);
foreach (var diag in diagnostics)
{
Console.WriteLine(diag.Id + "/" + diag.GetMessage());
}
Assert.Fail("Diagnostic count mismatch expected: " + expectedDiagnosics.Count + " but was:" + diagnostics.Count);
}
for (int i = 0; i < expectedDiagnosics.Count; i++)
{
var d = diagnostics [i];
var wholeSpan = GetWholeSpan(d);
if (wholeSpan != expectedDiagnosics [i])
{
Assert.Fail("Diagnostic " + i + " span mismatch expected: " + expectedDiagnosics[i] + " but was " + wholeSpan);
}
if (diagnosticCheck != null)
{
diagnosticCheck(i, d);
}
}
if (output == null)
{
return;
}
var workspace = new TestWorkspace();
var projectId = ProjectId.CreateNewId();
var documentId = DocumentId.CreateNewId(projectId);
workspace.Open(ProjectInfo.Create(
projectId,
VersionStamp.Create(),
"", "", LanguageNames.CSharp, null, null, null, null,
new [] {
DocumentInfo.Create(
documentId,
"a.cs",
null,
SourceCodeKind.Regular,
TextLoader.From(TextAndVersion.Create(SourceText.From(text.ToString()), VersionStamp.Create())))
}
));
if (issueToFix < 0)
{
diagnostics.Reverse();
foreach (var v in diagnostics)
{
RunFix(workspace, projectId, documentId, v);
}
}
else
{
RunFix(workspace, projectId, documentId, diagnostics.ElementAt(issueToFix), actionToRun);
}
var txt = workspace.CurrentSolution.GetProject(projectId).GetDocument(documentId).GetTextAsync().Result.ToString();
if (output != txt)
{
Console.WriteLine("expected:");
Console.WriteLine(output);
Console.WriteLine("got:");
Console.WriteLine(txt);
Assert.Fail();
}
}
protected static void Analyze <T>(Func <string, SyntaxTree> parseTextFunc, Func <SyntaxTree[], Compilation> createCompilationFunc, string language, string input, string output = null, int issueToFix = -1, int actionToRun = 0, Action <int, Diagnostic> diagnosticCheck = null) where T : DiagnosticAnalyzer, new()
{
var text = new StringBuilder();
var expectedDiagnosics = new List <TextSpan>();
int start = -1;
for (int i = 0; i < input.Length; i++)
{
char ch = input[i];
if (ch == '$' && ((i > 0) && (input[i - 1] == '$')))
{
// Ignore 2nd "$" in "$$"
}
else if (ch == '$' && (i + 1 >= input.Length || input[i + 1] != '$'))
{
if (start < 0)
{
start = text.Length;
continue;
}
expectedDiagnosics.Add(TextSpan.FromBounds(start, text.Length));
start = -1;
}
else
{
text.Append(ch);
}
}
var syntaxTree = parseTextFunc(text.ToString());
Compilation compilation = createCompilationFunc(new[] { syntaxTree });
var diagnostics = new List <Diagnostic>();
var compilationWithAnalyzers = compilation.WithAnalyzers(System.Collections.Immutable.ImmutableArray <DiagnosticAnalyzer> .Empty.Add(new T()));
var result = compilationWithAnalyzers.GetAnalyzerDiagnosticsAsync().Result;
diagnostics.AddRange(result);
diagnostics.Sort((d1, d2) => d1.Location.SourceSpan.Start.CompareTo(d2.Location.SourceSpan.Start));
expectedDiagnosics.Sort((d1, d2) => d1.Start.CompareTo(d2.Start));
if (expectedDiagnosics.Count != diagnostics.Count)
{
foreach (var diag in diagnostics)
{
Console.WriteLine(diag.Id + "/" + diag.GetMessage() + "/" + diag.Location.SourceSpan);
}
Assert.Fail("Diagnostic count mismatch expected: " + expectedDiagnosics.Count + " was " + diagnostics.Count);
}
for (int i = 0; i < expectedDiagnosics.Count; i++)
{
var d = diagnostics[i];
var wholeSpan = GetWholeSpan(d);
if (wholeSpan != expectedDiagnosics[i])
{
Assert.Fail("Diagnostic " + i + " span mismatch expected: " + expectedDiagnosics[i] + " but was " + wholeSpan);
}
if (diagnosticCheck != null)
{
diagnosticCheck(i, d);
}
}
if (output == null)
{
return;
}
var workspace = new TestWorkspace();
var projectId = ProjectId.CreateNewId();
var documentId = DocumentId.CreateNewId(projectId);
workspace.Open(ProjectInfo.Create(
projectId,
VersionStamp.Create(),
"a", "a.exe", language, null, null, null, null,
new[] {
DocumentInfo.Create(
documentId,
"a.cs",
null,
SourceCodeKind.Regular,
TextLoader.From(TextAndVersion.Create(SourceText.From(text.ToString()), VersionStamp.Create())))
}
));
if (issueToFix < 0)
{
diagnostics.Reverse();
foreach (var v in diagnostics)
{
RunFix(workspace, projectId, documentId, v);
}
}
else
{
RunFix(workspace, projectId, documentId, diagnostics.ElementAt(issueToFix), actionToRun);
}
var txt = workspace.CurrentSolution.GetProject(projectId).GetDocument(documentId).GetTextAsync().Result.ToString();
output = Utils.HomogenizeEol(output);
txt = Utils.HomogenizeEol(txt);
if (output != txt)
{
Console.WriteLine("expected:");
Console.WriteLine(output);
Console.WriteLine("got:");
Console.WriteLine(txt);
Console.WriteLine("-----Mismatch:");
for (int i = 0; i < txt.Length; i++)
{
if (i >= output.Length)
{
Console.Write("#");
continue;
}
if (txt[i] != output[i])
{
Console.Write("#");
continue;
}
Console.Write(txt[i]);
}
Assert.Fail();
}
}