public void ParseAndValidate(string text, CSharpParseOptions options, ErrorDescription[] errors = null)
{
var parsedTree = ParseTree(text, options);
var parsedText = parsedTree.GetCompilationUnitRoot();
// we validate the text roundtrips
Assert.Equal(text, parsedText.ToFullString());
// get all errors
var actualErrors = parsedTree.GetDiagnostics(parsedText);
if (errors == null || errors.Length == 0)
{
Assert.Empty(actualErrors);
}
else
{
DiagnosticsUtils.VerifyErrorCodes(actualErrors, errors);
}
}
private static CSharpCompilation CompileAndVerifyDiagnostics(string text1, string text2, ErrorDescription[] expectedErrors1, ErrorDescription[] expectedErrors2)
{
var comp1 = CompileAndVerifyDiagnostics(text1, expectedErrors1);
var comp2 = CompileAndVerifyDiagnostics(text2, expectedErrors2, comp1);
return comp2;
}
private static CSharpCompilation CompileAndVerifyDiagnostics(string text, ErrorDescription[] expectedErrors, params CSharpCompilation[] baseCompilations)
{
var refs = new List<MetadataReference>(baseCompilations.Select(c => new CSharpCompilationReference(c)));
var comp = CreateCompilationWithMscorlib(text, refs);
var actualErrors = comp.GetDiagnostics();
//ostensibly, we could just pass exactMatch: true to VerifyErrorCodes, but that method is short-circuited when 0 errors are expected
Assert.Equal(expectedErrors.Length, actualErrors.Count());
DiagnosticsUtils.VerifyErrorCodes(actualErrors, expectedErrors);
return comp;
}
