/// <summary>
/// Called to test a C# codefix when applied on the inputted string as a source
/// </summary>
/// <param name="oldSource">A class in the form of a string before the CodeFix was applied to it</param>
/// <param name="newSource">A class in the form of a string after the CodeFix was applied to it</param>
/// <param name="codeFixIndex">Index determining which codefix to apply if there are multiple</param>
/// <param name="allowNewCompilerDiagnostics">A bool controlling whether or not the test will fail if the CodeFix introduces other warnings after being applied</param>
protected void VerifyFix(
string oldSource,
string newSource,
int?codeFixIndex = null,
bool allowNewCompilerDiagnostics = false)
{
var result = _codeFixProvider.VerifyFix(
language: LanguageNames.CSharp,
analyzer: _diagnosticAnalyzer,
oldSource: oldSource,
newSource: newSource,
codeFixIndex: codeFixIndex,
allowNewCompilerDiagnostics: allowNewCompilerDiagnostics);
if (result.Success)
{
return;
}
if (string.IsNullOrEmpty(result.ErrorMessage))
{
result.NewSource.ShouldBe(result.ActualSource);
}
else
{
result.Success.ShouldBeTrue(result.ErrorMessage);
}
}