private static void TestCanNotFix(string codeSnippet)
{
var expressionSyntax = SyntaxFactory.ParseExpression(codeSnippet);
var memberAccessExpressionSyntax = expressionSyntax.DescendantNodesAndSelf().OfType <MemberAccessExpressionSyntax>().First();
var result = DefaulIfNullExpressionHelper.CanFix(memberAccessExpressionSyntax);
Assert.IsFalse(result);
}
private static void TestFix(string codeSnippet, string expectedResult)
{
var expressionSyntax = SyntaxFactory.ParseExpression(codeSnippet);
var memberAccessExpressionSyntax = expressionSyntax.DescendantNodesAndSelf().OfType <MemberAccessExpressionSyntax>().First();
var canFix = DefaulIfNullExpressionHelper.CanFix(memberAccessExpressionSyntax);
Assert.IsTrue(canFix);
var resultSyntax = DefaulIfNullExpressionHelper.CreateRelacementNode((InvocationExpressionSyntax)expressionSyntax);
var resultSTring = resultSyntax.ToFullString();
Assert.AreEqual(expectedResult, resultSTring);
}