public void InputWithIncident_MemberAccesses_SurfacesDiagnostic(string accessedInstance)
{
var test = $@"using FakeNamespace;
namespace SampleTestProject.CsSamples
{{
public class SampleClass
{{
public void SampleMethod()
{{
var instance = new FakeClass();
var a1 = {accessedInstance}.FakeMethod();
var a2 = {accessedInstance}?.FakeMethod();
var b1 = {accessedInstance}.FakeMethod().Substring(0);
var b2 = {accessedInstance}.FakeMethod()?.Substring(0);
var b3 = {accessedInstance}?.FakeMethod().Substring(0);
var b4 = {accessedInstance}?.FakeMethod()?.Substring(0);
}}
}}
}}";
var sources = new[] { test, _fakeClassSource };
var documents = ProjectCompilation.GetDocuments(sources, null, null);
var analyzer = CSharpDiagnosticAnalyzer;
var diagnostics = AnalyzerExecution.GetSortedDiagnosticsFromDocuments(analyzer, documents);
Assert.AreEqual(6, diagnostics.Length);
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(9, 22), diagnostics.ElementAt(0));
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(10, 22), diagnostics.ElementAt(1));
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(12, 22), diagnostics.ElementAt(2));
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(13, 22), diagnostics.ElementAt(3));
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(14, 22), diagnostics.ElementAt(4));
AssertBestEfforDiagnostic(analyzer, CreateDiagnosticResult(string.Empty).WithMessage(".FakeMethod()").WithLocation(15, 22), diagnostics.ElementAt(5));
}
/// <summary>
/// General method that gets a collection of actual diagnostics found in the source after the analyzer is run,
/// then verifies each of them.
/// </summary>
/// <param name="sources">An array of strings to create source documents from to run the analyzers on</param>
/// <param name="analyzer">The analyzer to be run on the source code</param>
/// <param name="references">An array of additional metadata references, source files are dependent on</param>
/// <param name="fakeFileInfo">Fake file info generated files should have</param>
/// <param name="expected">DiagnosticResults that should appear after the analyzer is run on the sources</param>
private static void VerifyDiagnostics(string[] sources, DiagnosticAnalyzer analyzer, MetadataReference[] references, FakeFileInfo fakeFileInfo = null, params DiagnosticResult[] expected)
{
var documents = ProjectCompilation.GetDocuments(sources, references, fakeFileInfo);
var diagnostics = AnalyzerExecution.GetSortedDiagnosticsFromDocuments(analyzer, documents);
VerifyDiagnosticResults(diagnostics, analyzer, expected);
}