public void Adding_Another_Generator_Makes_TryApplyEdits_Fail()
{
var source = @"
class C { }
";
var parseOptions = TestOptions.Regular;
Compilation compilation = CreateCompilation(source, options: TestOptions.DebugDll, parseOptions: parseOptions);
compilation.VerifyDiagnostics();
Assert.Single(compilation.SyntaxTrees);
SingleFileTestGenerator testGenerator1 = new SingleFileTestGenerator("public class D { }");
SingleFileTestGenerator2 testGenerator2 = new SingleFileTestGenerator2("public class E { }");
GeneratorDriver driver = new CSharpGeneratorDriver(parseOptions,
generators: ImmutableArray.Create <ISourceGenerator>(testGenerator1),
optionsProvider: CompilerAnalyzerConfigOptionsProvider.Empty,
additionalTexts: ImmutableArray <AdditionalText> .Empty);
driver = driver.RunFullGeneration(compilation, out var outputCompilation, out _);
Assert.Equal(2, outputCompilation.SyntaxTrees.Count());
// try apply edits
driver = driver.TryApplyEdits(compilation, out _, out bool success);
Assert.True(success);
// add another generator
driver = driver.AddGenerators(ImmutableArray.Create <ISourceGenerator>(testGenerator2));
// try apply changes should now fail
driver = driver.TryApplyEdits(compilation, out _, out success);
Assert.False(success);
// full generation
driver = driver.RunFullGeneration(compilation, out outputCompilation, out _);
Assert.Equal(3, outputCompilation.SyntaxTrees.Count());
// try apply changes should now succeed
driver.TryApplyEdits(compilation, out _, out success);
Assert.True(success);
}
