Merge pull request #948 from jkoritzinsky/customize-comp-analyzers-options

Add extension point for creating a CompilationWithAnalyzers object.

src/Microsoft.CodeAnalysis.Testing/Microsoft.CodeAnalysis.Analyzer.Testing/AnalyzerTest`1.cs

@@ -1048,7 +1048,7 @@ namespace Microsoft.CodeAnalysis.Testing
             foreach (var project in solution.Projects)
             {
                 var compilation = await GetProjectCompilationAsync(project, verifier, cancellationToken).ConfigureAwait(false);
-                var compilationWithAnalyzers = compilation.WithAnalyzers(analyzers, GetAnalyzerOptions(project), cancellationToken);
+                var compilationWithAnalyzers = CreateCompilationWithAnalyzers(compilation, analyzers, GetAnalyzerOptions(project), cancellationToken);
                 var allDiagnostics = await compilationWithAnalyzers.GetAllDiagnosticsAsync().ConfigureAwait(false);
 
                 diagnostics.AddRange(allDiagnostics.Where(diagnostic => !IsCompilerDiagnostic(diagnostic) || IsCompilerDiagnosticIncluded(diagnostic, compilerDiagnostics)).Select(diagnostic => (project, diagnostic)));
@@ -1106,6 +1106,17 @@ namespace Microsoft.CodeAnalysis.Testing
         protected virtual AnalyzerOptions GetAnalyzerOptions(Project project)
             => project.AnalyzerOptions;
 
+        /// <summary>
+        /// Combine a compilation with analyzers and options.
+        /// </summary>
+        /// <param name="compilation">The compilation the analyzers will be run on.</param>
+        /// <param name="analyzers">The analyzer to run on the documents.</param>
+        /// <param name="options">The <see cref="AnalyzerOptions"/> for the project.</param>
+        /// <param name="cancellationToken">The <see cref="CancellationToken"/> that the task will observe.</param>
+        /// <returns>A <see cref="CompilationWithAnalyzers"/> object representing the provided compilation, analyzers, and options.</returns>
+        protected virtual CompilationWithAnalyzers CreateCompilationWithAnalyzers(Compilation compilation, ImmutableArray<DiagnosticAnalyzer> analyzers, AnalyzerOptions options, CancellationToken cancellationToken)
+            => compilation.WithAnalyzers(analyzers, options, cancellationToken);
+
         /// <summary>
         /// Given an array of strings as sources and a language, turn them into a <see cref="Project"/> and return the
         /// solution.

src/Microsoft.CodeAnalysis.Testing/Microsoft.CodeAnalysis.Analyzer.Testing/PublicAPI.Unshipped.txt

@@ -333,6 +333,7 @@ static Microsoft.CodeAnalysis.Testing.TestFileMarkupParser.GetSpans(string input
 static Microsoft.CodeAnalysis.Testing.TestFileMarkupParser.GetSpans(string input, out string output, out System.Collections.Immutable.ImmutableDictionary<string, System.Collections.Immutable.ImmutableArray<Microsoft.CodeAnalysis.Text.TextSpan>> spans) -> void
 static readonly Microsoft.CodeAnalysis.Testing.DiagnosticResult.EmptyDiagnosticResults -> Microsoft.CodeAnalysis.Testing.DiagnosticResult[]
 virtual Microsoft.CodeAnalysis.Testing.AnalyzerTest<TVerifier>.ApplyCompilationOptions(Microsoft.CodeAnalysis.Project project) -> Microsoft.CodeAnalysis.Project
+virtual Microsoft.CodeAnalysis.Testing.AnalyzerTest<TVerifier>.CreateCompilationWithAnalyzers(Microsoft.CodeAnalysis.Compilation compilation, System.Collections.Immutable.ImmutableArray<Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzer> analyzers, Microsoft.CodeAnalysis.Diagnostics.AnalyzerOptions options, System.Threading.CancellationToken cancellationToken) -> Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers
 virtual Microsoft.CodeAnalysis.Testing.AnalyzerTest<TVerifier>.CreateProjectImplAsync(Microsoft.CodeAnalysis.Testing.Model.EvaluatedProjectState primaryProject, System.Collections.Immutable.ImmutableArray<Microsoft.CodeAnalysis.Testing.Model.EvaluatedProjectState> additionalProjects, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task<Microsoft.CodeAnalysis.Project>
 virtual Microsoft.CodeAnalysis.Testing.AnalyzerTest<TVerifier>.CreateSolutionAsync(Microsoft.CodeAnalysis.ProjectId projectId, Microsoft.CodeAnalysis.Testing.Model.EvaluatedProjectState projectState, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task<Microsoft.CodeAnalysis.Solution>
 virtual Microsoft.CodeAnalysis.Testing.AnalyzerTest<TVerifier>.CreateWorkspaceImpl() -> Microsoft.CodeAnalysis.Workspace