Update SettingsFileCodeFixProviderUnitTests to use GetSettings()

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Test/Settings/SettingsFileCodeFixProviderUnitTests.cs

@@ -19,14 +19,12 @@ namespace StyleCop.Analyzers.Test.Settings
     /// </summary>
     public class SettingsFileCodeFixProviderUnitTests : CodeFixVerifier
     {
-        private const string StyleCopSettingsFileName = "stylecop.json";
         private const string TestCode = @"
 namespace NamespaceName
 {
 }
 ";
 
-        private Project originalProject;
         private bool createSettingsFile;
 
         /// <summary>
@@ -72,27 +70,26 @@ public async Task TestSettingsFileAlreadyExistsAsync()
         }
 
         /// <inheritdoc/>
-        protected override IEnumerable<DiagnosticAnalyzer> GetCSharpDiagnosticAnalyzers()
+        protected override string GetSettings()
         {
-            yield return new FileHeaderAnalyzers();
+            if (this.createSettingsFile)
+            {
+                return "{}";
+            }
+
+            return null;
         }
 
         /// <inheritdoc/>
-        protected override CodeFixProvider GetCSharpCodeFixProvider()
+        protected override IEnumerable<DiagnosticAnalyzer> GetCSharpDiagnosticAnalyzers()
         {
-            return new SettingsFileCodeFixProvider();
+            yield return new FileHeaderAnalyzers();
         }
 
         /// <inheritdoc/>
-        protected override Project CreateProject(string[] sources, string language = LanguageNames.CSharp, string[] filenames = null)
+        protected override CodeFixProvider GetCSharpCodeFixProvider()
         {
-            this.originalProject = base.CreateProject(sources, language, filenames);
-            if (this.createSettingsFile)
-            {
-                this.originalProject = this.originalProject.AddAdditionalDocument(StyleCopSettingsFileName, string.Empty).Project;
-            }
-
-            return this.originalProject;
+            return new SettingsFileCodeFixProvider();
         }
     }
 }