Added tests to improve coverage in SA1013 (ClosingCurlyBracketsMustBeSpacedCorrectly)

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Test/SpacingRules/SA1013UnitTests.cs

@@ -6,6 +6,7 @@ namespace StyleCop.Analyzers.Test.SpacingRules
     using System.Collections.Generic;
     using System.Threading;
     using System.Threading.Tasks;
+    using Microsoft.CodeAnalysis;
     using Microsoft.CodeAnalysis.CodeFixes;
     using Microsoft.CodeAnalysis.Diagnostics;
     using StyleCop.Analyzers.SpacingRules;
@@ -384,6 +385,28 @@ public async Task TestEndOfFileWithoutNewLineAsync(string declarationType)
             await this.VerifyCSharpDiagnosticAsync(testCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
         }
 
+        [Fact]
+        public async Task TestMissingTokenAsync()
+        {
+            string testCode = @"
+class ClassName
+{
+";
+
+            DiagnosticResult[] expected =
+            {
+                new DiagnosticResult
+                {
+                    Id = "CS1513",
+                    Severity = DiagnosticSeverity.Error,
+                    Message = "} expected",
+                    Locations = new[] { new DiagnosticResultLocation("Test0.cs", 3, 2) }
+                }
+            };
+
+            await this.VerifyCSharpDiagnosticAsync(testCode, expected, CancellationToken.None).ConfigureAwait(false);
+        }
+
         /// <inheritdoc/>
         protected override IEnumerable<DiagnosticAnalyzer> GetCSharpDiagnosticAnalyzers()
         {