Added test case for verifying SA1402 behaviour for generic classes, interfaces, structs and delegates.

Author: bjornhellander

StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForBlockDeclarationUnitTestsBase.cs

@@ -19,6 +19,37 @@ public abstract class SA1402ForBlockDeclarationUnitTestsBase : FileMayOnlyContai
 
         private bool ConfigureAsNonTopLevelType { get; set; } = false;
 
+        [Fact]
+        public async Task TestTwoGenericElementsAsync()
+        {
+            var testCode = @"%1 Foo<T1>
+{
+}
+%1 Bar<T2, T3>
+{
+}";
+
+            var fixedCode = new[]
+            {
+                @"%1 Foo<T1>
+{
+}
+",
+                @"%1 Bar<T2, T3>
+{
+}"
+            };
+
+            testCode = testCode.Replace("%1", this.Keyword);
+            fixedCode = fixedCode.Select(c => c.Replace("%1", this.Keyword)).ToArray();
+
+            DiagnosticResult expected = this.CSharpDiagnostic().WithLocation(4, this.Keyword.Length + 2);
+
+            await this.VerifyCSharpDiagnosticAsync(testCode, expected, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpDiagnosticAsync(fixedCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpFixAsync(new[] { testCode }, fixedCode, cancellationToken: CancellationToken.None).ConfigureAwait(false);
+        }
+
         [Fact]
         public async Task TestTwoElementsWithRuleDisabledAsync()
         {

StyleCop.Analyzers/StyleCop.Analyzers.Test/MaintainabilityRules/SA1402ForDelegateUnitTests.cs

@@ -46,6 +46,32 @@ public async Task TestTwoElementsAsync()
             await this.VerifyCSharpFixAsync(new[] { testCode }, fixedCode, cancellationToken: CancellationToken.None).ConfigureAwait(false);
         }
 
+        [Fact]
+        public async Task TestTwoGenericElementsAsync()
+        {
+            var testCode = @"public delegate void Foo();
+
+public delegate void Bar<T1, T2, T3>(T1 x, T2 y, T3 z);
+";
+
+            var fixedCode = new[]
+            {
+                @"public delegate void Foo();
+",
+
+                // There should be no leading whitespace here... Why are there?
+                @"
+public delegate void Bar<T1, T2, T3>(T1 x, T2 y, T3 z);
+"
+            };
+
+            DiagnosticResult expected = this.CSharpDiagnostic().WithLocation(3, 22);
+
+            await this.VerifyCSharpDiagnosticAsync(testCode, expected, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpDiagnosticAsync(fixedCode, EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+            await this.VerifyCSharpFixAsync(new[] { testCode }, fixedCode, cancellationToken: CancellationToken.None).ConfigureAwait(false);
+        }
+
         [Fact]
         public async Task TestTwoElementsWithRuleDisabledAsync()
         {