Add tests for missing cases revealed by code coverage

Author: sharwell

DocumentationAnalyzers/DocumentationAnalyzers.Test/StyleRules/DOC108UnitTests.cs

@@ -40,6 +40,55 @@ class TestClass
             await Verify.VerifyCodeFixAsync(testCode, fixedCode);
         }
 
+        [Fact]
+        public async Task TestEmptySeeElementSeparatesParagraphsAsync()
+        {
+            var testCode = @"
+/// <summary>
+/// Summary 1
+/// <see cref=""TestClass""/>
+/// Summary 2
+/// </summary>
+class TestClass
+{
+}
+";
+
+            await Verify.VerifyAnalyzerAsync(testCode);
+        }
+
+        [Fact]
+        public async Task TestPrefixedParagraphElementSeparatesParagraphsAsync()
+        {
+            var testCode = @"
+/// <summary>
+/// Summary 1
+/// <html:p/>
+/// Summary 2
+/// </summary>
+class TestClass
+{
+}
+";
+
+            await Verify.VerifyAnalyzerAsync(testCode);
+        }
+
+        [Fact]
+        public async Task TestEmptyElementWithMissingNameAsync()
+        {
+            var testCode = @"
+/// <summary>
+/// <
+/// </summary>
+class TestClass
+{
+}
+";
+
+            await Verify.VerifyAnalyzerAsync(testCode);
+        }
+
         [Fact]
         public async Task TestEmptyHtmlParagraphElementSeparatesParagraphsAsync()
         {