Added additional tests to capture various input values to Parse()

Author: jpdillingham

Utility.CommandLine.Arguments.Tests/Arguments.cs

@@ -207,7 +207,7 @@ public void ParseDashedOperand()
         [Fact]
         public void ParseEmpty()
         {
-            Exception ex = Record.Exception(() => CommandLine.Arguments.Parse());
+            Exception ex = Record.Exception(() => CommandLine.Arguments.Parse(string.Empty));
 
             Assert.Null(ex);
         }
@@ -270,6 +270,17 @@ public void ParseMultipleQuotes()
             Assert.Equal("4", test["test4"]);
         }
 
+        /// <summary>
+        ///     Tests the <see cref="Utility.CommandLine.Arguments.Parse(string)"/> method with no argument.
+        /// </summary>
+        [Fact]
+        public void ParseNoArgument()
+        {
+            Exception ex = Record.Exception(() => CommandLine.Arguments.Parse());
+
+            Assert.Null(ex);
+        }
+
         /// <summary>
         ///     Tests the <see cref="Utility.CommandLine.Arguments.Parse(string)"/> method with a null argument.
         /// </summary>