Added TryGetHexString tests.

Author: KN4CK3R

ReClass.NET/Extensions/StringExtensions.cs

@@ -97,10 +97,12 @@ public static string LimitLength(this string s, int length)
 			return s.Substring(0, length);
 		}
 
-		private static readonly Regex HexRegex = new Regex("(0x|h)?([0-9A-F]+)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
+		private static readonly Regex hexadecimalValueRegex = new Regex("^(0x|h)?([0-9A-F]+)$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
 		public static bool TryGetHexString(this string s, out string value)
 		{
-			var match = HexRegex.Match(s);
+			Contract.Requires(s != null);
+
+			var match = hexadecimalValueRegex.Match(s);
 			value = match.Success ? match.Groups[2].Value : null;
 
 			return match.Success;

ReClass.NET_Tests/Extensions/StringExtensionTest.cs

@@ -146,5 +146,24 @@ public void TestIsNotLikelyPrintableData(params char[] sut)
 		{
 			Check.That(sut.IsPrintableData()).IsFalse();
 		}
+
+		[Theory]
+		[InlineData("", false, null)]
+		[InlineData("-", false, null)]
+		[InlineData("-0", false, null)]
+		[InlineData("-0x0", false, null)]
+		[InlineData("-h0", false, null)]
+		[InlineData("0", true, "0")]
+		[InlineData("h0", true, "0")]
+		[InlineData("0x0", true, "0")]
+		[InlineData("0123456789abcdef", true, "0123456789abcdef")]
+		[InlineData("h0123456789abcdef", true, "0123456789abcdef")]
+		[InlineData("0x0123456789abcdef", true, "0123456789abcdef")]
+		[InlineData("0123456789ABCDEF", true, "0123456789ABCDEF")]
+		public void TestTryGetHexString(string input, bool expectedResult, string expectedValue)
+		{
+			Check.That(input.TryGetHexString(out var value)).IsEqualTo(expectedResult);
+			Check.That(value).IsEqualTo(expectedValue);
+		}
 	}
 }