chore: Add TrimNewlines() string extension method

src/Common.Tests/Extensions/StringExtensionsTest.cs

@@ -0,0 +1,22 @@
+using Common.Extensions;
+using FluentAssertions;
+using NUnit.Framework;
+
+namespace Common.Tests.Extensions;
+
+[TestFixture]
+[Parallelizable(ParallelScope.All)]
+public class StringExtensionsTest
+{
+    [Test]
+    public void Carriage_returns_and_newlines_are_stripped_from_front_and_back()
+    {
+        "\r\ntest\n\r".TrimNewlines().Should().Be("test");
+    }
+
+    [Test]
+    public void Spaces_are_ignored_when_stripping_newlines()
+    {
+        "\n test \r".TrimNewlines().Should().Be(" test ");
+    }
+}

src/Common/Extensions/StringExtensions.cs

@@ -29,4 +29,9 @@ public static class StringExtensions
     {
         return string.Format(value, args);
     }
+
+    public static string TrimNewlines(this string value)
+    {
+        return value.Trim('\r', '\n');
+    }
 }

src/TestLibrary/StringUtils.cs

@@ -1,6 +1,8 @@
-namespace TestLibrary;
+using Common.Extensions;
+
+namespace TestLibrary;
 
 public static class StringUtils
 {
-    public static string TrimmedString(string value) => value.Trim('\r', '\n');
+    public static string TrimmedString(string value) => value.TrimNewlines();
 }