<PackageReference Include="NUnit" Version="4.1.0" />

EndsWithConstraint

EndsWithConstraint can test whether a string ends with an expected substring.
using System; using System.Runtime.CompilerServices; namespace NUnit.Framework.Constraints { [System.Runtime.CompilerServices.NullableContext(1)] [System.Runtime.CompilerServices.Nullable(0)] public class EndsWithConstraint : StringConstraint { public EndsWithConstraint(string expected) : base(expected) { descriptionText = "String ending with"; } protected override bool Matches(string actual) { StringComparison comparisonType = caseInsensitive ? StringComparison.CurrentCultureIgnoreCase : StringComparison.CurrentCulture; return actual?.EndsWith(expected, comparisonType) ?? false; } } }