StringAssert

The StringAssert class provides a number of methods that are useful when examining string values.

StringAssert is in the NUnit.Framework namespace, so using NUnit.Framework; is enough. It ships in nunit.framework.legacy.dll, which is part of the NUnit package.

Note

In NUnit 4, StringAssert was in the NUnit.Framework.Legacy namespace and needed using NUnit.Framework.Legacy;.

StringAssert.Contains(string expected, string actual);
StringAssert.Contains(string expected, string actual,
                      string message, params object[] args);

StringAssert.DoesNotContain(string expected, string actual);
StringAssert.DoesNotContain(string expected, string actual,
                            string message, params object[] args);

StringAssert.StartsWith(string expected, string actual);
StringAssert.StartsWith(string expected, string actual,
                        string message, params object[] args);

StringAssert.DoesNotStartWith(string expected, string actual);
StringAssert.DoesNotStartWith(string expected, string actual,
                               string message, params object[] args);

StringAssert.EndsWith(string expected, string actual);
StringAssert.EndsWith(string expected, string actual,
                      string message, params object[] args);

StringAssert.DoesNotEndWith(string expected, string actual);
StringAssert.DoesNotEndWith(string expected, string actual,
                            string message, params object[] args);

StringAssert.AreEqualIgnoringCase(string expected, string actual);
StringAssert.AreEqualIgnoringCase(string expected, string actual,
                                  string message params object[] args);

StringAssert.AreNotEqualIgnoringCase(string expected, string actual);
StringAssert.AreNotEqualIgnoringCase(string expected, string actual,
                                     string message params object[] args);

StringAssert.IsMatch(string regexPattern, string actual);
StringAssert.IsMatch(string regexPattern, string actual,
                    string message, params object[] args);

StringAssert.DoesNotMatch(string regexPattern, string actual);
StringAssert.DoesNotMatch(string regexPattern, string actual,
                          string message, params object[] args);

// Functions below are available in NUnit 4.5 and later
StringAssert.IsNullOrEmpty(string? actual);
StringAssert.IsNullOrEmpty(string? actual,
                           string message, params object[] args);

StringAssert.IsNotNullNorEmpty(string? actual);
StringAssert.IsNotNullNorEmpty(string? actual,
                               string message, params object[] args);

StringAssert.IsNullOrWhiteSpace(string? actual);
StringAssert.IsNullOrWhiteSpace(string? actual,
                                string message, params object[] args);

StringAssert.IsNotNullNorWhiteSpace(string? actual);
StringAssert.IsNotNullNorWhiteSpace(string? actual,
                                    string message, params object[] args);

StringAssert

Note

See Also