c# - c# - Asserting with OR condition

Question

i am checking a string for three characters

Assert.AreEqual(myString.Substring(3,3), "DEF", "Failed as DEF  was not observed");

the thing is here it can be DEF or RES, now to handle this what i can think of is the following

bool check = false;
if( myString.Substring(3,3) == "DEF" || myString.Substring(3,3) == "RED" ) 
check = true;

Assert.IsTrue(check,"Failed");
Console.WriteLine(""Passed);

IS THERE a way i can use some OR thing within Assert

p.s i'm writing unit test & yes i will use ternary operator instead....

Answer 1

Assert.IsTrue((myString.Substring(3,3) == "DEF" || myString.Substring(3,3) == "RED")?true:false,"Failed");

Answer 2

使用 NUnit，AnyOf 约束有效：

Assert.That(myString.Substring(3,3), Is.AnyOf("DEF", "RED"));

Answer 3

根据您使用的单元测试框架，您可以执行以下操作：

Assert.Contains(myString.Substring(3, 3), new [] { "DEF", "RED" });

但请注意，这有点滥用系统，因为它切换了预期和实际。

应该与任何框架一起使用并且不会滥用系统的替代方法如下所示：

Assert.True(new [] { "DEF", "RED" }.Contains(myString.Substring(3, 3)));