StringAssert.That Property
Definition
Important
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Gets the singleton instance of the CollectionAssert functionality.
public static Microsoft.VisualStudio.TestTools.UnitTesting.StringAssert That { get; }static member That : Microsoft.VisualStudio.TestTools.UnitTesting.StringAssertPublic Shared ReadOnly Property That As StringAssertProperty Value
Remarks
Users can use this to plug-in custom assertions through C# extension methods. For instance, the signature of a custom assertion provider could be "public static void ContainsWords(this StringAssert customAssert, string value, ICollection substrings)" Users could then use a syntax similar to the default assertions which in this case is "StringAssert.That.ContainsWords(value, substrings);" More documentation is at "https://github.com/Microsoft/testfx/docs/README.md".