NUnit.Framework.Assert.IsInstanceOfType() is obsolete

Question

I'm currently reading the book Professional Enterprise .NET and I've noticed this warning in some of the example programs:

'NUnit.Framework.Assert.IsInstanceOfType(System.Type, object)' is obsolete

Now I may have already answered my own question but, to fix this warning is it simply a case of replacing Assert.IsInstanceOfType() with Assert.IsInstanceOf()? For example this:

Assert.IsInstanceOfType(typeof(ClassName), variableName);

would become:

Assert.IsInstanceOf(typeof(ClassName), variableName);

Mark Byers · Accepted Answer · 2010-04-17 13:10:24Z

141

From the NUnit documentation the IsInstanceOf method is a generic method so you would use this:

Assert.IsInstanceOf<ClassName>(variableName);

edited Apr 17, 2010 at 13:10

answered Apr 17, 2010 at 13:00

Mark Byers

844k202 gold badges1.6k silver badges1.5k bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Peter Lillevold · Accepted Answer · 2010-04-17 22:13:19Z

For completeness: if you use the constraint model:

Assert.That(variableName, Is.InstanceOf<ClassName>());

or your test class inherits AssertionHelper:

Expect(variableName, InstanceOf<ClassName>());

Aref Karimi · Accepted Answer · 2025-01-15 01:18:38Z

If anyone has the same issue after upgrading to NUnit 4, the correct syntax is:

Assert.That(object, Is.InstanceOf());

Collectives™ on Stack Overflow

NUnit.Framework.Assert.IsInstanceOfType() is obsolete

3 Answers 3

Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

Comments

Related