NUnit 2.4.5 Legacy Documentation. View NUnit 3 Documentation

Same As Constraint (NUnit 2.4)

A SameAsConstraint is used to test whether the object passed as an actual value has the same identity as the object supplied in its constructor.

Syntax HelperConstructorOperation
Is.SameAs( object )SameAsConstraint( null )tests that two object references refer to the same object

Examples of Use

Exception ex1 = new Exception();
Exception ex2 = ex1;
Assert.That( ex2, Is.SameAs( ex1 ) );

Exception ex3 = new Exception();
Assert.That( ex3, Is.Not.SameAs( ex1 ) );

// Using inheritance
Expect( ex2, SameAs( ex1 ) );
Expect( ex3, Not.SameAs( ex1 ) );