And Constraint
AndConstraint
combines two other constraints and succeeds only if they both succeed.
Constructor
AndConstraint(Constraint left, Constraint right)
Syntax
<Constraint>.And.<Constraint>
Examples of Use
Assert.That(2.3, Is.GreaterThan(2.0).And.LessThan(3.0));
Evaluation Order and Precedence
Note that the constraint evaluates the sub-constraints left to right, meaning that Assert.That(i, Is.Not.Null.And.GreaterThan(9));
where i
is a nullable int
will work for 10
, but fail for null
with the message
Expected: not null and greater than 9. But was: null
. Assert.That(i, Is.GreaterThan(9).And.Not.Null);
will also
succeed for 10
, but throw an exception for null
, as null
cannot be compared to 9
.
The OrConstraint has precedence over the AndConstraint.