// var in C# means have compiler determine type from right part of statement. So 'string x = "abc";' and 'var x = "abc";' are exactly the same
public void TestWithVar()
{
// can't do this as var variables HAVE have a right assignment for compiler to determine type (uncomment to see)
// so by using var it avoids nulls in one case
//var c2;
var c2 = new SomeReallyLongClassNameThatIsDescriptive();
Assert.NotNull(c2);
Assert.IsType <SomeReallyLongClassNameThatIsDescriptive>(c2);
}
public void TestWithoutVar()
{
// this is the dangerous one to do. c1 is null here (why var is used and nullable was added to project type)
SomeReallyLongClassNameThatIsDescriptive c1 = null;
// have to assign to null because compiler wont allow you to use an unassigned variable
Assert.Null(c1);
// can't test type here because variable is null (uncomment to see)
//Assert.IsType<SomeReallyLongClassNameThatIsDescriptive>(c1);
c1 = new SomeReallyLongClassNameThatIsDescriptive();
// because you never assigned to Str1 and Int1 both null (you get compiler warnings)
Assert.NotNull(c1);
Assert.IsType <SomeReallyLongClassNameThatIsDescriptive>(c1);
}
