public void NoConstraintGenericWithStringType_AndMethodWithNullArgument()
{
var instance = new GenericsSample.NoConstraint <string>();
Action act = () => instance.Method(null /*Expect:AssignNullToNotNullAttribute[MIn]*/);
act.ShouldThrow <ArgumentNullException>().And.ParamName.Should().Be("a");
}
public void NoConstraintGenericWithDateTimeType_AndMethodWithDefaultOfTArgument()
{
var instance = new GenericsSample.NoConstraint <DateTime>();
Action act = () => instance.Method(default(DateTime));
act.ShouldNotThrow("the argument check should not perform a 'param == default(T)' comparison");
}
public void NoConstraintGenericWithNullableIntType_AndMethodWithNullArgument()
{
var instance = new GenericsSample.NoConstraint <int?>();
Action act = () => instance.Method(null /*Expect:AssignNullToNotNullAttribute[MIn]*/);
act.ShouldThrow <ArgumentNullException>(
"known issue for generics without constraint (it's a trade-off between this false positive and a false-negative if T is a reference type")
.And.ParamName.Should().Be("a");
}