public void Throw_exception_if_existsin_was_initialised_with_null_name_or_value_properties(string valueProperty, string nameProperty)
{
const string listProperty = "List";
var vm = new ViewModelExample();
var validationContext = new ValidationContext(vm, null, null);
var attribute = new ExistsInAttribute(listProperty, valueProperty, nameProperty);
Assert.Throws <ArgumentException>(
() => attribute.GetValidationResult(vm.ListId, validationContext),
"ExistsIn: You must pass valid properties for Name and Value to ExistsIn"
);
}
public void Throw_exception_if_property_to_validate_against_is_not_an_ienumerable()
{
const string valueProperty = "Id";
const string nameProperty = "Name";
const string listProperty = "Decimal";
var vm = new ViewModelExample();
var validationContext = new ValidationContext(vm, null, null);
var attribute = new ExistsInAttribute(listProperty, valueProperty, nameProperty);
Assert.Throws <ArgumentException>(
() => attribute.GetValidationResult(vm.ListId, validationContext),
string.Format("ExistsIn: No property Model.{0} exists for validation.", valueProperty)
);
}
public void Throw_exception_if_list_to_validate_against_does_not_exist()
{
const string valueProperty = "Id";
const string nameProperty = "Name";
const string listProperty = "List2";
const string memberName = "MyListInput";
var vm = new ViewModelExample();
var validationContext = new ValidationContext(vm, null, null)
{
MemberName = memberName
};
var attribute = new ExistsInAttribute(listProperty, valueProperty, nameProperty);
var ex = Assert.Throws <ArgumentException>(() => attribute.GetValidationResult(vm.ListId, validationContext));
Assert.That(ex.Message, Is.EqualTo(string.Format("ExistsIn: No property Model.{0} exists for looking up values for property Model.{1}.", listProperty, memberName)));
}
public void Throw_exception_if_list_to_validate_against_does_not_contain_specified_name_property()
{
const string valueProperty = "Id";
const string nameProperty = "Name2";
const string listProperty = "List";
var vm = new ViewModelExample();
var validationContext = new ValidationContext(vm, null, null)
{
MemberName = listProperty
};
var attribute = new ExistsInAttribute(listProperty, valueProperty, nameProperty);
var collectionType = vm.GetType().GetProperty(listProperty).PropertyType.GetGenericArguments().FirstOrDefault();
var ex = Assert.Throws <ArgumentException>(() => attribute.GetValidationResult(vm.ListId, validationContext));
Assert.That(ex.Message,
Is.EqualTo(string.Format("ExistsIn: No property {0} exists for type {1} to look up possible values for property Model.{2}.", nameProperty, collectionType.Name, listProperty)
));
}
public void Throw_exception_if_list_to_validate_against_is_null()
{
const string valueProperty = "Id";
const string nameProperty = "Name";
const string listProperty = "List";
const string memberName = "MyListInput";
var vm = new ViewModelExample
{
List = null
};
var validationContext = new ValidationContext(vm, null, null)
{
MemberName = memberName
};
var attribute = new ExistsInAttribute(listProperty, valueProperty, nameProperty);
var ex = Assert.Throws <ListPropertyNullException>(() => attribute.GetValidationResult(vm.ListId, validationContext));
Assert.That(ex.Message, Is.EqualTo(
string.Format("The list property ({0}) specified in the [ExistsIn] on {1} is null.", listProperty, memberName)
));
}
