public async Task Is_invalid_when_associated_products_exist_async()
{
var categoryID = 1;
var proxyMock = new Mock <IProductDataProxy>();
proxyMock.Setup(proxy => proxy.GetByCategoryAsync(categoryID))
.Returns(Task.FromResult((new[] { new Product() }).AsEnumerable <Product>()));
var rule = new CanDeleteCategoryRule(categoryID, proxyMock.Object);
await rule.ValidateAsync();
rule.IsValid.ShouldBe(false);
rule.ErrorMessage.ShouldNotBe(null);
}
public async Task Is_invalid_when_associated_products_exist_async()
{
var categoryID = 1;
var proxyMock = new Mock <IProductDataProxy>();
proxyMock.Setup(proxy => proxy.GetByCategoryAsync(categoryID)).Returns(Task.FromResult((new[] { new Product() }).AsEnumerable <Product>()));
var rule = new CanDeleteCategoryRule(categoryID, proxyMock.Object);
await rule.ValidateAsync();
bool isValid = rule.IsValid;
Assert.IsFalse(isValid, "Rule validation result should be TRUE!");
Assert.IsNotNull(rule.ErrorMessage, "Rule Error message should be NULL!");
}