public void Seed_ValidOptions_Ok()
        {
            CategoriesPartSeeder seeder = new CategoriesPartSeeder();

            seeder.SetSeedOptions(_seedOptions);
            seeder.Configure(new CategoriesPartSeederOptions
            {
                MaxCategoriesPerItem = 3,
                Categories           = new[]
                {
                    "alpha",
                    "beta",
                    "gamma"
                }
            });

            IPart part = seeder.GetPart(_item, null, _factory);

            Assert.NotNull(part);

            CategoriesPart cp = part as CategoriesPart;

            Assert.NotNull(cp);

            TestHelper.AssertPartMetadata(cp);
            Assert.NotEmpty(cp.Categories);
        }
        public void Seed_NoCategories_Null()
        {
            CategoriesPartSeeder seeder = new CategoriesPartSeeder();

            seeder.SetSeedOptions(_seedOptions);
            seeder.Configure(new CategoriesPartSeederOptions
            {
                MaxCategoriesPerItem = 3,
                Categories           = Array.Empty <string>() // invalid
            });

            Assert.Null(seeder.GetPart(_item, null, _factory));
        }
        public void Seed_InvalidMax_Null()
        {
            CategoriesPartSeeder seeder = new CategoriesPartSeeder();

            seeder.SetSeedOptions(_seedOptions);
            seeder.Configure(new CategoriesPartSeederOptions
            {
                MaxCategoriesPerItem = 0,   // invalid
                Categories           = new[]
                {
                    "alpha",
                    "beta",
                    "gamma"
                }
            });

            Assert.Null(seeder.GetPart(_item, null, _factory));
        }