Added 'Account Custom Nameserver' extensions

test/Extensions/Cloudflare.Dns.Tests/CustomNameserversExtensions/DeleteCustomNameserverTest.cs

@@ -0,0 +1,92 @@
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using AMWD.Net.Api.Cloudflare;
+using AMWD.Net.Api.Cloudflare.Dns;
+using Moq;
+
+namespace Cloudflare.Dns.Tests.CustomNameserversExtensions
+{
+	[TestClass]
+	public class DeleteCustomNameserverTest
+	{
+		private const string AccountId = "023e105f4ecef8ad9ca31a8372d0c353";
+
+		private const string Nameserver = "ns1.example.com";
+
+		private Mock<ICloudflareClient> _clientMock;
+
+		private CloudflareResponse<IReadOnlyCollection<string>> _response;
+
+		private List<(string RequestPath, IQueryParameterFilter QueryFilter)> _callbacks;
+
+		[TestInitialize]
+		public void Initialize()
+		{
+			_callbacks = [];
+
+			_response = new CloudflareResponse<IReadOnlyCollection<string>>
+			{
+				Success = true,
+				Messages = [
+					new ResponseInfo(1000, "Message 1")
+				],
+				Errors = [
+					new ResponseInfo(1000, "Error 1")
+				],
+				Result = []
+			};
+		}
+
+		[TestMethod]
+		public async Task ShouldDeleteCustomNameserver()
+		{
+			// Arrange
+			var client = GetClient();
+
+			// Act
+			var response = await client.DeleteCustomNameserver(AccountId, Nameserver);
+
+			// Assert
+			Assert.IsNotNull(response);
+			Assert.IsTrue(response.Success);
+			Assert.AreEqual(_response.Result, response.Result);
+
+			Assert.AreEqual(1, _callbacks.Count);
+
+			var callback = _callbacks.First();
+			Assert.AreEqual($"/accounts/{AccountId}/custom_ns/{Nameserver}", callback.RequestPath);
+			Assert.IsNull(callback.QueryFilter);
+
+			_clientMock.Verify(m => m.DeleteAsync<IReadOnlyCollection<string>>($"/accounts/{AccountId}/custom_ns/{Nameserver}", null, It.IsAny<CancellationToken>()), Times.Once);
+			_clientMock.VerifyNoOtherCalls();
+		}
+
+		[DataTestMethod]
+		[DataRow(null)]
+		[DataRow("")]
+		[DataRow("   ")]
+		[ExpectedException(typeof(ArgumentNullException))]
+		public async Task ShouldDeleteCustomNameserver(string nameserver)
+		{
+			// Arrange
+			var client = GetClient();
+
+			// Act
+			var response = await client.DeleteCustomNameserver(AccountId, nameserver);
+
+			// Assert - ArgumentNullException
+		}
+
+		private ICloudflareClient GetClient()
+		{
+			_clientMock = new Mock<ICloudflareClient>();
+			_clientMock
+				.Setup(m => m.DeleteAsync<IReadOnlyCollection<string>>(It.IsAny<string>(), It.IsAny<IQueryParameterFilter>(), It.IsAny<CancellationToken>()))
+				.Callback<string, IQueryParameterFilter, CancellationToken>((requestPath, queryFilter, _) => _callbacks.Add((requestPath, queryFilter)))
+				.ReturnsAsync(() => _response);
+
+			return _clientMock.Object;
+		}
+	}
+}