test: assert the order of events

Author: doghappy

src/SocketIOClient.UnitTest/SocketIOTests/ConnectTest.cs

@@ -2,6 +2,7 @@
 using Moq;
 using SocketIOClient.WebSocketClient;
 using System;
+using System.Collections.Generic;
 using System.Net.WebSockets;
 using System.Threading.Tasks;
 
@@ -65,14 +66,21 @@ public async Task TestException()
         [TestMethod]
         public async Task TestAttempsEq1()
         {
+            using var io = new SocketIO("http://example.com");
+            var list = new List<string>();
+
             var mockSocket = new Mock<IWebSocketClient>();
             mockSocket.Setup(x => x.ConnectAsync(It.IsAny<Uri>())).Throws(new TimeoutException());
 
             var mockReconnectAttemp = new Mock<EventHandler<int>>();
+            mockReconnectAttemp.Setup(x => x(io, It.IsAny<int>())).Callback(() => list.Add("OnReconnectAttempt"));
+
             var mockReconnectError = new Mock<EventHandler<Exception>>();
+            mockReconnectError.Setup(x => x(io, It.IsAny<Exception>())).Callback(() => list.Add("OnReconnectError"));
+
             var mockReconnectFaild = new Mock<EventHandler>();
+            mockReconnectFaild.Setup(x => x(io, It.IsAny<EventArgs>())).Callback(() => list.Add("OnReconnectFailed"));
 
-            using var io = new SocketIO("http://example.com");
             io.Options.ReconnectionAttempts = 1;
             io.Socket = mockSocket.Object;
             io.OnReconnectAttempt += mockReconnectAttemp.Object;
@@ -84,19 +92,32 @@ public async Task TestAttempsEq1()
             mockSocket.Verify(x => x.ConnectAsync(It.IsAny<Uri>()), Times.Exactly(2));
             mockReconnectAttemp.Verify(x => x(io, 1), Times.Once());
             mockReconnectError.Verify(x => x(io, It.IsAny<TimeoutException>()), Times.Once());
+            mockReconnectFaild.Verify(x => x(io, It.IsAny<EventArgs>()), Times.Once());
+
+            Assert.AreEqual(3, list.Count);
+            Assert.AreEqual("OnReconnectAttempt", list[0]);
+            Assert.AreEqual("OnReconnectError", list[1]);
+            Assert.AreEqual("OnReconnectFailed", list[2]);
         }
 
         [TestMethod]
         public async Task TestAttempsEq2()
         {
+            using var io = new SocketIO("http://example.com");
+            var list = new List<string>();
+
             var mockSocket = new Mock<IWebSocketClient>();
             mockSocket.Setup(x => x.ConnectAsync(It.IsAny<Uri>())).Throws(new WebSocketException());
 
             var mockReconnectAttemp = new Mock<EventHandler<int>>();
+            mockReconnectAttemp.Setup(x => x(io, It.IsAny<int>())).Callback(() => list.Add("OnReconnectAttempt"));
+
             var mockReconnectError = new Mock<EventHandler<Exception>>();
+            mockReconnectError.Setup(x => x(io, It.IsAny<Exception>())).Callback(() => list.Add("OnReconnectError"));
+
             var mockReconnectFaild = new Mock<EventHandler>();
+            mockReconnectFaild.Setup(x => x(io, It.IsAny<EventArgs>())).Callback(() => list.Add("OnReconnectFailed"));
 
-            using var io = new SocketIO("http://example.com");
             io.Options.ReconnectionAttempts = 2;
             io.Socket = mockSocket.Object;
             io.OnReconnectAttempt += mockReconnectAttemp.Object;
@@ -109,6 +130,14 @@ public async Task TestAttempsEq2()
             mockReconnectAttemp.Verify(x => x(io, 1), Times.Once());
             mockReconnectAttemp.Verify(x => x(io, 2), Times.Once());
             mockReconnectError.Verify(x => x(io, It.IsAny<WebSocketException>()), Times.Exactly(2));
+            mockReconnectFaild.Verify(x => x(io, It.IsAny<EventArgs>()), Times.Once());
+
+            Assert.AreEqual(5, list.Count);
+            Assert.AreEqual("OnReconnectAttempt", list[0]);
+            Assert.AreEqual("OnReconnectError", list[1]);
+            Assert.AreEqual("OnReconnectAttempt", list[2]);
+            Assert.AreEqual("OnReconnectError", list[3]);
+            Assert.AreEqual("OnReconnectFailed", list[4]);
         }
     }
 }