Files
WireMock.Net-wiremock/test/WireMock.Net.Tests/WebSockets/WebSocketIntegrationTests.cs
Stef Heyenrath ecb3e249cc match
2026-02-11 15:19:32 +01:00

654 lines
22 KiB
C#

// Copyright © WireMock.Net
using System.Net.WebSockets;
using System.Text;
using FluentAssertions;
using Newtonsoft.Json.Linq;
using WireMock.Net.Xunit;
using WireMock.RequestBuilders;
using WireMock.ResponseBuilders;
using WireMock.Server;
using WireMock.Settings;
using Xunit.Abstractions;
namespace WireMock.Net.Tests.WebSockets;
public class WebSocketIntegrationTests(ITestOutputHelper output)
{
[Fact]
public async Task EchoServer_Should_Echo_Text_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/echo")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.WithEcho()
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/echo");
// Act
await client.ConnectAsync(uri, CancellationToken.None);
client.State.Should().Be(WebSocketState.Open);
var testMessage = "Hello, WebSocket!";
await client.SendAsync(testMessage);
// Assert
var received = await client.ReceiveAsTextAsync();
received.Should().Be(testMessage);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithText_Should_Send_Configured_Text()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseMessage = "This is a predefined response";
server
.Given(Request.Create()
.WithPath("/ws/message")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithText(responseMessage))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/message");
// Act
await client.ConnectAsync(uri, CancellationToken.None);
client.State.Should().Be(WebSocketState.Open);
var testMessage = "Any message from client";
await client.SendAsync(testMessage);
// Assert
var received = await client.ReceiveAsTextAsync();
received.Should().Be(responseMessage);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithText_Should_Send_Same_Text_For_Multiple_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseMessage = "Fixed response";
server
.Given(Request.Create()
.WithPath("/ws/message")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithText(responseMessage))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/message");
await client.ConnectAsync(uri, CancellationToken.None);
var testMessages = new[] { "First", "Second", "Third" };
// Act & Assert
foreach (var testMessage in testMessages)
{
await client.SendAsync(testMessage);
var received = await client.ReceiveAsTextAsync();
received.Should().Be(responseMessage, $"should always return the fixed response regardless of input message '{testMessage}'");
}
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithBytes_Should_Send_Configured_Bytes()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseBytes = new byte[] { 0xDE, 0xAD, 0xBE, 0xEF };
server
.Given(Request.Create()
.WithPath("/ws/binary")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithBytes(responseBytes))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/binary");
// Act
await client.ConnectAsync(uri, CancellationToken.None);
client.State.Should().Be(WebSocketState.Open);
var testMessage = "Any message from client";
await client.SendAsync(testMessage);
// Assert
var receivedData = await client.ReceiveAsBytesAsync();
receivedData.Should().BeEquivalentTo(responseBytes);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithBytes_Should_Send_Same_Bytes_For_Multiple_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseBytes = new byte[] { 0x01, 0x02, 0x03 };
server
.Given(Request.Create()
.WithPath("/ws/binary")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithBytes(responseBytes))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/binary");
await client.ConnectAsync(uri, CancellationToken.None);
var testMessages = new[] { "First", "Second", "Third" };
// Act & Assert
foreach (var testMessage in testMessages)
{
await client.SendAsync(testMessage);
var receivedData = await client.ReceiveAsBytesAsync();
receivedData.Should().BeEquivalentTo(responseBytes, $"should always return the fixed bytes regardless of input message '{testMessage}'");
}
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithJson_Should_Send_Configured_Json()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseData = new
{
status = "ok",
message = "This is a predefined JSON response",
timestamp = new DateTime(2024, 1, 1, 12, 0, 0, DateTimeKind.Utc)
};
server
.Given(Request.Create()
.WithPath("/ws/json")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithJson(responseData))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/json");
// Act
await client.ConnectAsync(uri, CancellationToken.None);
client.State.Should().Be(WebSocketState.Open);
var testMessage = "Any message from client";
await client.SendAsync(testMessage);
// Assert
var received = await client.ReceiveAsTextAsync();
var json = JObject.Parse(received);
json["status"]!.ToString().Should().Be("ok");
json["message"]!.ToString().Should().Be("This is a predefined JSON response");
json["timestamp"].Should().NotBeNull();
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WithJson_Should_Send_Same_Json_For_Multiple_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
var responseData = new
{
id = 42,
name = "Fixed JSON Response"
};
server
.Given(Request.Create()
.WithPath("/ws/json")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.SendMessage(m => m.WithJson(responseData))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/json");
await client.ConnectAsync(uri, CancellationToken.None);
var testMessages = new[] { "First", "Second", "Third" };
// Act & Assert
foreach (var testMessage in testMessages)
{
await client.SendAsync(testMessage);
var received = await client.ReceiveAsTextAsync();
var json = JObject.Parse(received);
json["id"]!.Value<int>().Should().Be(42);
json["name"]!.ToString().Should().Be("Fixed JSON Response", $"should always return the fixed JSON regardless of input message '{testMessage}'");
}
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task EchoServer_Should_Echo_Multiple_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/echo")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws.WithEcho())
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/echo");
await client.ConnectAsync(uri, CancellationToken.None);
var testMessages = new[] { "Hello", "World", "WebSocket", "Test" };
// Act & Assert
foreach (var testMessage in testMessages)
{
await client.SendAsync(testMessage);
var received = await client.ReceiveAsTextAsync();
received.Should().Be(testMessage, $"message '{testMessage}' should be echoed back");
}
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task EchoServer_Should_Echo_Binary_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/echo")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws.WithEcho())
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/echo");
await client.ConnectAsync(uri, CancellationToken.None);
var testData = new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 };
// Act
await client.SendAsync(new ArraySegment<byte>(testData), WebSocketMessageType.Binary, true, CancellationToken.None);
var receivedData = await client.ReceiveAsBytesAsync();
// Assert
receivedData.Should().BeEquivalentTo(testData);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task EchoServer_Should_Handle_Empty_Messages()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/echo")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws.WithEcho())
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/echo");
await client.ConnectAsync(uri, CancellationToken.None);
// Act
await client.SendAsync(string.Empty);
var receiveBuffer = new byte[1024];
var result = await client.ReceiveAsync(new ArraySegment<byte>(receiveBuffer), CancellationToken.None);
// Assert
result.Count.Should().Be(0);
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task CustomHandler_Should_Handle_Help_Command()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/chat")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.WithMessageHandler(async (message, context) =>
{
if (message.MessageType == WebSocketMessageType.Text)
{
var text = message.Text ?? string.Empty;
if (text.StartsWith("/help"))
{
await context.SendAsync("Available commands: /help, /time, /echo <text>, /upper <text>, /reverse <text>");
}
}
})
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/chat");
await client.ConnectAsync(uri, CancellationToken.None);
// Act
await client.SendAsync("/help");
var received = await client.ReceiveAsTextAsync();
// Assert
received.Should().Contain("Available commands");
received.Should().Contain("/help");
received.Should().Contain("/time");
received.Should().Contain("/echo");
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task CustomHandler_Should_Handle_Multiple_Commands_In_Sequence()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/chat")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.WithMessageHandler(async (message, context) =>
{
if (message.MessageType == WebSocketMessageType.Text)
{
var text = message.Text ?? string.Empty;
if (text.StartsWith("/help"))
{
await context.SendAsync("Available commands: /help, /time, /echo <text>, /upper <text>, /reverse <text>");
}
else if (text.StartsWith("/time"))
{
await context.SendAsync($"Server time: {DateTime.UtcNow:yyyy-MM-dd HH:mm:ss} UTC");
}
else if (text.StartsWith("/echo "))
{
await context.SendAsync(text.Substring(6));
}
else if (text.StartsWith("/upper "))
{
await context.SendAsync(text.Substring(7).ToUpper());
}
else if (text.StartsWith("/reverse "))
{
var toReverse = text.Substring(9);
var reversed = new string(toReverse.Reverse().ToArray());
await context.SendAsync(reversed);
}
else if (text.StartsWith("/close"))
{
await context.CloseAsync(WebSocketCloseStatus.NormalClosure, "Closing connection");
}
}
})
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/chat");
await client.ConnectAsync(uri, CancellationToken.None);
var commands = new (string, Action<string>)[]
{
("/help", response => response.Should().Contain("Available commands")),
("/time", response => response.Should().Contain("Server time")),
("/echo Test", response => response.Should().Be("Test")),
("/upper test", response => response.Should().Be("TEST")),
("/reverse hello", response => response.Should().Be("olleh"))
};
// Act & Assert
foreach (var (command, assertion) in commands)
{
await client.SendAsync(command);
var received = await client.ReceiveAsTextAsync();
assertion(received);
}
await client.SendAsync("/close");
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WhenMessage_Should_Handle_Multiple_Conditions_Fluently()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/conditional")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.WhenMessage("/help").SendMessage(m => m.WithText("Available commands: /help, /time, /echo <text>"))
.WhenMessage("/time").SendMessage(m => m.WithText($"Server time: {DateTime.UtcNow:yyyy-MM-dd HH:mm:ss} UTC"))
.WhenMessage("/echo ").SendMessage(m => m.WithText("echo response"))
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/conditional");
await client.ConnectAsync(uri, CancellationToken.None);
var testCases = new (string message, string expectedContains)[]
{
("/help", "Available commands"),
("/time", "Server time"),
("/echo test", "echo response")
};
// Act & Assert
foreach (var (message, expectedContains) in testCases)
{
await client.SendAsync(message);
var received = await client.ReceiveAsTextAsync();
received.Should().Contain(expectedContains, $"message '{message}' should return response containing '{expectedContains}'");
}
await client.CloseAsync(WebSocketCloseStatus.NormalClosure, "Test complete", CancellationToken.None);
}
[Fact]
public async Task WhenMessage_Should_Close_Connection_When_AndClose_Is_Used()
{
// Arrange
using var server = WireMockServer.Start(new WireMockServerSettings
{
Logger = new TestOutputHelperWireMockLogger(output),
Urls = ["ws://localhost:0"]
});
server
.Given(Request.Create()
.WithPath("/ws/close")
.WithWebSocketUpgrade()
)
.RespondWith(Response.Create()
.WithWebSocket(ws => ws
.WhenMessage("/close").SendMessage(m => m.WithText("Closing connection").AndClose())
)
);
using var client = new ClientWebSocket();
var uri = new Uri($"{server.Url!}/ws/close");
await client.ConnectAsync(uri, CancellationToken.None);
// Act
await client.SendAsync("/close");
var received = await client.ReceiveAsTextAsync();
// Assert
received.Should().Contain("Closing connection");
// Try to receive again - this will complete the close handshake
// and update the client state to Closed
try
{
var receiveBuffer = new byte[1024];
var result = await client.ReceiveAsync(new ArraySegment<byte>(receiveBuffer), CancellationToken.None);
// If we get here, the message type should be Close
result.MessageType.Should().Be(WebSocketMessageType.Close);
}
catch (WebSocketException)
{
// Connection was closed, which is expected
}
// Verify the connection is CloseReceived
client.State.Should().Be(WebSocketState.CloseReceived);
}
}