test

dotnet/tests/Microsoft.Agents.AI.Hosting.A2A.UnitTests/Converters/MessageConverterTests.cs

@@ -0,0 +1,85 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.Linq;
+using A2A;
+using Microsoft.Agents.AI.Hosting.A2A.Converters;
+using Microsoft.Extensions.AI;
+
+namespace Microsoft.Agents.AI.Hosting.A2A.UnitTests.Converters;
+
+public class MessageConverterTests
+{
+    [Fact]
+    public void ToChatMessages_MessageSendParams_Null_ReturnsEmptyCollection()
+    {
+        MessageSendParams? messageSendParams = null;
+
+        var result = messageSendParams!.ToChatMessages();
+
+        Assert.NotNull(result);
+        Assert.Empty(result);
+    }
+
+    [Fact]
+    public void ToChatMessages_MessageSendParams_WithNullMessage_ReturnsEmptyCollection()
+    {
+        var messageSendParams = new MessageSendParams
+        {
+            Message = null!
+        };
+
+        var result = messageSendParams.ToChatMessages();
+
+        Assert.NotNull(result);
+        Assert.Empty(result);
+    }
+
+    [Fact]
+    public void ToChatMessages_MessageSendParams_WithMessageWithoutParts_ReturnsEmptyCollection()
+    {
+        var messageSendParams = new MessageSendParams
+        {
+            Message = new AgentMessage
+            {
+                MessageId = "test-id",
+                Role = MessageRole.User,
+                Parts = null!
+            }
+        };
+
+        var result = messageSendParams.ToChatMessages();
+
+        Assert.NotNull(result);
+        Assert.Empty(result);
+    }
+
+    [Fact]
+    public void ToChatMessages_MessageSendParams_WithValidTextMessage_ReturnsCorrectChatMessage()
+    {
+        var messageSendParams = new MessageSendParams
+        {
+            Message = new AgentMessage
+            {
+                MessageId = "test-id",
+                Role = MessageRole.User,
+                Parts =
+                [
+                    new TextPart { Text = "Hello, world!" }
+                ]
+            }
+        };
+
+        var result = messageSendParams.ToChatMessages();
+
+        Assert.NotNull(result);
+        Assert.Single(result);
+
+        var chatMessage = result.First();
+        Assert.Equal("test-id", chatMessage.MessageId);
+        Assert.Equal(ChatRole.User, chatMessage.Role);
+        Assert.Single(chatMessage.Contents);
+
+        var textContent = Assert.IsType<TextContent>(chatMessage.Contents.First());
+        Assert.Equal("Hello, world!", textContent.Text);
+    }
+}