added tests for checking whether the message list is in thread

Author: martinmitrevski

StreamChatSwiftUITests/Tests/ChatChannel/ChatChannelViewModel_Tests.swift

@@ -31,6 +31,7 @@ class ChatChannelViewModel_Tests: XCTestCase {
 
         // Then
         XCTAssert(messages.count == 1)
+        XCTAssert(viewModel.isMessageThread == false)
     }
 
     func test_chatChannelVM_messageGrouping() {
@@ -160,6 +161,26 @@ class ChatChannelViewModel_Tests: XCTestCase {
         XCTAssert(initialListId == newListId)
     }
 
+    func test_chatChannelVM_messageThread() {
+        // Given
+        let channelController = makeChannelController()
+        let messageController = ChatMessageController_Mock(
+            client: chatClient,
+            cid: .unique,
+            messageId: .unique
+        )
+        let viewModel = ChatChannelViewModel(
+            channelController: channelController,
+            messageController: messageController
+        )
+        
+        // When
+        let isMessageThread = viewModel.isMessageThread
+        
+        // Then
+        XCTAssert(isMessageThread == true)
+    }
+    
     // MARK: - private
 
     private func makeChannelController(

StreamChatSwiftUITests/Tests/ChatChannel/MessageComposerViewModel_Tests.swift

@@ -311,6 +311,41 @@ class MessageComposerViewModel_Tests: XCTestCase {
         }
     }
 
+    func test_messageComposerVM_notInThread() {
+        // Given
+        let viewModel = makeComposerViewModel()
+        
+        // When
+        let sendInChannel = viewModel.sendInChannelShown
+        let isDMChannel = viewModel.isDirectChannel
+        
+        // Then
+        XCTAssert(sendInChannel == false)
+        XCTAssert(isDMChannel == true)
+    }
+    
+    func test_messageComposerVM_inThread() {
+        // Given
+        let channelController = makeChannelController()
+        let messageController = ChatMessageController_Mock(
+            client: chatClient,
+            cid: .unique,
+            messageId: .unique
+        )
+        let viewModel = MessageComposerViewModel(
+            channelController: channelController,
+            messageController: messageController
+        )
+        
+        // When
+        let sendInChannel = viewModel.sendInChannelShown
+        let isDMChannel = viewModel.isDirectChannel
+        
+        // Then
+        XCTAssert(sendInChannel == true)
+        XCTAssert(isDMChannel == true)
+    }
+    
     // MARK: - private
 
     private func makeComposerViewModel() -> MessageComposerViewModel {