Add Thread List Item test coverage

Sources/StreamChatSwiftUI/ChatThreadList/ChatThreadListItem.swift

@@ -35,6 +35,8 @@ public struct ChatThreadListItem: View {
         var parentMessageText: String
         if thread.parentMessage.isDeleted {
             parentMessageText = L10n.Message.deletedMessagePlaceholder
+        } else if let threadTitle = thread.title {
+            parentMessageText = threadTitle
         } else {
             let formatter = MessagePreviewFormatter()
             parentMessageText =  formatter.formatContent(for: thread.parentMessage)

StreamChatSwiftUI.xcodeproj/project.pbxproj

@@ -520,6 +520,7 @@
 		ADE0F5622CB8556F0053B8B9 /* ChatThreadListFooterView.swift in Sources */ = {isa = PBXBuildFile; fileRef = ADE0F5612CB8556F0053B8B9 /* ChatThreadListFooterView.swift */; };
 		ADE0F5642CB9609E0053B8B9 /* ChatThreadListHeaderView.swift in Sources */ = {isa = PBXBuildFile; fileRef = ADE0F5632CB9609E0053B8B9 /* ChatThreadListHeaderView.swift */; };
 		ADE0F5662CB962470053B8B9 /* ActionBannerView.swift in Sources */ = {isa = PBXBuildFile; fileRef = ADE0F5652CB962470053B8B9 /* ActionBannerView.swift */; };
+		ADE442F22CBDAAC40066CDF7 /* ChatThreadListItemView_Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = ADE442F12CBDAAC40066CDF7 /* ChatThreadListItemView_Tests.swift */; };
 		C14A465B284665B100EF498E /* SDKIdentifier.swift in Sources */ = {isa = PBXBuildFile; fileRef = C14A465A284665B100EF498E /* SDKIdentifier.swift */; };
 		E3A1C01C282BAC66002D1E26 /* Sentry in Frameworks */ = {isa = PBXBuildFile; productRef = E3A1C01B282BAC66002D1E26 /* Sentry */; };
 /* End PBXBuildFile section */
@@ -1109,6 +1110,7 @@
 		ADE0F5612CB8556F0053B8B9 /* ChatThreadListFooterView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatThreadListFooterView.swift; sourceTree = "<group>"; };
 		ADE0F5632CB9609E0053B8B9 /* ChatThreadListHeaderView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatThreadListHeaderView.swift; sourceTree = "<group>"; };
 		ADE0F5652CB962470053B8B9 /* ActionBannerView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ActionBannerView.swift; sourceTree = "<group>"; };
+		ADE442F12CBDAAC40066CDF7 /* ChatThreadListItemView_Tests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ChatThreadListItemView_Tests.swift; sourceTree = "<group>"; };
 		C14A465A284665B100EF498E /* SDKIdentifier.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SDKIdentifier.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
@@ -2072,6 +2074,7 @@
 				84E6EC24279AEE9F0017207B /* StreamChatTestCase.swift */,
 				84C94C7D27567CC2007FE2B9 /* ChatChannelList */,
 				84C94D472758BDB2007FE2B9 /* ChatChannel */,
+				ADE442EC2CBDAA320066CDF7 /* ChatThreadList */,
 				4F6D83522C108D470098C298 /* CommonViews */,
 				84C94D52275A135F007FE2B9 /* Utils */,
 			);
@@ -2260,6 +2263,7 @@
 			path = ChatThreadList;
 			sourceTree = "<group>";
 		};
+				ADE442F12CBDAAC40066CDF7 /* ChatThreadListItemView_Tests.swift */,
 /* End PBXGroup section */
 
 /* Begin PBXHeadersBuildPhase section */
@@ -2978,6 +2982,7 @@
 				84CC3732290B0A4000689B73 /* StreamChatModel.xcdatamodeld in Sources */,
 				84E04790284A444E00BAFA17 /* CDNClient_Mock.swift in Sources */,
 				84E04796284A444E00BAFA17 /* EventBatcherMock.swift in Sources */,
+				ADE442F22CBDAAC40066CDF7 /* ChatThreadListItemView_Tests.swift in Sources */,
 				84E57C5B28103822002213C1 /* TestDataModel.xcdatamodeld in Sources */,
 				84E04792284A444E00BAFA17 /* MockBackgroundTaskScheduler.swift in Sources */,
 				84C94D1327578BF2007FE2B9 /* XCTestCase+MockJSON.swift in Sources */,

StreamChatSwiftUITests/Tests/ChatThreadList/ChatThreadListItemView_Tests.swift

@@ -0,0 +1,132 @@
+//
+// Copyright © 2024 Stream.io Inc. All rights reserved.
+//
+
+import SnapshotTesting
+@testable import StreamChat
+@testable import StreamChatSwiftUI
+@testable import StreamChatTestTools
+import StreamSwiftTestHelpers
+import XCTest
+
+final class ChatThreadListItemView_Tests: StreamChatTestCase {
+    var mockThread: ChatThread!
+
+    var mockYoda = ChatUser.mock(id: .unique, name: "Yoda", imageURL: nil)
+    var currentUser: ChatUser!
+
+    override func setUp() {
+        super.setUp()
+        let circleImage = UIImage.circleImage
+        streamChat?.utils.channelHeaderLoader.placeholder1 = circleImage
+        streamChat?.utils.channelHeaderLoader.placeholder2 = circleImage
+        streamChat?.utils.channelHeaderLoader.placeholder3 = circleImage
+        streamChat?.utils.channelHeaderLoader.placeholder4 = circleImage
+
+        currentUser = ChatUser.mock(id: StreamChatTestCase.currentUserId, name: "Vader", imageURL: nil)
+
+        mockThread = .mock(
+            parentMessage: .mock(text: "Parent Message", author: mockYoda),
+            channel: .mock(cid: .unique, name: "Star Wars Channel"),
+            createdBy: currentUser,
+            replyCount: 3,
+            participantCount: 2,
+            threadParticipants: [
+                .mock(user: mockYoda),
+                .mock(user: currentUser)
+            ],
+            lastMessageAt: .unique,
+            createdAt: .unique,
+            updatedAt: .unique,
+            title: nil,
+            latestReplies: [
+                .mock(text: "First Message", author: mockYoda),
+                .mock(text: "Second Message", author: currentUser),
+                .mock(text: "Third Message", author: mockYoda)
+            ],
+            reads: [],
+            extraData: [:]
+        )
+    }
+
+    func test_threadListItem_default() throws {
+        let view = ChatThreadListItem(thread: mockThread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_withUnreads() throws {
+        let thread = mockThread
+            .with(reads: [.mock(user: currentUser, lastReadAt: .unique, unreadMessagesCount: 4)])
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_withTitle() throws {
+        let thread = mockThread
+            .with(title: "Thread title")
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_withParentMessageDeleted() throws {
+        let thread = mockThread
+            .with(parentMessage: .mock(text: "Parent Message", deletedAt: .unique))
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_withLastReplyDeleted() throws {
+        let thread = mockThread
+            .with(latestReplies: [
+                .mock(text: "First Message", author: mockYoda),
+                .mock(text: "Second Message", author: currentUser),
+                .mock(text: "Third Message", author: mockYoda, deletedAt: .unique)
+            ])
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_whenAttachments() throws {
+        let thread = mockThread
+            .with(
+                parentMessage: .mock(text: "", attachments: [.dummy(type: .giphy)]),
+                latestReplies: [
+                    .mock(text: "", author: mockYoda, attachments: [.dummy(type: .audio)])
+                ]
+            )
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+
+    func test_threadListItem_whenAttachmentIsPoll() throws {
+        let thread = mockThread
+            .with(
+                parentMessage: .mock(text: "", poll: .mock(name: "Who is better?")),
+                latestReplies: [
+                    .mock(text: "", author: mockYoda, poll: .mock(name: "Who is worse?"))
+                ]
+            )
+
+        let view = ChatThreadListItem(thread: thread)
+            .frame(width: defaultScreenSize.width)
+
+        assertSnapshot(matching: view, as: .image(perceptualPrecision: precision))
+    }
+}