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| 1 | +// |
| 2 | +// Copyright © 2021 Stream.io Inc. All rights reserved. |
| 3 | +// |
| 4 | + |
| 5 | +import XCTest |
| 6 | +@testable import StreamChatSwiftUI |
| 7 | +@testable import StreamChat |
| 8 | + |
| 9 | +class ChatChannelViewModel_Tests: XCTestCase { |
| 10 | + |
| 11 | + private var chatClient: ChatClient = { |
| 12 | + let client = ChatClient.mock() |
| 13 | + client.currentUserId = .unique |
| 14 | + return client |
| 15 | + }() |
| 16 | + |
| 17 | + private var streamChat: StreamChat? |
| 18 | + |
| 19 | + override func setUp() { |
| 20 | + super.setUp() |
| 21 | + streamChat = StreamChat(chatClient: chatClient) |
| 22 | + } |
| 23 | + |
| 24 | + func test_chatChannelVM_messagesLoaded() { |
| 25 | + // Given |
| 26 | + let channelController = makeChannelController() |
| 27 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 28 | + |
| 29 | + // When |
| 30 | + let messages = viewModel.messages |
| 31 | + |
| 32 | + // Then |
| 33 | + XCTAssert(messages.count == 1) |
| 34 | + } |
| 35 | + |
| 36 | + func test_chatChannelVM_messageGrouping() { |
| 37 | + // Given |
| 38 | + var messages = [ChatMessage]() |
| 39 | + var offset: Double = 200 |
| 40 | + for i in 0..<16 { |
| 41 | + if i % 2 == 0 { |
| 42 | + offset += 200 |
| 43 | + } |
| 44 | + let createdAt = Date(timeIntervalSince1970: offset) |
| 45 | + let message = ChatMessage.mock( |
| 46 | + id: .unique, |
| 47 | + cid: .unique, |
| 48 | + text: "Test Message \(i)", |
| 49 | + author: ChatUser.mock(id: chatClient.currentUserId!), |
| 50 | + createdAt: createdAt |
| 51 | + ) |
| 52 | + |
| 53 | + messages.append(message) |
| 54 | + } |
| 55 | + let channelController = makeChannelController(messages: messages) |
| 56 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 57 | + |
| 58 | + // When |
| 59 | + let messagesGroupingInfo = viewModel.messagesGroupingInfo |
| 60 | + |
| 61 | + // Then |
| 62 | + XCTAssert(messagesGroupingInfo.count == 8) |
| 63 | + for (_, groupingInfo) in messagesGroupingInfo { |
| 64 | + XCTAssert(groupingInfo.count == 1) |
| 65 | + } |
| 66 | + } |
| 67 | + |
| 68 | + func test_chatChannelVM_scrollToLastMessage() { |
| 69 | + // Given |
| 70 | + let messageId: String = .unique |
| 71 | + let message = ChatMessage.mock( |
| 72 | + id: messageId, |
| 73 | + cid: .unique, |
| 74 | + text: "Test message", |
| 75 | + author: ChatUser.mock(id: chatClient.currentUserId!) |
| 76 | + ) |
| 77 | + let channelController = makeChannelController(messages: [message]) |
| 78 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 79 | + |
| 80 | + // When |
| 81 | + viewModel.scrollToLastMessage() |
| 82 | + |
| 83 | + // Then |
| 84 | + XCTAssert(viewModel.scrolledId == messageId) |
| 85 | + } |
| 86 | + |
| 87 | + func test_chatChannelVM_currentDateString() { |
| 88 | + // Given |
| 89 | + let expectedDate = "Jan 01" |
| 90 | + let channelController = makeChannelController() |
| 91 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 92 | + |
| 93 | + // When |
| 94 | + viewModel.showScrollToLatestButton = true |
| 95 | + viewModel.handleMessageAppear(index: 0) |
| 96 | + |
| 97 | + // Then |
| 98 | + let dateString = viewModel.currentDateString |
| 99 | + XCTAssert(dateString == expectedDate) |
| 100 | + } |
| 101 | + |
| 102 | + func test_chatChannelVM_showReactionsOverlay() { |
| 103 | + // Given |
| 104 | + let channelController = makeChannelController() |
| 105 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 106 | + |
| 107 | + // When |
| 108 | + viewModel.showReactionOverlay() |
| 109 | + |
| 110 | + // Then |
| 111 | + XCTAssert(viewModel.currentSnapshot != nil) |
| 112 | + XCTAssert(viewModel.reactionsShown == true) |
| 113 | + } |
| 114 | + |
| 115 | + func test_chatChannelVM_listRefresh() { |
| 116 | + // Given |
| 117 | + var messages = [ChatMessage]() |
| 118 | + for i in 0..<250 { |
| 119 | + let message = ChatMessage.mock( |
| 120 | + id: .unique, |
| 121 | + cid: .unique, |
| 122 | + text: "Test Message \(i)", |
| 123 | + author: ChatUser.mock(id: chatClient.currentUserId!) |
| 124 | + ) |
| 125 | + messages.append(message) |
| 126 | + } |
| 127 | + let channelController = makeChannelController(messages: messages) |
| 128 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 129 | + |
| 130 | + // When |
| 131 | + let initialListId = viewModel.listId |
| 132 | + channelController.simulate(messages: messages, changes: []) |
| 133 | + |
| 134 | + // Then |
| 135 | + let newListId = viewModel.listId |
| 136 | + XCTAssert(initialListId != newListId) |
| 137 | + } |
| 138 | + |
| 139 | + func test_chatChannelVM_listNoRefresh() { |
| 140 | + // Given |
| 141 | + var messages = [ChatMessage]() |
| 142 | + for i in 0..<200 { |
| 143 | + let message = ChatMessage.mock( |
| 144 | + id: .unique, |
| 145 | + cid: .unique, |
| 146 | + text: "Test Message \(i)", |
| 147 | + author: ChatUser.mock(id: chatClient.currentUserId!) |
| 148 | + ) |
| 149 | + messages.append(message) |
| 150 | + } |
| 151 | + let channelController = makeChannelController(messages: messages) |
| 152 | + let viewModel = ChatChannelViewModel(channelController: channelController) |
| 153 | + |
| 154 | + // When |
| 155 | + let initialListId = viewModel.listId |
| 156 | + channelController.simulate(messages: messages, changes: []) |
| 157 | + |
| 158 | + // Then |
| 159 | + let newListId = viewModel.listId |
| 160 | + XCTAssert(initialListId == newListId) |
| 161 | + } |
| 162 | + |
| 163 | + //MARK: - private |
| 164 | + |
| 165 | + private func makeChannelController( |
| 166 | + messages: [ChatMessage] = [] |
| 167 | + ) -> ChatChannelController_Mock { |
| 168 | + let channel = ChatChannel.mockDMChannel() |
| 169 | + let channelQuery = ChannelQuery(cid: channel.cid) |
| 170 | + let channelListQuery = ChannelListQuery(filter: .containMembers(userIds: [chatClient.currentUserId!])) |
| 171 | + let channelController = ChatChannelController_Mock( |
| 172 | + channelQuery: channelQuery, |
| 173 | + channelListQuery: channelListQuery, |
| 174 | + client: chatClient |
| 175 | + ) |
| 176 | + var channelMessages = messages |
| 177 | + if channelMessages.isEmpty { |
| 178 | + let message = ChatMessage.mock( |
| 179 | + id: .unique, |
| 180 | + cid: channel.cid, |
| 181 | + text: "Test message", |
| 182 | + author: ChatUser.mock(id: chatClient.currentUserId!) |
| 183 | + ) |
| 184 | + channelMessages = [message] |
| 185 | + } |
| 186 | + |
| 187 | + channelController.simulateInitial(channel: channel, messages: channelMessages, state: .initialized) |
| 188 | + return channelController |
| 189 | + } |
| 190 | + |
| 191 | +} |
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