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| 1 | +// |
| 2 | +// Copyright © 2021 Stream.io Inc. All rights reserved. |
| 3 | +// |
| 4 | + |
| 5 | +import SnapshotTesting |
| 6 | +@testable import StreamChat |
| 7 | +@testable import StreamChatSwiftUI |
| 8 | +import SwiftUI |
| 9 | +import XCTest |
| 10 | + |
| 11 | +class ChatChannelDataSource_Tests: XCTestCase { |
| 12 | + |
| 13 | + private var chatClient: ChatClient = { |
| 14 | + let client = ChatClient.mock() |
| 15 | + client.currentUserId = .unique |
| 16 | + return client |
| 17 | + }() |
| 18 | + |
| 19 | + private let message = ChatMessage.mock( |
| 20 | + id: .unique, |
| 21 | + cid: .unique, |
| 22 | + text: "message", |
| 23 | + author: ChatUser.mock(id: .unique) |
| 24 | + ) |
| 25 | + |
| 26 | + private let reply = ChatMessage.mock( |
| 27 | + id: .unique, |
| 28 | + cid: .unique, |
| 29 | + text: "reply", |
| 30 | + author: ChatUser.mock(id: .unique) |
| 31 | + ) |
| 32 | + |
| 33 | + private var streamChat: StreamChat? |
| 34 | + |
| 35 | + override func setUp() { |
| 36 | + super.setUp() |
| 37 | + streamChat = StreamChat(chatClient: chatClient) |
| 38 | + } |
| 39 | + |
| 40 | + func test_channelDataSource_messages() { |
| 41 | + // Given |
| 42 | + let expected: [ChatMessage] = [message] |
| 43 | + let channelDataSource = makeChannelDataSource(messages: expected) |
| 44 | + |
| 45 | + // When |
| 46 | + let messages = channelDataSource.messages |
| 47 | + |
| 48 | + // Then |
| 49 | + XCTAssert(messages[0] == expected[0]) |
| 50 | + XCTAssert(messages.count == expected.count) |
| 51 | + } |
| 52 | + |
| 53 | + func test_channelDataSource_updatedMessages() { |
| 54 | + // Given |
| 55 | + let handler = MockMessagesDataSourceHandler() |
| 56 | + let expected: [ChatMessage] = [message] |
| 57 | + let controller = makeChannelController(messages: expected) |
| 58 | + let channelDataSource = ChatChannelDataSource(controller: controller) |
| 59 | + channelDataSource.delegate = handler |
| 60 | + |
| 61 | + // When |
| 62 | + let noMessagesCall = handler.updateMessagesCalled |
| 63 | + controller.simulate(messages: expected, changes: []) |
| 64 | + let messagesCall = handler.updateMessagesCalled |
| 65 | + let noChannelCall = handler.updateChannelCalled |
| 66 | + |
| 67 | + // Then |
| 68 | + XCTAssert(noMessagesCall == false) |
| 69 | + XCTAssert(messagesCall == true) |
| 70 | + XCTAssert(noChannelCall == false) |
| 71 | + } |
| 72 | + |
| 73 | + func test_channelDataSource_updatedChannel() { |
| 74 | + // Given |
| 75 | + let channel = ChatChannel.mockDMChannel() |
| 76 | + let handler = MockMessagesDataSourceHandler() |
| 77 | + let expected: [ChatMessage] = [message] |
| 78 | + let controller = makeChannelController(messages: expected) |
| 79 | + let channelDataSource = ChatChannelDataSource(controller: controller) |
| 80 | + channelDataSource.delegate = handler |
| 81 | + |
| 82 | + // When |
| 83 | + let noChannelCall = handler.updateChannelCalled |
| 84 | + controller.simulate( |
| 85 | + channel: channel, |
| 86 | + change: .update(channel), |
| 87 | + typingUsers: [] |
| 88 | + ) |
| 89 | + let noMessagesCall = handler.updateMessagesCalled |
| 90 | + let channelCall = handler.updateChannelCalled |
| 91 | + |
| 92 | + // Then |
| 93 | + XCTAssert(noMessagesCall == false) |
| 94 | + XCTAssert(channelCall == true) |
| 95 | + XCTAssert(noChannelCall == false) |
| 96 | + } |
| 97 | + |
| 98 | + func test_messageThreadDataSource_messages() { |
| 99 | + // Given |
| 100 | + let channel = ChatChannel.mockDMChannel() |
| 101 | + let expected: [ChatMessage] = [message] |
| 102 | + let messageController = ChatMessageController_Mock( |
| 103 | + client: chatClient, |
| 104 | + cid: channel.cid, |
| 105 | + messageId: message.id |
| 106 | + ) |
| 107 | + let threadDataSource = makeMessageThreadDataSource( |
| 108 | + messages: expected, |
| 109 | + messageController: messageController |
| 110 | + ) |
| 111 | + |
| 112 | + // When |
| 113 | + var messages = threadDataSource.messages |
| 114 | + let initialCount = messages.count |
| 115 | + messageController.simulate(replies: [reply], changes: []) |
| 116 | + messages = threadDataSource.messages |
| 117 | + let count = messages.count |
| 118 | + |
| 119 | + // Then |
| 120 | + XCTAssert(initialCount == 0) |
| 121 | + XCTAssert(count == 1) |
| 122 | + XCTAssert(messages[0] == reply) |
| 123 | + } |
| 124 | + |
| 125 | + func test_messageThreadDataSource_updatedMessages() { |
| 126 | + // Given |
| 127 | + let channel = ChatChannel.mockDMChannel() |
| 128 | + let expected: [ChatMessage] = [message] |
| 129 | + let messageController = ChatMessageController_Mock( |
| 130 | + client: chatClient, |
| 131 | + cid: channel.cid, |
| 132 | + messageId: message.id |
| 133 | + ) |
| 134 | + let handler = MockMessagesDataSourceHandler() |
| 135 | + let threadDataSource = makeMessageThreadDataSource( |
| 136 | + messages: expected, |
| 137 | + messageController: messageController |
| 138 | + ) |
| 139 | + threadDataSource.delegate = handler |
| 140 | + |
| 141 | + // When |
| 142 | + let noMessagesCall = handler.updateMessagesCalled |
| 143 | + messageController.simulate(replies: [reply], changes: []) |
| 144 | + let messagesCall = handler.updateMessagesCalled |
| 145 | + |
| 146 | + // Then |
| 147 | + XCTAssert(noMessagesCall == false) |
| 148 | + XCTAssert(messagesCall == true) |
| 149 | + } |
| 150 | + |
| 151 | + // MARK: - private |
| 152 | + |
| 153 | + private class MockMessagesDataSourceHandler: MessagesDataSource { |
| 154 | + |
| 155 | + var updateMessagesCalled = false |
| 156 | + var updateChannelCalled = false |
| 157 | + |
| 158 | + func dataSource(channelDataSource: ChannelDataSource, didUpdateMessages messages: LazyCachedMapCollection<ChatMessage>) { |
| 159 | + updateMessagesCalled = true |
| 160 | + } |
| 161 | + |
| 162 | + func dataSource( |
| 163 | + channelDataSource: ChannelDataSource, |
| 164 | + didUpdateChannel channel: EntityChange<ChatChannel>, |
| 165 | + channelController: ChatChannelController |
| 166 | + ) { |
| 167 | + updateChannelCalled = true |
| 168 | + } |
| 169 | + } |
| 170 | + |
| 171 | + private func makeChannelDataSource(messages: [ChatMessage]) -> ChatChannelDataSource { |
| 172 | + let channelController = makeChannelController(messages: messages) |
| 173 | + let channelDataSource = ChatChannelDataSource(controller: channelController) |
| 174 | + return channelDataSource |
| 175 | + } |
| 176 | + |
| 177 | + private func makeMessageThreadDataSource( |
| 178 | + messages: [ChatMessage], |
| 179 | + messageController: ChatMessageController_Mock |
| 180 | + ) -> MessageThreadDataSource { |
| 181 | + let channelController = makeChannelController(messages: messages) |
| 182 | + let threadDataSource = MessageThreadDataSource( |
| 183 | + channelController: channelController, |
| 184 | + messageController: messageController |
| 185 | + ) |
| 186 | + |
| 187 | + return threadDataSource |
| 188 | + } |
| 189 | + |
| 190 | + private func makeChannelController(messages: [ChatMessage]) -> ChatChannelController_Mock { |
| 191 | + let channelController = ChatChannelTestHelpers.makeChannelController( |
| 192 | + chatClient: chatClient, |
| 193 | + messages: messages |
| 194 | + ) |
| 195 | + channelController.simulateInitial( |
| 196 | + channel: .mockDMChannel(), |
| 197 | + messages: messages, |
| 198 | + state: .initialized |
| 199 | + ) |
| 200 | + return channelController |
| 201 | + } |
| 202 | +} |
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