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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 ChannelHeaderLoader_Tests: XCTestCase { |
| 10 | + |
| 11 | + @Injected(\.images) var images |
| 12 | + |
| 13 | + private let testURL = URL(string: "https://example.com")! |
| 14 | + |
| 15 | + private var chatClient: ChatClient = { |
| 16 | + let client = ChatClient.mock() |
| 17 | + client.currentUserId = .unique |
| 18 | + return client |
| 19 | + }() |
| 20 | + |
| 21 | + private var streamChat: StreamChat? |
| 22 | + |
| 23 | + override func setUp() { |
| 24 | + super.setUp() |
| 25 | + let imageLoader = ImageLoader_Mock() |
| 26 | + let utils = Utils(imageLoader: imageLoader) |
| 27 | + streamChat = StreamChat(chatClient: chatClient, utils: utils) |
| 28 | + } |
| 29 | + |
| 30 | + func test_channelHeaderLoader_channelImageURL() { |
| 31 | + // Given |
| 32 | + let channel = ChatChannel.mockDMChannel(imageURL: testURL) |
| 33 | + |
| 34 | + // Then |
| 35 | + loadImagesAndAssert( |
| 36 | + for: channel, |
| 37 | + expectedInitialImage: images.userAvatarPlaceholder4, |
| 38 | + expectedLoadedImage: ImageLoader_Mock.defaultLoadedImage |
| 39 | + ) |
| 40 | + } |
| 41 | + |
| 42 | + func test_channelHeaderLoader_directMessageChannel_otherMember() { |
| 43 | + // Given |
| 44 | + let channel = ChatChannel.mockDMChannel( |
| 45 | + lastActiveMembers: [.mock(id: .unique, imageURL: testURL)] |
| 46 | + ) |
| 47 | + |
| 48 | + // Then |
| 49 | + loadImagesAndAssert( |
| 50 | + for: channel, |
| 51 | + expectedInitialImage: images.userAvatarPlaceholder3, |
| 52 | + expectedLoadedImage: ImageLoader_Mock.defaultLoadedImage |
| 53 | + ) |
| 54 | + } |
| 55 | + |
| 56 | + func test_channelHeaderLoader_directMessageChannel_placeholder() { |
| 57 | + // Given |
| 58 | + let channel = ChatChannel.mockDMChannel( |
| 59 | + lastActiveMembers: [.mock(id: .unique)] |
| 60 | + ) |
| 61 | + |
| 62 | + // Then |
| 63 | + loadImagesAndAssert( |
| 64 | + for: channel, |
| 65 | + expectedInitialImage: images.userAvatarPlaceholder4, |
| 66 | + expectedLoadedImage: images.userAvatarPlaceholder4 |
| 67 | + ) |
| 68 | + } |
| 69 | + |
| 70 | + func test_channelHeaderLoader_group_activeMembersEmpty() { |
| 71 | + // Given |
| 72 | + let channel = ChatChannel.mockNonDMChannel() |
| 73 | + |
| 74 | + // Then |
| 75 | + loadImagesAndAssert( |
| 76 | + for: channel, |
| 77 | + expectedInitialImage: images.userAvatarPlaceholder4, |
| 78 | + expectedLoadedImage: images.userAvatarPlaceholder4 |
| 79 | + ) |
| 80 | + } |
| 81 | + |
| 82 | + func test_channelHeaderLoader_group_activeMembersEmptyURLs() { |
| 83 | + // Given |
| 84 | + let channel = ChatChannel.mockNonDMChannel( |
| 85 | + lastActiveMembers: [.mock(id: .unique)] |
| 86 | + ) |
| 87 | + |
| 88 | + // Then |
| 89 | + loadImagesAndAssert( |
| 90 | + for: channel, |
| 91 | + expectedInitialImage: images.userAvatarPlaceholder3, |
| 92 | + expectedLoadedImage: images.userAvatarPlaceholder3 |
| 93 | + ) |
| 94 | + } |
| 95 | + |
| 96 | + func test_channelHeaderLoader_group_activeMembersURLs() { |
| 97 | + // Given |
| 98 | + let channel = ChatChannel.mockNonDMChannel( |
| 99 | + lastActiveMembers: [.mock(id: .unique, imageURL: testURL)] |
| 100 | + ) |
| 101 | + |
| 102 | + // Then |
| 103 | + loadImagesAndAssert( |
| 104 | + for: channel, |
| 105 | + expectedInitialImage: images.userAvatarPlaceholder4, |
| 106 | + expectedLoadedImage: nil |
| 107 | + ) |
| 108 | + } |
| 109 | + |
| 110 | + //MARK: - private |
| 111 | + |
| 112 | + private func loadImagesAndAssert( |
| 113 | + for channel: ChatChannel, |
| 114 | + expectedInitialImage: UIImage, |
| 115 | + expectedLoadedImage: UIImage? |
| 116 | + ) { |
| 117 | + // Given |
| 118 | + let channelHeaderLoader = ChannelHeaderLoader() |
| 119 | + let expectation = self.expectation(description: "loadingImage") |
| 120 | + |
| 121 | + // When |
| 122 | + let firstImage = channelHeaderLoader.image(for: channel) |
| 123 | + var secondImage: UIImage! |
| 124 | + |
| 125 | + // Simulate image loaded and view re-draw invoked. |
| 126 | + DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { |
| 127 | + secondImage = channelHeaderLoader.image(for: channel) |
| 128 | + expectation.fulfill() |
| 129 | + } |
| 130 | + |
| 131 | + waitForExpectations(timeout: 1, handler: nil) |
| 132 | + |
| 133 | + // Then |
| 134 | + XCTAssert(firstImage == expectedInitialImage) |
| 135 | + if expectedLoadedImage != nil { |
| 136 | + XCTAssert(secondImage == expectedLoadedImage) |
| 137 | + } else { |
| 138 | + XCTAssert(firstImage != secondImage) |
| 139 | + } |
| 140 | + } |
| 141 | + |
| 142 | +} |
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