56 lines
2.3 KiB
Swift
56 lines
2.3 KiB
Swift
//
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// MediaPreviewModelsTests.swift
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// suixinkanTests
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//
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import UIKit
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import XCTest
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@testable import suixinkan
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/// 通用媒体预览模型测试。
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final class MediaPreviewModelsTests: XCTestCase {
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func testClampedStartIndexKeepsIndexInBounds() {
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XCTAssertEqual(MediaPreviewItem.clampedStartIndex(-3, itemCount: 4), 0)
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XCTAssertEqual(MediaPreviewItem.clampedStartIndex(2, itemCount: 4), 2)
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XCTAssertEqual(MediaPreviewItem.clampedStartIndex(8, itemCount: 4), 3)
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XCTAssertEqual(MediaPreviewItem.clampedStartIndex(8, itemCount: 0), 0)
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}
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func testRemoteImageAndVideoURLConstructionFiltersInvalidText() {
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let image = MediaPreviewItem.remoteImage(" https://cdn.example.com/a.jpg ")
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let video = MediaPreviewItem.remoteVideo("https://cdn.example.com/a.mp4")
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XCTAssertEqual(image?.mediaType, .image)
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XCTAssertEqual(video?.mediaType, .video)
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XCTAssertNil(MediaPreviewItem.remoteImage(""))
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XCTAssertNil(MediaPreviewItem.remoteImage(" "))
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XCTAssertNil(MediaPreviewItem.remoteVideo("file:///tmp/a.mp4"))
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XCTAssertNil(MediaPreviewItem.remoteVideo("not a url"))
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}
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func testLocalImageAndVideoTypeRecognition() {
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let localImage = MediaPreviewItem.localImage(url: URL(fileURLWithPath: "/tmp/a.jpg"))
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let memoryImage = MediaPreviewItem.image(UIImage())
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let localVideo = MediaPreviewItem.localVideo(url: URL(fileURLWithPath: "/tmp/a.mp4"))
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XCTAssertTrue(localImage.isImage)
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XCTAssertTrue(memoryImage.isImage)
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XCTAssertTrue(localVideo.isVideo)
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XCTAssertEqual(localVideo.mediaType, .video)
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}
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func testCurrentItemReadsClampedItemFromMixedMedia() {
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let items = [
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MediaPreviewItem.localImage(url: URL(fileURLWithPath: "/tmp/a.jpg")),
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MediaPreviewItem.localVideo(url: URL(fileURLWithPath: "/tmp/a.mp4")),
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MediaPreviewItem.remoteImage("https://cdn.example.com/b.jpg")!,
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]
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XCTAssertEqual(MediaPreviewItem.currentItem(in: items, startIndex: -1)?.mediaType, .image)
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XCTAssertEqual(MediaPreviewItem.currentItem(in: items, startIndex: 1)?.mediaType, .video)
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XCTAssertEqual(MediaPreviewItem.currentItem(in: items, startIndex: 99)?.mediaType, .image)
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XCTAssertNil(MediaPreviewItem.currentItem(in: [], startIndex: 0))
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}
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}
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