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Music/MusicTests/TrackFileStatsTests.swift

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1.1 KiB

import Foundation
import Testing
@testable import Music
// Verifies the shared file-stat helper reads size/mod-date from disk and
// produces a fileHash identical to Track.computeHash (the existing canonical formula).
struct TrackFileStatsTests {
@Test func compute_matchesTrackComputeHash() throws {
// Step 1: write a temp file with known bytes.
let url = URL(fileURLWithPath: NSTemporaryDirectory())
.appendingPathComponent(UUID().uuidString + ".bin")
try Data(repeating: 0xAB, count: 1234).write(to: url)
defer { try? FileManager.default.removeItem(at: url) }
// Step 2: compute stats via the helper.
let stats = try TrackFileStats.compute(for: url)
// Step 3: independently read attrs and assert the helper agrees.
let attrs = try FileManager.default.attributesOfItem(atPath: url.path)
let size = attrs[.size] as? Int64 ?? -1
let mod = attrs[.modificationDate] as? Date ?? Date.distantPast
#expect(stats.fileSize == size)
#expect(stats.dateModified == mod)
#expect(stats.fileHash == Track.computeHash(fileSize: size, modificationDate: mod))
}
}