What are integration testing setup for CryptoKit in Swift?

// Example of setting up integration tests for a CryptoKit-based hashing function

import XCTest
import CryptoKit

class CryptoKitIntegrationTests: XCTestCase {
    
    func testSHA256Hash() {
        let input = "Hello, World!"
        let inputData = Data(input.utf8)
        
        // Perform SHA256 hashing using CryptoKit
        let hashed = SHA256.hash(data: inputData)
        
        // Expected SHA256 hash value for "Hello, World!"
        let expectedHash = "a591a6d40bf420404a011733cfb7b190d62c65bf0bcda190f7c6c9b2d95d7f8c"
        
        // Convert hashed result to a hex string
        let hashedHexString = hashed.compactMap { String(format: "%02x", $0) }.joined()
        
        // Assert that the hashed output matches the expected hash
        XCTAssertEqual(hashedHexString, expectedHash, "SHA256 hashing failed")
    }
}