What are integration testing setup for Keychain in Swift?

Integration testing for Keychain in Swift involves verifying that keychain interactions function as expected within the context of your application. This ensures that sensitive data is securely stored and retrieved correctly. Below are the steps and an example to set up integration testing for Keychain.

    import XCTest
    @testable import YourAppModule

    class KeychainIntegrationTests: XCTestCase {

        func testKeychainSavingRetrieving() {
            let keychain = KeychainService() // Assume you have a KeychainService implementation
            let testKey = "TestKey"
            let testValue = "TestValue"

            // Save the value to keychain
            do {
                try keychain.save(key: testKey, value: testValue)
            } catch {
                XCTFail("Failed to save value to Keychain: \(error)")
            }

            // Retrieve the value from keychain
            do {
                let retrievedValue = try keychain.retrieve(key: testKey)
                XCTAssertEqual(retrievedValue, testValue, "Retrieved value does not match the saved value")
            } catch {
                XCTFail("Failed to retrieve value from Keychain: \(error)")
            }

            // Clean up - deleting the key for the next test
            do {
                try keychain.delete(key: testKey)
            } catch {
                XCTFail("Failed to delete value from Keychain: \(error)")
            }
        }
    }