UserPreferencesTests

UserPreferencesTests.swift

final class UserPreferencesTests: XCTestCase {
    private var userPreferences: UserPreferences!

    override func setUp() {
        super.setUp()
        let userDefaults = UserDefaults(suiteName: #file)
        userDefaults?.removePersistentDomain(forName: #file)
        userPreferences = .init(userDefaults: userDefaults!)
    }

    func testSettingAndGettingValue() throws {
        // Set a value for a key
        userPreferences[.onBoardingSeen] = true

        // Get the value for the key and verify it
        let value: Bool = try XCTUnwrap(userPreferences[.onBoardingSeen])
        XCTAssertTrue(value)
    }

    func testSettingAndDeletingValue() {
        // Set a value for a key
        userPreferences[.onBoardingSeen] = true

        // Delete the value for the key
        userPreferences.remove(key: .onBoardingSeen)

        // Get the value for the key and verify it is nil
        let value: Bool? = userPreferences[.onBoardingSeen]
        XCTAssertNil(value)
    }

    func testGettingNonExistentValue() {
        // Get the value for a non-existent key and verify it is nil
        let value: Bool? = userPreferences[.onBoardingSeen]
        XCTAssertNil(value)
    }
}