Kotlin Preferences Test

PrefsUtil.kt

class PrefsUtil @Inject constructor(private val sharedPreferences: SharedPreferences) {

    fun putBoolean(key: String, value: Boolean): Boolean {
        val editor: SharedPreferences.Editor = sharedPreferences.edit()
        editor.putBoolean(key, value)
        return editor.commit()
    }

    fun getBoolean(key: String, defaultValue: Boolean): Boolean =
            sharedPreferences.getBoolean(key, defaultValue)

    fun clearPrefs() = sharedPreferences.edit().clear().clear().apply()

}