src/test/kotlin/net/pterodactylus/sone/test/TestUtils.kt

   1 package net.pterodactylus.sone.test
   2
   3 import java.lang.reflect.*
   4
   5 private val modifiers = Field::class.java.getDeclaredField("modifiers").apply {
   6         isAccessible = true
   7 }
   8
   9 fun setField(instance: Any, name: String, value: Any?) {
  10         generateSequence<Class<*>>(instance.javaClass) { it.superclass }
  11                         .flatMap { it.declaredFields.asSequence() }
  12                         .filter { it.name == name }
  13                         .toList()
  14                         .forEach { field ->
  15                                 field.isAccessible = true
  16                                 modifiers.setInt(field, field.modifiers and Modifier.FINAL.inv())
  17                                 field.set(instance, value)
  18                         }
  19 }