WendyYanto

<resources>
  <declare-styleable name="LazyLoadComponent">
    <attr name="layout_res" format="reference" />
    <attr name="parent_layout_id" format="reference" />
  </declare-styleable>
</resources>

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init {
  val typeArray = context.theme.obtainStyledAttributes(attrs, R.styleable.LazyLoadComponent, 0, 0)

  val parentResId = typeArray.getResourceId(R.styleable.LazyLoadComponent_parent_layout_id, -1)
  val layoutRes = typeArray.getResourceId(R.styleable.LazyLoadComponent_layout_res, -1)

  with(viewStub) {
    layoutResource = layoutRes
    addView(this)
  }

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class LazyLoadComponent @JvmOverloads constructor(
  context: Context, attrs: AttributeSet? = null
) : LinearLayout(context, attrs) {
    
  private val viewStub by lazy {
    ViewStub(context, attrs)
  }

  init {
    with(viewStub) {

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private fun isViewShown(): Boolean {
  return (parentView.scrollY + screenHeight) >= viewStub.top
}

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User(id=USER_ID, name=John Doe, age=20)

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class RxJavaTest {

  companion object {
    private const val USER_ID = "USER_ID"
    private const val NAME = "John Doe"
    private const val AGE = 20
  }

  @Test
  fun getUser() {

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user ID is invalid

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get user
UserID is invalid

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class RxJavaUnitTest {

  companion object {
    private const val NAME = "John Doe"
    private const val AGE = 20
    private const val EMPTY = ""
  }

  @Test
  fun getUserWithError() {

WendyYanto

class RxJavaUnitTest {

  companion object {
    private const val USER_ID = "USER_ID"
    private const val NAME = "John Doe"
    private const val AGE = 20
    private const val EMPTY = ""
  }

  @Test