text: import org.jetbrains.numkt.array
  import org.jetbrains.numkt.columnStack
  import org.jetbrains.numkt.core.reshape
  import org.jetbrains.numkt.hstack
  import org.jetbrains.numkt.vstack
  import kotlin.test.Test
  import kotlin.test.assertEquals
  
  class TestStackingArrays {
  
      @Test
      fun testStackTwoArrays() {
          val checkVStack = array(arrayOf(0, 1, 2, 3, 4, 5, 6, 7)).reshape(4, 2)
          val checkHStack = array(arrayOf(0, 1, 4, 5, 2, 3, 6, 7)).reshape(2, 4)
  
          val a = array(arrayOf(0, 1, 2, 3)).reshape(2, 2)
  
          val b = array(arrayOf(4, 5, 6, 7)).reshape(2, 2)
  
          println(a)
          println(b)
  
          println("vstack:")
          println(vstack(a, b))
          assertEquals(checkVStack, vstack(a, b))
  
          println("hstack:")
          println(hstack(a, b))
          assertEquals(checkHStack, hstack(a, b))
      }
  
      @Test
      fun testNewAxis() {
          val a = array(arrayOf(0, 1, 2, 3)).reshape(2, 2)
          val b = array(arrayOf(4, 5, 6, 7)).reshape(2, 2)
  
          println(columnStack(a, b))
  
          val q = array(arrayOf(4.0, 2.0))
          val w = array(arrayOf(3.0, 8.0))
  
          println(columnStack(q, w))
          println(hstack(q, w))
      }
  }