readData = [
  ("x,y+1",
    {- shouldBe -}
    fromLists [
      [1,0,0],
      [0,1,1],
      [0,0,1]]),
  ("+x+y+2,+x+y+3",
    {- shouldBe -}
    fromLists [
      [1,1,2],
      [1,1,3],
      [0,0,1]])
  ]
readData = [
  ("x,y+1",
    {- shouldBe -}
    fromLists [
      [1,0,0],
      [0,1,1],
      [0,0,1]]),
  ("+x+y+2,+x+y+3",
    {- shouldBe -}
    fromLists [
      [1,1,2],
      [1,1,3],
      [0,0,1]])
  ]
readData = [
  ("x,y+1",
    {- shouldBe -}
    fromLists [
      [1,0,0],
      [0,1,1],
      [0,0,1]]),
  ("+x+y+2,+x+y+3",
    {- shouldBe -}
    fromLists [
      [1,1,2],
      [1,1,3],
      [0,0,1]])
  ]