 
     test "lonely cell dies" do
       cells = [
-        "     ",
-        "  ▊  ",
-        "     "
+        "   ",
+        " ▊ ",
+        "   "
       ]
       assert @death == GoL.evolve cells
     end
 
     test "isolated pair dies" do
       cells = [
-        "▊    ",
-        " ▊   ",
-        "     "
+        "▊  ",
+        " ▊ ",
+        "   "
       ]
       assert @death == GoL.evolve cells
     end

  describe "death" do

    @death [
      "     ",
      "     ",
      "     "
    ]

    test "dead stays dead" do


    test "triangle" do
      cells = [
        " ▊ ▊ ",
        "     ",
        "  ▊  "
      ]
      result = [
        "     ",
        "  ▊  ",
        "     "
      ]
      assert result == GoL.evolve cells
    end
