new_contents: from cycli.table import isnumeric, col_widths
  import pytest
  
  @pytest.mark.parametrize(("number", "answer"), [
      ("12", True),
      ("12.3", True),
      ("0", True),
      ("1.1.0", False),
      ("Hell0", False),
      ("Hello", False)
  ])
  def test_isnumeric(number, answer):
      assert isnumeric(number) == answer
  
  @pytest.mark.parametrize(("headers", "rows", "answer"), [
      (["a", "bc"], [["a", "b"], ["a", "b"]], [1, 2]),
      (["ab", "c"], [["a", "b"], ["a", "b"]], [2, 1]),
      (["a", "b"], [["a", "bc"], ["a", "b"]], [1, 2]),
      (["a", "b"], [["ab", "c"], ["a", "b"]], [2, 1]),
      (["a", "b"], [["", ""], ["a", "a"]], [1, 1])
  ])
  def test_col_widths(headers, rows, answer):
      assert col_widths(headers, rows) == answer
subject: Add tests for functions in table.py :construction: