public void FixedInt()
 {
     var fa = new FormulaAnalyzer("3");
     var nums = fa.Numbers().ToList();
     CollectionAssert.Contains(nums, 3.0);
     Assert.AreEqual(1, nums.Count());
 }
        public void FixedNumbers()
        {
            var fa = new FormulaAnalyzer("SUM(A1,3.1+4)");
            var nums = fa.Numbers().ToList();

            CollectionAssert.Contains(nums, 3.1);
            CollectionAssert.Contains(nums, 4.0);
            Assert.AreEqual(2, nums.Count());
        }
 public void Duplicate()
 {
     var fa = new FormulaAnalyzer("3+3");
     var nums = fa.Numbers().ToList();
     Assert.AreEqual(2, nums.Count());
 }
 public void NoFixedNumbers()
 {
     var fa = new FormulaAnalyzer("A1+B2");
     var nums = fa.Numbers().ToList();
     Assert.AreEqual(0, nums.Count());
 }
 public void NegativeNumber()
 {
     var fa = new FormulaAnalyzer("=-8+A1");
     var nums = fa.Numbers().ToList();
     CollectionAssert.AreEqual(new[] { -8.0 }, nums);
 }