public void IsValidBSTTest_MinInt()
{
var solution = new _098_ValidateBinarySearchTree();
Assert.IsTrue(solution.IsValidBST(TestHelper.GenerateTree(new int?[] { int.MinValue })));
Assert.IsFalse(solution.IsValidBST(TestHelper.GenerateTree(new int?[] { int.MinValue, int.MinValue })));
}
public void IsValidBSTTest()
{
var solution = new _098_ValidateBinarySearchTree();
Assert.IsTrue(solution.IsValidBST(TestHelper.GenerateTree(new int?[] { 2, 1, 3 })));
}
public void IsValidBSTTest_Empty()
{
var solution = new _098_ValidateBinarySearchTree();
Assert.IsTrue(solution.IsValidBST(null));
}
public void IsValidBSTTest_Invalid_2Layer()
{
var solution = new _098_ValidateBinarySearchTree();
Assert.IsFalse(solution.IsValidBST(TestHelper.GenerateTree(new int?[] { 5, 1, 6, null, null, 3, 8 })));
}