public void ShouldByNull()
{
//Arrange
var sut = new BuildBinary(); //sut: system under test
var array = new int?[] { null };
//Act
var head = sut.CreateBinaryTree(array);
//Assert
Assert.Null(head);
}
public void TestCreateBinaryTreeWithNull()
{
//Arrange
var sut = new BuildBinary(); //sut: system under test
var array = new int?[] { 1, 2, 3, 4, null, 6, 7, 8, 9 };
//Act
var head = sut.CreateBinaryTree(array);
//Assert
Assert.Equal(1, head.Value);
Assert.Equal(2, head.LeftChild.Value);
Assert.Equal(3, head.RightChild.Value);
}
public void TestCreateBinaryTree()
{
//Arrange
var sut = new BuildBinary(); //sut: system under test
var array = new int?[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
//Act
var head = sut.CreateBinaryTree(array);
//Assert
Assert.Equal(1, head.Value);
Assert.Equal(2, head.LeftChild.Value);
Assert.Equal(3, head.RightChild.Value);
Assert.Equal(4, head.LeftChild.LeftChild.Value);
Assert.Equal(5, head.LeftChild.RightChild.Value);
Assert.Equal(6, head.RightChild.LeftChild.Value);
Assert.Equal(7, head.RightChild.RightChild.Value);
Assert.Equal(8, head.LeftChild.LeftChild.LeftChild.Value);
Assert.Equal(9, head.LeftChild.LeftChild.RightChild.Value);
Assert.Equal(10, head.LeftChild.RightChild.LeftChild.Value);
}