Open essepuntato opened 4 years ago
from anytree import Node
def breadth_first_visit(root_node):
discovered_nodes = [root_node]
visited_nodes = []
while discovered_nodes:
current_node = discovered_nodes.pop(0)
visited_nodes.append(current_node)
if current_node.children:
for child in current_node.children:
discovered_nodes.append(child)
return visited_nodes
def test_breadth_first_visit(root_node, expected):
result = breadth_first_visit(root_node)
if result == expected:
return True
else:
return False
book = Node("book")
chapter_1 = Node("chapter", book)
chapter_2 = Node("chapter", book)
paragraph_1 = Node("paragraph", chapter_1)
text_1 = Node("Alice was beginning to get very tired of sitting by "
"her sister on the bank, and of having nothing to do: "
"once or twice she had peeped into the book her sister "
"was reading, but it had no pictures or conversations "
"in it, ", paragraph_1)
quotation_1 = Node("quotation", paragraph_1)
text_2 = Node("“and what is the use of a book,”", quotation_1)
text_3 = Node(" thought Alice, ", paragraph_1)
quotation_2 = Node("quotation", paragraph_1)
text_4 = Node("“without pictures or conversations?”", quotation_2)
paragraph_2 = Node("paragraph", chapter_1)
text_5 = Node("So she was considering in her own mind, (as well as "
"she could, for the hot day made her feel very sleepy "
"and stupid,) whether the pleasure of making a "
"daisy-chain would be worth the trouble of getting up "
"and picking the daisies, when suddenly a white rabbit "
"with pink eyes ran close by her.", paragraph_2)
paragraph_3 = Node("paragraph", chapter_1)
text_6 = Node("...", paragraph_3)
text_7 = Node("...", chapter_2)
text_8 = Node("...", book)
print(test_breadth_first_visit(book, [book, chapter_1, chapter_2, text_8, paragraph_1, paragraph_2, paragraph_3, text_7, text_1, quotation_1, text_3, quotation_2, text_5, text_6, text_2, text_4])) # True
print(test_breadth_first_visit(chapter_2, [chapter_2, text_7])) # True
print(test_breadth_first_visit(text_1, [text_1])) # True
Am I missing another type of test case?
from anytree import Node, RenderTree
book = Node("book")
chapter_1 = Node("chapter", book)
chapter_2 = Node("chapter", book)
paragraph_1 = Node("paragraph", chapter_1)
text_1 = Node("Alice was beginning to get very tired of sitting by "
"her sister on the bank, and of having nothing to do: "
"once or twice she had peeped into the book her sister "
"was reading, but it had no pictures or conversations "
"in it, ", paragraph_1)
quotation_1 = Node("quotation", paragraph_1)
text_2 = Node("“and what is the use of a book,”", quotation_1)
text_3 = Node(" thought Alice, ", paragraph_1)
quotation_2 = Node("quotation", paragraph_1)
text_4 = Node("“without pictures or conversations?”", quotation_2)
paragraph_2 = Node("paragraph", chapter_1)
text_5 = Node("So she was considering in her own mind, (as well as "
"she could, for the hot day made her feel very sleepy "
"and stupid,) whether the pleasure of making a "
"daisy-chain would be worth the trouble of getting up "
"and picking the daisies, when suddenly a white rabbit "
"with pink eyes ran close by her.", paragraph_2)
paragraph_3 = Node("paragraph", chapter_1)
text_6 = Node(". . .", paragraph_3)
text_7 = Node(". . .", chapter_2)
text_8 = Node(". . .", book)
def test_breadth_first_visit(root_node, expected):
result = breadth_first_visit(root_node)
if result == expected:
return True
else:
return False
def breadth_first_visit(root_node):
node_list = []
base_node = [root_node]
while base_node:
other_node = base_node.pop(0)
node_list.append(other_node)
if other_node.children:
for child in other_node.children:
base_node.append(child)
return node_list
print(test_breadth_first_visit(book, [book, chapter_1, chapter_2, text_8, paragraph_1, paragraph_2, paragraph_3, text_7, text_1, quotation_1, text_3, quotation_2, text_5, text_6, text_2, text_4]))
from anytree import Node
def test_breadth_first_visit(root_node, expected):
result = breadth_first_visit(root_node)
if result == expected:
return True
else:
return False
def breadth_first_visit(root):
lst = list()
lst.append(root)
for item in lst:
lst.extend(item.children)
return lst
book = Node("book")
chapter_1 = Node("chapter", book)
chapter_2 = Node("chapter", book)
paragraph_1 = Node("paragraph", chapter_1)
text_1 = Node("Alice was beginning to get very tired of sitting by "
"her sister on the bank, and of having nothing to do: "
"once or twice she had peeped into the book her sister "
"was reading, but it had no pictures or conversations "
"in it, ", paragraph_1)
quotation_1 = Node("quotation", paragraph_1)
text_2 = Node("“and what is the use of a book,”", quotation_1)
text_3 = Node(" thought Alice, ", paragraph_1)
quotation_2 = Node("quotation", paragraph_1)
text_4 = Node("“without pictures or conversations?”", quotation_2)
paragraph_2 = Node("paragraph", chapter_1)
text_5 = Node("So she was considering in her own mind, (as well as "
"she could, for the hot day made her feel very sleepy "
"and stupid,) whether the pleasure of making a "
"daisy-chain would be worth the trouble of getting up "
"and picking the daisies, when suddenly a white rabbit "
"with pink eyes ran close by her.", paragraph_2)
paragraph_3 = Node("paragraph", chapter_1)
text_6 = Node("...", paragraph_3)
text_7 = Node("...", chapter_2)
text_8 = Node("...", book)
print(test_breadth_first_visit(book, [book, chapter_1, chapter_2, text_8, paragraph_1, paragraph_2, paragraph_3, text_7, text_1, quotation_1, text_3, quotation_2, text_5, text_6, text_2, text_4]))
I just understood @NoonShin solution and changed the names of the variables with more semantic names.
from anytree import Node
def test_breadth_first_visit(root, expected):
if breadth_first_visit(root) == expected:
return True
else:
return False
def breadth_first_visit(root):
visited_nodes = list()
visited_nodes.append(root)
for node in visited_nodes:
visited_nodes.extend(node.children)
return visited_nodes
book = Node("book")
chapter_1 = Node("chapter", book)
chapter_2 = Node("chapter", book)
paragraph_1 = Node("paragraph", chapter_1)
text_1 = Node("Alice was beginning to get very tired of sitting by "
"her sister on the bank, and of having nothing to do: "
"once or twice she had peeped into the book her sister "
"was reading, but it had no pictures or conversations "
"in it, ", paragraph_1)
quotation_1 = Node("quotation", paragraph_1)
text_2 = Node("“and what is the use of a book,”", quotation_1)
text_3 = Node(" thought Alice, ", paragraph_1)
quotation_2 = Node("quotation", paragraph_1)
text_4 = Node("“without pictures or conversations?”", quotation_2)
paragraph_2 = Node("paragraph", chapter_1)
text_5 = Node("So she was considering in her own mind, (as well as "
"she could, for the hot day made her feel very sleepy "
"and stupid,) whether the pleasure of making a "
"daisy-chain would be worth the trouble of getting up "
"and picking the daisies, when suddenly a white rabbit "
"with pink eyes ran close by her.", paragraph_2)
paragraph_3 = Node("paragraph", chapter_1)
text_6 = Node("...", paragraph_3)
text_7 = Node("...", chapter_2)
text_8 = Node("...", book)
print(test_breadth_first_visit(book, [book, chapter_1, chapter_2, text_8, paragraph_1, paragraph_2, paragraph_3, text_7, text_1, quotation_1, text_3, quotation_2, text_5, text_6, text_2, text_4]))
Hi all,
please find attached my personal solution – also available online:
# Test case for the function
def test_breadth_first_visit(root_node, expected):
result = breadth_first_visit(root_node)
if expected == result:
return True
else:
return False
# Code of the function
def breadth_first_visit(root_node):
result = list()
to_visit = deque()
to_visit.append(root_node)
while to_visit:
node_to_visit = to_visit.popleft()
result.append(node_to_visit)
to_visit.extend(node_to_visit.children)
return result
# Tests
book = Node("book")
chapter_1 = Node("chapter1", book)
chapter_2 = Node("chapter2", book)
paragraph_1 = Node("paragraph1", chapter_1)
text_1 = Node("text1", paragraph_1)
quotation_1 = Node("quotation1", paragraph_1)
text_2 = Node("text2", quotation_1)
text_3 = Node("text3", paragraph_1)
quotation_2 = Node("quotation2", paragraph_1)
text_4 = Node("text4", quotation_2)
paragraph_2 = Node("paragraph2", chapter_1)
text_5 = Node("text5", paragraph_2)
paragraph_3 = Node("paragraph3", chapter_1)
text_6 = Node("text6", paragraph_3)
text_7 = Node("text7", chapter_2)
text_8 = Node("text8", book)
bfv = [book,
chapter_1, chapter_2, text_8,
paragraph_1, paragraph_2, paragraph_3, text_7,
text_1, quotation_1, text_3, quotation_2, text_5, text_6,
text_2, text_4]
print(test_breadth_first_visit(book, bfv))
Write in Python the pure iterative version of the function defined in the previous exercise.