def test_adjacent_false():
"""Test if returns false."""
from simple_graph import Graph
graph = Graph()
graph.add_node('chicken')
graph.add_node('egg')
assert graph.adjacent('egg', 'chicken') is False
def test_adjacent(key, value):
from simple_graph import Graph
new_graph = Graph()
node1 = new_graph.add_node(key)
node2 = new_graph.add_node(value)
new_graph.add_edge(node1, node2)
assert new_graph.adjacent(node1, node2) is True
def test_adjacent(key, value):
from simple_graph import Graph
new_graph = Graph()
node1 = new_graph.add_node(key)
node2 = new_graph.add_node(value)
new_graph.add_edge(node1, node2)
assert new_graph.adjacent(node1, node2) is True
def test_adjacent_false():
"""Test if returns false."""
from simple_graph import Graph
graph = Graph()
graph.add_node('chicken')
graph.add_node('egg')
assert graph.adjacent('egg', 'chicken') is False
def test_adjacent_true():
"""Test if node returns true."""
from simple_graph import Graph
graph = Graph()
graph.add_node('chicken')
graph.add_node('egg')
graph.add_edge('egg', 'chicken')
assert graph.adjacent('egg', 'chicken') is True
def test_adjacent_true():
"""Test if node returns true."""
from simple_graph import Graph
graph = Graph()
graph.add_node('chicken')
graph.add_node('egg')
graph.add_edge('egg', 'chicken')
assert graph.adjacent('egg', 'chicken') is True