def test_prev_for(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
self.assertEqual(l.next_for('two'), 'three')
def test_clear(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
self.assertEqual(len(l), 3)
l.clear()
self.assertEqual(len(l), 0)
def test_first_last(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
self.assertEqual(l.first(), ('one', 10))
self.assertEqual(l.last(), ('three', 30))
def test_get(self):
l = LinkedMap()
self.assertEqual(len(l), 0)
l['one'] = 10
self.assertEqual(len(l), 1)
self.assertEqual(l['one'], 10)
def test_iter_reverse(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
res = zip(reversed(l), reversed(items))
print([x for x in res])
self.assertTrue(
all([x[0][0] == x[1][0] and x[0][1] == x[1][1] for x in res]))
def test_iter(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
res = zip([x for x in l], items)
self.assertTrue(
all([x[0][0] == x[1][0] and x[0][1] == x[1][1] for x in res]))
def test_delete(self):
l = LinkedMap()
items = [['one', 10], ['two', 20], ['three', 30]]
for elem in items:
l[elem[0]] = elem[1]
del l['two']
self.assertEqual(len(l), 2)
res = zip([x for x in l], [x for x in items if x[0] != 'two'])
self.assertTrue(
all([x[0][0] == x[1][0] and x[0][1] == x[1][1] for x in res]))
def test_from_list(self):
l = LinkedMap([['one', 10], ['two', 20], ['three', 30]])
self.assertEqual(len(l), 3)