def test_empty_append(self):
lht = LinkedHashTable()
k, v = 'some key', b'a thicc value'
lht.append(k, v)
self.assertTrue(k in lht)
self.assertEquals(lht._last.value, v)
self.assertEquals(lht._first.value, v)
self.assertEquals(len(lht), 1)
def test_clear(self):
lht = LinkedHashTable()
k, v = 'some key', b'a thicc value'
k2, v2 = 'another key', b'a thiccer value'
k3, v3 = 'anotha one!', b'a thiccest value'
k4, v4 = 'yet another one', b'a thiccerest value'
lht.append(k, v)
lht.append(k2, v2)
lht.append(k3, v3)
lht.append(k4, v4)
lht.clear()
self.assertEquals(len(lht), 0)
self.assertEquals(lht._last, None)
self.assertEquals(lht._first, None)
def test_popleft(self):
lht = LinkedHashTable()
k, v = 'some key', b'a thicc value'
k2, v2 = 'another key', b'a thiccer value'
k3, v3 = 'anotha one!', b'a thiccest value'
k4, v4 = 'yet another one', b'a thiccerest value'
lht.append(k, v)
lht.append(k2, v2)
lht.append(k3, v3)
lht.append(k4, v4)
item = lht.pop_front()
self.assertEquals(item[1], v)
self.assertEquals(lht._first.value, v2)
self.assertEquals(lht._last.value, v4)
self.assertEquals(len(lht), 3)
def test_nonempty_append(self):
lht = LinkedHashTable()
k, v = 'some key', b'a thicc value'
k2, v2 = 'another key', b'a thiccer value'
k3, v3 = 'anotha one!', b'a thiccest value'
k4, v4 = 'yet another one', b'a thiccerest value'
lht.append(k, v)
lht.append(k2, v2)
lht.append(k3, v3)
lht.append(k4, v4)
for _k in (k, k2, k3):
self.assertTrue(_k in lht)
self.assertEquals(lht._first.value, v)
self.assertEquals(lht._last.value, v4)
self.assertEquals(lht._first.next.value, v2)
self.assertEquals(lht._last.previous.value, v3)
self.assertEquals(len(lht), 4)
def test_remove_inner(self):
lht = LinkedHashTable()
k, v = 'some key', b'a thicc value'
k2, v2 = 'another key', b'a thiccer value'
k3, v3 = 'anotha one!', b'a thiccest value'
k4, v4 = 'yet another one', b'a thiccerest value'
lht.append(k, v)
lht.append(k2, v2)
lht.append(k3, v3)
lht.append(k4, v4)
item = lht.remove(k2)
self.assertEquals(item, v2)
self.assertEquals(lht._last.value, v4)
self.assertEquals(lht._first.value, v)
self.assertEquals(lht._first.next.value, v3)
self.assertEquals(lht._last.previous.value, v3)
self.assertEquals(lht._last.previous.previous.value, v)
self.assertEquals(len(lht), 3)