73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
from __future__ import annotations
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from typing import Any
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from hooked_containers.sequence import HookedList
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def get_id(a: Any):
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return str(hex(id(a)))
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class TestHookedList:
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class TestConstruction:
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def test_empty(self):
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lst = HookedList(existing=[])
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assert list(lst) == []
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def test_with_items(self):
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lst = HookedList(existing=[1, 2, 3])
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assert list(lst) == [1, 2, 3]
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def test_recreation(self):
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initial = [1, 2, 3]
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initial_id = id(initial)
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lst = HookedList(existing=initial)
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assert id(lst._data) == initial_id
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lst2 = HookedList(existing=lst)
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assert id(lst2._data) == initial_id
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class TestSeqOps:
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def test_len(self):
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lst = HookedList(existing=[1, 2, 3])
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assert len(lst) == 3
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def test_getitem(self):
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lst = HookedList(existing=[1, 2, 3])
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assert lst[0] == 1
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assert lst[1] == 2
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assert lst[-1] == 3
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def test_contains(self):
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lst = HookedList(existing=[1, 2, 3])
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assert 2 in lst
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assert 4 not in lst
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def test_iter(self):
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lst = HookedList(existing=[1, 2, 3])
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for i, item in enumerate(lst, start=1):
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assert item == i
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class TestMutableOps:
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def test_setitem(self):
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added = []
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lst = HookedList([1, 2, [4, 5, [6, 7]]], lambda e: added.append(e.item))
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lst[0] = 10
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lst.append(20)
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assert added == [10, 20]
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lst[2][-1].append(8)
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assert added == [10, 20, 8]
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def test_delitem(self):
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lst = HookedList(existing=[1, 2, 3])
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del lst[1]
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assert list(lst) == [1, 3]
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def test_insert(self):
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lst = HookedList(existing=[1, 3])
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lst.insert(1, 2)
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assert list(lst) == [1, 2, 3]
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