145 lines
2.3 KiB
Python
145 lines
2.3 KiB
Python
import pytest
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import babi
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def test_list_spy_repr():
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assert repr(babi.ListSpy(['a', 'b', 'c'])) == "ListSpy(['a', 'b', 'c'])"
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def test_list_spy_item_retrieval():
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spy = babi.ListSpy(['a', 'b', 'c'])
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assert spy[1] == 'b'
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assert spy[-1] == 'c'
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with pytest.raises(IndexError):
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spy[3]
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def test_list_spy_del():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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del spy[1]
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assert lst == ['a', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_del_with_negative():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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del spy[-1]
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assert lst == ['a', 'b']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_insert():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy.insert(1, 'q')
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assert lst == ['a', 'q', 'b', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_insert_with_negative():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy.insert(-1, 'q')
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assert lst == ['a', 'b', 'q', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_set_value():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy[1] = 'hello'
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assert lst == ['a', 'hello', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_multiple_modifications():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy[1] = 'hello'
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spy.insert(1, 'ohai')
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del spy[0]
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assert lst == ['ohai', 'hello', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_iter():
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spy = babi.ListSpy(['a', 'b', 'c'])
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spy_iter = iter(spy)
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assert next(spy_iter) == 'a'
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assert next(spy_iter) == 'b'
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assert next(spy_iter) == 'c'
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with pytest.raises(StopIteration):
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next(spy_iter)
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def test_list_spy_append():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy.append('q')
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assert lst == ['a', 'b', 'c', 'q']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_pop_default():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy.pop()
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assert lst == ['a', 'b']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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def test_list_spy_pop_idx():
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lst = ['a', 'b', 'c']
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spy = babi.ListSpy(lst)
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spy.pop(1)
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assert lst == ['a', 'c']
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spy.undo(lst)
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assert lst == ['a', 'b', 'c']
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