Пример #1
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def test_first():
    assert reciprocal(1) == 1
Пример #2
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def test_reciprocal_0():
    assert reciprocal(0) == "error"
Пример #3
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def test_reciprocal_minus_2():
    assert reciprocal(-2) == -0.5
Пример #4
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def test_reciprocal_1():
    assert reciprocal(1) == 1
Пример #5
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def test_reciprocal(x, y):
    assert reciprocal(x) == y