Пример #1
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def test_explain_binary(_, op):
    left = "_ {op} 1".format(op=op)
    sym = eval(left, {'_': _})

    assert explain(sym) == left

    right = "1 {op} _".format(op=op)
    sym = eval(right, {'_': _})

    assert explain(sym) == right
Пример #2
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def test_explain_unary(_, code):
    sym = eval(code, {'_': _})

    assert explain(sym) == code
Пример #3
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def test_explain_failures(_, expr):
    sym = eval(expr, {'_': _})
    assert explain(sym) != expr
Пример #4
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def test_source_attr(_):
    sym = _.source
    assert isinstance(sym, Symbolic)
    assert explain(sym) == "_.source"
Пример #5
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def test_explain_other(_, expr):
    sym = eval(expr, {'_': _})
    assert explain(sym) == expr