36 lines
1.0 KiB
Python
36 lines
1.0 KiB
Python
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"""
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rename this to test_assumptions.py when the old assumptions system is deleted
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"""
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from sympy.abc import x, y
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from sympy.assumptions.assume import global_assumptions
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from sympy.assumptions.ask import Q
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from sympy.printing import pretty
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def test_equal():
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"""Test for equality"""
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assert Q.positive(x) == Q.positive(x)
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assert Q.positive(x) != ~Q.positive(x)
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assert ~Q.positive(x) == ~Q.positive(x)
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def test_pretty():
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assert pretty(Q.positive(x)) == "Q.positive(x)"
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assert pretty(
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{Q.positive, Q.integer}) == "{Q.integer, Q.positive}"
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def test_global():
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"""Test for global assumptions"""
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global_assumptions.add(x > 0)
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assert (x > 0) in global_assumptions
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global_assumptions.remove(x > 0)
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assert not (x > 0) in global_assumptions
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# same with multiple of assumptions
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global_assumptions.add(x > 0, y > 0)
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assert (x > 0) in global_assumptions
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assert (y > 0) in global_assumptions
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global_assumptions.clear()
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assert not (x > 0) in global_assumptions
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assert not (y > 0) in global_assumptions
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