73 lines
1.8 KiB
Python
73 lines
1.8 KiB
Python
# test set binary operations
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sets = [set(), {1}, {1, 2}, {1, 2, 3}, {2, 3}, {2, 3, 5}, {5}, {7}]
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for s in sets:
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for t in sets:
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print(sorted(s), '|', sorted(t), '=', sorted(s | t))
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print(sorted(s), '^', sorted(t), '=', sorted(s ^ t))
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print(sorted(s), '&', sorted(t), '=', sorted(s & t))
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print(sorted(s), '-', sorted(t), '=', sorted(s - t))
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u = s.copy()
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u |= t
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print(sorted(s), "|=", sorted(t), '-->', sorted(u))
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u = s.copy()
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u ^= t
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print(sorted(s), "^=", sorted(t), '-->', sorted(u))
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u = s.copy()
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u &= t
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print(sorted(s), "&=", sorted(t), "-->", sorted(u))
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u = s.copy()
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u -= t
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print(sorted(s), "-=", sorted(t), "-->", sorted(u))
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print(sorted(s), '==', sorted(t), '=', s == t)
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print(sorted(s), '!=', sorted(t), '=', s != t)
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print(sorted(s), '>', sorted(t), '=', s > t)
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print(sorted(s), '>=', sorted(t), '=', s >= t)
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print(sorted(s), '<', sorted(t), '=', s < t)
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print(sorted(s), '<=', sorted(t), '=', s <= t)
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print(set('abc') == 1)
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# make sure inplace operators modify the set
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s1 = s2 = set('abc')
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s1 |= set('ad')
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print(s1 is s2, len(s1))
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s1 = s2 = set('abc')
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s1 ^= set('ad')
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print(s1 is s2, len(s1))
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s1 = s2 = set('abc')
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s1 &= set('ad')
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print(s1 is s2, len(s1))
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s1 = s2 = set('abc')
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s1 -= set('ad')
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print(s1 is s2, len(s1))
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# RHS must be a set
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try:
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print(set('12') >= '1')
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except TypeError:
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print('TypeError')
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# RHS must be a set
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try:
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print(set('12') <= '123')
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except TypeError:
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print('TypeError')
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# unsupported operator
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try:
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set('abc') * set('abc')
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except TypeError:
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print('TypeError')
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# unsupported operator with RHS not a set
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try:
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set('abc') * 2
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except TypeError:
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print('TypeError')
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