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57365d8557
Array equality is defined as each element being equal but to keep code size down MicroPython implements a binary comparison. This can only be used correctly for elements with the same binary layout though so turn it into an NotImplementedError when comparing types for which the binary comparison yielded incorrect results: types with different sizes, and floating point numbers because nan != nan.
69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
try:
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import uarray as array
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except ImportError:
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try:
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import array
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except ImportError:
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print("SKIP")
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raise SystemExit
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a = array.array('B', [1, 2, 3])
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print(a, len(a))
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i = array.array('I', [1, 2, 3])
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print(i, len(i))
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print(a[0])
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print(i[-1])
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a = array.array('l', [-1])
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print(len(a), a[0])
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a1 = array.array('l', [1, 2, 3])
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a2 = array.array('L', [1, 2, 3])
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print(a2[1])
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print(a1 == a2)
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# Empty arrays
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print(len(array.array('h')))
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print(array.array('i'))
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# bool operator acting on arrays
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print(bool(array.array('i')))
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print(bool(array.array('i', [1])))
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# containment, with incorrect type
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print('12' in array.array('B', b'12'))
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print([] in array.array('B', b'12'))
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# bad typecode
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try:
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array.array('X')
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except ValueError:
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print("ValueError")
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# equality (CPython requires both sides are array)
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print(bytes(array.array('b', [0x61, 0x62, 0x63])) == b'abc')
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print(array.array('b', [0x61, 0x62, 0x63]) == b'abc')
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print(array.array('B', [0x61, 0x62, 0x63]) == b'abc')
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print(array.array('b', [0x61, 0x62, 0x63]) != b'abc')
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print(array.array('b', [0x61, 0x62, 0x63]) == b'xyz')
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print(array.array('b', [0x61, 0x62, 0x63]) != b'xyz')
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print(b'abc' == array.array('b', [0x61, 0x62, 0x63]))
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print(b'abc' == array.array('B', [0x61, 0x62, 0x63]))
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print(b'abc' != array.array('b', [0x61, 0x62, 0x63]))
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print(b'xyz' == array.array('b', [0x61, 0x62, 0x63]))
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print(b'xyz' != array.array('b', [0x61, 0x62, 0x63]))
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compatible_typecodes = []
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for t in ["b", "h", "i", "l", "q"]:
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compatible_typecodes.append((t, t))
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compatible_typecodes.append((t, t.upper()))
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for a, b in compatible_typecodes:
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print(array.array(a, [1, 2]) == array.array(b, [1, 2]))
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class X(array.array):
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pass
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print(bytes(X('b', [0x61, 0x62, 0x63])) == b'abc')
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print(X('b', [0x61, 0x62, 0x63]) == b'abc')
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print(X('b', [0x61, 0x62, 0x63]) != b'abc')
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print(X('b', [0x61, 0x62, 0x63]) == array.array('b', [0x61, 0x62, 0x63]))
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print(X('b', [0x61, 0x62, 0x63]) != array.array('b', [0x61, 0x62, 0x63]))
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