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Add a test for data truncation when creating array from sequence of mixed numeric and string values #173

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Add a test for data truncation when creating array from sequence of mixed numeric and string values #173

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10 changes: 10 additions & 0 deletions numpy/core/tests/test_regression.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1611,5 +1611,15 @@ def test_assign_obj_listoflists(self):
a[...] = [[1,2]]
assert_equal(a, [[1,2], [1,2]])

def test_string_truncation(self):
# Ticket #1990 - Data can be truncated in creation of an array from a
# mixed sequence of numeric values and strings
for numericval in [True, 1234, 123.4, complex(1, 234)]:
for stringconversion in [str, unicode, bytes]:
b = np.array([numericval, stringconversion('xx')])
assert_equal(stringconversion(b[0]), stringconversion(numericval))
b = np.array([stringconversion('xx'), numericval])
assert_equal(stringconversion(b[1]), stringconversion(numericval))

if __name__ == "__main__":
run_module_suite()