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""" Testing miobase module """ import numpy as np from numpy.testing import assert_raises, assert_equal from scipy.io.matlab.miobase import matdims def test_matdims(): # Test matdims dimension finder assert_equal(matdims(np.array(1)), (1, 1)) # numpy scalar assert_equal(matdims(np.array([1])), (1, 1)) # 1d array, 1 element assert_equal(matdims(np.array([1,2])), (2, 1)) # 1d array, 2 elements assert_equal(matdims(np.array([[2],[3]])), (2, 1)) # 2d array, column vector assert_equal(matdims(np.array([[2,3]])), (1, 2)) # 2d array, row vector # 3d array, rowish vector assert_equal(matdims(np.array([[[2,3]]])), (1, 1, 2)) assert_equal(matdims(np.array([])), (0, 0)) # empty 1d array assert_equal(matdims(np.array([[]])), (0, 0)) # empty 2d assert_equal(matdims(np.array([[[]]])), (0, 0, 0)) # empty 3d # Optional argument flips 1-D shape behavior. assert_equal(matdims(np.array([1,2]), 'row'), (1, 2)) # 1d array, 2 elements # The argument has to make sense though assert_raises(ValueError, matdims, np.array([1,2]), 'bizarre') # Check empty sparse matrices get their own shape from scipy.sparse import csr_matrix, csc_matrix assert_equal(matdims(csr_matrix(np.zeros((3, 3)))), (3, 3)) assert_equal(matdims(csc_matrix(np.zeros((2, 2)))), (2, 2))
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