Import and use unittest

Author: isuruf

symengine/tests/test_matrices.py

@@ -3,13 +3,14 @@
     Rational, function_symbol, I, NonSquareMatrixError, ShapeError, zeros,
     ones, eye, ImmutableMatrix)
 from symengine.test_utilities import raises
+import unittest
 
 
 try:
     import numpy as np
-    HAVE_NUMPY = True
+    have_numpy = True
 except ImportError:
-    HAVE_NUMPY = False
+    have_numpy = False
 
 try:
     import sympy
@@ -529,21 +530,18 @@ def test_reshape():
     assert C != A
 
 
-# @pytest.mark.skipif(not HAVE_NUMPY, reason='requires numpy')
+@unittest.skipIf(not have_numpy, 'requires numpy')
 def test_dump_real():
-    if not HAVE_NUMPY:  # nosetests work-around
-        return
     ref = [1, 2, 3, 4]
     A = DenseMatrix(2, 2, ref)
     out = np.empty(4)
     A.dump_real(out)
     assert np.allclose(out, ref)
 
 
-# @pytest.mark.skipif(not HAVE_NUMPY, reason='requires numpy')
+
+@unittest.skipIf(not have_numpy, 'requires numpy')
 def test_dump_complex():
-    if not HAVE_NUMPY:  # nosetests work-around
-        return
     ref = [1j, 2j, 3j, 4j]
     A = DenseMatrix(2, 2, ref)
     out = np.empty(4, dtype=np.complex128)