Refactor to prevent warnings from test_numpy

nipy/labs/bindings/tests/test_numpy.py

@@ -71,6 +71,7 @@ def test_copy_vector_contiguous():
     x = (1000*np.random.rand(int(1e6))).astype('int32')
     _test_copy_vector(x)
 
+
 def test_copy_vector_strided():
     x0 = (1000*np.random.rand(int(2e6))).astype('int32')
     x = x0[::2]
@@ -93,18 +94,22 @@ def _test_pass_vector(x):
     assert_array_equal(y, x)
 
 
+def _rs1():
+    return random_shape(1)[0]
+
+
 def test_pass_vector():
-    x = np.random.rand(int(random_shape(1)))-.5
+    x = np.random.rand(_rs1()) - .5
     _test_pass_vector(x)
 
 
 def test_pass_vector_int32():
-    x = (1000*(np.random.rand(int(random_shape(1)))-.5)).astype('int32')
+    x = (1000*(np.random.rand(_rs1()) - .5)).astype('int32')
     _test_pass_vector(x)
 
 
 def test_pass_vector_uint8():
-    x = (256*(np.random.rand(int(random_shape(1))))).astype('uint8')
+    x = (256*(np.random.rand(_rs1()))).astype('uint8')
     _test_pass_vector(x)