Don't use new subplots() call in matplotlib so tests pass with mpl 0.99

IPython/lib/tests/test_pylabtools.py

@@ -1,53 +1,54 b''
 """Tests for pylab tools module.
 """
 #-----------------------------------------------------------------------------
 # Copyright (c) 2011, the IPython Development Team.
 #
 # Distributed under the terms of the Modified BSD License.
 #
 # The full license is in the file COPYING.txt, distributed with this software.
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 from __future__ import print_function
 
 # Stdlib imports
 
 # Third-party imports
 import matplotlib; matplotlib.use('Agg')
 import nose.tools as nt
 
 from matplotlib import pyplot as plt
 
 # Our own imports
 from IPython.testing import decorators as dec
 from .. import pylabtools as pt
 
 #-----------------------------------------------------------------------------
 # Globals and constants
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Local utilities
 #-----------------------------------------------------------------------------
 
 #-----------------------------------------------------------------------------
 # Classes and functions
 #-----------------------------------------------------------------------------
 
 @dec.parametric
 def test_figure_to_svg():
     # simple empty-figure test
     fig = plt.figure()
     yield nt.assert_equal(pt.figure_to_svg(fig), None)
 
     plt.close('all')
 
     # simple check for at least svg-looking output
-    fig, ax = plt.subplots()
+    fig = plt.figure()
+    ax = fig.add_subplot(1,1,1)
     ax.plot([1,2,3])
     plt.draw()
     svg = pt.figure_to_svg(fig)[:100].lower()
     yield nt.assert_true('doctype svg' in svg)