TST: add tolerance for tests to pass on 2.1.x branch

tacaswell · tacaswell · commit 20ac580d952a · 2018-01-15T18:50:14.000-05:00
The test image was re-generated and the tolerance removed in #10077. Re-store the tolerance on 2.1.x to gets tests passing, this should not be merged into master branch.
diff --git a/lib/matplotlib/tests/test_streamplot.py b/lib/matplotlib/tests/test_streamplot.py
@@ -40,7 +40,8 @@ def test_startpoints():
     plt.plot(start_x, start_y, 'ok')
 
 
-@image_comparison(baseline_images=['streamplot_colormap'])
+@image_comparison(baseline_images=['streamplot_colormap'],
+                  tol=.02)
 def test_colormap():
     X, Y, U, V = velocity_field()
     plt.streamplot(X, Y, U, V, color=U, density=0.6, linewidth=2,
