matplotlib
diff --git a/‎lib/matplotlib/tests/baseline_images/test_scale/logscale_nonpos_values.png
16.6 KB b/‎lib/matplotlib/tests/baseline_images/test_scale/logscale_nonpos_values.png
16.6 KB
diff --git a/‎lib/matplotlib/tests/test_scale.py
Lines changed: 26 additions & 0 deletions b/‎lib/matplotlib/tests/test_scale.py
Lines changed: 26 additions & 0 deletions
@@ -73,3 +73,29 @@ def test_extra_kwargs_raise():
     with pytest.raises(ValueError):
         ax.set_yscale('log', nonpos='mask')
 
+
+@image_comparison(baseline_images=['logscale_nonpos_values'], remove_text=True,
+                  extensions=['png'], style='mpl20')
+def test_logscale_nonpos_values():
+    np.random.seed(19680801)
+    xs = np.random.normal(size=int(1e3))
+    fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2)
+    ax1.hist(xs, range=(-5, 5), bins=10)
+    ax1.set_yscale('log')
+    ax2.hist(xs, range=(-5, 5), bins=10)
+    ax2.set_yscale('log', nonposy='mask')
+
+    xdata = np.arange(0, 10, 0.01)
+    ydata = np.exp(-xdata)
+    edata = 0.2*(10-xdata)*np.cos(5*xdata)*np.exp(-xdata)
+
+    ax3.fill_between(xdata, ydata - edata, ydata + edata)
+    ax3.set_yscale('log')
+
+    x = np.logspace(-1, 1)
+    y = x ** 3
+    yerr = x**2
+    ax4.errorbar(x, y, yerr=yerr)
+
+    ax4.set_yscale('log')
+    ax4.set_xscale('log')