power: add a plot_load() to analyze input load
diff --git a/tests/test_power.py b/tests/test_power.py
index 30fbf69..a5ae2eb 100644
--- a/tests/test_power.py
+++ b/tests/test_power.py
@@ -24,3 +24,7 @@
 
         self.assertEquals(df["raw_cpu_power"].iloc[0], 36)
         self.assertTrue("load0" in df.columns)
+
+    def test_inpower_plot_load(self):
+        """Test that InPower.plot_load() doesn't explode"""
+        df = InPower().plot_load(0)