tests: avoid matplotlib warning when running the testsuite
When you try to plot a dataframe with only one index, matplotlib
complains:
---8<---
/usr/lib/python2.7/dist-packages/matplotlib/axes/_base.py:2787: UserWarning: Attempting to set identical left==right re
sults
in singular transformations; automatically expanding.
left=0.0, right=0.0
'left=%s, right=%s') % (left, right))
---8<---
Change the timestamp of the second event to make it more realistic and
make sure that the dataframe that is plotted has more than one row.
diff --git a/tests/test_plot_utils.py b/tests/test_plot_utils.py
index e912762..c1383a0 100644
--- a/tests/test_plot_utils.py
+++ b/tests/test_plot_utils.py
@@ -185,7 +185,7 @@
"""plot_utils.plot_allfreqs work when there is only one actor"""
in_data = """ kworker/4:1-397 [004] 720.741349: thermal_power_cpu_get: cpus=00000000,00000006 freq=1400000 raw_cpu_power=189 load={23, 12} power=14
- kworker/4:1-397 [004] 720.741349: thermal_power_cpu_limit: cpus=00000000,00000006 freq=1400000 cdev_state=1 power=14"""
+ kworker/4:1-397 [004] 720.741679: thermal_power_cpu_limit: cpus=00000000,00000006 freq=1400000 cdev_state=1 power=14"""
with open("trace.txt", "w") as fout:
fout.write(in_data)