[Pkg-utopia-maintainers] Bug#1050436: upower: autopkgtest regression on i386: excessive precision?

[Paul Gevers]

Source: upower 1.90.2-4
Severity: serious
Tags: sid trixie
X-Debbugs-CC: bunk at debian.org
User: debian-ci at lists.debian.org
Usertags: regression
Control: affects -1 src:libgudev

Dear maintainer(s),

With a recent upload of upower, the autopkgtest of upower fails on i386 
in testing when that autopkgtest is run with the binary packages of 
upower and libgudev from unstable. It passes when run with only packages 
from testing. In tabular form:

                        pass            fail
libgudev               from testing    238-2
upower                 from testing    1.90.2-4
all others             from testing    from testing

I copied some of the output at the bottom of this report. Looking at the 
error this *seems* to me the result of the excessive precision of i386, 
but I hope the i386 porter (in XDCC) can shed his light on that too.

Currently this regression is blocking the migration of libgudev to 
testing [1]. Due to the nature of this issue, I filed this bug report 
against both packages. Can you please investigate the situation and 
reassign the bug to the right package?

More information about this bug and the reason for filing it can be found on
https://wiki.debian.org/ContinuousIntegration/RegressionEmailInformation

Paul

[1] https://qa.debian.org/excuses.php?package=libgudev

https://ci.debian.net/data/autopkgtest/testing/i386/u/upower/37102682/log.gz

208s ======================================================================
208s FAIL: test_battery_energy_charge_mixed 
(__main__.Tests.test_battery_energy_charge_mixed)
208s battery which reports both current charge and energy
208s ----------------------------------------------------------------------
208s Traceback (most recent call last):
208s   File "/usr/libexec/upower/integration-test.py", line 887, in 
test_battery_energy_charge_mixed
208s     self.assertEqual(self.get_dbus_dev_property(bat0_up, 
'Percentage'), 40.0)
208s AssertionError: 40.00000000000001 != 40.0
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