Test icinga_legacytimeperiod/dst fails on musl libc

[oxzi]

Describe the bug

In #9949, an issue with the failing icinga_legacytimeperiod/dst test on musl libc was raised. This issue seems to exist for quite some time, as seen in the exclusion patch for the Alpine Linux downstream package build.

When running the tests, this is the only failing one.

147/176 Test #147: base-icinga_legacytimeperiod/dst ........................................***Failed    0.01 sec
Running 1 test case...
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='2021-03-14' ra
nges='01:30-02:30' ref='2021-03-14 01:59:59 '): got=none expected=(2021-03-14 01:30:00 PST (1615714200) .. 2021-03-14 03:30:00
PDT (1615717800))
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='2021-03-14' range
s='01:30-02:30' ref='2021-03-14 01:00:00 '): got=none expected=(2021-03-14 01:30:00 PST (1615714200) .. 2021-03-14 03:30:00 PDT
 (1615717800))
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='2021-03-14' ra
nges='02:30-03:30' ref='2021-03-14 03:00:00 '): got=(2021-03-14 01:30:00 PST (1615714200) .. 2021-03-14 03:30:00 PDT (161571780
0)) expected=none
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='2021-03-14' range
s='02:30-03:30' ref='2021-03-14 01:00:00 '): got=(2021-03-14 01:30:00 PST (1615714200) .. 2021-03-14 03:30:00 PDT (1615717800))
 expected=none
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='2021-03-14' ra
nges='02:15-03:45' ref='2021-03-14 03:30:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (161571870
0)) expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='2021-03-14' range
s='02:15-03:45' ref='2021-03-14 01:00:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700))
 expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='sunday' ranges
='02:15-03:45' ref='2021-03-14 03:30:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700))
expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='sunday' ranges='0
2:15-03:45' ref='2021-03-14 01:00:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700)) exp
ected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='sunday 2' rang
es='02:15-03:45' ref='2021-03-14 03:30:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700)
) expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='sunday 2' ranges=
'02:15-03:45' ref='2021-03-14 01:00:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700)) e
xpected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(805): error: in "icinga_legacytimeperiod/dst": FindRunningSegment(day='sunday -3' ran
ges='02:15-03:45' ref='2021-03-14 03:30:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700
)) expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))
/icinga2/test/icinga-legacytimeperiod.cpp(824): error: in "icinga_legacytimeperiod/dst": FindNextSegment(day='sunday -3' ranges
='02:15-03:45' ref='2021-03-14 01:00:00 '): got=(2021-03-14 01:15:00 PST (1615713300) .. 2021-03-14 03:45:00 PDT (1615718700))
expected=(2021-03-14 03:15:00 PDT (1615716900) .. 2021-03-14 03:45:00 PDT (1615718700))

*** 12 failures are detected in the test module "icinga2"

To Reproduce

Build and test Icinga 2 under a Linux with musl instead of glibc, e.g., by using #9949.

Your Environment

Include as many relevant details about the environment you experienced the problem in

• Version used (icinga2 --version): latest master, but present since versions
• Operating System and version: Alpine Linux v3.21

[oxzi]

Related issue: #9801