Tests fail when run inside pbuilder

[mark0n]

PCI tests fail when run inside pbuilder:

23:57:32 make[2]: Entering directory '/tmp/buildd/devlib2-2.9/testApp'
23:57:32 make -C O.linux-x86_64 -f ../Makefile TOP=../.. \
23:57:32     T_A=linux-x86_64 runtests
23:57:32 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.linux-x86_64'
23:57:32 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' pcitest.t epicsMMIOTest.t
23:57:32 Could not open /sys/bus/pci/devices!
23:57:32 pcitest.t ........ 
23:57:32 Failed 19/24 subtests 
23:57:32 epicsMMIOTest.t .. ok
23:57:32 
23:57:32 Test Summary Report
23:57:32 -------------------
23:57:32 pcitest.t      (Wstat: 0 Tests: 9 Failed: 4)
23:57:32   Failed tests:  6-9
23:57:32   Parse errors: Bad plan.  You planned 24 tests but ran 9.
23:57:32 Files=2, Tests=23,  0 wallclock secs ( 0.03 usr  0.01 sys +  0.02 cusr  0.00 csys =  0.06 CPU)
23:57:32 Result: FAIL
23:57:32 Failed 1/2 test programs. 4/23 subtests failed.
23:57:32 /etc/epics/configure/RULES_BUILD:322: recipe for target 'runtests' failed
23:57:32 make[3]: [runtests] Error 255 (ignored)
23:57:32 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.linux-x86_64'
23:57:32 make -C O.linux-x86_64-debug -f ../Makefile TOP=../.. \
23:57:32     T_A=linux-x86_64-debug runtests
23:57:32 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.linux-x86_64-debug'
23:57:33 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' pcitest.t epicsMMIOTest.t
23:57:33 Could not open /sys/bus/pci/devices!
23:57:33 pcitest.t ........ 
23:57:33 Failed 19/24 subtests 
23:57:33 epicsMMIOTest.t .. ok
23:57:33 
23:57:33 Test Summary Report
23:57:33 -------------------
23:57:33 pcitest.t      (Wstat: 0 Tests: 9 Failed: 4)
23:57:33   Failed tests:  6-9
23:57:33   Parse errors: Bad plan.  You planned 24 tests but ran 9.
23:57:33 Files=2, Tests=23,  0 wallclock secs ( 0.03 usr  0.01 sys +  0.02 cusr  0.00 csys =  0.06 CPU)
23:57:33 Result: FAIL
23:57:33 Failed 1/2 test programs. 4/23 subtests failed.
23:57:33 /etc/epics/configure/RULES_BUILD:322: recipe for target 'runtests' failed
23:57:33 make[3]: [runtests] Error 255 (ignored)
23:57:33 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.linux-x86_64-debug'
23:57:33 make -C O.RTEMS-mvme2100 -f ../Makefile TOP=../.. \
23:57:33     T_A=RTEMS-mvme2100 runtests
23:57:33 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme2100'
23:57:33 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' 
23:57:33 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme2100'
23:57:33 make -C O.RTEMS-mvme2307 -f ../Makefile TOP=../.. \
23:57:33     T_A=RTEMS-mvme2307 runtests
23:57:33 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme2307'
23:57:33 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' 
23:57:33 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme2307'
23:57:33 make -C O.RTEMS-mvme3100 -f ../Makefile TOP=../.. \
23:57:33     T_A=RTEMS-mvme3100 runtests
23:57:33 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme3100'
23:57:33 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' 
23:57:33 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme3100'
23:57:33 make -C O.RTEMS-mvme5500 -f ../Makefile TOP=../.. \
23:57:33     T_A=RTEMS-mvme5500 runtests
23:57:33 make[3]: Entering directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme5500'
23:57:33 perl -CSD -MTest::Harness -e 'runtests @ARGV if @ARGV;' 
23:57:33 make[3]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp/O.RTEMS-mvme5500'
23:57:33 make[2]: Leaving directory '/tmp/buildd/devlib2-2.9/testApp'

I'm wondering if these tests should be disabled by default. Or maybe we should disable them only when building the Debian package by adding an appropriate patch to the patch queue? Or maybe we can make the build smart enough to skip these tests if this is run inside a chroot environment?

[mdavidsaver]

It's reasonable to testSkip() if "/sys/bus/pci/devices" doesn't exist, or isn't readable.