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Eric Blake 8d25dd101f qapi: Add tests for empty unions 
The documentation claims that alternates are useful for
allowing two or more types, although nothing enforces this.
Meanwhile, it is silent on whether empty unions are allowed.
In practice, the generated code will compile, in part because
we have a 'void *data' branch; but attempting to visit such a
type will cause an abort().  While there's no technical reason
that a degenerate union could not be made to work, it's harder
to justify the time spent in chasing known (the current
abort() during visit) and unknown corner cases, than it would
be to just outlaw them.  A future patch will probably take the
approach of forbidding them; in the meantime, we can at least
add testsuite coverage to make it obvious where things stand.

In addition to adding tests to expose the problems, we also
need to adjust existing tests that are meant to test something
else, but which could fail for the wrong reason if we reject
degenerate alternates/unions.

Note that empty structs are explicitly supported (for example,
right now they are the only way to specify that one branch of a
flat union adds no additional members), and empty enums are
covered by the testsuite as working (even if they do not seem
to have much use).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
..
acpi-test-data acpi: update expected files for memory unplug 2015-05-11 09:21:37 +02:00
image-fuzzer typofixes - v4 2015-09-11 10:45:43 +03:00
libqos qtest/ahci: fix redundant assertion 2015-10-05 12:00:55 -04:00
multiboot tests/multiboot: Add test for modules 2015-01-26 12:22:44 +01:00
qapi-schema qapi: Add tests for empty unions 2015-10-12 18:44:54 +02:00
qemu-iotests iotests: Fix test 128 for password-less sudo 2015-10-02 13:48:29 +02:00
rocker rocker: tests: don't need to specify master/self when setting vlans 2015-07-07 13:13:22 +01:00
tcg maint: remove unused include for signal.h 2015-09-11 10:21:38 +03:00
vmstate-static-checker-data tests: vmstate static checker: add size mismatch inside substructure 2014-06-23 19:14:52 +02:00
.gitignore tests: add test cases for netfilter object 2015-10-12 13:34:32 +08:00
ac97-test.c tests: Add ac97 qtest 2014-05-05 20:58:33 +02:00
ahci-test.c qtest/ahci: export generate_pattern 2015-09-18 10:58:56 -04:00
bios-tables-test.c maint: avoid useless "if (foo) free(foo)" pattern 2015-09-11 10:21:38 +03:00
boot-order-test.c qtest: Use -display none by default 2013-11-19 10:28:14 +01:00
check-block.sh Add 'make check-block' 2012-03-12 15:14:07 +01:00
check-qdict.c check-qdict: Test cases for new functions 2015-06-12 16:58:06 +02:00
check-qfloat.c qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
check-qint.c qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
check-qjson.c qobject: Use 'bool' for qbool 2015-06-22 17:40:00 +02:00
check-qlist.c qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
check-qom-interface.c tests: Test QOM interface casting 2013-12-24 17:27:17 +01:00
check-qom-proplist.c qom: Don't pass string table to object_get_enum() function 2015-06-19 18:42:48 +02:00
check-qstring.c qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
crypto-tls-x509-helpers.c crypto: add sanity checking of TLS x509 credentials 2015-09-15 15:05:09 +01:00
crypto-tls-x509-helpers.h crypto: add sanity checking of TLS x509 credentials 2015-09-15 15:05:09 +01:00
device-introspect-test.c qdev: Protect device-list-properties against broken devices 2015-10-09 15:25:57 +02:00
display-vga-test.c virtio-gpu: add to display-vga test 2015-07-07 11:23:18 +02:00
drive_del-test.c libqtest: New hmp() & friends 2015-10-09 15:25:57 +02:00
ds1338-test.c i.MX: Add qtest support for I2C device emulator. 2015-09-07 10:39:31 +01:00
e1000-test.c tests: Use qtest_add_data_func() consistently 2015-06-19 10:29:14 +02:00
eepro100-test.c tests: Use qtest_add_data_func() consistently 2015-06-19 10:29:14 +02:00
endianness-test.c tests: Use qtest_add_data_func() consistently 2015-06-19 10:29:14 +02:00
es1370-test.c tests: Add es1370 qtest 2014-05-05 20:58:33 +02:00
fdc-test.c fdc-test: Test state for existing cases more thoroughly 2015-06-02 13:34:45 -04:00
fw_cfg-test.c fw_cfg-test: Fix test path to include architecture 2015-03-30 19:19:42 +02:00
hd-geo-test.c tests/hd-geo-test.c: Remove unused test_image variable 2015-01-15 10:44:13 +03:00
i440fx-test.c i440fx-test: Fix test paths to include architecture 2015-03-30 19:24:54 +02:00
i82801b11-test.c tests: Add i82801b11 qtest 2014-03-31 22:36:17 +02:00
ide-test.c libqtest: New hmp() & friends 2015-10-09 15:25:57 +02:00
intel-hda-test.c tests: Add intel-hda qtests 2014-05-05 20:58:33 +02:00
ioh3420-test.c tests: Add ioh3420 qtest 2014-05-05 20:58:33 +02:00
ipoctal232-test.c tests: Add ipoctal232 qtest 2014-02-14 21:07:13 +01:00
libqtest.c libqtest: New hmp() & friends 2015-10-09 15:25:57 +02:00
libqtest.h libqtest: New hmp() & friends 2015-10-09 15:25:57 +02:00
m48t59-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
Makefile qapi: Add tests for empty unions 2015-10-12 18:44:54 +02:00
ne2000-test.c tests: Add ne2000 qtest 2014-02-14 20:50:19 +01:00
nvme-test.c qtests: Specify image format explicitly 2014-12-10 10:31:12 +01:00
pc-cpu-test.c tests: Use qtest_add_data_func() consistently 2015-06-19 10:29:14 +02:00
pcnet-test.c tests: Add pcnet qtest 2014-02-14 16:22:33 +01:00
pkix_asn1_tab.c crypto: add sanity checking of TLS x509 credentials 2015-09-15 15:05:09 +01:00
pvpanic-test.c pvpanic-test: Assert pause event 2014-03-31 22:36:17 +02:00
q35-test.c q35: add test for SMRAM.D_LCK 2015-06-05 19:45:09 +02:00
qemu-iotests-quick.sh qemu-iotests: Speed up make check-block 2015-01-13 11:47:55 +00:00
qom-test.c tests: Use qtest_add_data_func() consistently 2015-06-19 10:29:14 +02:00
rcutorture.c rcu tests: fix compilation on 32-bit ppc 2015-03-25 13:37:10 +01:00
rtc-test.c qtest: Include system headers before user headers 2014-02-17 23:10:02 +01:00
rtl8139-test.c rtl8139: remove muldiv64() 2015-09-25 14:53:29 +02:00
spapr-phb-test.c tests: Add spapr-pci-host-bridge qtest 2014-03-13 01:21:57 +01:00
tco-test.c tco-test: fix up config accesses and re-enable 2015-07-08 12:38:30 +03:00
test-aio.c AioContext: fix broken ctx->dispatching optimization 2015-07-22 12:41:40 +01:00
test-bitops.c tests: Add missing include to test-bitops.c 2014-11-02 10:04:34 +03:00
test-coroutine.c test-coroutine: Regression test for yield bug 2015-03-09 11:11:59 +01:00
test-crypto-cipher.c crypto: extend unit tests to cover decryption too 2015-07-27 12:22:01 +02:00
test-crypto-hash.c crypto: introduce new module for computing hash digests 2015-07-07 12:04:07 +02:00
test-crypto-tlscredsx509.c crypto: add sanity checking of TLS x509 credentials 2015-09-15 15:05:09 +01:00
test-crypto-tlssession.c crypto: introduce new module for handling TLS sessions 2015-09-15 15:07:43 +01:00
test-cutils.c tests: add some qemu_strtosz() tests 2015-09-25 12:04:41 +02:00
test-hbitmap.c maint: avoid useless "if (foo) free(foo)" pattern 2015-09-11 10:21:38 +03:00
test-int128.c tests/test-int128: Don't use __noclone__ attribute on clang 2014-03-02 17:20:37 +04:00
test-iov.c test-iov: add iov_discard_front/back() testcases 2013-01-02 15:58:09 +01:00
test-mul64.c tests: Add unit tests for mulu64 and muls64 2013-02-17 14:28:58 +00:00
test-netfilter.c tests: add test cases for netfilter object 2015-10-12 13:34:32 +08:00
test-opts-visitor.c QemuOpts: Wean off qerror_report_err() 2015-06-22 18:20:39 +02:00
test-qdev-global-props.c qdev: Move global validation to a single function 2014-09-18 21:51:24 +03:00
test-qemu-opts.c QemuOpts: Wean off qerror_report_err() 2015-06-22 18:20:39 +02:00
test-qmp-commands.c qapi: Introduce a first class 'any' type 2015-09-21 09:56:49 +02:00
test-qmp-event.c qapi-event: Clean up how name of enum QAPIEvent is made 2015-09-04 15:47:13 +02:00
test-qmp-input-strict.c qapi: New QMP command query-qmp-schema for QMP introspection 2015-09-21 09:56:49 +02:00
test-qmp-input-visitor.c qapi: Introduce a first class 'any' type 2015-09-21 09:56:49 +02:00
test-qmp-output-visitor.c qapi: Introduce a first class 'any' type 2015-09-21 09:56:49 +02:00
test-rcu-list.c rcu: actually register threads that have RCU read-side critical sections 2015-07-24 13:57:45 +02:00
test-rfifolock.c rfifolock: add recursive FIFO lock 2014-03-13 14:42:21 +01:00
test-string-input-visitor.c tests: simplify code 2014-06-19 18:44:22 +03:00
test-string-output-visitor.c tests: Unique test path for /string-visitor/output 2015-10-08 19:48:17 +03:00
test-thread-pool.c block: Rename BlockDriverAIOCB* to BlockAIOCB* 2014-10-20 13:41:27 +02:00
test-throttle.c throttle: add throttle_max_is_missing_limit() test 2015-08-05 12:53:48 +01:00
test-visitor-serialization.c qapi: Drop tests for inline nested structs 2015-05-05 18:39:02 +02:00
test-vmstate.c migration: Append JSON description of migration stream 2015-02-05 17:16:14 +01:00
test-write-threshold.c block: add event when disk usage exceeds threshold 2015-02-06 17:24:21 +01:00
test-x86-cpuid.c target-i386: Move topology.h to include/hw/i386 2015-03-09 16:30:02 -03:00
test-xbzrle.c maint: remove unused include for strings.h 2015-09-11 10:21:38 +03:00
tmp105-test.c libqtest: escape strings in QMP commands, fix leak 2014-07-01 10:20:41 +02:00
tpci200-test.c tests: Add tpci200 qtest 2014-02-14 21:02:27 +01:00
usb-hcd-ehci-test.c tests: usb: Generic usb device hotplug 2014-10-15 05:03:13 +02:00
usb-hcd-ohci-test.c misc: fix typos in copyright declaration 2015-03-26 14:21:43 +01:00
usb-hcd-uhci-test.c misc: fix typos in copyright declaration 2015-03-26 14:21:43 +01:00
usb-hcd-xhci-test.c misc: fix typos in copyright declaration 2015-03-26 14:21:43 +01:00
vhost-user-test.c vhost-user-test: fix predictable filename on tmpfs 2015-10-02 17:04:32 +03:00
virtio-9p-test.c tests: Add virtio-9p qtest 2014-03-31 22:35:50 +02:00
virtio-balloon-test.c tests: Add virtio-balloon qtest 2014-03-13 01:21:56 +01:00
virtio-blk-test.c tests: Check QVIRTIO_F_ANY_LAYOUT flag in virtio-blk test 2015-03-10 14:02:23 +01:00
virtio-console-test.c virtio-console-test: Test virtserialport as well 2014-03-13 21:12:07 +01:00
virtio-net-test.c tests: test rx recovery from cont 2015-08-04 09:41:28 +01:00
virtio-rng-test.c tests: virtio-rng: Check if hot-plug/unplug works 2014-10-15 05:03:12 +02:00
virtio-scsi-test.c virtio-scsi-test: Add test case for tail unaligned WRITE SAME 2015-07-30 15:44:49 +02:00
virtio-serial-test.c tests: virtio-serial: Check if hot-plug/unplug works 2014-10-15 05:03:12 +02:00
vmxnet3-test.c tests: Add vmxnet3 qtest 2014-02-14 16:22:33 +01:00
wdt_ib700-test.c timer: rename NSEC_PER_SEC due to Mac OS X header clash 2015-07-20 17:01:00 +01:00