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block: test blk_aio_flush() with blk->root == NULL

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This patch adds test cases for the scenario where blk_aio_flush() is
called on a BlockBackend with no root.  Calling drain afterwards should
complete the requests with -ENOMEDIUM.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2018-02-16 16:50:14 +00:00
parent 33f2a75777
commit ad0df3e0fd
2 changed files with 84 additions and 0 deletions
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2
tests/Makefile.include
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@ -83,6 +83,7 @@ gcov-files-test-hbitmap-y = blockjob.c
check-unit-y += tests/test-bdrv-drain$(EXESUF)
check-unit-y += tests/test-blockjob$(EXESUF)
check-unit-y += tests/test-blockjob-txn$(EXESUF)
check-unit-y += tests/test-block-backend$(EXESUF)
check-unit-y += tests/test-x86-cpuid$(EXESUF)
# all code tested by test-x86-cpuid is inside topology.h
gcov-files-test-x86-cpuid-y =
@ -613,6 +614,7 @@ tests/test-throttle$(EXESUF): tests/test-throttle.o $(test-block-obj-y)
tests/test-bdrv-drain$(EXESUF): tests/test-bdrv-drain.o $(test-block-obj-y) $(test-util-obj-y)
tests/test-blockjob$(EXESUF): tests/test-blockjob.o $(test-block-obj-y) $(test-util-obj-y)
tests/test-blockjob-txn$(EXESUF): tests/test-blockjob-txn.o $(test-block-obj-y) $(test-util-obj-y)
tests/test-block-backend$(EXESUF): tests/test-block-backend.o $(test-block-obj-y) $(test-util-obj-y)
tests/test-thread-pool$(EXESUF): tests/test-thread-pool.o $(test-block-obj-y)
tests/test-iov$(EXESUF): tests/test-iov.o $(test-util-obj-y)
tests/test-hbitmap$(EXESUF): tests/test-hbitmap.o $(test-util-obj-y) $(test-crypto-obj-y)

82
tests/test-block-backend.c Normal file
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@ -0,0 +1,82 @@
/*
* BlockBackend tests
*
* Copyright (c) 2017 Kevin Wolf <kwolf@redhat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "block/block.h"
#include "sysemu/block-backend.h"
#include "qapi/error.h"
static void test_drain_aio_error_flush_cb(void *opaque, int ret)
{
bool *completed = opaque;
g_assert(ret == -ENOMEDIUM);
*completed = true;
}
static void test_drain_aio_error(void)
{
BlockBackend *blk = blk_new(BLK_PERM_ALL, BLK_PERM_ALL);
BlockAIOCB *acb;
bool completed = false;
acb = blk_aio_flush(blk, test_drain_aio_error_flush_cb, &completed);
g_assert(acb != NULL);
g_assert(completed == false);
blk_drain(blk);
g_assert(completed == true);
blk_unref(blk);
}
static void test_drain_all_aio_error(void)
{
BlockBackend *blk = blk_new(BLK_PERM_ALL, BLK_PERM_ALL);
BlockAIOCB *acb;
bool completed = false;
acb = blk_aio_flush(blk, test_drain_aio_error_flush_cb, &completed);
g_assert(acb != NULL);
g_assert(completed == false);
blk_drain_all();
g_assert(completed == true);
blk_unref(blk);
}
int main(int argc, char **argv)
{
bdrv_init();
qemu_init_main_loop(&error_abort);
g_test_init(&argc, &argv, NULL);
g_test_add_func("/block-backend/drain_aio_error", test_drain_aio_error);
g_test_add_func("/block-backend/drain_all_aio_error",
test_drain_all_aio_error);
return g_test_run();
}