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Stefan Hajnoczi 9ee2dd4c22 iotests: port 141 to Python for reliable QMP testing 
The common.qemu bash functions allow tests to interact with the QMP
monitor of a QEMU process. I spent two days trying to update 141 when
the order of the test output changed, but found it would still fail
occassionally because printf() and QMP events race with synchronous QMP
communication.

I gave up and ported 141 to the existing Python API for QMP tests. The
Python API is less affected by the order in which QEMU prints output
because it does not print all QMP traffic by default.

The next commit changes the order in which QMP messages are received.
Make 141 reliable first.

Cc: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20240118144823.1497953-3-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-01-26 11:16:58 +01:00
..
sample_images
tests iotests: Basic tests for internal snapshots 2023-12-21 22:49:27 +01:00
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024 iotests/{024, 271}: add testcases for qemu-img rebase 2023-10-31 13:51:28 +01:00
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029 tests/: spelling fixes 2023-09-08 13:08:52 +03:00
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030 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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045 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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046 tests/: spelling fixes 2023-09-08 13:08:52 +03:00
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051.out monitor: do not use mb_read/mb_set for suspend_cnt 2023-05-25 10:18:33 +02:00
051.pc.out block: Introduce bdrv_schedule_unref() 2023-09-20 17:46:01 +02:00
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055 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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056 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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059 vmdk: Don't corrupt desc file in vmdk_write_cid 2023-11-28 14:56:32 +01:00
059.out vmdk: Don't corrupt desc file in vmdk_write_cid 2023-11-28 14:56:32 +01:00
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109.out mirror: return mirror-specific information upon query 2023-10-31 18:20:29 +01:00
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118 iotests: Test media change with iothreads 2023-10-31 13:51:33 +01:00
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129 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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131 tests: extend test 131 to cover availability of the write-zeroes 2023-09-21 08:49:28 +02:00
131.out tests: extend test 131 to cover availability of the write-zeroes 2023-09-21 08:49:28 +02:00
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141 iotests: port 141 to Python for reliable QMP testing 2024-01-26 11:16:58 +01:00
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149 tests/qemu-iotests/149: Use more inclusive language in this test 2023-12-04 15:12:51 +01:00
149.out tests/qemu-iotests/149: Use more inclusive language in this test 2023-12-04 15:12:51 +01:00
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151 python: use vm.cmd() instead of vm.qmp() where appropriate 2023-10-12 14:21:44 -04:00
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172 tests/qemu-iotests/172: Run QEMU with -vga none and -nic none 2023-05-22 09:44:48 +02:00
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181 docs tests: Fix use of migrate_set_parameter 2023-09-08 13:08:52 +03:00
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183 qemu-iotests: Filter warnings about block migration being deprecated 2023-10-31 08:44:33 +01:00
183.out qapi: Remove deprecated 'singlestep' member of StatusInfo 2024-01-19 11:38:32 +01:00
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185 iotests: adapt test output for new qemu_cleanup() behavior 2023-09-08 17:03:09 +02:00
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194 iotests: fix 194: filter out racy postcopy-active event 2023-06-07 08:36:55 -07:00
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197 trivial patches for 2023-09-08 2023-09-08 10:06:25 -04:00
197.out qemu-iotests/197: use more generic commands for formats other than qcow2 2023-09-07 20:32:02 -05:00
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202 block: remove outdated AioContext locking comments 2023-12-21 22:49:27 +01:00
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314.out iotests: add tests for "qemu-img rebase" with compression 2023-10-31 13:51:28 +01:00
check
common.filter qemu-iotests: Filter warnings about block migration being deprecated 2023-10-31 08:44:33 +01:00
common.nbd
common.pattern
common.qemu
common.rc iotests: use TEST_IMG_FILE instead of TEST_IMG in _require_large_file 2023-09-22 17:12:54 -05:00
common.tls
findtests.py
iotests.py iotests: add filter_qmp_generated_node_ids() 2024-01-26 11:16:58 +01:00
linters.py iotests: use the correct python to run linters 2023-10-17 15:20:46 +02:00
Makefile
meson.build configure, meson: rename targetos to host_os 2023-12-31 09:11:29 +01:00
mypy.ini
nbd-fault-injector.py
pylintrc tests/: spelling fixes 2023-09-08 13:08:52 +03:00
qcow2.py
qcow2_format.py
qed.py
README
testenv.py iotests: fix default machine type detection 2023-11-28 14:56:32 +01:00
testrunner.py

README 

=== This is the QEMU I/O test suite ===

* Intro

This package contains a simple test suite for the I/O layer of qemu.
It does not require a guest, but only the qemu, qemu-img and qemu-io
binaries.  This does limit it to exercise the low-level I/O path only
but no actual block drivers like ide, scsi or virtio.

* Usage

Just run ./check to run all tests for the raw image format, or ./check
-qcow2 to test the qcow2 image format.  The output of ./check -h explains
additional options to test further image formats or I/O methods.

* Feedback and patches

Please send improvements to the test suite, general feedback or just
reports of failing tests cases to qemu-devel@nongnu.org with a CC:
to qemu-block@nongnu.org.