From 1670ae7af668958e76be6749f1f729d6dc9861e9 Mon Sep 17 00:00:00 2001 From: John Snow Date: Mon, 21 Mar 2022 16:16:10 -0400 Subject: [PATCH] iotests: add qemu_img_map() function Add a qemu_img_map() function by analogy with qemu_img_measure(), qemu_img_check(), and qemu_img_info() that all return JSON information. Replace calls to qemu_img_pipe('map', '--output=json', ...) with this new function, which provides better diagnostic information on failure. Note: The output for iotest 211 changes, because logging JSON after it was deserialized by Python behaves a little differently than logging the raw JSON document string itself. (iotests.log() sorts the keys for Python 3.6 support.) Signed-off-by: John Snow Reviewed-by: Eric Blake Message-Id: <20220321201618.903471-11-jsnow@redhat.com> Signed-off-by: Hanna Reitz --- tests/qemu-iotests/041 | 5 ++--- tests/qemu-iotests/211 | 6 +++--- tests/qemu-iotests/211.out | 10 +++------- tests/qemu-iotests/iotests.py | 3 +++ tests/qemu-iotests/tests/block-status-cache | 11 ++++------- tests/qemu-iotests/tests/parallels-read-bitmap | 6 ++---- 6 files changed, 17 insertions(+), 24 deletions(-) diff --git a/tests/qemu-iotests/041 b/tests/qemu-iotests/041 index db9f5dc540..3e16acee56 100755 --- a/tests/qemu-iotests/041 +++ b/tests/qemu-iotests/041 @@ -24,7 +24,7 @@ import os import re import json import iotests -from iotests import qemu_img, qemu_img_pipe, qemu_io +from iotests import qemu_img, qemu_img_map, qemu_io backing_img = os.path.join(iotests.test_dir, 'backing.img') target_backing_img = os.path.join(iotests.test_dir, 'target-backing.img') @@ -1360,8 +1360,7 @@ class TestFilters(iotests.QMPTestCase): self.vm.qmp('blockdev-del', node_name='target') - target_map = qemu_img_pipe('map', '--output=json', target_img) - target_map = json.loads(target_map) + target_map = qemu_img_map(target_img) assert target_map[0]['start'] == 0 assert target_map[0]['length'] == 512 * 1024 diff --git a/tests/qemu-iotests/211 b/tests/qemu-iotests/211 index f52cadade1..1a3b4596c8 100755 --- a/tests/qemu-iotests/211 +++ b/tests/qemu-iotests/211 @@ -59,7 +59,7 @@ with iotests.FilePath('t.vdi') as disk_path, \ vm.shutdown() iotests.img_info_log(disk_path) - iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path)) + iotests.log(iotests.qemu_img_map(disk_path)) # # Successful image creation (explicit defaults) @@ -83,7 +83,7 @@ with iotests.FilePath('t.vdi') as disk_path, \ vm.shutdown() iotests.img_info_log(disk_path) - iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path)) + iotests.log(iotests.qemu_img_map(disk_path)) # # Successful image creation (with non-default options) @@ -107,7 +107,7 @@ with iotests.FilePath('t.vdi') as disk_path, \ vm.shutdown() iotests.img_info_log(disk_path) - iotests.log(iotests.qemu_img_pipe('map', '--output=json', disk_path)) + iotests.log(iotests.qemu_img_map(disk_path)) # # Invalid BlockdevRef diff --git a/tests/qemu-iotests/211.out b/tests/qemu-iotests/211.out index c4425b5982..f02c75409c 100644 --- a/tests/qemu-iotests/211.out +++ b/tests/qemu-iotests/211.out @@ -17,8 +17,7 @@ file format: IMGFMT virtual size: 128 MiB (134217728 bytes) cluster_size: 1048576 -[{ "start": 0, "length": 134217728, "depth": 0, "present": true, "zero": true, "data": false}] - +[{"data": false, "depth": 0, "length": 134217728, "present": true, "start": 0, "zero": true}] === Successful image creation (explicit defaults) === {"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.vdi", "size": 0}}} @@ -36,8 +35,7 @@ file format: IMGFMT virtual size: 64 MiB (67108864 bytes) cluster_size: 1048576 -[{ "start": 0, "length": 67108864, "depth": 0, "present": true, "zero": true, "data": false}] - +[{"data": false, "depth": 0, "length": 67108864, "present": true, "start": 0, "zero": true}] === Successful image creation (with non-default options) === {"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "file", "filename": "TEST_DIR/PID-t.vdi", "size": 0}}} @@ -55,9 +53,7 @@ file format: IMGFMT virtual size: 32 MiB (33554432 bytes) cluster_size: 1048576 -[{ "start": 0, "length": 3072, "depth": 0, "present": true, "zero": false, "data": true, "offset": 1024}, -{ "start": 3072, "length": 33551360, "depth": 0, "present": true, "zero": true, "data": true, "offset": 4096}] - +[{"data": true, "depth": 0, "length": 3072, "offset": 1024, "present": true, "start": 0, "zero": false}, {"data": true, "depth": 0, "length": 33551360, "offset": 4096, "present": true, "start": 3072, "zero": true}] === Invalid BlockdevRef === {"execute": "blockdev-create", "arguments": {"job-id": "job0", "options": {"driver": "vdi", "file": "this doesn't exist", "size": 33554432}}} diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py index 2a1c589b76..b3e793f78a 100644 --- a/tests/qemu-iotests/iotests.py +++ b/tests/qemu-iotests/iotests.py @@ -318,6 +318,9 @@ def qemu_img_check(*args: str) -> Any: def qemu_img_info(*args: str) -> Any: return qemu_img_json('info', "--output", "json", *args) +def qemu_img_map(*args: str) -> Any: + return qemu_img_json('map', "--output", "json", *args) + def qemu_img_pipe(*args: str) -> str: '''Run qemu-img and return its output''' return qemu_img_pipe_and_status(*args)[0] diff --git a/tests/qemu-iotests/tests/block-status-cache b/tests/qemu-iotests/tests/block-status-cache index 40e648e251..5a7bc2c149 100755 --- a/tests/qemu-iotests/tests/block-status-cache +++ b/tests/qemu-iotests/tests/block-status-cache @@ -22,7 +22,7 @@ import os import signal import iotests -from iotests import qemu_img_create, qemu_img_pipe, qemu_nbd +from iotests import qemu_img_create, qemu_img_map, qemu_nbd image_size = 1 * 1024 * 1024 @@ -76,8 +76,7 @@ class TestBscWithNbd(iotests.QMPTestCase): # to allocate the first sector to facilitate alignment probing), and # then the rest to be zero. The BSC will thus contain (if anything) # one range covering the first sector. - map_pre = qemu_img_pipe('map', '--output=json', '--image-opts', - nbd_img_opts) + map_pre = qemu_img_map('--image-opts', nbd_img_opts) # qemu:allocation-depth maps for want_zero=false. # want_zero=false should (with the file driver, which the server is @@ -111,14 +110,12 @@ class TestBscWithNbd(iotests.QMPTestCase): # never loop too many times here. for _ in range(2): # (Ignore the result, this is just to contaminate the cache) - qemu_img_pipe('map', '--output=json', '--image-opts', - nbd_img_opts_alloc_depth) + qemu_img_map('--image-opts', nbd_img_opts_alloc_depth) # Now let's see whether the cache reports everything as data, or # whether we get correct information (i.e. the same as we got on our # first attempt). - map_post = qemu_img_pipe('map', '--output=json', '--image-opts', - nbd_img_opts) + map_post = qemu_img_map('--image-opts', nbd_img_opts) if map_pre != map_post: print('ERROR: Map information differs before and after querying ' + diff --git a/tests/qemu-iotests/tests/parallels-read-bitmap b/tests/qemu-iotests/tests/parallels-read-bitmap index af6b9c5db3..38ab5fa5b2 100755 --- a/tests/qemu-iotests/tests/parallels-read-bitmap +++ b/tests/qemu-iotests/tests/parallels-read-bitmap @@ -18,9 +18,8 @@ # along with this program. If not, see . # -import json import iotests -from iotests import qemu_nbd_popen, qemu_img_pipe, log, file_path +from iotests import qemu_nbd_popen, qemu_img_map, log, file_path iotests.script_initialize(supported_fmts=['parallels']) @@ -36,8 +35,7 @@ iotests.unarchive_sample_image('parallels-with-bitmap', disk) with qemu_nbd_popen('--read-only', f'--socket={nbd_sock}', f'--bitmap={bitmap}', '-f', iotests.imgfmt, disk): - out = qemu_img_pipe('map', '--output=json', '--image-opts', nbd_opts) - chunks = json.loads(out) + chunks = qemu_img_map('--image-opts', nbd_opts) cluster = 64 * 1024 log('dirty clusters (cluster size is 64K):')