527ab22a2a
Sometimes, qemu does not have a filename to work with, so it does not know which directory to use for a backing file specified by a relative filename. Add a test which tests that qemu exits with an appropriate error message. Additionally, add a test for qemu-img create with a backing filename relative to the backed image's base directory while omitting the image size. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
20 lines
787 B
Plaintext
20 lines
787 B
Plaintext
QA output created by 110
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=== Reconstructable filename ===
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Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file='t.IMGFMT.base'
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image: TEST_DIR/t.IMGFMT
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file format: IMGFMT
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virtual size: 64M (67108864 bytes)
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backing file: t.IMGFMT.base (actual path: TEST_DIR/t.IMGFMT.base)
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=== Non-reconstructable filename ===
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qemu-img: Cannot use relative backing file names for 'json:{"driver": "IMGFMT", "file": {"set-state.0.event": "read_aio", "image": {"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, "driver": "blkdebug", "set-state.0.new_state": 42}}'
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=== Backing name is always relative to the backed image ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file='t.IMGFMT.base'
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*** done
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