iotests: Test convert -n to pre-filled image
Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190724171239.8764-11-mreitz@redhat.com Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
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@ -257,6 +257,23 @@ for min_sparse in 4k 8k; do
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$QEMU_IMG map --output=json "$TEST_IMG".orig | _filter_qemu_img_map
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$QEMU_IMG map --output=json "$TEST_IMG".orig | _filter_qemu_img_map
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done
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done
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echo
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echo '=== -n to a non-zero image ==='
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echo
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# Keep source zero
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_make_test_img 64M
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# Output is not zero, but has bdrv_has_zero_init() == 1
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TEST_IMG="$TEST_IMG".orig _make_test_img 64M
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$QEMU_IO -c "write -P 42 0 64k" "$TEST_IMG".orig | _filter_qemu_io
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# Convert with -n, which should not assume that the target is zeroed
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$QEMU_IMG convert -O $IMGFMT -n "$TEST_IMG" "$TEST_IMG".orig
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$QEMU_IMG compare "$TEST_IMG" "$TEST_IMG".orig
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# success, all done
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# success, all done
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echo '*** done'
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echo '*** done'
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rm -f $seq.full
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rm -f $seq.full
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@ -220,4 +220,12 @@ convert -c -S 8k
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{ "start": 9216, "length": 8192, "depth": 0, "zero": true, "data": false},
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{ "start": 9216, "length": 8192, "depth": 0, "zero": true, "data": false},
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{ "start": 17408, "length": 1024, "depth": 0, "zero": false, "data": true},
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{ "start": 17408, "length": 1024, "depth": 0, "zero": false, "data": true},
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{ "start": 18432, "length": 67090432, "depth": 0, "zero": true, "data": false}]
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{ "start": 18432, "length": 67090432, "depth": 0, "zero": true, "data": false}]
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=== -n to a non-zero image ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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Formatting 'TEST_DIR/t.IMGFMT.orig', fmt=IMGFMT size=67108864
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wrote 65536/65536 bytes at offset 0
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64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Images are identical.
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*** done
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*** done
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