111 lines
3.7 KiB
Text
111 lines
3.7 KiB
Text
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#!/usr/bin/env bash
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# group: rw auto backing
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#
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# Tests handling of colons in filenames (which may be confused with protocol
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# prefixes)
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=hreitz@redhat.com
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seq="$(basename $0)"
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echo "QA output created by $seq"
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status=1 # failure is the default!
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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# Needs backing file support
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_supported_fmt qcow qcow2 qed vmdk
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_unsupported_imgopts "subformat=monolithicFlat" \
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"subformat=twoGbMaxExtentFlat"
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# This is the default protocol (and we want to test the difference between
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# colons which separate a protocol prefix from the rest and colons which are
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# just part of the filename, so we cannot test protocols which require a prefix)
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_supported_proto file
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echo
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echo '=== Testing plain files ==='
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echo
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# A colon after a slash is not a protocol prefix separator
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TEST_IMG="$TEST_DIR/a:b.$IMGFMT" _make_test_img 64M
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_rm_test_img "$TEST_DIR/a:b.$IMGFMT"
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# But if you want to be really sure, you can do this
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TEST_IMG="file:$TEST_DIR/a:b.$IMGFMT" _make_test_img 64M
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_rm_test_img "$TEST_DIR/a:b.$IMGFMT"
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echo
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echo '=== Testing relative backing filename resolution ==='
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echo
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BASE_IMG="$TEST_DIR/image:base.$IMGFMT"
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TOP_IMG="$TEST_DIR/image:top.$IMGFMT"
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TEST_IMG=$BASE_IMG _make_test_img 64M
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TEST_IMG=$TOP_IMG _make_test_img -b ./image:base.$IMGFMT -F $IMGFMT
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# (1) The default cluster size depends on the image format
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# (2) vmdk only supports vmdk backing files, so it always reports the
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# format of its backing file as such (but neither it nor qcow
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# support the backing_fmt creation option, so we cannot use that to
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# harmonize the output across all image formats this test supports)
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TEST_IMG=$TOP_IMG _img_info | grep -ve 'cluster_size' -e 'backing file format'
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_rm_test_img "$BASE_IMG"
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_rm_test_img "$TOP_IMG"
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# Do another test where we access both top and base without any slash in them
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echo
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pushd "$TEST_DIR" >/dev/null
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BASE_IMG="base.$IMGFMT"
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TOP_IMG="file:image:top.$IMGFMT"
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TEST_IMG=$BASE_IMG _make_test_img 64M
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TEST_IMG=$TOP_IMG _make_test_img -b "$BASE_IMG" -F $IMGFMT
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TEST_IMG=$TOP_IMG _img_info | grep -ve 'cluster_size' -e 'backing file format'
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_rm_test_img "$BASE_IMG"
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_rm_test_img "image:top.$IMGFMT"
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popd >/dev/null
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# Note that we could also do the same test with BASE_IMG=file:image:base.$IMGFMT
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# -- but behavior for that case is a bit strange. Protocol-prefixed paths are
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# in a sense always absolute paths, so such paths will never be combined with
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# the path of the overlay. But since "image:base.$IMGFMT" is actually a
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# relative path, it will always be evaluated relative to qemu's CWD (but not
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# relative to the overlay!). While this is more or less intended, it is still
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# pretty strange and thus not something that is tested here.
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# (The root of the issue is the use of a relative path with a protocol prefix.
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# This may always give you weird results because in one sense, qemu considers
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# such paths absolute, whereas in another, they are still relative.)
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# success, all done
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echo '*** done'
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rm -f $seq.full
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status=0
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