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From 8e5660a0047bcefbab18d5996acb4da2a1c298ae Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Mon, 15 Oct 2018 17:44:46 +0100
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Subject: [PATCH 49/49] iotests: Add test 221 to catch qemu-img map regression
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RH-Author: Max Reitz <mreitz@redhat.com>
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Message-id: <20181015174446.31974-3-mreitz@redhat.com>
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Patchwork-id: 82707
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O-Subject: [RHEL-8 qemu-kvm PATCH v2 2/2] iotests: Add test 221 to catch qemu-img map regression
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Bugzilla: 1639374
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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From: Eric Blake <eblake@redhat.com>
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Although qemu-img creates aligned files (by rounding up), it
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must also gracefully handle files that are not sector-aligned.
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Test that the bug fixed in the previous patch does not recur.
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It's a bit annoying that we can see the (implicit) hole past
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the end of the file on to the next sector boundary, so if we
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ever reach the point where we report a byte-accurate size rather
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than our current behavior of always rounding up, this test will
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probably need a slight modification.
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Signed-off-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit c6a9d2f6f9bc0c163b3a3073126464a2446bad5f)
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 tests/qemu-iotests/221     | 60 ++++++++++++++++++++++++++++++++++++++++++++++
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 tests/qemu-iotests/221.out | 16 +++++++++++++
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 tests/qemu-iotests/group   |  1 +
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 3 files changed, 77 insertions(+)
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 create mode 100755 tests/qemu-iotests/221
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 create mode 100644 tests/qemu-iotests/221.out
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diff --git a/tests/qemu-iotests/221 b/tests/qemu-iotests/221
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new file mode 100755
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index 0000000..41c4e4b
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--- /dev/null
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+++ b/tests/qemu-iotests/221
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@@ -0,0 +1,60 @@
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+#!/bin/bash
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+#
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+# Test qemu-img vs. unaligned images
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+#
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+# Copyright (C) 2018 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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+
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+seq="$(basename $0)"
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+echo "QA output created by $seq"
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+
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+here="$PWD"
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+status=1 # failure is the default!
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+
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+_cleanup()
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+{
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+    _cleanup_test_img
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+}
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+trap "_cleanup; exit \$status" 0 1 2 3 15
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+
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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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+
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+_supported_fmt raw
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+_supported_proto file
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+_supported_os Linux
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+
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+echo
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+echo "=== Check mapping of unaligned raw image ==="
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+echo
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+
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+_make_test_img 43009 # qemu-img create rounds size up
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+$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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+
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+truncate --size=43009 "$TEST_IMG" # so we resize it and check again
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+$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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+
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+$QEMU_IO -c 'w 43008 1' "$TEST_IMG" | _filter_qemu_io # writing also rounds up
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+$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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+
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+truncate --size=43009 "$TEST_IMG" # so we resize it and check again
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+$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
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+
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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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diff --git a/tests/qemu-iotests/221.out b/tests/qemu-iotests/221.out
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new file mode 100644
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index 0000000..a9c0190
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--- /dev/null
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+++ b/tests/qemu-iotests/221.out
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@@ -0,0 +1,16 @@
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+QA output created by 221
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+
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+=== Check mapping of unaligned raw image ===
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+
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+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=43009
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+[{ "start": 0, "length": 43520, "depth": 0, "zero": true, "data": false, "offset": OFFSET}]
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+[{ "start": 0, "length": 43520, "depth": 0, "zero": true, "data": false, "offset": OFFSET}]
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+wrote 1/1 bytes at offset 43008
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+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+[{ "start": 0, "length": 40960, "depth": 0, "zero": true, "data": false, "offset": OFFSET},
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+{ "start": 40960, "length": 2049, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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+{ "start": 43009, "length": 511, "depth": 0, "zero": true, "data": false, "offset": OFFSET}]
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+[{ "start": 0, "length": 40960, "depth": 0, "zero": true, "data": false, "offset": OFFSET},
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+{ "start": 40960, "length": 2049, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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+{ "start": 43009, "length": 511, "depth": 0, "zero": true, "data": false, "offset": OFFSET}]
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+*** done
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diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
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index 0242b2f..1cb2ccb 100644
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--- a/tests/qemu-iotests/group
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+++ b/tests/qemu-iotests/group
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@@ -218,6 +218,7 @@
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 217 rw auto quick
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 218 rw auto quick
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 219 rw auto
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+221 rw auto quick
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 222 rw auto quick
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 223 rw auto quick
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 226 auto quick
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-- 
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1.8.3.1
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