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From 6b974c6b3235cb83eb3e8c30a47706529f88d197 Mon Sep 17 00:00:00 2001
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From: Boris Burkov <boris@bur.io>
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Date: Fri, 21 Aug 2020 00:40:10 -0700
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Subject: [PATCH] btrfs-progs: receive: add tests for basic encoded_write
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send/receive
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Adapt the existing send/receive tests by passing '-o compress-force' to
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the mount commands in a new test. After writing a few files in the
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various compression formats, send/receive them with and without
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--force-decompress to test both the encoded_write path and the fallback
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to decode+write.
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Signed-off-by: Boris Burkov <boris@bur.io>
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---
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.../052-receive-write-encoded/test.sh | 114 ++++++++++++++++++
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1 file changed, 114 insertions(+)
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create mode 100755 tests/misc-tests/052-receive-write-encoded/test.sh
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diff --git a/tests/misc-tests/052-receive-write-encoded/test.sh b/tests/misc-tests/052-receive-write-encoded/test.sh
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new file mode 100755
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index 00000000..47330281
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--- /dev/null
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+++ b/tests/misc-tests/052-receive-write-encoded/test.sh
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@@ -0,0 +1,114 @@
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+#!/bin/bash
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+#
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+# test that we can send and receive encoded writes for three modes of
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+# transparent compression: zlib, lzo, and zstd.
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+
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+source "$TEST_TOP/common"
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+
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+check_prereq mkfs.btrfs
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+check_prereq btrfs
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+
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+setup_root_helper
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+prepare_test_dev
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+
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+here=`pwd`
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+
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+# assumes the filesystem exists, and does mount, write, snapshot, send, unmount
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+# for the specified encoding option
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+send_one() {
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+ local str
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+ local subv
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+ local snap
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+
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+ algorithm="$1"
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+ shift
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+ str="$1"
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+ shift
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+
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+ subv="subv-$algorithm"
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+ snap="snap-$algorithm"
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+
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+ run_check_mount_test_dev "-o" "compress-force=$algorithm"
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+ cd "$TEST_MNT" || _fail "cannot chdir to TEST_MNT"
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+
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+ run_check $SUDO_HELPER "$TOP/btrfs" subvolume create "$subv"
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+ run_check $SUDO_HELPER dd if=/dev/zero of="$subv/file1" bs=1M count=1
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+ run_check $SUDO_HELPER dd if=/dev/zero of="$subv/file2" bs=500K count=1
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+ run_check $SUDO_HELPER "$TOP/btrfs" subvolume snapshot -r "$subv" "$snap"
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+ run_check $SUDO_HELPER "$TOP/btrfs" send -f "$str" "$snap" "$@"
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+
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+ cd "$here" || _fail "cannot chdir back to test directory"
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+ run_check_umount_test_dev
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+}
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+
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+receive_one() {
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+ local str
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+ str="$1"
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+ shift
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+
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+ run_check_mkfs_test_dev
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+ run_check_mount_test_dev
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+ run_check $SUDO_HELPER "$TOP/btrfs" receive "$@" -v -f "$str" "$TEST_MNT"
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+ run_check_umount_test_dev
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+ run_check rm -f -- "$str"
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+}
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+
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+test_one_write_encoded() {
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+ local str
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+ local algorithm
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+ algorithm="$1"
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+ shift
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+ str="$here/stream-$algorithm.stream"
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+
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+ run_check_mkfs_test_dev
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+ send_one "$algorithm" "$str" --compressed-data
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+ receive_one "$str" "$@"
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+}
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+
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+test_one_stream_v1() {
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+ local str
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+ local algorithm
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+ algorithm="$1"
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+ shift
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+ str="$here/stream-$algorithm.stream"
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+
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+ run_check_mkfs_test_dev
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+ send_one "$algorithm" "$str" --proto 1
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+ receive_one "$str" "$@"
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+}
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+
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+test_mix_write_encoded() {
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+ local strzlib
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+ local strlzo
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+ local strzstd
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+ strzlib="$here/stream-zlib.stream"
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+ strlzo="$here/stream-lzo.stream"
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+ strzstd="$here/stream-zstd.stream"
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+
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+ run_check_mkfs_test_dev
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+
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+ send_one "zlib" "$strzlib" --compressed-data
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+ send_one "lzo" "$strlzo" --compressed-data
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+ send_one "zstd" "$strzstd" --compressed-data
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+
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+ receive_one "$strzlib"
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+ receive_one "$strlzo"
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+ receive_one "$strzstd"
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+}
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+
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+test_one_write_encoded "zlib"
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+test_one_write_encoded "lzo"
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+test_one_write_encoded "zstd"
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+
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+# with decompression forced
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+test_one_write_encoded "zlib" "--force-decompress"
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+test_one_write_encoded "lzo" "--force-decompress"
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+test_one_write_encoded "zstd" "--force-decompress"
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+
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+# send stream v1
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+test_one_stream_v1 "zlib"
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+test_one_stream_v1 "lzo"
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+test_one_stream_v1 "zstd"
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+
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+# files use a mix of compression algorithms
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+test_mix_write_encoded
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--
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2.35.1
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