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path: root/tests/mkfs-tests/004-rootdir-keeps-size/test.sh
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#!/bin/bash
# make sure that mkfs.btrfs --rootsize does not change size of the image

source "$TEST_TOP/common"

check_prereq mkfs.btrfs

prepare_test_dev

test_mkfs_with_size() {
	local size
	local imgsize
	local tmp

	size="$1"
	run_check truncate -s"$size" "$TEST_DEV"
	imgsize=$(run_check_stdout stat --format=%s "$TEST_DEV")
	run_check $SUDO_HELPER "$TOP/mkfs.btrfs" -f \
		--rootdir "$INTERNAL_BIN/Documentation" \
		"$TEST_DEV"
	tmp=$(run_check_stdout stat --format=%s "$TEST_DEV")
	if ! [ "$imgsize" = "$tmp" ]; then
		_fail "image size changed from $imgsize to $tmp"
	fi
}

test_mkfs_with_size 128M
test_mkfs_with_size 256M
test_mkfs_with_size 512M
test_mkfs_with_size 1G
test_mkfs_with_size 2G