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Diffstat (limited to '')
| -rwxr-xr-x | test/units/TEST-07-PID1.exec-deserialization.sh | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/test/units/TEST-07-PID1.exec-deserialization.sh b/test/units/TEST-07-PID1.exec-deserialization.sh new file mode 100755 index 0000000..04f17c8 --- /dev/null +++ b/test/units/TEST-07-PID1.exec-deserialization.sh @@ -0,0 +1,221 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: LGPL-2.1-or-later +# shellcheck disable=SC2016 +set -eux +set -o pipefail + +# shellcheck source=test/units/test-control.sh +. "$(dirname "$0")"/test-control.sh +# shellcheck source=test/units/util.sh +. "$(dirname "$0")"/util.sh + +setup_base_unit() { + local unit_path="${1:?}" + local log_file="${2:?}" + local unit_name="${unit_path##*/}" + + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=sleep 3 +ExecStart=bash -c "echo foo >>$log_file" +EOF + systemctl daemon-reload + + systemctl --job-mode=replace --no-block start "$unit_name" + # Wait until the unit leaves the "inactive" state + timeout 5s bash -xec "while [[ \"\$(systemctl show -P ActiveState $unit_name)\" == inactive ]]; do sleep .1; done" + # Sleep for 1 second from the unit start to get well "into" the first (or second) ExecStart= directive + sleep 1 +} + +check_output() { + local unit_name="${1:?}" + local log_file="${2:?}" + local expected="${3?}" + local unit_name="${unit_path##*/}" + + # Wait until the unit becomes inactive before checking the log + timeout 10s bash -xec "while [[ \"\$(systemctl show -P ActiveState $unit_name)\" != inactive ]]; do sleep .5; done" + + diff "$log_file" <(echo -ne "$expected") +} + +testcase_no_change() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-no-change-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Simple sanity test without any reordering shenanignans, to check if the base unit works as expected. + check_output "$unit_path" "$log_file" "foo\n" + + rm -f "$unit_path" "$log_file" +} + +testcase_swapped() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-swapped-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Swap the two ExecStart= lines. + # + # Since we should be in the first "sleep" of the base unit, after replacing the unit with the following + # one we should continue running from the respective "ExecStart=sleep 3" line, which is now the last + # one, resulting no output in the final log file. + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=bash -c "echo foo >>$log_file" +ExecStart=sleep 3 +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "" + + rm -f "$unit_path" "$log_file" +} + +testcase_added_before() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-added-before-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Add one new ExecStart= before the existing ones. + # + # Since, after reload, we should continue running from the "sleep 3" statement, the newly added "echo + # bar" one will have no effect and we should end up with the same output as in the previous case. + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=bash -c "echo bar >>$log_file" +ExecStart=sleep 3 +ExecStart=bash -c "echo foo >>$log_file" +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "foo\n" + + rm -f "$unit_path" "$log_file" +} + +testcase_added_after() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-added-after-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Add an ExecStart= line after the existing ones. + # + # Same case as above, except the newly added ExecStart= should get executed, as it was added after the + # "sleep 3" statement. + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=sleep 3 +ExecStart=bash -c "echo foo >>$log_file" +ExecStart=bash -c "echo bar >>$log_file" +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "foo\nbar\n" + + rm -f "$unit_path" "$log_file" +} + +testcase_interleaved() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-interleaved-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Combination of the two previous cases. + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=bash -c "echo baz >>$log_file" +ExecStart=sleep 3 +ExecStart=bash -c "echo foo >>$log_file" +ExecStart=bash -c "echo bar >>$log_file" +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "foo\nbar\n" + + rm -f "$unit_path" "$log_file" +} + +testcase_removal() { + local unit_path log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-removal-XXX.service)" + log_file="$(mktemp)" + + setup_base_unit "$unit_path" "$log_file" + + # Remove the currently executed ExecStart= line. + # + # In this case we completely drop the currently executed "sleep 3" statement, so after reload systemd + # should complain that the currently executed command vanished and simply finish executing the unit, + # resulting in an empty log. + cat >"$unit_path" <<EOF +[Service] +Type=oneshot +ExecStart=bash -c "echo bar >>$log_file" +ExecStart=bash -c "echo baz >>$log_file" +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "" + + rm -f "$unit_path" "$log_file" +} + +testcase_issue_6533() { + local unit_path unit_name log_file + + unit_path="$(mktemp /run/systemd/system/test-deserialization-issue-6533-XXX.service)" + unit_name="${unit_path##*/}" + log_file="$(mktemp)" + + cat >"$unit_path" <<EOF +[Service] +Type=simple +ExecStart=/bin/sleep 5 +EOF + systemctl daemon-reload + + systemctl --job-mode=replace --no-block start "$unit_name" + sleep 2 + + # Make sure we try to execute the next command only for oneshot services, as for other types we allow + # only one ExecStart= directive. + # + # See: https://github.com/systemd/systemd/issues/6533 + cat >"$unit_path" <<EOF +[Service] +Type=simple +ExecStart=/bin/sleep 5 +ExecStart=bash -c "echo foo >>$log_file" +EOF + systemctl daemon-reload + + check_output "$unit_path" "$log_file" "" + (! journalctl -b --grep "Freezing execution" _PID=1) +} + +mkdir -p /run/systemd/system/ +run_testcases +systemctl daemon-reload |