mirror of
https://github.com/systemd/systemd.git
synced 2026-11-06 05:17:24 +00:00
Christian Brauner
5aa36ab4e1
test-cli-c.c and test-cli-rust.rs declare the same command, once in C and once in Rust. test-cli-parity.sh runs both with the same arguments and requires the same stdout, stderr and exit status byte for byte: - --help, --version and --introspect-cli, also with --json= - unknown, abbreviated and ambiguous options - options with required and optional arguments - repeated options - verbs with too few and too many arguments, unknown verbs and the default verb - valid and invalid --json= modes and --json=help - -- ending option parsing - a failing verb IOW, a program written in Rust looks and feels exactly like a C systemd binary. Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
99 lines
2.3 KiB
Bash
Executable File
99 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# Run the C and the Rust twin of the command line test program with the same arguments and require the
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# same stdout, the same stderr and the same exit status, byte for byte.
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#
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# Usage: test-cli-parity.sh C_BINARY RUST_BINARY
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set -eu
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set -o pipefail
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C="${1:?}"
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RUST="${2:?}"
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export SYSTEMD_COLORS=0 SYSTEMD_URLIFY=0 SYSTEMD_LOG_LEVEL=info SYSTEMD_PAGER=cat COLUMNS=80 TERM=dumb
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unset PAGER LESS
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tmp="$(mktemp -d)"
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trap 'rm -rf "$tmp"' EXIT
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# Error messages contain program_invocation_short_name, so both run under the same name.
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mkdir "$tmp/c" "$tmp/rust"
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ln -s "$(realpath "$C")" "$tmp/c/test-cli"
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ln -s "$(realpath "$RUST")" "$tmp/rust/test-cli"
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failed=0
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n=0
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check() {
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n=$((n + 1))
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for which in c rust; do
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set +e
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"$tmp/$which/test-cli" "$@" >"$tmp/$which.out" 2>"$tmp/$which.err"
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echo "$?" >"$tmp/$which.status"
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set -e
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done
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local bad=0
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for what in out err status; do
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if ! cmp -s "$tmp/c.$what" "$tmp/rust.$what"; then
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bad=1
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echo "*** test-cli $* — $what differs (< C, > Rust):"
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diff "$tmp/c.$what" "$tmp/rust.$what" || :
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fi
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done
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if [[ $bad -eq 1 ]]; then
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failed=$((failed + 1))
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fi
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# Both must have produced something to compare, or the run is hollow.
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if ! grep . "$tmp/c.out" "$tmp/c.err" >/dev/null; then
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echo "*** test-cli $* — no output at all"
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failed=$((failed + 1))
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fi
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}
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check --help
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check -h
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check help
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check --version
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check --introspect-cli
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check --json=short --introspect-cli
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check --no-such-option
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check -x
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check --frob
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check --frob=bar
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check --frob bar status
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check --fro=bar status
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check --no status
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check --verb status
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check
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check status
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check status extra
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check show
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check show a
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check show a b
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check show a b c
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check unknown
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check sho a
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check -j status
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check --json=pretty status
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check --json=bogus
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check --json=help
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check -v status
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check status -v
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check -vv -f x -f y status
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check -- --help
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check -- status --verbose
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check fail
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check fail more
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check --plumb status
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check --plumb=3 status
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check --plumb 3 status
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check --no-pager --no-legend -vf x show y
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check --help --version
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check --version --help
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echo "$n invocations compared, $failed differ"
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exit $((failed > 0))
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