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Copy pathtest_check_littletest_skip_exit_code.sh
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executable file
·169 lines (140 loc) · 5.05 KB
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#!/usr/bin/env bash
#
# TASK-076 Cycle 1 / sentinel for `LT_SKIP` exit-code plumbing.
#
# Asserts that the littletest binary semantics for SKIP are:
#
# (a) A binary whose only outcomes are SKIPs exits 77 (Automake's SKIP
# code from `test-driver` line 131: `77:*) col=$blu res=SKIP …`).
# This is what makes "all dependencies missing" reportable to
# Automake as SKIP rather than PASS — the regression the rest of
# TASK-076 patches at every TLS test site.
#
# (b) A binary that mixes passes and skips exits 0 (the existing
# behaviour; SKIPs do not "infect" a successful run).
#
# (c) A binary that mixes a failure and a skip exits with the failure
# count (neither 0 nor 77) — failures dominate skips, per
# test_runner::operator()() in littletest.hpp: `to_ret` is only
# overridden to 77 when failures_counter == 0 && success_counter
# == 0 && skip_counter > 0; any failure short-circuits that.
#
# The script compiles three tiny throwaway TUs against the in-tree
# `test/littletest.hpp` and runs them. It is wired into Makefile.am as a
# `lint-`-style script (no library link required); it does NOT depend on
# anything libhttpserver-specific so it can run on any host with a C++
# compiler.
#
# Exit codes:
# 0 — both assertions held.
# 1 — at least one assertion failed.
#
set -euo pipefail
REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
LITTLETEST_HDR="$REPO_ROOT/test/littletest.hpp"
if [ ! -f "$LITTLETEST_HDR" ]; then
echo "ERROR: $LITTLETEST_HDR missing" >&2
exit 1
fi
# $CXX may carry flags (CI sets e.g. "g++ -std=c++20"), so split it into an
# array and expand with "${CXX_CMD[@]}" rather than quoting the whole string
# as a single command word (which would fail with "command not found").
# Mirrors scripts/check-deprecated-cookie-overload.sh.
read -r -a CXX_CMD <<< "${CXX:-c++}"
TMPDIR_=$(mktemp -d)
trap 'rm -rf "$TMPDIR_"' EXIT
# ---- (a) all-skip → exit 77 -------------------------------------------------
cat > "$TMPDIR_/only_skips.cpp" <<'EOF'
#include "littletest.hpp"
LT_BEGIN_SUITE(only_skips_suite)
void set_up() {}
void tear_down() {}
LT_END_SUITE(only_skips_suite)
LT_BEGIN_AUTO_TEST(only_skips_suite, this_test_only_skips)
LT_SKIP("dependency missing");
LT_END_AUTO_TEST(this_test_only_skips)
LT_BEGIN_AUTO_TEST_ENV()
AUTORUN_TESTS()
LT_END_AUTO_TEST_ENV()
EOF
"${CXX_CMD[@]}" -std=c++20 -I"$REPO_ROOT/test" \
"$TMPDIR_/only_skips.cpp" -o "$TMPDIR_/only_skips"
set +e
"$TMPDIR_/only_skips" > "$TMPDIR_/only_skips.log" 2>&1
ec_a=$?
set -e
if [ "$ec_a" -ne 77 ]; then
echo "FAIL (a): all-skip binary exited $ec_a, expected 77" >&2
cat "$TMPDIR_/only_skips.log" >&2
exit 1
fi
# ---- (b) pass + skip → exit 0 ----------------------------------------------
cat > "$TMPDIR_/mixed.cpp" <<'EOF'
#include "littletest.hpp"
LT_BEGIN_SUITE(mixed_suite)
void set_up() {}
void tear_down() {}
LT_END_SUITE(mixed_suite)
LT_BEGIN_AUTO_TEST(mixed_suite, this_passes)
LT_CHECK_EQ(1 + 1, 2);
LT_END_AUTO_TEST(this_passes)
LT_BEGIN_AUTO_TEST(mixed_suite, this_skips)
LT_SKIP("dependency missing");
LT_END_AUTO_TEST(this_skips)
LT_BEGIN_AUTO_TEST_ENV()
AUTORUN_TESTS()
LT_END_AUTO_TEST_ENV()
EOF
"${CXX_CMD[@]}" -std=c++20 -I"$REPO_ROOT/test" \
"$TMPDIR_/mixed.cpp" -o "$TMPDIR_/mixed"
set +e
"$TMPDIR_/mixed" > "$TMPDIR_/mixed.log" 2>&1
ec_b=$?
set -e
if [ "$ec_b" -ne 0 ]; then
echo "FAIL (b): mixed pass+skip binary exited $ec_b, expected 0" >&2
cat "$TMPDIR_/mixed.log" >&2
exit 1
fi
# Confirm the binary emitted the `[SKIP]` marker and the `-> N skipped`
# runner summary line — these are the textual contracts the CI lane
# greps for to assert per-test SKIPs in ws_start_stop fired.
if ! grep -q '^\[SKIP\] ' "$TMPDIR_/mixed.log"; then
echo "FAIL (b): mixed binary stdout missing '[SKIP] ' marker" >&2
cat "$TMPDIR_/mixed.log" >&2
exit 1
fi
if ! grep -qE '^-> [0-9]+ skipped' "$TMPDIR_/mixed.log"; then
echo "FAIL (b): runner summary missing '-> N skipped' line" >&2
cat "$TMPDIR_/mixed.log" >&2
exit 1
fi
# ---- (c) fail + skip → exit == failure count (neither 0 nor 77) ------------
cat > "$TMPDIR_/fail_and_skip.cpp" <<'EOF'
#include "littletest.hpp"
LT_BEGIN_SUITE(fail_and_skip_suite)
void set_up() {}
void tear_down() {}
LT_END_SUITE(fail_and_skip_suite)
LT_BEGIN_AUTO_TEST(fail_and_skip_suite, this_fails)
LT_CHECK_EQ(1, 2);
LT_END_AUTO_TEST(this_fails)
LT_BEGIN_AUTO_TEST(fail_and_skip_suite, this_skips)
LT_SKIP("dependency missing");
LT_END_AUTO_TEST(this_skips)
LT_BEGIN_AUTO_TEST_ENV()
AUTORUN_TESTS()
LT_END_AUTO_TEST_ENV()
EOF
"${CXX_CMD[@]}" -std=c++20 -I"$REPO_ROOT/test" \
"$TMPDIR_/fail_and_skip.cpp" -o "$TMPDIR_/fail_and_skip"
set +e
"$TMPDIR_/fail_and_skip" > "$TMPDIR_/fail_and_skip.log" 2>&1
ec_c=$?
set -e
if [ "$ec_c" -ne 1 ]; then
echo "FAIL (c): fail+skip binary exited $ec_c, expected 1 (the failure count)" >&2
cat "$TMPDIR_/fail_and_skip.log" >&2
exit 1
fi
echo "PASS — littletest SKIP exit-code semantics held (77 for all-skip, 0 for mixed pass+skip, failure count for fail+skip)"