#!/bin/bash
# self-test of src/tools/xref.sh --check: the checked-in baseline passes (exit 0), and a copy of it
# with one writer removed from one line fails (exit 1). works in a scratch directory; the tree,
# tests/xref.baseline and build/xref are not touched.
# usage: src/tools/xref_selftest.sh [SERVER]   (default build/bin/zclsp)
set -u
cd "$(dirname "$0")/../.."
case "${1:-}" in -h|--help) echo "usage: src/tools/xref_selftest.sh [SERVER]"; exit 0;; esac
server=${1:-build/bin/zclsp}
tmp=$(mktemp -d); trap 'rm -rf "$tmp"' EXIT
fail=0
bash src/tools/xref.sh --server "$server" --out "$tmp/out" --check > "$tmp/ok.log" 2>&1; r=$?
if [ $r = 0 ]; then echo "ok   xref --check passes against tests/xref.baseline"
else echo "FAIL xref --check against tests/xref.baseline: exit $r"; cat "$tmp/ok.log"; fail=1; fi
# drop the last writer of the first global that has one: --check must report it as a new writer
line=$(awk 'NF>=2{print NR; exit}' tests/xref.baseline)
sed "${line}s/ [^ ]*\$//" tests/xref.baseline > "$tmp/baseline"
bash src/tools/xref.sh --server "$server" --out "$tmp/out" --baseline "$tmp/baseline" --check > "$tmp/bad.log" 2>&1; r=$?
if [ $r = 1 ] && grep -q 'is now written by' "$tmp/bad.log"; then echo "ok   xref --check fails when the baseline misses a writer"
else echo "FAIL xref --check with a writer removed from the baseline: exit $r (want 1)"; cat "$tmp/bad.log"; fail=1; fi
exit $fail