1 files changed, 123 insertions, 0 deletions
diff --git a/tests/integration.sh b/tests/integration.sh
new file mode 100755
index 0000000..ea847e4
--- /dev/null
+++ b/tests/integration.sh
@@ -0,0 +1,123 @@
+#!/bin/sh
+# integration.sh - end-to-end test against a real LaTeX document
+#
+# Requires pdflatex and bibtex; skipped otherwise. Set BIBTEST_NET=1 to
+# also exercise bib-fetch against doi.org (needs network access).
+
+ROOT=$(cd "$(dirname "$0")/.." && pwd)
+PATH=$ROOT:$PATH
+LSKEYS="awk -f $ROOT/lib/bib-parse.awk -f $ROOT/lib/bib-lskeys.awk"
+
+command -v pdflatex > /dev/null 2>&1 && command -v bibtex > /dev/null 2>&1 || {
+  printf 'integration: pdflatex/bibtex not found, skipping\n' >&2
+  exit 0
+}
+
+tmpd=$(mktemp -d) || exit 1
+trap 'rm -rf "$tmpd"' EXIT INT TERM
+cd "$tmpd" || exit 1
+
+pass=0
+fail=0
+ok() { pass=$((pass + 1)); printf 'ok   - %s\n' "$1"; }
+not_ok() { fail=$((fail + 1)); printf 'FAIL - %s\n' "$1"; }
+
+# ---- build a database with bib-gen | bib-add ---------------------------
+bib-gen -t article author='Donald E. Knuth' title='Literate Programming' \
+  journal='The Computer Journal' year=1984 volume=27 number=2 \
+  pages='97--111' | bib-add master.bib
+bib-gen -t article author='Alan M. Turing' \
+  title='Computing Machinery and Intelligence' journal='Mind' year=1950 \
+  volume=59 pages='433--460' | bib-add master.bib
+printf 'Claude E. Shannon\tA Mathematical Theory of Communication\tBell System Technical Journal\t1948
+Edsger W. Dijkstra\tGo To Statement Considered Harmful\tCommunications of the ACM\t1968
+' | bib-gen -F author,title,journal,year | bib-add master.bib
+
+n=$($LSKEYS master.bib | wc -l)
+[ "$n" -eq 4 ] && ok "database built with 4 entries" \
+               || not_ok "database built with 4 entries (got $n)"
+
+# ---- compile a document citing a subset --------------------------------
+cat > paper.tex <<'EOF'
+\documentclass{article}
+\begin{document}
+Machines may think~\cite{turing1950computing}; programs are
+literature~\cite{knuth1984literate}.
+
+DOI: 10.1093/comjnl/27.2.97
+\bibliographystyle{plain}
+\bibliography{master}
+\end{document}
+EOF
+pdflatex -interaction=batchmode paper.tex > /dev/null 2>&1
+
+grep -q 'citation{turing1950computing}' paper.aux \
+  && ok "pdflatex produced citations in aux" \
+  || not_ok "pdflatex produced citations in aux"
+
+# ---- extract the cited subset and build against it ---------------------
+bib-extract paper.aux master.bib > paper.bib
+n=$($LSKEYS paper.bib | wc -l)
+[ "$n" -eq 2 ] && ok "bib-extract kept the 2 cited entries" \
+               || not_ok "bib-extract kept the 2 cited entries (got $n)"
+
+sed 's/\\bibdata{master}/\\bibdata{paper}/' paper.aux > tmp.aux \
+  && mv tmp.aux paper.aux
+bibtex paper > bibtex.log 2>&1
+grep -qi 'error\|warning' bibtex.log \
+  && not_ok "bibtex accepts canonical output cleanly" \
+  || ok "bibtex accepts canonical output cleanly"
+
+pdflatex -interaction=batchmode paper.tex > /dev/null 2>&1
+pdflatex -interaction=batchmode paper.tex > /dev/null 2>&1
+if grep -qi 'undefined' paper.log; then
+  not_ok "document resolves all citations"
+else
+  ok "document resolves all citations"
+fi
+[ -s paper.pdf ] && ok "pdf produced" || not_ok "pdf produced"
+
+# ---- convert roundtrip --------------------------------------------------
+bib-convert master.bib | bib-convert > roundtrip.bib
+if [ "$($LSKEYS master.bib | sort)" = "$($LSKEYS roundtrip.bib | sort)" ]; then
+  ok "bibtex -> refer -> bibtex preserves all keys"
+else
+  not_ok "bibtex -> refer -> bibtex preserves all keys"
+fi
+
+# ---- bib-fetch against the built pdf (network) --------------------------
+if [ "$BIBTEST_NET" = 1 ]; then
+  if bib-fetch paper.pdf > fetched.bib 2> /dev/null; then
+    grep -q '^@article{knuth1984literate,' fetched.bib \
+      && ok "bib-fetch resolves DOI from built pdf" \
+      || not_ok "bib-fetch resolves DOI from built pdf"
+    if bib-fetch paper.pdf 2> /dev/null | bib-add master.bib 2> /dev/null; then
+      not_ok "fetched entry detected as duplicate"
+    else
+      ok "fetched entry detected as duplicate"
+    fi
+  else
+    not_ok "bib-fetch resolves DOI from built pdf"
+  fi
+  bib-fetch -a 1706.03762 2> /dev/null \
+      | grep -q '^@misc{vaswani[0-9]*attention,' \
+    && ok "bib-fetch resolves arXiv id" \
+    || not_ok "bib-fetch resolves arXiv id"
+  cat > arx.tex <<'EOF'
+\documentclass{article}
+\begin{document}
+A preprint without any DOI.
+
+arXiv:1706.03762v7 [cs.CL] 2 Aug 2023
+\end{document}
+EOF
+  pdflatex -interaction=batchmode arx.tex > /dev/null 2>&1
+  bib-fetch arx.pdf 2> /dev/null | grep -q 'eprint = {1706.03762}' \
+    && ok "bib-fetch extracts arXiv id from pdf" \
+    || not_ok "bib-fetch extracts arXiv id from pdf"
+else
+  printf 'skip - bib-fetch network tests (set BIBTEST_NET=1 to enable)\n'
+fi
+
+printf '\n%d passed, %d failed\n' "$pass" "$fail"
+[ "$fail" -eq 0 ]