+# The following machinery tests the game against a binary made from
+# the advent430 branch To use it, switch to that branch, build the
+# binary, run it once to generate adventure.data, then switch back to
+# master leaving advent430 and adventure.data in place (make clean
+# does not remove them).
+#
+# The diff file produced has corrected spellings in it. That's what oldfilter
+# is for, to massage out the orioginal dpellings and avoid noise diffs.
+# Diffs in amount of whitespace and trailing whitespace are ignored
+#
+# A magic comment of NOCOMPARE in a log file excludes it from this comparison.
+# making it a skipped test in the TAP view. First use of this was to avoid a
+# spurious mismatch on the news text. Other uses avoid spurios mismatches due
+# to bug fixes.
+#
+# When adding more tests, bear in mind that any game that continues after a
+# resurrection will need a NOCOMPARE. At some point in the forward port,
+# resurrection was accidentally changed in a way that messed wil the LCG chain.
+#
+TAPFILTER=tapview
+ancient: $(SGAMES)
+ @if [ -f ../advent430 ]; then cp ../advent430 ../adventure.data .; else echo "advent430 nonexistent"; exit 1; fi
+ @-(for x in *.log; do \
+ stem=$${x%.log}; \
+ legend=$$(sed -n '/^## /s///p' <$$x 2>/dev/null || echo "(no description)"); \
+ if grep NOCOMPARE $$x >/dev/null; \
+ then echo "not ok - $${stem}.ochk: $${legend} # SKIP"; \
+ else \
+ ./advent430 <$${stem}.log | oldfilter >$${stem}.ochk; \
+ ./newfilter <$${stem}.chk | tapdiffer -w "$${stem}: $${legend}" $${stem}.ochk; \
+ fi; \
+ done; \
+ echo 1..$(words $(shell ls *.log))) | $(TAPFILTER)
+ @rm *.ochk advent430 adventure.data
+