# use NO_TEST=1 to skip the tests
NO_TEST:=

# use MAKE_REF=1 to generate new reference files
MAKE_REF:=

# Run tests interleaved with main build.  They have to be in the same target for this.
real-all: $(if $(NO_TEST),,test)

# the test suite
TESTFILES:=$(shell find tests -name "*.v")
NORMALIZER:=test-normalizer.sed

test: $(TESTFILES:.v=.vo)
# Make sure everything imports the options, and all Instance/Argument/Hint are qualified.
	$(HIDE)for FILE in $(VFILES); do \
	  if ! fgrep -q 'From iris.prelude Require Import options.' "$$FILE"; then echo "ERROR: $$FILE does not import 'options'."; echo; exit 1; fi ; \
	  if egrep '^\s*(Instance|Arguments|Remove|Hint (Extern|Constructors|Resolve|Immediate|Mode|Opaque|Transparent|Unfold))\s' "$$FILE"; then echo "ERROR: $$FILE contains unqualified 'Instance'/'Arguments'/'Hint' (see above)."; echo; exit 1; fi \
	done
# Make sure main Iris does not import other Iris packages.
	$(HIDE)if egrep 'iris\.(heap_lang|deprecated|staging)' --include "*.v" -R iris; then echo "ERROR: Iris may not import modules from other Iris packages (see above for violations)."; echo; exit 1; fi
.PHONY: test

COQ_TEST=$(COQTOP) $(COQDEBUG) -batch -test-mode
# Need to make this a lazy variable (`=` instead of `:=`) since COQ_VERSION is only set later.
COQ_MINOR_VERSION=$(shell echo "$(COQ_VERSION)" | egrep '^[0-9]+\.[0-9]+\b' -o)

tests/.coqdeps.d: $(TESTFILES)
	$(SHOW)'COQDEP TESTFILES'
	$(HIDE)$(COQDEP) -dyndep var $(COQMF_COQLIBS_NOML) $^ $(redir_if_ok)
-include tests/.coqdeps.d

# Main test script (comments out-of-line because macOS otherwise barfs?!?)
# - Determine reference file (`REF`).
# - Print user-visible status line.
# - Dump Coq output into a temporary file.
# - Run `sed -i` on that file in a way that works on macOS.
# - Either compare the result with the reference file, or move it over the reference file.
# - Cleanup, and mark as done for make.
$(TESTFILES:.v=.vo): %.vo: %.v $(if $(MAKE_REF),,%.ref) $(NORMALIZER)
	$(HIDE)if test -f $*".$(COQ_MINOR_VERSION).ref"; then \
	    REF=$*".$(COQ_MINOR_VERSION).ref"; \
	  else \
	    REF=$*".ref"; \
	  fi && \
	  echo "COQTEST$(if $(MAKE_REF), [make ref],) $< (ref: $$REF)" && \
	  TMPFILE="$$(mktemp)" && \
	  $(TIMER) $(COQ_TEST) $(COQFLAGS) $(COQLIBS) -load-vernac-source $< > "$$TMPFILE" && \
	  sed -f $(NORMALIZER) "$$TMPFILE" > "$$TMPFILE".new && \
	  mv "$$TMPFILE".new "$$TMPFILE" && \
	  $(if $(MAKE_REF),mv "$$TMPFILE" "$$REF",diff -u "$$REF" "$$TMPFILE") && \
	  rm -f "$$TMPFILE" && \
	  touch $@