################################################
# test engine

# where are the test outputs stored?
Wants= 	$(shell cd $(Want); ls )

# Header, for top of each test run
Hi=		printf "\n---| $(u) |-----------------------------------------\n\n"

# run one thing
run : 
	@$(Hi) 
	@$(MAKE) u=$u $u

# run one thing and cache the output
cache : 
	@$(MAKE) run  | tee $(Want)/$u
	@echo new test result cached to $(Want)/$u

# run one thing and compare output to the cache
test : $(Want)/$u
	@$(MAKE) run | tee $(Tmp)/$u.got 
	@if  diff -s $(Tmp)/$u.got $(Want)/$u > /dev/null;  \
        then echo PASSED $u ; \
        else echo FAILED $u,  got $(Tmp)/$u.got; \
    fi

# run all examples, don't test the outputs
egs : ready 
	@$(foreach x,$(EGS), $(MAKE) u=$x run; )

# run all things with  Want files, testing the output
tests : ready
	@$(foreach x, $(Wants), $(MAKE) u=$x test;)

# run all things with Want files, testing the output, counting pass/fails
score :
	@$(MAKE) tests | cut -d\  -f 1 | egrep '(PASSED|FAILED)' | sort | uniq -c