tests: converted to Makefiles

Makefile

@@ -31,6 +31,13 @@ RUSTLIBS = --extern getopt=build/o/libgetopt.rlib \
 	--extern strerror=build/o/libstrerror.rlib
 CFLAGS += -I$(SYSEXITS)
 
+# testing requires the absolute path to the bin directory set
+BIN = build/bin
+include tests/tests.mk
+
+.PHONY: default
+default: all test
+
 .PHONY: all
 all: dj false fop hru intcmp mm npc rpn scrut str strcmp swab true
 
@@ -53,8 +60,8 @@ install: dist
 	cp -r $(DESTDIR)/* /
 
 .PHONY: test
-test: all build /tmp/getopt
-	tests/test.sh
+test: all $(TESTS) /tmp/getopt
+	@echo $(TESTS)
 	/tmp/getopt
 
 /tmp/getopt: src/libgetopt.rs