-check_PROGRAMS = test_array test_number test_object
+check_PROGRAMS = test_array test_simple test_number test_object
test_array_SOURCES = test_array.c util.h
+test_simple_SOURCES = test_simple.c util.h
test_number_SOURCES = test_number.c util.h
test_object_SOURCES = test_number.c util.h