[infer][tests] Print a message when all tests are passing

Summary: This message should be printed in the standard output once all the tests have passed which makes it easier to dinstinguish the cases when some tests fail from the cases where all tests are fine.

Reviewed By: sblackshear

Differential Revision: D4150022

fbshipit-source-id: 6be39c2

Makefile

@@ -186,10 +186,18 @@ inferScriptMode_test: toplevel
 	$(call silent_on_success,\
 	 INFER_REPL_BINARY=ocaml $(SCRIPT_DIR)/infer_repl $(INFER_DIR)/tests/repl/infer_batch_script.ml)
 
-.PHONY: test
-test: test_build ocaml_unit_test buck_test inferTraceBugs_test inferScriptMode_test
+.PHONY: run-test
+run-test: test_build ocaml_unit_test buck_test inferTraceBugs_test inferScriptMode_test
 	$(MAKE) -C $(SRC_DIR) mod_dep.dot
 
+.PHONY: test
+test:
+ifeq (,$(findstring s,$(MAKEFLAGS)))
+	@$(MAKE) run-test && echo "ALL TESTS PASSED"
+else
+	@$(MAKE) run-test || echo "SOME TEST FAILED"
+endif
+
 .PHONY: quick-test
 quick-test: test_this_build ocaml_unit_test