# Copyright (c) 2015-2016, Loïc Hoguin <essen@ninenines.eu>
# Copyright (c) 2014, Enrique Fernandez <enrique.fernandez@erlang-solutions.com>
# This file is contributed to erlang.mk and subject to the terms of the ISC License.

.PHONY: eunit apps-eunit

# Configuration

EUNIT_OPTS ?=
EUNIT_ERL_OPTS ?=
EUNIT_TEST_SPEC ?= $1

# Core targets.

tests:: eunit

help::
	$(verbose) printf "%s\n" "" \
		"EUnit targets:" \
		"  eunit       Run all the EUnit tests for this project"

# Plugin-specific targets.

define eunit.erl
	$(call cover.erl)
	CoverSetup(),
	case eunit:test($(call EUNIT_TEST_SPEC,$1), [$(EUNIT_OPTS)]) of
		ok -> ok;
		error -> halt(2)
	end,
	CoverExport("$(call core_native_path,$(COVER_DATA_DIR))/eunit.coverdata"),
	halt()
endef

EUNIT_ERL_OPTS += -pa $(TEST_DIR) $(CURDIR)/ebin

ifdef t
ifeq (,$(findstring :,$(t)))
eunit: test-build cover-data-dir
	$(gen_verbose) $(call erlang,$(call eunit.erl,['$(t)']),$(EUNIT_ERL_OPTS))
else
eunit: test-build cover-data-dir
	$(gen_verbose) $(call erlang,$(call eunit.erl,fun $(t)/0),$(EUNIT_ERL_OPTS))
endif
else
EUNIT_EBIN_MODS = $(notdir $(basename $(ERL_FILES) $(BEAM_FILES)))
EUNIT_TEST_MODS = $(notdir $(basename $(call core_find,$(TEST_DIR)/,*.erl)))

EUNIT_MODS = $(foreach mod,$(EUNIT_EBIN_MODS) $(filter-out \
	$(patsubst %,%_tests,$(EUNIT_EBIN_MODS)),$(EUNIT_TEST_MODS)),'$(mod)')

eunit: test-build $(if $(IS_APP)$(ROOT_DIR),,apps-eunit) cover-data-dir
ifneq ($(wildcard src/ $(TEST_DIR)),)
	$(gen_verbose) $(call erlang,$(call eunit.erl,[$(call comma_list,$(EUNIT_MODS))]),$(EUNIT_ERL_OPTS))
endif

ifneq ($(ALL_APPS_DIRS),)
apps-eunit: test-build
	$(verbose) eunit_retcode=0 ; for app in $(ALL_APPS_DIRS); do $(MAKE) -C $$app eunit IS_APP=1; \
		[ $$? -ne 0 ] && eunit_retcode=1 ; done ; \
		exit $$eunit_retcode
endif
endif