##
# Build test executables
##

test/%$(EXE) : CXXFLAGS += $(CXXFLAGS_GTEST)
test/%$(EXE) : CPPFLAGS += $(CPPFLAGS_GTEST)
test/%$(EXE) : INC += $(INC_GTEST) -I $(RAPIDJSON)
test/%$(EXE) : test/%.o $(GTEST)/src/gtest_main.cc $(GTEST)/src/gtest-all.o $(LIBSUNDIALS) $(MPI_TARGETS) $(TBB_TARGETS)
	$(LINK.cpp) $(filter-out src/test/test-models/% src/%.csv bin/% test/%.hpp %.hpp-test,$^) $(LDLIBS) $(OUTPUT_OPTION)

test/%.o : src/test/%.cpp
	@mkdir -p $(dir $@)
	$(COMPILE.cpp) $< $(OUTPUT_OPTION)

##
# Customization for generating dependencies
##
src/test/%.d : src/test/%.hpp
src/test/%.d : CXXFLAGS += $(CXXFLAGS_GTEST)
src/test/%.d : CPPFLAGS += $(CPPFLAGS_GTEST)
src/test/%.d : INC += $(INC_GTEST)
src/test/%.d : test/%.o

ifneq ($(filter test/%,$(MAKECMDGOALS)),)
-include $(patsubst test/%$(EXE),src/test/%.d,$(filter test/%,$(MAKECMDGOALS)))
-include $(patsubst %.cpp,%.d,$(STANC_TEMPLATE_INSTANTIATION_CPP))
endif

############################################################
#
# Target to verify header files within CmdStan has
# enough include calls
##
HEADER_TESTS := $(addsuffix -test,$(call findfiles,src/cmdstan,*.hpp))

ifeq ($(OS),Windows_NT)
  DEV_NULL = nul
else
  DEV_NULL = /dev/null
endif

%.hpp-test : %.hpp test/dummy.cpp
	$(COMPILE.cpp) -O0 -include $^ -o $(DEV_NULL)

test/dummy.cpp:
	@mkdir -p test
	@touch $@
	@echo "int main() {return 0;}" >> $@

.PHONY: test-headers
test-headers: $(HEADER_TESTS)

############################################################
#
# Target to generate C++ code for all test-models
##
TEST_MODELS := $(wildcard src/test/test-models/*.stan)

.PHONY: test-models-hpp
test-models-hpp:
	$(MAKE) $(patsubst %.stan,%$(EXE),$(TEST_MODELS))

##
# Tests that depend on compiled models
##
test/interface/generated_quantities_test$(EXE): $(addsuffix $(EXE),$(addprefix src/test/test-models/, bern_gq_model  bern_extra_model test_model))
test/interface/command_test$(EXE): $(addsuffix $(EXE),$(addprefix src/test/test-models/, printer domain_fail proper value_fail transformed_data_rng_test ndim_array))
test/interface/metric_test$(EXE): $(addsuffix $(EXE),$(addprefix src/test/test-models/, test_model proper))
test/interface/csv_header_consistency_test$(EXE): src/test/test-models/csv_header_consistency$(EXE)
test/interface/diagnose_test$(EXE): bin/diagnose$(EXE)
test/interface/elapsed_time_test$(EXE): src/test/test-models/test_model$(EXE)
test/interface/fixed_param_sampler_test$(EXE): $(addsuffix $(EXE),$(addprefix src/test/test-models/, empty proper))
test/interface/mpi_test$(EXE): $(addsuffix $(EXE),$(addprefix src/test/test-models/, proper))
test/interface/model_output_test$(EXE): src/test/test-models/printer$(EXE)
test/interface/optimization_output_test$(EXE): src/test/test-models/optimization_output$(EXE)
test/interface/print_test$(EXE): bin/print$(EXE)
test/interface/print_uninitialized_test$(EXE): src/test/test-models/print_uninitialized$(EXE)
test/interface/arguments/argument_configuration_test$(EXE): src/test/test-models/test_model$(EXE)
test/interface/stansummary_test$(EXE): bin/stansummary$(EXE)
test/interface/variational_output_test$(EXE): src/test/test-models/variational_output$(EXE)
