Add EUnit tests and documentation

Also includes a fix for multi-application repositories.

1 files changed, 22 insertions, 6 deletions

diff --git a/plugins/eunit.mk b/plugins/eunit.mk
index 2adf4a6..36de6e7 100644
--- a/plugins/eunit.mk
+++ b/plugins/eunit.mk
@@ -2,7 +2,7 @@
 # Copyright (c) 2015, Loïc Hoguin <[email protected]>
 # This file is contributed to erlang.mk and subject to the terms of the ISC License.
 
-.PHONY: eunit
+.PHONY: eunit apps-eunit
 
 # Configuration
 
@@ -28,7 +28,7 @@ define eunit.erl
 				_ -> ok
 			end
 	end,
-	case eunit:test([$(call comma_list,$(1))], [$(EUNIT_OPTS)]) of
+	case eunit:test($1, [$(EUNIT_OPTS)]) of
 		ok -> ok;
 		error -> halt(2)
 	end,
@@ -40,11 +40,27 @@ define eunit.erl
 	halt()
 endef
 
+EUNIT_PATHS = -pa $(TEST_DIR) $(DEPS_DIR)/*/ebin $(APPS_DIR)/*/ebin ebin
+
+ifdef t
+ifeq (,$(findstring :,$(t)))
+eunit: test-build
+	$(gen_verbose) $(call erlang,$(call eunit.erl,['$(t)']),$(EUNIT_PATHS))
+else
+eunit: test-build
+	$(gen_verbose) $(call erlang,$(call eunit.erl,fun $(t)/0),$(EUNIT_PATHS))
+endif
+else
 EUNIT_EBIN_MODS = $(notdir $(basename $(call core_find,ebin/,*.beam)))
 EUNIT_TEST_MODS = $(notdir $(basename $(call core_find,$(TEST_DIR)/,*.beam)))
 EUNIT_MODS = $(foreach mod,$(EUNIT_EBIN_MODS) $(filter-out \
-	$(patsubst %,%_tests,$(EUNIT_EBIN_MODS)),$(EUNIT_TEST_MODS)),{module,'$(mod)'})
+	$(patsubst %,%_tests,$(EUNIT_EBIN_MODS)),$(EUNIT_TEST_MODS)),'$(mod)')
 
-eunit: test-build
-	$(gen_verbose) $(ERL) -pa $(TEST_DIR) $(DEPS_DIR)/*/ebin ebin \
-		-eval "$(subst $(newline),,$(subst ",\",$(call eunit.erl,$(EUNIT_MODS))))"
+eunit: test-build $(if $(IS_APP),,apps-eunit)
+	$(gen_verbose) $(call erlang,$(call eunit.erl,[$(call comma_list,$(EUNIT_MODS))]),$(EUNIT_PATHS))
+
+ifneq ($(ALL_APPS_DIRS),)
+apps-eunit:
+	$(verbose) for app in $(ALL_APPS_DIRS); do $(MAKE) -C $$app eunit IS_APP=1; done
+endif
+endif