Add tests for external plugins

test/core_plugins.mk

@@ -0,0 +1,76 @@
+# Core: External plugins.
+
+CORE_PLUGINS_CASES = all one
+CORE_PLUGINS_TARGETS = $(addprefix core-plugins-,$(CORE_PLUGINS_CASES))
+CORE_PLUGINS_CLEAN_TARGETS = $(addprefix clean-,$(CORE_PLUGINS_TARGETS))
+
+.PHONY: core-plugins $(CORE_PLUGINS_TARGETS) clean-core-plugins $(CORE_PLUGINS_CLEAN_TARGETS)
+
+clean-core-plugins: $(CORE_PLUGINS_CLEAN_TARGETS)
+
+$(CORE_PLUGINS_CLEAN_TARGETS):
+	$t rm -rf $(APP_TO_CLEAN)/
+
+core-plugins: $(CORE_PLUGINS_TARGETS)
+
+core-plugins-all: build clean-core-plugins-all
+
+	$i "Bootstrap a new OTP library named $(APP)"
+	$t mkdir $(APP)/
+	$t cp ../erlang.mk $(APP)/
+	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap-lib $v
+
+	$i "Create a local git repository with two plugins"
+	$t mkdir -p $(APP)/plugin_dep/mk
+	$t echo "plugin1: ; @echo \$$@" > $(APP)/plugin_dep/mk/plugin1.mk
+	$t echo "plugin2: ; @echo \$$@" > $(APP)/plugin_dep/mk/plugin2.mk
+	$t echo "THIS := \$$(dir \$$(realpath \$$(lastword \$$(MAKEFILE_LIST))))" > $(APP)/plugin_dep/plugins.mk
+	$t printf "%s\n" "include \$$(THIS)/mk/plugin1.mk" >> $(APP)/plugin_dep/plugins.mk
+	$t printf "%s\n" "include \$$(THIS)/mk/plugin2.mk" >> $(APP)/plugin_dep/plugins.mk
+# We check that overriding THIS doesn't cause an error.
+	$t echo "THIS :=" >> $(APP)/plugin_dep/plugins.mk
+	$t cd $(APP)/plugin_dep && git init && git add . && git commit -m "Tests"
+
+	$i "Add dependency and plugins to the Makefile"
+	$t sed -i.bak '2i\
+DEPS = plugin_dep\
+dep_plugin_dep = git file://$(abspath $(APP)/plugin_dep) master\
+DEP_PLUGINS = plugin_dep\
+' $(APP)/Makefile
+
+	$i "Run 'make plugin1' and check that it prints plugin1"
+	$t test -n "`$(MAKE) -C $(APP) plugin1 | grep plugin1`"
+
+	$i "Run 'make plugin2' and check that it prints plugin2"
+	$t test -n "`$(MAKE) -C $(APP) plugin2 | grep plugin2`"
+
+core-plugins-one: build clean-core-plugins-one
+
+	$i "Bootstrap a new OTP library named $(APP)"
+	$t mkdir $(APP)/
+	$t cp ../erlang.mk $(APP)/
+	$t $(MAKE) -C $(APP) -f erlang.mk bootstrap-lib $v
+
+	$i "Create a local git repository with two plugins"
+	$t mkdir -p $(APP)/plugin_dep/mk
+	$t echo "plugin1: ; @echo \$$@" > $(APP)/plugin_dep/mk/plugin1.mk
+	$t echo "plugin2: ; @echo \$$@" > $(APP)/plugin_dep/mk/plugin2.mk
+	$t echo "THIS := \$$(dir \$$(realpath \$$(lastword \$$(MAKEFILE_LIST))))" > $(APP)/plugin_dep/plugins.mk
+	$t printf "%s\n" "include \$$(THIS)/mk/plugin1.mk" >> $(APP)/plugin_dep/plugins.mk
+	$t printf "%s\n" "include \$$(THIS)/mk/plugin2.mk" >> $(APP)/plugin_dep/plugins.mk
+# We check that overriding THIS doesn't cause an error.
+	$t echo "THIS :=" >> $(APP)/plugin_dep/plugins.mk
+	$t cd $(APP)/plugin_dep && git init && git add . && git commit -m "Tests"
+
+	$i "Add dependency and plugins to the Makefile"
+	$t sed -i.bak '2i\
+DEPS = plugin_dep\
+dep_plugin_dep = git file://$(abspath $(APP)/plugin_dep) master\
+DEP_PLUGINS = plugin_dep/mk/plugin1.mk\
+' $(APP)/Makefile
+
+	$i "Run 'make plugin1' and check that it prints plugin1"
+	$t test -n "`$(MAKE) -C $(APP) plugin1 | grep plugin1`"
+
+	$i "Run 'make plugin2' and confirm the target doesn't exist"
+	$t if `$(MAKE) -C $(APP) plugin2`; then false; fi