build: make test-ci output TAP to stdout and log

Closes: #810
PR-URL: #938
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

Author: rvagg

.gitignore

@@ -76,3 +76,4 @@ deps/zlib/zlib.target.mk
 # test artifacts
 tools/faketime
 icu_config.gypi
+test.tap

Makefile

@@ -106,8 +106,8 @@ test-all: test-build test/gc/node_modules/weak/build/Release/weakref.node
 test-all-valgrind: test-build
 	$(PYTHON) tools/test.py --mode=debug,release --valgrind
 
-test-ci: test-build
-	$(PYTHON) tools/test.py -J parallel sequential message addons
+test-ci:
+	$(PYTHON) tools/test.py -p tap --logfile test.tap -J parallel sequential message
 
 test-release: test-build
 	$(PYTHON) tools/test.py --mode=release