Add make test_watch

RoyalIcing · RoyalIcing · commit 3d99d1425a4d · 2020-05-14T22:19:06.000+10:00
diff --git a/Makefile b/Makefile
@@ -8,6 +8,9 @@ install_mix:
 install_assets:
 	cd apps/components_guide_web/assets/ && npm ci
 
+test_watch:
+  watchexec -e ex,exs mix test
+
 dev:
 	iex -S mix phx.server
 
