ci: add node 12 and electron tests

Author: AuHau

.travis.yml

@@ -7,6 +7,7 @@ stages:
 
 node_js:
   - '10'
+  - '12'
 
 os:
   - linux
@@ -43,6 +44,18 @@ jobs:
         - osx
       script: cd ./test/sharness && make
 
+    - stage: test
+      name: electron-main
+      os: osx
+      script:
+        - npx aegir test -t electron-main --bail --timeout 10000
+
+    - stage: test
+      name: electron-renderer
+      os: osx
+      script:
+        - npx aegir test -t electron-renderer --bail --timeout 10000
+
 notifications:
   email: false