devops: attempt to add mac 10.14 (#2076)

.travis.yml

@@ -1,42 +1,53 @@
 language: node_js
-os: linux
-dist: bionic
-addons:
-  apt:
-    packages:
-    # These are required to run webkit
-    - libwoff1
-    - libopus0
-    - libwebp6
-    - libwebpdemux2
-    - libenchant1c2a
-    - libgudev-1.0-0
-    - libsecret-1-0
-    - libhyphen0
-    - libgdk-pixbuf2.0-0
-    - libegl1
-    - libgles2
-    - libevent-2.1-6
-    - libnotify4
-    - libxslt1.1
-    - libvpx5
-    # This is required to run chromium
-    - libgbm1
-    # this is needed for running headful tests
-    - xvfb
 notifications:
   email: false
+
 install:
 - npm ci
+
 cache:
   directories:
   - node_modules
-script:
-- npm run lint
-- xvfb-run --auto-servernum npm run ctest
-- xvfb-run --auto-servernum npm run ftest
-- xvfb-run --auto-servernum npm run wtest
+
 jobs:
   include:
-  - node_js: '12'
+    - os: linux
+      dist: bionic
+      node_js: '12'
+      addons:
+        apt:
+          packages:
+          # These are required to run webkit
+          - libwoff1
+          - libopus0
+          - libwebp6
+          - libwebpdemux2
+          - libenchant1c2a
+          - libgudev-1.0-0
+          - libsecret-1-0
+          - libhyphen0
+          - libgdk-pixbuf2.0-0
+          - libegl1
+          - libgles2
+          - libevent-2.1-6
+          - libnotify4
+          - libxslt1.1
+          - libvpx5
+          # This is required to run chromium
+          - libgbm1
+          # this is needed for running headful tests
+          - xvfb
+      script:
+        - npm run lint
+        - xvfb-run --auto-servernum npm run ctest
+        - xvfb-run --auto-servernum npm run ftest
+        - xvfb-run --auto-servernum npm run wtest
+    - os: osx
+      osx_image: xcode11.3
+      node_js: '12'
+      script:
+        - npm run lint
+        - npm run ctest
+        - npm run ftest
+        - npm run wtest