Trying to change the build matrix to only run browser tests on Node 8

.travis.yml

@@ -1,36 +1,38 @@
-services:
-  - docker
-sudo: required
 language: node_js
-cache:
-  directories:
-    - node_modules
+
+env:
+  - TARGET=test
+
 node_js:
   - '6'
-  - '8'
+  - '8.7.0'
+  - '9'
   - '10'
-  - 'node'
-
-addons:
-  chrome: stable
-  apt:
-    packages:
-      - gcc-4.8
-      - g++-4.8
-env: CXX="g++-4.8" CC="gcc-4.8"
-
-script: 'npm run ci'
-after_success: '<coverage/lcov.info ./node_modules/coveralls/bin/coveralls.js'
 
-# jsdom 3.x fails on these, but jsdom 4.x+ fails on those below :(((
 matrix:
-  allow_failures:
-    - node_js: '3'
-    - node_js: '4'
   include:
+  - name: Lint
+    node_js: '8.7.0'
+    env:
+      - TARGET=lint
+  - name: Coverage
+    node_js: '8.7.0'
+    env:
+      - TARGET=coverage
   - name: BrowserStack IE11
-    node_js: '8'
-    env: BROWSER=ie11
+    node_js: '8.7.0'
+    env:
+      - TARGET=test-browser
+      - BROWSER=ie11
   - name: Chrome headless
-    node_js: "8"
-    env: BROWSER=ChromeHeadless
+    node_js: '8.7.0'
+    env:
+      - TARGET=test-browser
+      - BROWSER=ChromeHeadless
+
+addons:
+  chrome: stable
+
+script: npm run $TARGET
+
+after_success: '<coverage/lcov.info ./node_modules/coveralls/bin/coveralls.js'

package.json

@@ -21,7 +21,6 @@
     "test-docs": "mocha `find documentation -name '*.md'`",
     "test-node": "mocha ./test/*.js",
     "test-headless": "npm run test-browser",
-    "ci": "([ -z $BROWSER ] && npm run lint && npm run coverage); ([ -n $BROWSER ] && npm run test-browser)",
     "coverage": "nyc --reporter=lcov --reporter=text npm test",
     "preversion": "npm run build && npm run bundle && npm run lint && npm run test && git add unexpected-dom.*",
     "postversion": "npm run changelog && git add CHANGELOG.md && git commit --allow-empty -m 'Update changelog' && npm run generate-site && gh-pages -d site-build",