Run stylelint's tests during our CI tests.

.gitmodules

@@ -1,3 +1,4 @@
 [submodule "integration/stylelint"]
 	path = integration/stylelint
-	url = https://github.com/stylelint/stylelint.git
+	url = https://github.com/chriseppstein/stylelint.git
+  branch = selector-parser-4.0

.npmignore

@@ -0,0 +1 @@
+integration/*/

.travis.yml

@@ -3,11 +3,24 @@ sudo: false
 language: node_js
 matrix:
   include:
+    - node_js: '10'
+      env: INTEGRATION=false
     - node_js: '8'
-    - node_js: '7'
+      env: INTEGRATION=true
     - node_js: '6'
+      env: INTEGRATION=false
     - node_js: '5'
+      env: INTEGRATION=false
     - node_js: '4'
-
+      env: INTEGRATION=false
+install:
+  - npm install -g npm@latest
+  - npm ci
+script:
+  - npm test
+  - ./integration_test.sh
+cache:
+  directories:
+    - ~/.npm
 after_success:
   - './node_modules/.bin/nyc report --reporter=text-lcov | ./node_modules/.bin/coveralls'

integration_test.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+if [[ $INTEGRATION == "false" ]]; then
+  exit 0;
+fi
+git submodule update --init --recursive
+npm link
+cd integration/stylelint
+npm link postcss-selector-parser
+npm install
+NODE_VERSION=`node -e "console.log(process.version.replace(/v(\d).*/,function(m){return m[1]}))"`
+CI="tests $NODE_VERSION"
+npm run jest -- --maxWorkers=2 --testPathIgnorePatterns lib/__tests__/standalone-cache.test.js || exit $?

package.json

@@ -1,6 +1,6 @@
 {
   "name": "postcss-selector-parser",
-  "version": "4.0.0",
+  "version": "5.0.0-rc.0",
   "devDependencies": {
     "ava": "^0.24.0",
     "babel-cli": "^6.4.0",