Update test script, hopefully fixing tests on Travis.

This patch introduces a serial way of running AVA whilst concurrency
issues are being ironed out. It also adds the 'test-fast' command
which is preferable on the local machine as it is maximally
concurrent.

Fixes #44.

Author: ben-eb

batchTests.js

@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+
+var glob = require('glob');
+var spawn = require('child_process').spawn;
+var files = require('minimist')(process.argv.slice(2))._[0];
+
+function spawnAva (file) {
+    return new Promise(function (resolve, reject) {
+        var ps = spawn(process.execPath, ['node_modules/.bin/ava', file]);
+
+        ps.stdout.pipe(process.stdout);
+        ps.stderr.pipe(process.stderr);
+
+        ps.on('close', function (code) {
+            if (code === 0) {
+                return resolve(code);
+            }
+            return reject(code);
+        });
+    });
+}
+
+glob(files, function (err, tests) {
+    if (err) {
+        throw err;
+    }
+    return tests.reduce(function (promise, file) {
+        return promise.then(function () { return spawnAva(file); });
+    }, Promise.resolve());
+});

package.json

@@ -2,7 +2,7 @@
   "name": "postcss-selector-parser",
   "version": "1.3.3",
   "devDependencies": {
-    "ava": "git+https://[email protected]/sindresorhus/ava.git#sigabrt",
+    "ava": "^0.13.0",
     "babel-cli": "^6.4.0",
     "babel-core": "^6.4.0",
     "babel-plugin-add-module-exports": "^0.1.2",
@@ -14,6 +14,8 @@
     "del-cli": "^0.2.0",
     "eslint": "^2.1.0",
     "eslint-config-cssnano": "^2.0.0",
+    "glob": "^7.0.3",
+    "minimist": "^1.2.0",
     "nyc": "^6.0.0"
   },
   "main": "dist/index.js",
@@ -27,7 +29,8 @@
     "pretest": "eslint src",
     "prepublish": "del-cli dist && BABEL_ENV=publish babel src --out-dir dist --ignore /__tests__/",
     "report": "nyc report --reporter=html",
-    "test": "nyc ava --verbose src/__tests__/*.js"
+    "test": "nyc node batchTests.js 'src/__tests__/*.js'",
+    "test-fast": "nyc ava src/__tests__/*.js"
   },
   "dependencies": {
     "flatten": "^1.0.2",