reorder tests

package.json

@@ -22,7 +22,7 @@
     "build": "npm-run-all clean transpile copy-typescript-definition copy-flow-definition && grunt build",
     "prepublish": "npm run build",
     "transpile": "rollup -c ./config/rollup.config.js && rollup -c ./config/rollup.umd.js",
-    "test": "npm-run-all --parallel test:ava test:typescript test:flow",
+    "test": "npm-run-all test:typescript test:flow test:ava",
     "test:ava": "BABEL_ENV=test ava ./test/test.js",
     "test:typescript": "tsc --noEmit ./test/test.ts",
     "test:flow": "touch .flowconfig && flow"