Chore: add test for #558

Author: mysticatea

package.json

@@ -39,9 +39,10 @@
   "devDependencies": {
     "babel-eslint": "^8.0.0",
     "dedent": "^0.7.0",
-    "eslint": "^4.12.1",
+    "eslint": "^4.14.0",
     "eslint-config-babel": "^7.0.1",
     "eslint-plugin-flowtype": "^2.30.3",
+    "eslint-plugin-import": "^2.8.0",
     "eslint-plugin-prettier": "^2.1.2",
     "espree": "^3.4.0",
     "husky": "^0.14.0",

test/fixtures/eslint-plugin-import/.eslintrc.yml

@@ -0,0 +1,11 @@
+root: true
+
+# babel-eslint
+parser: ../../../lib/index.js
+
+# use eslint-plugin-import
+plugins:
+  - import
+rules:
+  import/no-named-as-default: error
+  no-unused-vars: error

test/fixtures/eslint-plugin-import/a.js

@@ -0,0 +1 @@
+export default function foo() { }

test/fixtures/eslint-plugin-import/b.js

@@ -0,0 +1 @@
+import foo from './a.js';

test/fixtures/eslint-plugin-import/c.js

@@ -0,0 +1,4 @@
+// @flow
+type Foo = {};
+
+const FlowTypeButton = ({ }: Foo) => { };

test/z_eslint-plugin-import.js

@@ -0,0 +1,14 @@
+"use strict";
+
+const eslint = require("eslint");
+
+describe("https://github.com/babel/babel-eslint/issues/558", () => {
+  it("don't crash with eslint-plugin-import", () => {
+    const engine = new eslint.CLIEngine({ ignore: false });
+    engine.executeOnFiles([
+      "test/fixtures/eslint-plugin-import/a.js",
+      "test/fixtures/eslint-plugin-import/b.js",
+      "test/fixtures/eslint-plugin-import/c.js",
+    ]);
+  });
+});