add eslint-jest-plugin (#48)

* add eslint-jest-plugin

* also add envs

packages/neutrino-preset-jest/package.json

@@ -19,6 +19,7 @@
     "babel-plugin-transform-es2015-modules-commonjs": "^6.22.0",
     "babel-preset-jest": "^18.0.0",
     "deepmerge": "^1.3.2",
+    "eslint-plugin-jest": "^19.0.1",
     "jest-cli": "^18.1.0"
   },
   "homepage": "https://neutrino.js.org",

packages/neutrino-preset-jest/src/index.js

@@ -65,6 +65,17 @@ module.exports = neutrino => {
       };
     });
 
+  if (neutrino.config.rules.has('lint')) {
+    neutrino.config.module
+      .rule('lint')
+      .loader('eslint', props => merge(props, {
+        options: {
+          plugins: ['jest'],
+          envs: ['jest']
+        }
+      }));
+  }
+
   neutrino.on('test', args => {
     const jest = normalizeJestConfig(neutrino, args);
     const configFile = path.join(os.tmpdir(), 'config.json');

packages/neutrino-preset-jest/yarn.lock

@@ -521,6 +521,10 @@ escodegen@^1.6.1:
   optionalDependencies:
     source-map "~0.2.0"
 
+eslint-plugin-jest@^19.0.1:
+  version "19.0.1"
+  resolved "http://registry.npm.taobao.org/eslint-plugin-jest/download/eslint-plugin-jest-19.0.1.tgz#42a420e90e81aa74e162c16166e43a31b890eece"
+
 esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"