no-unassigned-import.js

import { test } from '../utils'
import * as path from 'path'

import { RuleTester } from 'eslint'

const ruleTester = new RuleTester()
    , rule = require('rules/no-unassigned-import')

const error = {
  ruleId: 'no-unassigned-import',
  message: 'Imported module should be assigned',
}

ruleTester.run('no-unassigned-import', rule, {
  valid: [
    test({ code: 'import _ from "lodash"'}),
    test({ code: 'import _, {foo} from "lodash"'}),
    test({ code: 'import _, {foo as bar} from "lodash"'}),
    test({ code: 'import {foo as bar} from "lodash"'}),
    test({ code: 'import * as _ from "lodash"'}),
    test({ code: 'import _ from "./"'}),
    test({ code: 'const _ = require("lodash")'}),
    test({ code: 'const {foo} = require("lodash")'}),
    test({ code: 'const {foo: bar} = require("lodash")'}),
    test({ code: 'const [a, b] = require("lodash")'}),
    test({ code: 'const _ = require("./")'}),
    test({ code: 'foo(require("lodash"))'}),
    test({ code: 'require("lodash").foo'}),
    test({ code: 'require("lodash").foo()'}),
    test({ code: 'require("lodash")()'}),
    test({
      code: 'import "app.css"',
      options: [{ 'allow': ['**/*.css'] }],
    }),
    test({
      code: 'import "app.css";',
      options: [{ 'allow': ['*.css'] }],
    }),
    test({
      code: 'import "./app.css"',
      options: [{ 'allow': ['**/*.css'] }],
    }),
    test({
      code: 'import "foo/bar"',
      options: [{ 'allow': ['foo/**'] }],
    }),
    test({
      code: 'import "foo/bar"',
      options: [{ 'allow': ['foo/bar'] }],
    }),
    test({
      code: 'import "../dir/app.css"',
      options: [{ 'allow': ['**/*.css'] }],
    }),
    test({
      code: 'import "../dir/app.js"',
      options: [{ 'allow': ['**/dir/**'] }],
    }),
    test({
      code: 'require("./app.css")',
      options: [{ 'allow': ['**/*.css'] }],
    }),
    test({
      code: 'import "babel-register"',
      options: [{ 'allow': ['babel-register'] }],
    }),
    test({
      code: 'import "./styles/app.css"',
      options: [{ 'allow': ['src/styles/**'] }],
      filename: path.join(process.cwd(), 'src/app.js'),
    }),
    test({
      code: 'import "../scripts/register.js"',
      options: [{ 'allow': ['src/styles/**', '**/scripts/*.js'] }],
      filename: path.join(process.cwd(), 'src/app.js'),
    }),
  ],
  invalid: [
    test({
      code: 'import "lodash"',
      errors: [error],
    }),
    test({
      code: 'require("lodash")',
      errors: [error],
    }),
    test({
      code: 'import "./app.css"',
      options: [{ 'allow': ['**/*.js'] }],
      errors: [error],
    }),
    test({
      code: 'import "./app.css"',
      options: [{ 'allow': ['**/dir/**'] }],
      errors: [error],
    }),
    test({
      code: 'require("./app.css")',
      options: [{ 'allow': ['**/*.js'] }],
      errors: [error],
    }),
    test({
      code: 'import "./styles/app.css"',
      options: [{ 'allow': ['styles/*.css'] }],
      filename: path.join(process.cwd(), 'src/app.js'),
      errors: [error],
    }),
  ],
})