eslint-plugin-jest/lib/rules/no-jest-import.js

Eslint rules for Jest

'use strict';

const _require = require('./util'),
      getDocsUrl = _require.getDocsUrl;

module.exports = {
  meta: {
    docs: {
      url: getDocsUrl(__filename)
    },
    messages: {
      unexpectedImport: `Jest is automatically in scope. Do not import "jest", as Jest doesn't export anything.`
    }
  },

  create(context) {
    return {
      'ImportDeclaration[source.value="jest"]'(node) {
        context.report({
          node,
          messageId: 'unexpectedImport'
        });
      },

      'CallExpression[callee.name="require"][arguments.0.value="jest"]'(node) {
        context.report({
          loc: node.arguments[0].loc,
          messageId: 'unexpectedImport'
        });
      }

    };
  }

};