eslint-plugin-jest/lib/rules/prefer-strict-equal.js

Eslint rules for Jest

'use strict';

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

module.exports = {
  meta: {
    docs: {
      url: getDocsUrl(__filename)
    },
    messages: {
      useToStrictEqual: 'Use toStrictEqual() instead'
    },
    fixable: 'code'
  },

  create(context) {
    return {
      CallExpression(node) {
        if (!expectCase(node)) {
          return;
        }

        const propertyName = method(node) && method(node).name;

        if (propertyName === 'toEqual') {
          context.report({
            fix(fixer) {
              return [fixer.replaceText(method(node), 'toStrictEqual')];
            },

            messageId: 'useToStrictEqual',
            node: method(node)
          });
        }
      }

    };
  }

};