no-empty-title.ts

import { createRule, isDescribe, isStringNode, isTestCase } from './utils';

export default createRule({
  name: __filename,
  meta: {
    docs: {
      category: 'Best Practices',
      description: 'Disallow empty titles',
      recommended: false,
    },
    messages: {
      describe: 'describe should not have an empty title',
      test: 'test should not have an empty title',
    },
    type: 'suggestion',
    schema: [],
  },
  defaultOptions: [],
  create(context) {
    return {
      CallExpression(node) {
        if (!isDescribe(node) && !isTestCase(node)) {
          return;
        }
        const [firstArgument] = node.arguments;
        if (!firstArgument || !isStringNode(firstArgument, '')) {
          return;
        }

        context.report({
          messageId: isDescribe(node) ? 'describe' : 'test',
          node,
        });
      },
    };
  },
});