#onConsoleLog

• Type: (content: string, type: 'stdout' | 'stderr') => boolean | void
• Default: undefined

Custom handler for console log in tests, which is helpful for filtering out logs from third-party libraries.

The handler receives the log content along with its type ('stdout' or 'stderr'), so you can filter by stream as well as by text. If you return false, Rstest will not print the log to the console.

import { defineConfig } from '@rstest/core';

export default defineConfig({
  onConsoleLog: (content, type) => {
    if (type === 'stderr' && content.includes('deprecated')) {
      return false;
    }
  },
});

#Silencing console logs

You can silence console logs by returning false in the onConsoleLog handler.

import { defineConfig } from '@rstest/core';
export default defineConfig({
  onConsoleLog: () => false,
});