Function assert

packages/runner/src/suite.ts:192–202

(condition: any, message: string)

let currentTestFilepath: string

function assert(condition: any, message: string) {
  if (!condition) {
    throw new Error(
      `Vitest failed to find ${message}. One of the following is possible:`
      + '\n- "vitest" is imported directly without running "vitest" command'
      + '\n- "vitest" is imported inside "globalSetup" (to fix this, use "setupFiles" instead, because "globalSetup" runs in a different context)'
      + '\n- "vitest" is imported inside Vite / Vitest config file'
      + '\n- Otherwise, it might be a Vitest bug. Please report it to https://github.com/vitest-dev/vitest/issues\n',
    )
  }
}

export function getDefaultSuite(): SuiteCollector<object> {
  assert(defaultSuite, 'the default suite')