Function assertSpyCallArg

testing/mock.ts:1459–1474

(
  spy: SpyLike<Self, Args, Return>,
  callIndex: number,
  argIndex: number,
  expected: ExpectedArg,
)

 * @returns The actual argument.
 */
export function assertSpyCallArg<
  Self,
  Args extends unknown[],
  Return,
  ExpectedArg,
>(
  spy: SpyLike<Self, Args, Return>,
  callIndex: number,
  argIndex: number,
  expected: ExpectedArg,
): ExpectedArg {
  const call = getSpyCall(spy, callIndex);
  const arg = call?.args[argIndex];
  assertEquals(arg, expected);
  return arg as ExpectedArg;
}

/**
 * Asserts that an spy is called with a specific range of args as expected.