assert.CallTracker.prototype.calls - assert - Node

method assert.CallTracker.prototype.calls

Usage in Deno

import assert from "node:assert";



CallTracker.prototype.calls(exact?: number): () => void

The wrapper function is expected to be called exactly exact times. If the function has not been called exactly exact times when tracker.verify() is called, then tracker.verify() will throw an error.

import assert from 'node:assert';

// Creates call tracker.
const tracker = new assert.CallTracker();

function func() {}

// Returns a function that wraps func() that must be called exact times
// before tracker.verify().
const callsfunc = tracker.calls(func);

Parameters

optional



exact: number = 1

Return Type

() => void

A function that wraps fn.



CallTracker.prototype.calls<Func extends (...args: any[]) => any>(fn?: Func,
exact?: number,
): Func

Type Parameters



Func extends (...args: any[]) => any

Parameters

optional



fn: Func

optional



exact: number

Return Type

Func