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cypress-api-mock

v5.6.0

Published

Cypress plugin for mocking API

Downloads

15

Readme

cypress-api-mock

Cypress plugin with commands for mocking API. It runs its own http server locally and returns registered responses. Http server can be started separately on remote machine if needed.

Adding to project

Add following lines to your commands.ts:

/// <reference types=cypress-api-mock" />

import "cypress-api-mock/commands";

Add following lines to your plugins/index.ts:

import apiMock from "cypress-api-mock/plugin";

function register(on: Cypress.PluginEvents, config: Cypress.ConfigOptions): void {
    /* your other registrations */
    apiMock(on, config);
}

export = register;

It will start server in the default address http://localhost:3000,

Usage

Prepare environment

It is highly recommended to reset the plugin before every suite to remove all previously registered mocks and logged requests.

beforeEach(() => cy.apiMockReset());

You can also reset the log of requests and responses during the test suite. Requests, responses and mocks are deleted once 5 minutes timeout after the mocks is written expires. If new mock is written, timeout is reset.

cy.apiMockResetCalls();

Mock specific API

cy.apiMock("/test-api", '{"id":${body.id},"message":"Hello ${body.name}!"}');

Assertion

cy.apiMockRequests().should((requests) => expect(requests[testApiUrl][0].data).to.eq(testApiRequestBody));
cy.apiMockResponses().should((requests) => expect(requests[testApiUrl][0]).to.eq(testApiExpectedResponse));

How to Develope

To build plugin run webpack with specific config:

For running server locally when cypress is started

npx webpack --config webpack.config.plugin.ts -w

For running server remotely

npx webpack --config webpack.config.server.ts -w

and then run cypress:

npx cypress open