Files
cypress/npm/react/examples/visual-testing-with-percy
Lachlan Miller 1f28650d68 chore: change integration->e2e throughout code base (#19345)
* hacky way to update snapshots

* new hack to update snapshots

* trying again

* hacky fix

* ci: snapshots

* ci: snapshots

* snapshots

* mas updates

* update spec API

* fix test

* fix test

* update

* update test

* fix test

* update plugin

* update spec

* webpack optinos

* Update launchpad tests

* fix screenshot paths

* updated snapshot

* change pattern

* guard

* fix smoke test

* patch code coverage

* update percy config

* fix specs

* try updating example project

* update snapshots

* remove old test

* remove snapshot hack

* add back appveyor

* remove old code

* update snapshot

* Fix tests

* wip

* revert snapshot

* reverted all snaps

* remove only

* remove commnet

* remove old code

* reverted file

* lint

* revert video compression spec

* update snapshot

* update spec path logic

* update snap

* updated snap

* snaps

* snaps

* fix spec

* rename ignoreTestFiles to ignoreSpecPattern

* update screenshot dir for runner-ct

* update deprecations

* update

* upate

* fix test

* update snaps

* update snap

* updating snap

* added missing snaps

* updated cypress run mode integration spec

* electron snapshot

* update default

* rename integration->e2e

* rename integration->e2e in packages

* spec.ts -> cy.ts

* spec.ts -> cy.ts

* _spec.js -> .cy.js

* .spec.js -> .cy.js

* .spec.js -> .cy.js

* update config

* update config

* update

* update spec ext

* update config

* update config

* ensure newly scaffold specs are cached

* fix launchpad spec

* types

* update test

* transpile based on spec pattern

* add back example

* remove unnecessary async and nodeVersion

* spec.tsx -> cy.tsx

* update stop-only config

* exclude CT from E2E

* removed old test

* update spec pattern in angular

* update spec pattern in design system

* update all specs npm npm/react

* update spec name

* update spec patterns

* remove old script

* update tests path

* update config

* fix test

* update snapshots

* update examples

* update ignore patterns

* update snapshots

* unit tests

* update tests

* patch code coverage

* revert spec name

* rename a lot of speces

* update

* update spec ext

* update spec

* update spec

* update spec ext

* update lint

* update rules

* update lint

* snaps

* update spec dir

* update paths

* remove unused pluginsfile config opt

* update smoke test

* update create cypress tests

* update gitignore

* update types

* update paths

* update spe

* update test

* update all snaps

* update tests

* update http request spec

* update spec file names

* snaps

* update snaps

* updated snaps

* update snaps

* spacing

* spacing

* spacing

* spacing

* fix perf spec

* update

* update

* revert

* update

* snaps

* snaps

* rename spec

* update snaps

* snapshots

* update tests

* update tests

* update

* fix

* update test projects

* update

* updating

* update run-ct test

* update spec pattern and add defensive check around platform

* fix system test script

* update snap

* snaps

* update test

* update spe

* update for FF

* ff

* remove unused feature flag

* added tests

* fix react example

* update test

* update config

* update test projects

* update snapshots

* correctly remove private prefix on darwin

* fix types

* rename integration -> e2e

* update config

* updatec onfig

* fixing app scaffold integration tests

* remove code

* exclude e2e specs from CT

* update snapshot

* integration->e2e

* update path for test file in ts project

* update schematic

* use updated branch for CI

* update config

* update config

* revert some changes

* remove built code

* revert changes

* update gitignore

* include test spec

* update scaffold script

* wip: renames

* script

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* wip

* mass rename

* rename

* rename

* fix angular

* update spec in create cypress tests

* remove old file

* fix tests

* access specPattern in a more idiomatic fashion

* do not duplicate variable

* pass correct params to findSpec in files controller

* add comment explaining spec finding

* remove reference to old file that no longer exist

* resolve conflicts

* fix types

* transpile cypress dir

* update circle ymlg

* update spec pattern for example project

* supportFile: false

* fix circle yml

* update test glob

* rename some specs to use correct .cy ext

* more ext renames

* rename spec

* update extensions

* update extensions

* update specs

Co-authored-by: estrada9166 <estrada9166@hotmail.com>
Co-authored-by: Emily Rohrbough <emilyrohrbough@users.noreply.github.com>
2022-01-11 16:29:55 +10:00
..

example: visual-testing This project is using Percy.io for visual regression testing.

Uses @percy/cypress to run visual tests for a demo of Material UI date pickers from https://material-ui.com/components/pickers/. Every pull request shows the visual diff (if any) and allows us to confirm that styles and layouts have not changed.

Usage

  1. Make sure the root project has been built .
# in the root of the project
npm install
npm run build
  1. Run npm install in this folder to symlink the @cypress/react dependency.
# in this folder
npm install
  1. Start Cypress
npm run cy:open
# or just run headless tests
npm test

Notes

The project was set up using Percy documentation (see support and plugins files). The example spec src/DatePicker.cy-spec.js runs cy.percySnapshot after confirming the DOM has updated.

mount(<MaterialUIPickers />)
// confirm the DOM has rendered the widget
cy.get('#date-picker-inline').should('have.value', '08/18/2014')
// then take visual snapshot
cy.percySnapshot('Datepicker initial')

cy.get('button[aria-label="change date"]').click()
// confirm the DOM has rendered the widget
cy.get('.MuiPickersBasePicker-container').should('be.visible')
// then take visual snapshot
cy.percySnapshot('Datepicker opened')

New screenshot

Percy dashboard

Visual change

If a pull request introduces visual changes, they are caught and shown as a diff

Visual change

Tip: you can use any visual testing plugin with component testing.