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feat: next example (#254)
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‎.eslintrc.js‎

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@@ -18,7 +18,7 @@ module.exports = {
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parser: "@typescript-eslint/parser",
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parserOptions: {
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sourceType: "module",
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project: ["./packages/cypress-plugin-visual-regression-diff/tsconfig.json", "./examples/webpack/tsconfig.json"],
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project: ["./packages/cypress-plugin-visual-regression-diff/tsconfig.json", "./examples/next/tsconfig.json", "./examples/webpack/tsconfig.json"],
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tsconfigRootDir: __dirname,
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warnOnUnsupportedTypeScriptVersion: false,
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EXPERIMENTAL_useSourceOfProjectReferenceRedirect: true,

‎.github/workflows/ci.yml‎

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cache:
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name: CI cache
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runs-on: ubuntu-latest
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outputs:
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pnpm-cache: ${{ steps.vars.outputs.pnpm-cache }}
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key: ${{ steps.vars.outputs.key }}
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steps:
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- uses: actions/checkout@v3
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- uses: pnpm/action-setup@v2.2.4
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- uses: actions/setup-node@v3
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with:
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node-version: "18.x"
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cache: 'pnpm'
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- run: pnpm install
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- id: vars
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run: |
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echo "pnpm-cache=$(pnpm store path --silent)" >> $GITHUB_OUTPUT
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echo "key=${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}" >> $GITHUB_OUTPUT
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- name: Cache NPM and Cypress 📦
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uses: actions/cache@v3
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id: cache
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with:
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path: |
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${{ steps.vars.outputs.pnpm-cache }}
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~/.cache/Cypress
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key: ${{ steps.vars.outputs.key }}
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restore-keys: |
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${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}
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${{ runner.os }}-pnpm-
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- run: pnpm install --frozen-lockfile --prefer-offline
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env:
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HUSKY: '0' # By default do not run HUSKY install
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lint:
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name: lint
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- uses: actions/setup-node@v3
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with:
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node-version: "18.x"
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cache: 'pnpm'
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- run: pnpm install
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- name: Cache NPM and Cypress 📦
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uses: actions/cache@v3
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id: cache
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with:
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path: |
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${{ needs.cache.outputs.pnpm-cache }}
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~/.cache/Cypress
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key: ${{ needs.cache.outputs.key }}
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restore-keys: |
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${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}
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${{ runner.os }}-pnpm-
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- run: pnpm install --frozen-lockfile --prefer-offline
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env:
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HUSKY: '0' # By default do not run HUSKY install
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- run: pnpm lint:ci
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- run: pnpm format:ci
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- uses: actions/setup-node@v3
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with:
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node-version: "18.x"
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cache: 'pnpm'
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- run: pnpm install && cd ./examples/webpack && pnpm cypress install
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- name: Cache NPM and Cypress 📦
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uses: actions/cache@v3
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id: cache
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with:
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path: |
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${{ needs.cache.outputs.pnpm-cache }}
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~/.cache/Cypress
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key: ${{ needs.cache.outputs.key }}
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restore-keys: |
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${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}
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${{ runner.os }}-pnpm-
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- run: pnpm install --frozen-lockfile --prefer-offline
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env:
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HUSKY: '0' # By default do not run HUSKY install
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- run: pnpm --filter cypress-plugin-visual-regression-diff -r build
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- name: Test e2e
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run: pnpm test:e2e:ci
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- name: Test component-testing
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run: pnpm test:ct:ci
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- uses: actions/upload-artifact@v3
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with:
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name: test
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path: |
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examples/next/**/*.png
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examples/next/**/*.jpg
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examples/next/**/*.jpeg
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test-integration-coverage:
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name: test-integration-coverage
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- uses: actions/setup-node@v3
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with:
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node-version: "18.x"
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cache: 'pnpm'
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- run: pnpm install
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- name: Cache NPM and Cypress 📦
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uses: actions/cache@v3
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id: cache
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with:
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path: |
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${{ needs.cache.outputs.pnpm-cache }}
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~/.cache/Cypress
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key: ${{ needs.cache.outputs.key }}
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restore-keys: |
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${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}
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${{ runner.os }}-pnpm-
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- run: pnpm install --frozen-lockfile --prefer-offline
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env:
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HUSKY: '0' # By default do not run HUSKY install
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- name: Test integration (with coverage) and upload to CodeClimate
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if: ${{ github.ref == 'refs/heads/main' }}
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uses: paambaati/codeclimate-action@v4.0.0
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build-and-release:
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name: build and release
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runs-on: ubuntu-latest
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needs: prepare-release
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needs: [cache, prepare-release]
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if: needs.prepare-release.outputs.releases_created
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steps:
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- uses: actions/checkout@v3
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- uses: pnpm/action-setup@v2.2.4
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- uses: actions/setup-node@v3
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with:
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node-version: "18.x"
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cache: 'pnpm'
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registry-url: 'https://registry.npmjs.org'
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NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
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- run: pnpm install
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- name: Cache NPM and Cypress 📦
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uses: actions/cache@v3
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id: cache
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with:
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path: |
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${{ needs.cache.outputs.pnpm-cache }}
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~/.cache/Cypress
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key: ${{ needs.cache.outputs.key }}
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restore-keys: |
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${{ runner.os }}-pnpm-${{ hashFiles('pnpm-lock.yaml') }}
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${{ runner.os }}-pnpm-
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- run: pnpm install --frozen-lockfile --prefer-offline
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env:
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HUSKY: '0' # By default do not run HUSKY install
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- name: Build packages to get cross-references working 🔧
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run: pnpm build
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- name: Release package

‎CONTRIBUTING.md‎

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```bash
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pnpm i # installs the project dependencies
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cd examples/webpack && pnpm i # install dependencies for example project (useful for testing)
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```
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### Committing Changes

‎examples/next/.gitignore‎

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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
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# dependencies
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/node_modules
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/.pnp
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.pnp.js
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# testing
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/coverage
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# we do not want to commit local screenshot files
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# as they might be different on different OSes
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**/__image_snapshots_local__
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# next.js
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/.next/
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/out/
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# production
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/build
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# misc
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.DS_Store
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*.pem
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# debug
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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# local env files
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.env*.local
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# vercel
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.vercel
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# typescript
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*.tsbuildinfo
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next-env.d.ts
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# cypress
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/cypress/screenshots
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/cypress/videos

‎examples/next/README.md‎

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# Next.js + Cypress + @frsource/cypress-plugin-visual-regression-diff
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This example shows how to configure @frsource/cypress-plugin-visual-regression-diff to work with Cypress & Next.js.
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## Project setup
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```bash
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pnpm install
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```
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### Run end-to-end tests
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> Important - remember to run `pnpm && pnpm build` command in this repo's root directory before starting e2e tests.
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```bash
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pnpm e2e
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```
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### Run component tests
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> Important - remember to run `pnpm && pnpm build` command in this repo's root directory before starting e2e tests.
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```bash
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pnpm component
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```
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### Compiles and hot-reloads for development
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```bash
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pnpm dev
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```
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### Compiles and minifies for production
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```bash
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pnpm build
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```
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## Credits
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Created using [Next.js Cypress template](https://nextjs.org/docs/pages/building-your-application/optimizing/testing#cypress).

‎examples/next/components/about-component.cy.tsx‎

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import AboutComponent from './about-component'
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// Disable ESLint to prevent failing linting inside the Next.js repo.
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// If you're using ESLint on your project, we recommend installing the ESLint Cypress plugin instead:
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// https://github.com/cypress-io/eslint-plugin-cypress
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describe('<AboutComponent />', () => {
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it('should render and display expected content', () => {
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cy.mount(<AboutComponent />).then(() => {
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cy.matchImage()
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cy.get('h1').matchImage()
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})
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})
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})
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// Prevent TypeScript from reading file as legacy script
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export {}

‎examples/next/components/about-component.tsx‎

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import Link from 'next/link'
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import React from 'react'
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import styles from '../styles/Home.module.css'
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export default function AboutComponent() {
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return (
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<>
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<h1>About Page</h1>
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<p className={styles.description}>
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<Link href="/">&larr; Go Back</Link>
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</p>
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</>
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)
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}

‎examples/next/cypress.config.ts‎

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import { defineConfig } from "cypress";
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import { initPlugin } from "@frsource/cypress-plugin-visual-regression-diff/plugins";
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export default defineConfig({
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e2e: {
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setupNodeEvents(on, config) {
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initPlugin(on, config);
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},
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baseUrl: "http://localhost:3000",
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},
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component: {
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setupNodeEvents(on, config) {
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initPlugin(on, config);
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},
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devServer: {
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framework: "next",
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bundler: "webpack",
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},
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},
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});

‎examples/next/cypress/e2e/app.cy.ts‎

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describe("Navigation", () => {
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it("should navigate to the about page", () => {
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cy.visit("http://localhost:3000/");
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cy.get('a[href*="about"]').click();
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cy.url().should("include", "/about");
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cy.matchImage().then(({ imgNewPath }) => {
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// match against image from custom path
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cy.matchImage({ matchAgainstPath: imgNewPath });
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});
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});
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});
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export {};

‎examples/next/cypress/fixtures/example.json‎

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{
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"name": "Using fixtures to represent data",
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"email": "hello@cypress.io",
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"body": "Fixtures are a great way to mock data for responses to routes"
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}

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