feat: replace WTR with Storybook interaction tests via Vitest addon#10
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cristinecula merged 2 commits intomainfrom Feb 4, 2026
Merged
feat: replace WTR with Storybook interaction tests via Vitest addon#10cristinecula merged 2 commits intomainfrom
cristinecula merged 2 commits intomainfrom
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Replace @web/test-runner with Vitest + @storybook/addon-vitest + Playwright browser mode for running interaction tests co-located with stories using play functions. Changes: - Add vitest.config.ts with storybookTest plugin and Playwright - Add .storybook/preview.js with shadow-dom-testing-library setup and autodocs source transform for clean code display - Add .storybook/vitest.setup.ts for project annotations - Add @storybook/addon-vitest to .storybook/main.js - Add play functions with step() to all 3 stories testing: default greeting, custom greeting, empty greeting, and click-to-increment counter behavior - Remove test/component.test.ts and web-test-runner.config.mjs - Remove @open-wc/testing, @types/mocha, @web/test-runner-playwright devDependencies - Add vitest, @vitest/browser, @vitest/browser-playwright, @playwright/test, @storybook/addon-vitest, shadow-dom-testing-library devDependencies
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## [1.3.0](v1.2.1...v1.3.0) (2026-02-04) ### Features * replace WTR with Storybook interaction tests via Vitest addon ([#10](#10)) ([3af42cc](3af42cc))
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🎉 This PR is included in version 1.3.0 🎉 The release is available on: Your semantic-release bot 📦🚀 |
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Summary
@web/test-runnerwith Vitest +@storybook/addon-vitest+ Playwright browser mode for running interaction tests co-located with storiesshadow-dom-testing-libraryfor idiomatic shadow DOM queries (findByShadowText,getByShadowRole, etc.)step()function to group interactions in the Storybook Interactions panelChanges
New files
vitest.config.ts— Vitest config withstorybookTestplugin, Playwright chromium browser provider.storybook/preview.js—shadow-dom-testing-librarysetup viabeforeEach+ autodocs sourcetransformfor clean code display.storybook/vitest.setup.ts—setProjectAnnotationsfor VitestModified files
.storybook/main.js— Added@storybook/addon-vitestaddonstories/component.stories.ts— Added play functions withstep()to all 3 stories (default greeting, custom greeting, empty greeting, click-to-increment)package.json— Updated test scripts to use Vitest, added new devDependencies, removed WTR depsRemoved files
test/component.test.ts— Replaced by story play functionsweb-test-runner.config.mjs— No longer neededTest commands
Pattern reference
This follows the same testing infrastructure established in cosmoz-command-menu PR #6.