openpencil/tests/e2e/snap/guides.spec.ts
2026-05-15 12:49:49 +03:00

92 lines
3 KiB
TypeScript

import { test, expect, type Page } from '@playwright/test'
import { CanvasHelper } from '#tests/helpers/canvas'
let page: Page
let canvas: CanvasHelper
test.describe.configure({ mode: 'serial' })
test.beforeAll(async ({ browser }) => {
page = await browser.newPage()
await page.goto('/')
canvas = new CanvasHelper(page)
await canvas.waitForInit()
await canvas.clearCanvas()
})
test.afterAll(async () => {
await page.close()
})
async function createRects() {
await canvas.clearCanvas()
await page.evaluate(() => {
const store = window.openPencil?.getStore?.()
if (!store) throw new Error('OpenPencil store not initialized')
store.createShape('RECTANGLE', 100, 100, 80, 80)
const b = store.createShape('RECTANGLE', 300, 100, 80, 80)
store.select([b])
})
await canvas.waitForRender()
}
// Snap guide visual tests compare the canvas at a snap position vs a non-snap position
// during the same drag. The snap position produces a guide line overlay; non-snap does not.
// Skipped on Linux CI due to X11 Alt+drag interference and rendering differences.
test('edge snap guide: canvas differs at snap vs non-snap position', async () => {
test.skip(process.platform === 'linux', 'Snap guide visual tests skipped on Linux CI')
await createRects()
const box = await page.getByTestId('canvas-element').boundingBox()
if (!box) throw new Error('No canvas')
// drag to a non-snap position first, capture screenshot
await page.mouse.move(box.x + 340, box.y + 140)
await page.mouse.down()
await page.mouse.move(box.x + 250, box.y + 140, { steps: 15 })
const nonSnapShot = await canvas.screenshotCanvas()
// continue drag to edge-snap position (right edge of rect B aligns with left edge of rect A at x=180)
await page.mouse.move(box.x + 182, box.y + 140, { steps: 15 })
const snapShot = await canvas.screenshotCanvas()
await page.mouse.up()
// At snap position the guide line overlay should make the canvas visually different
expect(
Buffer.compare(nonSnapShot, snapShot),
'Canvas should differ at snap position due to guide line overlay'
).not.toBe(0)
canvas.assertNoErrors()
})
test('center snap guide: canvas differs at snap vs non-snap position', async () => {
test.skip(process.platform === 'linux', 'Snap guide visual tests skipped on Linux CI')
await createRects()
const box = await page.getByTestId('canvas-element').boundingBox()
if (!box) throw new Error('No canvas')
// drag to a non-snap position first
await page.mouse.move(box.x + 340, box.y + 140)
await page.mouse.down()
await page.mouse.move(box.x + 260, box.y + 140, { steps: 15 })
const nonSnapShot = await canvas.screenshotCanvas()
// continue drag to center-snap position (center of rect B aligns with center of rect A)
await page.mouse.move(box.x + 220, box.y + 140, { steps: 15 })
const snapShot = await canvas.screenshotCanvas()
await page.mouse.up()
expect(
Buffer.compare(nonSnapShot, snapShot),
'Canvas should differ at snap position due to center guide line overlay'
).not.toBe(0)
canvas.assertNoErrors()
})