示例
Shop with Playwright
The shop's purchase test written for Playwright Test, with danwo's emulators, invariant and fault matrix.
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The shop's purchase test written for Playwright Test, with danwo's emulators, invariant and fault matrix. See it on GitHub.
What it shows
- An existing Playwright test given danwo's emulators and flight record
- The invariant declared with
test.invariant danwo-playwright matrixrunning the fault matrix over a Playwright test
Stack
Playwright TestNode.jsEmulates: Stripe. Runs on: Playwright Test in Chromium.
Run it
From examples/shop-playwright, after bun install at the repository's root:
bun run test:e2e # playwright test
bun run matrix # danwo-playwright matrix tests/buy-credits.spec.tsPlaywright Test explains what this example leans on.
The test
import { expect, testWith } from "@danwo/playwright"
import type { StripeFixtures } from "@danwo/sdk"
import { grantedCredits, paidCredits } from "../../shop/src/ledger.ts"
const test = testWith<StripeFixtures>()
// Whichever way the purchase went, the shop grants exactly the credits Stripe was paid for.
test.invariant(async ({ danwo, baseURL }) => {
expect(await grantedCredits(baseURL ?? "", "u1")).toBe(await paidCredits(danwo.stripe, "u1"))
})
test("buys 500 credits through Stripe Checkout", async ({ page, danwo }) => {
await page.goto("/")
await page.getByRole("button", { name: "Buy 500 credits" }).click()
await expect(page.getByTestId("checkout-total")).toContainText("$5.00")
await page.getByTestId("checkout-pay").click()
await expect(page.getByRole("heading", { name: "Thank you for your purchase" })).toBeVisible()
// Credits arrive by webhook; play the deliveries on the emulator's clock.
await danwo.settle()
await expect(page.getByText(/^Credits: /)).toHaveText("Credits: 500")
})