90 lines
3.8 KiB
TypeScript
90 lines
3.8 KiB
TypeScript
/// <reference types="node" />
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import { expect, test, type Page } from "@playwright/test";
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import { readFile } from "node:fs/promises";
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async function setEditor(page: Page, testId: string, value: string) {
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await page.getByTestId(testId).locator(".cm-content").fill(value);
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}
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test("real ECMAScript and PCRE2 workers compare exact snapshots and generate reviewed C", async ({
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page,
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}) => {
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const pageErrors: string[] = [];
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page.on("pageerror", (error) => pageErrors.push(error.message));
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await page.goto("./");
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await page.getByLabel("Live").uncheck();
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await setEditor(
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page,
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"editor-regular-expression-pattern",
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"(?<word>[A-Za-z]+)",
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);
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await setEditor(page, "editor-test-text", "alpha beta");
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await expect(
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page.getByRole("button", { name: "Run", exact: true }),
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).toBeEnabled({ timeout: 15_000 });
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await page
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.getByRole("button", { name: "Compare & code", exact: true })
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.click();
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const dialog = page.getByRole("dialog", { name: "Compare & generate" });
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await expect(dialog).toBeVisible();
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await expect(dialog).toBeInViewport();
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await dialog.getByRole("button", { name: "Run comparison" }).click();
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const verdict = dialog.locator(".comparison-verdict");
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await expect(
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verdict.getByRole("heading", { name: "same for current input" }),
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).toBeVisible({ timeout: 20_000 });
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await expect(verdict).toContainText("not a proof");
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const sideCards = dialog.locator(".comparison-side-card");
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await expect(sideCards).toHaveCount(2);
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await expect(sideCards.nth(0)).toContainText("Native ECMAScript RegExp");
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await expect(sideCards.nth(0)).toContainText("native utf16");
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await expect(sideCards.nth(1)).toContainText("PCRE2 WebAssembly");
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await expect(sideCards.nth(1)).toContainText("10.47 2025-10-21");
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await expect(sideCards.nth(1)).toContainText("native utf8-byte");
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await expect(
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dialog.locator(".comparison-alignments table tbody tr"),
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).toHaveCount(2);
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await dialog.getByLabel("Shared comparison pattern").fill("(?>a+)");
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await dialog.getByLabel("Comparison subject").fill("aaa");
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await dialog.getByRole("button", { name: "Run comparison" }).click();
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await expect(
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verdict.getByRole("heading", { name: "not comparable" }),
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).toBeVisible({ timeout: 20_000 });
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await expect(dialog).toContainText("flavour specific syntax");
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await expect(dialog).toContainText(
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"no runtime equivalence claim is possible",
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);
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await dialog.getByLabel("Pattern model").selectOption("variants");
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await dialog.getByLabel("PCRE2 pattern variant").fill("(?<word>[a-z]++)");
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await dialog.getByLabel("Comparison subject").fill("alpha beta");
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await dialog.getByRole("tab", { name: "PCRE2 C code" }).click();
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await dialog.getByRole("button", { name: "Generate reviewed C17" }).click();
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await expect(dialog).toContainText("PCRE2 10.47 8-bit · all-matches");
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await expect(dialog).toContainText("Exact UTF-8 byte arrays");
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const source = dialog.locator(".generated-code-result pre");
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await expect(source).toContainText(
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"This generated program requires PCRE2 10.47 exactly.",
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);
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await expect(source).toContainText("0x2b, 0x2b");
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await expect(source).not.toContainText("(?<word>[a-z]++)");
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const downloadPromise = page.waitForEvent("download");
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await dialog.getByRole("button", { name: "Download .c" }).click();
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const download = await downloadPromise;
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expect(download.suggestedFilename()).toBe("regex-tools-pcre2-match.c");
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const downloadPath = await download.path();
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if (!downloadPath) throw new Error("Generated C download is unavailable.");
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const downloadedSource = await readFile(downloadPath, "utf8");
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expect(downloadedSource).toContain(
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'#error "This generated program requires PCRE2 10.47 exactly."',
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);
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expect(downloadedSource).toContain("pcre2_set_match_limit");
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expect(downloadedSource).not.toContain("(?<word>[a-z]++)");
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expect(pageErrors).toEqual([]);
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});
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