feat: add design system platform

tests/e2e/accessibility.spec.js

@@ -40,3 +40,19 @@ test("@a11y reduced-motion policy disables long animation", async ({ page }) =>
     .evaluate((body) => getComputedStyle(body).animationDuration);
   expect(["0s", "0.00001s", "1e-05s"]).toContain(duration);
 });
+
+test("@a11y opened design-system dialog has no blocking violations", async ({
+  page,
+}) => {
+  await page.goto("/examples/ui");
+  await page.getByRole("button", { name: "모달 열기" }).click();
+  const results = await new AxeBuilder({ page })
+    .include(".ui-dialog")
+    .withTags(["wcag2a", "wcag2aa", "wcag21a", "wcag21aa"])
+    .analyze();
+  expect(
+    results.violations.filter((violation) =>
+      ["critical", "serious"].includes(violation.impact ?? ""),
+    ),
+  ).toEqual([]);
+});

tests/e2e/app-shell.spec.js

@@ -53,8 +53,13 @@ test("provides an escape-dismissible mobile navigation", async ({ page }) => {
   await menu.click();
   await expect(menu).toHaveAttribute("aria-expanded", "true");
   await expect(page.getByRole("navigation", { name: "주요 탐색" })).toBeVisible();
+  await expect(page.locator(".ui-drawer")).toHaveJSProperty("open", true);
+  expect(
+    await page.locator(".ui-drawer").evaluate((drawer) => drawer.matches(":modal")),
+  ).toBe(true);
 
   await page.keyboard.press("Escape");
   await expect(menu).toHaveAttribute("aria-expanded", "false");
   await expect(page.getByRole("navigation", { name: "주요 탐색" })).toBeHidden();
+  await expect(menu).toBeFocused();
 });

tests/e2e/design-system-interactions.spec.js

@@ -0,0 +1,29 @@
+import { expect, test } from "@playwright/test";
+
+test("runs menu typeahead, tabs and duplicate toast interactions", async ({
+  page,
+}) => {
+  await page.goto("/examples/ui");
+
+  const menuTrigger = page.getByRole("button", { name: "작업 메뉴" });
+  await menuTrigger.focus();
+  await page.keyboard.press("ArrowDown");
+  await page.keyboard.type("toast");
+  const toastItem = page.getByRole("menuitem", { name: "Toast 표시" });
+  await expect(toastItem).toBeFocused();
+  await page.keyboard.press("Enter");
+  await expect(page.getByText("예제가 저장되었습니다.")).toBeVisible();
+  await expect(menuTrigger).toBeFocused();
+
+  const tokenTab = page.getByRole("tab", { name: "토큰" });
+  await tokenTab.focus();
+  await page.keyboard.press("ArrowRight");
+  const primitiveTab = page.getByRole("tab", { name: "프리미티브" });
+  await expect(primitiveTab).toBeFocused();
+  await expect(primitiveTab).toHaveAttribute("aria-selected", "false");
+  await page.keyboard.press("Enter");
+  await expect(primitiveTab).toHaveAttribute("aria-selected", "true");
+  await expect(
+    page.getByRole("tabpanel", { name: "프리미티브" }),
+  ).toContainText("native semantics");
+});