add back toast tests

src/Toast.test.tsx

@@ -16,6 +16,7 @@ limitations under the License.
 
 import { describe, expect, test, vi } from "vitest";
 import { render, configure } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
 
 import { Toast } from "../src/Toast";
 import { withFakeTimers } from "./utils/test";
@@ -24,6 +25,9 @@ configure({
   defaultHidden: true,
 });
 
+// Test Explanation:
+// This test the toast. We need to use { document: window.document } because the toast listens
+// for user input on `window`.
 describe("Toast", () => {
   test("renders", () => {
     const { queryByRole } = render(
@@ -40,6 +44,33 @@ describe("Toast", () => {
     expect(getByRole("dialog")).toMatchSnapshot();
   });
 
+  test("dismisses when Esc is pressed", async () => {
+    const user = userEvent.setup({ document: window.document });
+    const onDismiss = vi.fn();
+    const { debug } = render(
+      <Toast open={true} onDismiss={onDismiss}>
+        Hello world!
+      </Toast>,
+    );
+    debug();
+    await user.keyboard("[Escape]");
+    expect(onDismiss).toHaveBeenCalled();
+  });
+
+  test("dismisses when background is clicked", async () => {
+    const user = userEvent.setup();
+    const onDismiss = vi.fn();
+    const { getByRole, unmount } = render(
+      <Toast open={true} onDismiss={onDismiss}>
+        Hello world!
+      </Toast>,
+    );
+    const background = getByRole("dialog").previousSibling! as Element;
+    await user.click(background);
+    expect(onDismiss).toHaveBeenCalled();
+    unmount();
+  });
+
   test("dismisses itself after the specified timeout", () => {
     withFakeTimers(() => {
       const onDismiss = vi.fn();