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test/integration/caret_browsing_spec.mjs

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+/* Copyright 2021 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { closePages, getRect, loadAndWait } from "./test_utils.mjs";
+
+const waitForSelectionChange = (page, selection) =>
+  page.waitForFunction(
+    // We need to replace EOL on Windows to make the test pass.
+    sel => document.getSelection().toString().replaceAll("\r\n", "\n") === sel,
+    {},
+    selection
+  );
+
+describe("Caret browsing", () => {
+  describe("Selection", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("tracemonkey.pdf", ".textLayer .endOfContent");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must move the caret down and check the selection", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          const spanRect = await getRect(
+            page,
+            `.page[data-page-number="1"] > .textLayer > span`
+          );
+          await page.mouse.click(
+            spanRect.x + 1,
+            spanRect.y + spanRect.height / 2,
+            { count: 2 }
+          );
+          await page.keyboard.down("Shift");
+          for (let i = 0; i < 6; i++) {
+            await page.keyboard.press("ArrowRight");
+          }
+          await page.keyboard.up("Shift");
+          await waitForSelectionChange(page, "Trace-based");
+
+          await page.keyboard.down("Shift");
+          await page.keyboard.press("ArrowDown");
+          await page.keyboard.up("Shift");
+
+          // The caret is just before Languages.
+          await waitForSelectionChange(
+            page,
+            "Trace-based Just-in-Time Type Specialization for Dynamic\n"
+          );
+
+          await page.keyboard.down("Shift");
+          await page.keyboard.press("ArrowDown");
+          await page.keyboard.up("Shift");
+
+          // The caret is just before Mike Shaver.
+          await waitForSelectionChange(
+            page,
+            "Trace-based Just-in-Time Type Specialization for Dynamic\nLanguages\nAndreas Gal∗+, Brendan Eich∗, "
+          );
+
+          await page.keyboard.down("Shift");
+          await page.keyboard.press("ArrowUp");
+          await page.keyboard.up("Shift");
+
+          // The caret is just before Languages.
+          await waitForSelectionChange(
+            page,
+            "Trace-based Just-in-Time Type Specialization for Dynamic\n"
+          );
+
+          await page.keyboard.down("Shift");
+          await page.keyboard.press("ArrowUp");
+          await page.keyboard.up("Shift");
+
+          // The caret is in the middle of Time.
+          await waitForSelectionChange(page, "Trace-based Just-in-Tim");
+        })
+      );
+    });
+  });
+});