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test/integration/signature_editor_spec.mjs

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+/* Copyright 2025 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 {
+  awaitPromise,
+  closePages,
+  copy,
+  FSI,
+  getEditorSelector,
+  getRect,
+  loadAndWait,
+  paste,
+  PDI,
+  switchToEditor,
+  waitForPointerUp,
+  waitForTimeout,
+} from "./test_utils.mjs";
+import fs from "fs";
+import path from "path";
+import { PNG } from "pngjs";
+
+const __dirname = import.meta.dirname;
+
+const switchToSignature = switchToEditor.bind(null, "Signature");
+
+describe("Signature Editor", () => {
+  const descriptionInputSelector = "#addSignatureDescription > input";
+  const addButtonSelector = "#addSignatureAddButton";
+
+  describe("Basic operations", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the editor has been removed when the dialog is cancelled", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+
+          // An invisible editor is created but invisible.
+          const editorSelector = getEditorSelector(0);
+          await page.waitForSelector(editorSelector, { visible: false });
+
+          await page.click("#addSignatureCancelButton");
+
+          // The editor should have been removed.
+          await page.waitForSelector(`:not(${editorSelector})`);
+        })
+      );
+    });
+
+    it("must check that the basic and common elements are working as expected", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+
+          await page.waitForSelector(
+            "#addSignatureTypeButton[aria-selected=true]"
+          );
+          await page.click("#addSignatureTypeInput");
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:disabled"
+          );
+          let description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("");
+          await page.waitForSelector(`${addButtonSelector}:disabled`);
+          await page.waitForSelector("#addSignatureDescInput:disabled");
+
+          await page.type("#addSignatureTypeInput", "PDF.js");
+          await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+          await page.waitForSelector("#addSignatureDescInput:not(:disabled)");
+
+          // The save button should be enabled now.
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:not(:disabled)"
+          );
+          await page.waitForSelector("#addSignatureSaveCheckbox:checked");
+
+          // The description has been filled in automatically.
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value !== ""`
+          );
+          description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("PDF.js");
+
+          // Clear the description.
+          await page.click("#addSignatureDescription > button");
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value === ""`
+          );
+
+          // Clear the text for the signature.
+          await page.click("#clearSignatureButton");
+          await page.waitForFunction(
+            `document.querySelector("#addSignatureTypeInput").value === ""`
+          );
+          // The save button should be disabled now.
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:disabled"
+          );
+          await page.waitForSelector(`${addButtonSelector}:disabled`);
+
+          await page.type("#addSignatureTypeInput", "PDF.js");
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value !== ""`
+          );
+
+          // Clearing the signature type should clear the description.
+          await page.click("#clearSignatureButton");
+          await page.waitForFunction(
+            `document.querySelector("#addSignatureTypeInput").value === ""`
+          );
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value === ""`
+          );
+
+          // Add a signature and change the description.
+          await page.type("#addSignatureTypeInput", "PDF.js");
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value !== ""`
+          );
+          await page.click("#addSignatureDescription > button");
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value === ""`
+          );
+          await page.type(descriptionInputSelector, "Hello World");
+          await page.type("#addSignatureTypeInput", "Hello");
+
+          // The description mustn't be changed.
+          // eslint-disable-next-line no-restricted-syntax
+          await waitForTimeout(100);
+          description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("Hello World");
+
+          await page.click("#addSignatureAddButton");
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: false,
+          });
+
+          const editorSelector = getEditorSelector(0);
+          await page.waitForSelector(editorSelector, { visible: true });
+          await page.waitForSelector(
+            `.canvasWrapper > svg use[href="#path_p1_0"]`,
+            { visible: true }
+          );
+
+          await page.waitForFunction(
+            `document.getElementById("viewer-alert").textContent === "Signature added"`
+          );
+
+          // Check the tooltip.
+          await page.waitForSelector(
+            `.altText.editDescription[title="Hello World"]`
+          );
+
+          // Check the aria description.
+          await page.waitForSelector(
+            `${editorSelector}[aria-description="Signature editor: ${FSI}Hello World${PDI}"]`
+          );
+
+          // Edit the description.
+          await page.click(`.altText.editDescription`);
+
+          await page.waitForSelector("#editSignatureDescriptionDialog", {
+            visible: true,
+          });
+          await page.waitForSelector("#editSignatureUpdateButton:disabled");
+          await page.waitForSelector(
+            `#editSignatureDescriptionDialog svg[aria-label="Hello World"]`
+          );
+          const editDescriptionInput = "#editSignatureDescription > input";
+          description = await page.$eval(editDescriptionInput, el => el.value);
+          expect(description).withContext(browserName).toEqual("Hello World");
+          await page.click("#editSignatureDescription > button");
+          await page.waitForFunction(
+            `document.querySelector("${editDescriptionInput}").value === ""`
+          );
+          await page.waitForSelector(
+            "#editSignatureUpdateButton:not(:disabled)"
+          );
+          await page.type(editDescriptionInput, "Hello PDF.js World");
+          await page.waitForSelector(
+            "#editSignatureUpdateButton:not(:disabled)"
+          );
+
+          await page.click("#editSignatureUpdateButton");
+
+          // Check the tooltip.
+          await page.waitForSelector(
+            `.altText.editDescription[title="Hello PDF.js World"]`
+          );
+        })
+      );
+    });
+
+    it("must check drawing with the mouse", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+
+          await page.click("#addSignatureDrawButton");
+          const drawSelector = "#addSignatureDraw";
+          await page.waitForSelector(drawSelector, { visible: true });
+
+          let description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("");
+          await page.waitForSelector(`${addButtonSelector}:disabled`);
+
+          const { x, y, width, height } = await getRect(page, drawSelector);
+          const clickHandle = await waitForPointerUp(page);
+          await page.mouse.move(x + 0.1 * width, y + 0.1 * height);
+          await page.mouse.down();
+          await page.mouse.move(x + 0.3 * width, y + 0.3 * height);
+          await page.mouse.up();
+          await awaitPromise(clickHandle);
+          await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+
+          // The save button should be enabled now.
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:not(:disabled)"
+          );
+          await page.waitForSelector("#addSignatureSaveCheckbox:checked");
+
+          // The description has been filled in automatically.
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value !== ""`
+          );
+          description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("Signature");
+
+          await page.click("#addSignatureAddButton");
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: false,
+          });
+
+          await page.waitForSelector(
+            ".canvasWrapper > svg use[href='#path_p1_0']"
+          );
+        })
+      );
+    });
+
+    it("must check adding an image", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+
+          await page.click("#addSignatureImageButton");
+          await page.waitForSelector("#addSignatureImagePlaceholder", {
+            visible: true,
+          });
+
+          let description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description).withContext(browserName).toEqual("");
+          await page.waitForSelector(`${addButtonSelector}:disabled`);
+
+          const input = await page.$("#addSignatureFilePicker");
+          await input.uploadFile(
+            `${path.join(__dirname, "../images/firefox_logo.png")}`
+          );
+          await page.waitForSelector(`#addSignatureImage > path:not([d=""])`);
+
+          // The save button should be enabled now.
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:not(:disabled)"
+          );
+          await page.waitForSelector("#addSignatureSaveCheckbox:checked");
+
+          // The description has been filled in automatically.
+          await page.waitForFunction(
+            `document.querySelector("${descriptionInputSelector}").value !== ""`
+          );
+          description = await page.$eval(
+            descriptionInputSelector,
+            el => el.value
+          );
+          expect(description)
+            .withContext(browserName)
+            .toEqual("firefox_logo.png");
+
+          await page.click("#addSignatureAddButton");
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: false,
+          });
+
+          await page.waitForSelector(
+            ".canvasWrapper > svg use[href='#path_p1_0']"
+          );
+        })
+      );
+    });
+
+    it("must check copy and paste", async () => {
+      // Run sequentially to avoid clipboard issues.
+      for (const [browserName, page] of pages) {
+        await switchToSignature(page);
+        await page.click("#editorSignatureAddSignature");
+
+        await page.waitForSelector("#addSignatureDialog", {
+          visible: true,
+        });
+        await page.type("#addSignatureTypeInput", "Hello");
+        await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+        await page.click("#addSignatureAddButton");
+
+        const editorSelector = getEditorSelector(0);
+        await page.waitForSelector(editorSelector, { visible: true });
+        const originalRect = await getRect(page, editorSelector);
+        const originalDescription = await page.$eval(
+          `${editorSelector} .altText.editDescription`,
+          el => el.title
+        );
+        const originalL10nParameter = await page.$eval(editorSelector, el =>
+          el.getAttribute("data-l10n-args")
+        );
+
+        await copy(page);
+        await paste(page);
+
+        const pastedEditorSelector = getEditorSelector(1);
+        await page.waitForSelector(pastedEditorSelector, { visible: true });
+        const pastedRect = await getRect(page, pastedEditorSelector);
+        const pastedDescription = await page.$eval(
+          `${pastedEditorSelector} .altText.editDescription`,
+          el => el.title
+        );
+        const pastedL10nParameter = await page.$eval(pastedEditorSelector, el =>
+          el.getAttribute("data-l10n-args")
+        );
+
+        expect(pastedRect)
+          .withContext(`In ${browserName}`)
+          .not.toEqual(originalRect);
+        expect(pastedDescription)
+          .withContext(`In ${browserName}`)
+          .toEqual(originalDescription);
+        expect(pastedL10nParameter)
+          .withContext(`In ${browserName}`)
+          .toEqual(originalL10nParameter);
+      }
+    });
+  });
+
+  describe("Bug 1948741", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the editor isn't too large", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+          await page.type(
+            "#addSignatureTypeInput",
+            "[18:50:03] asset pdf.scripting.mjs 105 KiB [emitted] [javascript module] (name: main)"
+          );
+          await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+          await page.click("#addSignatureAddButton");
+
+          const editorSelector = getEditorSelector(0);
+          await page.waitForSelector(editorSelector, { visible: true });
+          await page.waitForSelector(
+            `.canvasWrapper > svg use[href="#path_p1_0"]`,
+            { visible: true }
+          );
+
+          const { width } = await getRect(page, editorSelector);
+          const { width: pageWidth } = await getRect(page, ".page");
+          expect(width).toBeLessThanOrEqual(pageWidth);
+        })
+      );
+    });
+  });
+
+  describe("Bug 1949201", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the error panel is correctly removed", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+          await page.click("#addSignatureImageButton");
+          await page.waitForSelector("#addSignatureImagePlaceholder", {
+            visible: true,
+          });
+          const input = await page.$("#addSignatureFilePicker");
+          await input.uploadFile(
+            `${path.join(__dirname, "./signature_editor_spec.mjs")}`
+          );
+          await page.waitForSelector("#addSignatureError", { visible: true });
+          await page.click("#addSignatureErrorCloseButton");
+          await page.waitForSelector("#addSignatureError", { visible: false });
+
+          await input.uploadFile(
+            `${path.join(__dirname, "./stamp_editor_spec.mjs")}`
+          );
+          await page.waitForSelector("#addSignatureError", { visible: true });
+
+          await page.click("#addSignatureTypeButton");
+          await page.waitForSelector(
+            "#addSignatureTypeButton[aria-selected=true]"
+          );
+          await page.waitForSelector("#addSignatureError", { visible: false });
+          await page.click("#addSignatureCancelButton");
+        })
+      );
+    });
+  });
+
+  describe("viewerCssTheme (light)", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "empty.pdf",
+        ".annotationEditorLayer",
+        null,
+        null,
+        { viewerCssTheme: "1" }
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the signature has the correct color with the light theme", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          const colorTheme = await page.evaluate(() => {
+            const html = document.querySelector("html");
+            const style = getComputedStyle(html);
+            return style.getPropertyValue("color-scheme");
+          });
+          expect(colorTheme).toEqual("light");
+
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+          await page.type("#addSignatureTypeInput", "Should be black.");
+          await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+          await page.click("#addSignatureAddButton");
+
+          const editorSelector = getEditorSelector(0);
+          await page.waitForSelector(editorSelector, { visible: true });
+          await page.waitForSelector(
+            `.canvasWrapper > svg use[href="#path_p1_0"]`,
+            { visible: true }
+          );
+
+          const color = await page.evaluate(() => {
+            const use = document.querySelector(
+              `.canvasWrapper > svg use[href="#path_p1_0"]`
+            );
+            return use.parentNode.getAttribute("fill");
+          });
+          expect(color).toEqual("#000000");
+        })
+      );
+    });
+  });
+
+  describe("viewerCssTheme (dark)", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait(
+        "empty.pdf",
+        ".annotationEditorLayer",
+        null,
+        null,
+        { viewerCssTheme: "2" }
+      );
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the signature has the correct color with the dark theme", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          const colorTheme = await page.evaluate(() => {
+            const html = document.querySelector("html");
+            const style = getComputedStyle(html);
+            return style.getPropertyValue("color-scheme");
+          });
+          expect(colorTheme).toEqual("dark");
+
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+          await page.type("#addSignatureTypeInput", "Should be black.");
+          await page.waitForSelector(`${addButtonSelector}:not(:disabled)`);
+          await page.click("#addSignatureAddButton");
+
+          const editorSelector = getEditorSelector(0);
+          await page.waitForSelector(editorSelector, { visible: true });
+          await page.waitForSelector(
+            `.canvasWrapper > svg use[href="#path_p1_0"]`,
+            { visible: true }
+          );
+
+          const color = await page.evaluate(() => {
+            const use = document.querySelector(
+              `.canvasWrapper > svg use[href="#path_p1_0"]`
+            );
+            return use.parentNode.getAttribute("fill");
+          });
+          expect(color).toEqual("#000000");
+        })
+      );
+    });
+  });
+
+  describe("Check the aspect ratio (bug 1962819)", () => {
+    let pages, contentWidth, contentHeight;
+
+    function getContentAspectRatio(png) {
+      const { width, height } = png;
+      const buffer = new Uint32Array(png.data.buffer);
+      let x0 = width;
+      let y0 = height;
+      let x1 = 0;
+      let y1 = 0;
+      for (let i = 0; i < height; i++) {
+        for (let j = 0; j < width; j++) {
+          if (buffer[width * i + j] !== 0) {
+            x0 = Math.min(x0, j);
+            y0 = Math.min(y0, i);
+            x1 = Math.max(x1, j);
+            y1 = Math.max(y1, i);
+          }
+        }
+      }
+
+      contentWidth = x1 - x0;
+      contentHeight = y1 - y0;
+    }
+
+    beforeAll(() => {
+      const data = fs.readFileSync(
+        path.join(__dirname, "../images/samplesignature.png")
+      );
+      const png = PNG.sync.read(data);
+      getContentAspectRatio(png);
+    });
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the signature has the correct aspect ratio", async () => {
+      await Promise.all(
+        pages.map(async ([browserName, page]) => {
+          await switchToSignature(page);
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+
+          await page.click("#addSignatureImageButton");
+          await page.waitForSelector("#addSignatureImagePlaceholder", {
+            visible: true,
+          });
+          await page.waitForSelector(`${addButtonSelector}:disabled`);
+
+          const input = await page.$("#addSignatureFilePicker");
+          await input.uploadFile(
+            `${path.join(__dirname, "../images/samplesignature.png")}`
+          );
+          await page.waitForSelector(`#addSignatureImage > path:not([d=""])`);
+
+          // The save button should be enabled now.
+          await page.waitForSelector(
+            "#addSignatureSaveContainer > input:not(:disabled)"
+          );
+          await page.click("#addSignatureAddButton");
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: false,
+          });
+          const { width, height } = await getRect(
+            page,
+            ".canvasWrapper > svg use[href='#path_p1_0']"
+          );
+
+          expect(Math.abs(contentWidth / width - contentHeight / height))
+            .withContext(
+              `In ${browserName} (${contentWidth}x${contentHeight} vs ${width}x${height})`
+            )
+            .toBeLessThan(0.25);
+        })
+      );
+    });
+  });
+
+  describe("Bug 1974257", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that the signature save checkbox is disabled if storage is full", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          await switchToSignature(page);
+
+          for (let i = 0; i < 6; i++) {
+            await page.click("#editorSignatureAddSignature");
+            await page.waitForSelector("#addSignatureDialog", {
+              visible: true,
+            });
+            await page.click("#addSignatureTypeInput");
+            await page.type("#addSignatureTypeInput", `PDF.js ${i}`);
+            if (i === 5) {
+              await page.waitForSelector(
+                "#addSignatureSaveCheckbox:not(checked)"
+              );
+              await page.waitForSelector("#addSignatureSaveCheckbox:disabled");
+            } else {
+              await page.waitForSelector("#addSignatureSaveCheckbox:checked");
+              await page.waitForSelector(
+                "#addSignatureSaveCheckbox:not(:disabled)"
+              );
+            }
+            await page.click("#addSignatureAddButton");
+            await page.waitForSelector("#addSignatureDialog", {
+              visible: false,
+            });
+          }
+        })
+      );
+    });
+  });
+
+  describe("Bug 1975719", () => {
+    let pages;
+
+    beforeEach(async () => {
+      pages = await loadAndWait("empty.pdf", ".annotationEditorLayer");
+    });
+
+    afterEach(async () => {
+      await closePages(pages);
+    });
+
+    it("must check that an error is displayed with a monochrome image", async () => {
+      await Promise.all(
+        pages.map(async ([_, page]) => {
+          await switchToSignature(page);
+
+          await page.click("#editorSignatureAddSignature");
+
+          await page.waitForSelector("#addSignatureDialog", {
+            visible: true,
+          });
+          await page.click("#addSignatureImageButton");
+          await page.waitForSelector("#addSignatureImagePlaceholder", {
+            visible: true,
+          });
+          const input = await page.$("#addSignatureFilePicker");
+          await input.uploadFile(
+            `${path.join(__dirname, "../images/red.png")}`
+          );
+          await page.waitForSelector("#addSignatureError", { visible: true });
+          await page.waitForSelector(
+            "#addSignatureErrorTitle[data-l10n-id='pdfjs-editor-add-signature-image-no-data-error-title']"
+          );
+          await page.waitForSelector(
+            "#addSignatureErrorDescription[data-l10n-id='pdfjs-editor-add-signature-image-no-data-error-description']"
+          );
+          await page.click("#addSignatureErrorCloseButton");
+          await page.waitForSelector("#addSignatureError", { visible: false });
+        })
+      );
+    });
+  });
+});