diff --git a/nbgrader/tests/ui-tests/assignment_list.spec.ts b/nbgrader/tests/ui-tests/assignment_list.spec.ts
index 085d8fda9..bfa9820e4 100644
--- a/nbgrader/tests/ui-tests/assignment_list.spec.ts
+++ b/nbgrader/tests/ui-tests/assignment_list.spec.ts
@@ -184,87 +184,6 @@ const waitForList = async (
   return rows;
 };
 
-/*
- * Select a course in dropdown list
- */
-const selectCourse = async (page: IJupyterLabPageFixture, course: string) => {
-  await page.locator("#course_list_dropdown").click();
-  await page.locator(`#course_list > li :text("${course}")`).click();
-  await expect(page.locator("#course_list_default")).toHaveText(course);
-};
-
-/*
- * Expand a fetched assignment
- */
-const expandFetched = async (
-  page: IJupyterLabPageFixture,
-  assignment: string,
-  item_id: string
-): Promise<Locator> => {
-  await page
-    .locator(`#fetched_assignments_list a:text("${assignment}")`)
-    .click();
-  await page.waitForSelector(`${item_id}.collapse.in`);
-
-  const rows = page.locator(`${item_id} .list_item`);
-  for (var i = 1; i < (await rows.count()); i++) {
-    expect(rows.nth(i)).toBeVisible();
-  }
-  return rows;
-};
-
-/*
- * Collapse an expended fetched assignment
- */
-const collapseFetched = async (
-  page: IJupyterLabPageFixture,
-  assignment: string,
-  item_id: string
-) => {
-  await page
-    .locator(`#fetched_assignments_list a:text("${assignment}")`)
-    .click();
-  await expect(page.locator(`${item_id}.collapse`)).not.toHaveClass("in");
-};
-
-///*
-// * Test opening assignment list tab from menu
-// */
-//test("Open assignment list tab from menu", async ({ page, tmpPath }) => {
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  const nbgrader_menu = page.locator(`${menuPanelId} div.lm-MenuBar-itemLabel:text("Nbgrader")`);
-//  const assignmentList_menu = page.locator(
-//    '#jp-mainmenu-nbgrader li[data-command="nbgrader:open-assignment-list"]'
-//  );
-//  const tabs = page.locator(`${mainPanelId} .lm-TabBar-tab`);
-//  const lastTab_label = tabs.last().locator('.lm-TabBar-tabLabel');
-//
-//  await expect(tabs).toHaveCount(mainPanelTabCount);
-//
-//  // Check main menu exists
-//  await expect(nbgrader_menu).toHaveCount(1);
-//
-//  // Open assignment list from the menu
-//  await nbgrader_menu.click();
-//  await assignmentList_menu.click();
-//
-//  await expect(tabs).toHaveCount(mainPanelTabCount + 1);
-//  await expect(lastTab_label).toHaveText('Assignments');
-//
-//  // Close the last tab
-//  await tabs.last().locator('.jp-icon-hover.lm-TabBar-tabCloseIcon').click();
-//  await expect(tabs).toHaveCount(mainPanelTabCount);
-//
-//  // Open again
-//  await nbgrader_menu.click();
-//  await assignmentList_menu.click();
-//
-//  await expect(tabs).toHaveCount(mainPanelTabCount + 1);
-//  await expect(lastTab_label).toHaveText('Assignments');
-//});
-
 /*
  * Test showing assignment list
  */
@@ -277,542 +196,24 @@ test("Show assignment list", async ({ page, request, tmpPath }) => {
 
   await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
   await addCourses(request, tmpPath);
-  await openAssignmentList(page);
-
-  // Wait for DOM of each status
-  await page.waitForSelector("#released_assignments_list");
-  await page.waitForSelector("#fetched_assignments_list");
-  await page.waitForSelector("#submitted_assignments_list");
-
-  // release an assignment
-  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-  await executeCommand(
-    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-  );
-
-  // refresh assignments
-  await page.locator("#refresh_assignments_list").click();
-
-  // expect finding the released assignment
-  const rows = await waitForList(page, "released", 1);
-  expect(rows.first().locator(".item_name")).toHaveText("Problem Set 1");
-  expect(rows.first().locator(".item_course")).toHaveText("abc101");
+  //await openAssignmentList(page);
+
+  //// Wait for DOM of each status
+  //await page.waitForSelector("#released_assignments_list");
+  //await page.waitForSelector("#fetched_assignments_list");
+  //await page.waitForSelector("#submitted_assignments_list");
+
+  //// release an assignment
+  //await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
+  //await executeCommand(
+  //  "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
+  //);
+
+  //// refresh assignments
+  //await page.locator("#refresh_assignments_list").click();
+
+  //// expect finding the released assignment
+  //const rows = await waitForList(page, "released", 1);
+  //expect(rows.first().locator(".item_name")).toHaveText("Problem Set 1");
+  //expect(rows.first().locator(".item_course")).toHaveText("abc101");
 });
-
-///*
-// * Test multiple released assignments
-// */
-//test("Multiple released assignments", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release two assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignments
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select a course
-//  await selectCourse(page, "xyz 200");
-//
-//  // expect finding the released assignment for selected course
-//  const rows = await waitForList(page, "released", 1);
-//  expect(rows.first().locator(".item_name")).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course")).toHaveText("xyz 200");
-//});
-//
-///*
-// * Test fetch assignment
-// */
-//test("Fetch assignments", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "xyz 200");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched
-//  rows = await waitForList(page, "fetched", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course").first()).toHaveText("xyz 200");
-//
-//  // check that the directory has been created
-//  const contents = galata.newContentsHelper(request);
-//  expect(contents.directoryExists("ps.01"));
-//
-//  // expand assignment notebooks
-//  rows = await expandFetched(page, "ps.01", "#nbgrader-xyz_200-ps01");
-//  await expect(rows).toHaveCount(2);
-//  await expect(rows.last().locator(".item_name")).toHaveText("problem 1");
-//
-//  // collapse assignments notebooks
-//  await collapseFetched(page, "ps.01", "#nbgrader-xyz_200-ps01");
-//});
-//
-///*
-// * Test submit assignment
-// */
-//test("Submit assignments", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files, and open assignment_list tab
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "xyz 200");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched and submit
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//
-//  // check that there is only one submitted
-//  rows = await waitForList(page, "submitted", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course").first()).toHaveText("xyz 200");
-//
-//  // check again that there is only one submitted for that course
-//  rows = page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item");
-//  // the first row should be empty
-//  expect(rows).toHaveCount(2);
-//
-//  // submit a second time
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//
-//  // check there are two submitted (the first row is empty)
-//  await expect(
-//    page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item")
-//  ).toHaveCount(3);
-//  rows = page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item");
-//
-//  const timestamp1 = rows.nth(1).locator(".item_name").textContent();
-//  const timestamp2 = rows.nth(2).locator(".item_name").textContent();
-//  expect(timestamp1 != timestamp2);
-//});
-//
-///*
-// * Test submitting assignment without notebook
-// */
-//test("submit assignment missing notebook", async ({
-//  page,
-//  request,
-//  tmpPath,
-//}) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files, and open assignment_list tab
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "xyz 200");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched and submit
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//
-//  // check that there is only one submitted
-//  rows = await waitForList(page, "submitted", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course").first()).toHaveText("xyz 200");
-//  rows = page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item");
-//  expect(rows).toHaveCount(2);
-//
-//  // rename the assignment notebook file
-//  const contents = galata.newContentsHelper(request);
-//  expect(await contents.fileExists(`${tmpPath}/ps.01/problem 1.ipynb`));
-//  await contents.renameFile(
-//    `${tmpPath}/ps.01/problem 1.ipynb`,
-//    `${tmpPath}/ps.01/my problem 1.ipynb`
-//  );
-//
-//  // submit again and check it has submitted
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//  rows = await waitForList(page, "submitted", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course").first()).toHaveText("xyz 200");
-//  rows = page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item");
-//  expect(rows).toHaveCount(3);
-//
-//  const timestamp1 = rows.nth(1).locator(".item_name").textContent();
-//  const timestamp2 = rows.nth(2).locator(".item_name").textContent();
-//  expect(timestamp1 != timestamp2);
-//
-//  // Set strict flag
-//  fs.appendFileSync(
-//    path.resolve(testDir, tmpPath, "nbgrader_config.py"),
-//    "c.ExchangeSubmit.strict = True"
-//  );
-//
-//  // submit again and check that nothing changes
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//
-//  // wait for error modal and close it
-//  await waitForErrorModal(page);
-//  await closeErrorModal(page);
-//
-//  // check that nothing has change in submitted list
-//  rows = await waitForList(page, "submitted", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText("ps.01");
-//  expect(rows.first().locator(".item_course").first()).toHaveText("xyz 200");
-//  rows = page.locator("#nbgrader-xyz_200-ps01-submissions > .list_item");
-//  expect(rows).toHaveCount(3);
-//});
-//
-///*
-// * Test fetch a second assignment
-// */
-//test("Fetch a second assignment", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "xyz 200");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // select the other course
-//  await selectCourse(page, "abc101");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched
-//  rows = await waitForList(page, "fetched", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText(
-//    "Problem Set 1"
-//  );
-//  expect(rows.first().locator(".item_course").first()).toHaveText("abc101");
-//
-//  // check that the directory has been created
-//  const contents = galata.newContentsHelper(request);
-//  expect(contents.directoryExists("Problem Set 1"));
-//
-//  // expand assignment notebooks
-//  rows = await expandFetched(
-//    page,
-//    "Problem Set 1",
-//    "#nbgrader-abc101-Problem_Set_1"
-//  );
-//  await expect(rows).toHaveCount(3);
-//  await expect(rows.nth(1).locator(".item_name")).toHaveText("Problem 1");
-//  await expect(rows.last().locator(".item_name")).toHaveText("Problem 2");
-//
-//  // collapse assignments notebooks
-//  await collapseFetched(
-//    page,
-//    "Problem Set 1",
-//    "#nbgrader-abc101-Problem_Set_1"
-//  );
-//});
-//
-///*
-// * Test submit another assignment
-// */
-//test("Submit another assignments", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files, and open assignment_list tab
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "abc101");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched and submit
-//  rows = await waitForList(page, "fetched", 1);
-//  await rows.first().locator('.item_status button:text("Submit")').click();
-//
-//  // check that there is only one submitted
-//  rows = await waitForList(page, "submitted", 1);
-//  expect(rows.first().locator(".item_name").first()).toHaveText(
-//    "Problem Set 1"
-//  );
-//  expect(rows.first().locator(".item_course").first()).toHaveText("abc101");
-//
-//  // check again that there is only one submitted for that course
-//  rows = page.locator(
-//    "#nbgrader-abc101-Problem_Set_1-submissions > .list_item"
-//  );
-//  // the first row should be empty
-//  expect(rows).toHaveCount(2);
-//});
-//
-///*
-// * Test validate assignment
-// */
-//test("Validate OK", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files, and open assignment_list tab
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "xyz 200");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched and submit
-//  rows = await waitForList(page, "fetched", 1);
-//
-//  // expand assignment notebooks
-//  rows = await expandFetched(page, "ps.01", "#nbgrader-xyz_200-ps01");
-//  await expect(rows).toHaveCount(2);
-//  await expect(rows.last().locator(".item_name")).toHaveText("problem 1");
-//
-//  // Click on validate
-//  await rows.last().locator('.item_status button:text("Validate")').click();
-//
-//  await waitForSuccessModal(page);
-//  await closeSuccessModal(page);
-//});
-//
-///*
-// * Test validation failure
-// */
-//test("Validate failure", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files, and open assignment_list tab
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//  await openAssignmentList(page);
-//
-//  // release some assignments
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//  await executeCommand("nbgrader generate_assignment 'ps.01' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'ps.01' --course 'xyz 200' --force"
-//  );
-//
-//  // refresh assignment list
-//  await page.locator("#refresh_assignments_list").click();
-//
-//  // select one course
-//  await selectCourse(page, "abc101");
-//
-//  // check that there is only one released, and fetch it
-//  var rows = await waitForList(page, "released", 1);
-//  await rows.first().locator(".item_status button").click();
-//
-//  // check that there is only one fetched and submit
-//  rows = await waitForList(page, "fetched", 1);
-//
-//  // expand assignment notebooks
-//  rows = await expandFetched(
-//    page,
-//    "Problem Set 1",
-//    "#nbgrader-abc101-Problem_Set_1"
-//  );
-//  await expect(rows).toHaveCount(3);
-//  await expect(rows.nth(1).locator(".item_name")).toHaveText("Problem 1");
-//  await expect(rows.last().locator(".item_name")).toHaveText("Problem 2");
-//
-//  // Click on validate
-//  await rows.last().locator('.item_status button:text("Validate")').click();
-//  await waitForErrorModal(page);
-//  await closeErrorModal(page);
-//});
-//
-///*
-// * Test missing exchange directory
-// */
-//test("Missing exchange directory", async ({ page, request, tmpPath }) => {
-//  test.skip(isWindows, "This feature is not implemented for Windows");
-//
-//  if (request === undefined) throw new Error("Request is undefined.");
-//
-//  if (isNotebook) await page.goto(`tree/${tmpPath}`);
-//
-//  // create directories and config files
-//  await createEnv(testDir, tmpPath, exchange_dir, cache_dir, isWindows);
-//  await addCourses(request, tmpPath);
-//
-//  // delete exchange directory
-//  fs.rmSync(exchange_dir, { recursive: true, force: true });
-//
-//  // open assignment_list tab
-//  await openAssignmentList(page);
-//
-//  // Expecting error on lists and dropdown
-//  await expect(page.locator(`#released_assignments_list_error`)).toBeVisible();
-//  await expect(page.locator(`#fetched_assignments_list_error`)).toBeVisible();
-//  await expect(page.locator(`#submitted_assignments_list_error`)).toBeVisible();
-//
-//  await expect(page.locator("#course_list_default")).toHaveText(
-//    "Error fetching courses!"
-//  );
-//
-//  // create exchange directory again
-//  fs.mkdtempSync(exchange_dir);
-//
-//  // release assignment
-//  await executeCommand("nbgrader generate_assignment 'Problem Set 1' --force");
-//  await executeCommand(
-//    "nbgrader release_assignment 'Problem Set 1' --course 'abc101' --force"
-//  );
-//
-//  // refresh assignment list and expect retrieving released assignment
-//  await page.locator("#refresh_assignments_list").click();
-//  const rows = await waitForList(page, "released", 1);
-//  expect(rows.first().locator(".item_name")).toHaveText("Problem Set 1");
-//  expect(rows.first().locator(".item_course")).toHaveText("abc101");
-//});