diff --git a/myApp.js b/myApp.js
index 0c467f3..3f9bdd1 100644
--- a/myApp.js
+++ b/myApp.js
@@ -2177,7 +2177,8 @@ function displayUsersProjects() {
   let favoriteProjectsString = '';
   let projects = store['favorite-projects'];
   if (projects && projects.length > 0) {
-    favoriteProjectsString += '<ul id="projects" class="list-container clickable">';
+    favoriteProjectsString +=
+      '<ul class="list-container clickable" data-testid="favorite-projects">';
     let chevron = chevronLgRightIcon;
     for (let projectObject of projects) {
       let projectString = "'Project'";
diff --git a/test/favorite-projects.spec.js b/test/favorite-projects.spec.js
new file mode 100644
index 0000000..62d8647
--- /dev/null
+++ b/test/favorite-projects.spec.js
@@ -0,0 +1,108 @@
+const assert = require('assert');
+const { newApp, stopAppAfterEach } = require('./util');
+
+describe('Favorite projects', function () {
+  this.timeout(25000);
+
+  const EXAMPLE_PROJECT = {
+    added: Date.now(),
+    type: 'projects',
+    web_url: 'https://gitlab.com/mvanremmerden/gitdock',
+    id: 28462485,
+    visibility: 'public',
+    name: 'GitDock ⚓️',
+    title: 'GitDock ⚓️',
+    namespace: { name: 'Marcel van Remmerden' },
+    parent_name: 'Marcel van Remmerden / GitDock ⚓️',
+    parent_url: 'https://gitlab.com/mvanremmerden',
+    name_with_namespace: 'Marcel van Remmerden / GitDock ⚓️',
+    open_issues_count: 52,
+    last_activity_at: '2022-01-31T09:55:37.993Z',
+    avatar_url: 'https://gitlab.com/uploads/-/system/project/avatar/28462485/gitlab.png',
+    star_count: 124,
+    forks_count: 17,
+  };
+
+  const listFavoriteProjects = async (window) =>
+    window.locator('[data-testid="favorite-projects"] li').allTextContents();
+
+  const openSettings = async (window) => {
+    await window.click('#edit-favorite-projects');
+    await window.waitForSelector('#favorite-projects');
+  };
+
+  const addProject = async (window, url) => {
+    await window.click('#add-project-dialog a');
+    await window.fill('#project-settings-link', url);
+    await window.click('#project-settings-add-button');
+    await window.waitForSelector('#add-project-dialog a');
+  };
+
+  beforeEach(async function () {
+    await newApp(this, { loggedIn: true });
+  });
+
+  stopAppAfterEach();
+
+  it('shows no favorite projects', async function () {
+    assert.equal((await listFavoriteProjects(this.window)).length, 0);
+  });
+
+  it('adds a new project', async function () {
+    await openSettings(this.window);
+    await addProject(this.window, EXAMPLE_PROJECT.web_url);
+
+    await this.window.click('#detail-header');
+    await this.window.waitForSelector('[data-testid="favorite-projects"]');
+
+    const projects = await listFavoriteProjects(this.window);
+
+    assert.equal(projects.length, 1);
+    assert.equal(projects[0].includes(EXAMPLE_PROJECT.name), true);
+    assert.equal(projects[0].includes(EXAMPLE_PROJECT.namespace.name), true);
+  });
+
+  it('shows the correct project link', async function () {
+    await newApp(this, {
+      loggedIn: true,
+      favoriteProjects: [EXAMPLE_PROJECT],
+    });
+
+    const onclick = await this.window
+      .locator('[data-testid="favorite-projects"] li')
+      .getAttribute('onclick');
+
+    assert.equal(onclick, `goToDetail('Project', '${JSON.stringify(EXAMPLE_PROJECT)}')`);
+  });
+
+  it('deletes an existing project', async function () {
+    await newApp(this, {
+      loggedIn: true,
+      favoriteProjects: [EXAMPLE_PROJECT],
+    });
+
+    assert.equal((await listFavoriteProjects(this.window)).length, 1);
+
+    await this.window.click('#edit-favorite-projects');
+    await this.window.waitForSelector('#favorite-projects');
+    await this.window.click('#favorite-projects .bookmark-delete');
+
+    await this.window.click('#detail-header');
+    await this.window.waitForTimeout(100);
+
+    assert.equal((await listFavoriteProjects(this.window)).length, 0);
+  });
+
+  // Skipped due to https://gitlab.com/mvanremmerden/gitdock/-/issues/110
+  it.skip('prevents adding a project twice', async function () {
+    await openSettings(this.window);
+
+    await addProject(this.window, EXAMPLE_PROJECT.web_url);
+    await addProject(this.window, EXAMPLE_PROJECT.web_url);
+
+    await this.window.click('#detail-header');
+    await this.window.waitForTimeout(100);
+
+    assert.equal((await listFavoriteProjects(this.window)).length, 1);
+  });
+});
diff --git a/test/util/index.js b/test/util/index.js
index 678a77a..9fd08ec 100644
--- a/test/util/index.js
+++ b/test/util/index.js
@@ -12,24 +12,43 @@ const userDataIfLoggedIn = (loggedIn = false) => {
   };
 };
 
+const stopAppIfStarted = async (thisValue) => {
+  if (thisValue.app) {
+    await thisValue.app.close();
+    thisValue.app = null;
+  }
+};
+
 module.exports = {
   /**
+   * @param {Object} thisValue
    * @param {{
    *  theme?: 'dark' | 'light',
    *  loggedIn?: boolean,
    *  platform?: 'linux' | 'darwin' | 'win32',
    *  browserHistory?: import('node-browser-history').BrowserHistory[],
-   *  bookmarks?: { title: string, type: string, web_url: string, parent_url: string, added: number, parent_name: string }[] },
+   *  bookmarks?: { title: string, type: string, web_url: string, parent_url: string, added: number, parent_name: string }[],
+   *  favoriteProjects?: { added: number, type: 'projects', web_url: string, id: number, visibility: 'public'|'internal'|'private', name: string, title: string, namespace: { name: string }, parent_name: string, parent_url: string, name_with_namespace: string, open_issues_count: number, last_activity_at: string, avatar_url: string, star_count: number, forks_count: number }[],
    * }
    */
   async newApp(
     thisValue,
-    { theme, loggedIn, platform = process.platform, browserHistory, bookmarks = [] } = {},
+    {
+      theme,
+      loggedIn,
+      platform = process.platform,
+      browserHistory,
+      bookmarks = [],
+      favoriteProjects = [],
+    } = {},
   ) {
+    await stopAppIfStarted(thisValue);
+
     const store = {
       theme,
       ...userDataIfLoggedIn(loggedIn),
       bookmarks,
+      'favorite-projects': favoriteProjects,
     };
 
     const app = await electron.launch({
@@ -56,10 +75,7 @@ module.exports = {
   },
   stopAppAfterEach() {
     afterEach(async function () {
-      if (this.app) {
-        await this.app.close();
-        this.app = null;
-      }
+      await stopAppIfStarted(this);
     });
   },
 };