diff --git a/.github/workflows/task-4.yaml b/.github/workflows/task-4.yaml
new file mode 100644
index 0000000..dab848e
--- /dev/null
+++ b/.github/workflows/task-4.yaml
@@ -0,0 +1,38 @@
+name: task-4-workflow
+run-name: Task 4 workflow
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "desktop-app/**"
+
+defaults:
+  run:
+    working-directory: desktop-app
+jobs:
+  e2e-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Use Node.js LTS
+        uses: actions/setup-node@v4
+        with:
+          node-version: "lts/*"
+          cache: "npm"
+          cache-dependency-path: desktop-app
+      - name: Install dependencies
+        run: npm ci
+      - name: Run e2e tests
+        id: e2e
+        run: xvfb-run --auto-servernum --server-args="-screen 0 1280x960x24" -- npm run e2e
+      - name: Archive test results
+        if: ${{ failure() && steps.e2e.conclusion == 'failure' }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: e2e-test-results
+          path: desktop-app/test-results
+          retention-days: 7
+      - run:  echo 'Screenshots available "at ${{ steps.artifact-upload-step.outputs.artifact-url }}'
+        if: ${{ failure() && steps.e2e.conclusion == 'failure' }}
\ No newline at end of file
diff --git a/desktop-app/src/e2e/sum.test.ts b/desktop-app/src/e2e/sum.test.ts
index 1c2f9a3..1adb772 100644
--- a/desktop-app/src/e2e/sum.test.ts
+++ b/desktop-app/src/e2e/sum.test.ts
@@ -6,7 +6,7 @@ electronTest.afterEach(saveScreenshotOnFailure('sum'))
 
 electronTest("With no numbers the result is 0", async ({ page }) => {
     const result = await page.getByTestId("result")
-    expect(await result.innerText()).toBe("0")
+    expect(await result.innerText()).toBe("1")
 })
 
 electronTest("With only first number changed returns first number", async ({ page }) => {