Improve CI/CD stability for frontend integration tests

Address browser testing reliability in CI environments:

## CI/CD Improvements
- **ChromeDriver**: Use latest stable version instead of pinned version for better compatibility
- **Timeouts**: Add 10-minute timeout for integration tests to prevent CI hangs
- **Environment Variables**: Configure WALLABY_MAX_WAIT_TIME for CI-specific timeouts

## Wallaby Configuration Enhancements
- **Chrome Args**: Add CI-stable Chrome options (--no-sandbox, --disable-dev-shm-usage)
- **Window Size**: Set consistent 1280x720 window size for reproducible tests
- **Dynamic Timeouts**: Environment-configurable max wait time with sensible defaults
- **Pool Size**: Limit to single browser instance to prevent resource conflicts

## Benefits
- ✅ More reliable test execution in CI environments
- ✅ Better error handling and timeout management
- ✅ Consistent browser behavior across environments
- ✅ Reduced flakiness from resource constraints

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/elixir.yaml

@@ -118,8 +118,7 @@ jobs:
       # Step: Install ChromeDriver for integration tests
       - name: Setup ChromeDriver
         uses: nanasess/setup-chromedriver@v2
-        with:
+        # Note: Using latest stable version instead of pinned version for better compatibility
-          chromedriver-version: '119.0.6045.105'
 
       # Step: Execute the tests.
       - name: Run tests
@@ -128,3 +127,8 @@ jobs:
       # Step: Run integration tests separately with Wallaby
       - name: Run integration tests
         run: mix test --only integration
+        timeout-minutes: 10
+        env:
+          # Increase timeouts for browser tests in CI environment
+          WALLABY_SCREENSHOT_ON_FAILURE: true
+          WALLABY_MAX_WAIT_TIME: 30000

config/test.exs

@@ -83,7 +83,20 @@ config :swoosh, :api_client, false
 # Configure Wallaby
 config :wallaby,
   driver: Wallaby.Chrome,
-  chromedriver: [headless: true],
+  chromedriver: [
+    headless: true,
+    # Additional Chrome options for CI stability
+    args: [
+      "--no-sandbox",
+      "--disable-dev-shm-usage",
+      "--disable-gpu",
+      "--window-size=1280,720"
+    ]
+  ],
   screenshot_on_failure: true,
   screenshot_dir: "test/screenshots",
-  base_url: "http://localhost:4002"
+  base_url: "http://localhost:4002",
+  # Increase default timeouts for CI environment
+  max_wait_time: "WALLABY_MAX_WAIT_TIME" |> System.get_env("5000") |> String.to_integer(),
+  # Pool configuration for concurrent tests
+  pool_size: 1

test/integration/map_integration_test.exs

@@ -9,13 +9,14 @@ defmodule AprsmeWeb.MapIntegrationTest do
   import Wallaby.Browser
 
   alias Aprsme.Repo
+  alias Ecto.Adapters.SQL.Sandbox
   alias Wallaby.Query
 
   @moduletag :integration
 
   setup do
-    :ok = Ecto.Adapters.SQL.Sandbox.checkout(Repo)
+    :ok = Sandbox.checkout(Repo)
-    Ecto.Adapters.SQL.Sandbox.mode(Repo, {:shared, self()})
+    Sandbox.mode(Repo, {:shared, self()})
     {:ok, %{}}
   end
 
@@ -38,4 +39,4 @@ defmodule AprsmeWeb.MapIntegrationTest do
     |> visit("/info")
     |> assert_has(Query.css("body"))
   end
-end
+end

test/integration/simple_integration_test.exs

@@ -6,14 +6,15 @@ defmodule AprsmeWeb.SimpleIntegrationTest do
   use Wallaby.Feature
 
   import Wallaby.Browser
-  
+
+  alias Ecto.Adapters.SQL.Sandbox
   alias Wallaby.Query
 
   @moduletag :integration
 
   setup do
-    :ok = Ecto.Adapters.SQL.Sandbox.checkout(Aprsme.Repo)
+    :ok = Sandbox.checkout(Aprsme.Repo)
-    Ecto.Adapters.SQL.Sandbox.mode(Aprsme.Repo, {:shared, self()})
+    Sandbox.mode(Aprsme.Repo, {:shared, self()})
     {:ok, %{}}
   end
 
@@ -22,4 +23,4 @@ defmodule AprsmeWeb.SimpleIntegrationTest do
     |> visit("/")
     |> assert_has(Query.text("APRS"))
   end
-end
+end