Make selenium work on CI

BTCPayServer.Tests/SeleniumTester.cs

@@ -34,7 +34,14 @@ namespace BTCPayServer.Tests
             ChromeOptions options = new ChromeOptions();
             options.AddArguments("headless"); // Comment to view browser
             options.AddArguments("window-size=1200x600"); // Comment to view browser
-            Driver = new ChromeDriver(Directory.GetCurrentDirectory(), options);
+            if (Server.PayTester.InContainer)
+            {
+                Driver = new OpenQA.Selenium.Remote.RemoteWebDriver(new Uri("http://selenium:4444/wd/hub"), options);
+            }
+            else
+            {
+                Driver = new ChromeDriver(Directory.GetCurrentDirectory(), options);
+            }
             Driver.Navigate().GoToUrl(Server.PayTester.ServerUri);
         }
 

BTCPayServer.Tests/docker-compose.yml

@@ -30,6 +30,7 @@ services:
       - "80"
     links:
       - dev
+      - selenium
     extra_hosts: 
       - "tests:127.0.0.1"
     volumes:
@@ -53,7 +54,6 @@ services:
       - lightning-charged
       - customer_lnd
       - merchant_lnd
-      - selenium
 
   devlnd: 
     image: btcpayserver/bitcoin:0.18.0
@@ -288,6 +288,8 @@ services:
 
   selenium:
     image:  selenium/standalone-chrome
+    expose:
+        - "4444"
 
 volumes:
     bitcoin_datadir:

BTCPayServer.Tests/docker-entrypoint.sh

@@ -2,7 +2,7 @@
 set -e
 
 dotnet test --filter Fast=Fast --no-build
-# dotnet test --filter Selenium=Selenium --no-build -v n
+dotnet test --filter Selenium=Selenium --no-build -v n
 dotnet test --filter Integration=Integration --no-build -v n
 if [[ "$TESTS_RUN_EXTERNAL_INTEGRATION" == "true" ]]; then
     dotnet test --filter ExternalIntegration=ExternalIntegration --no-build -v n