chore: Stop using default platforms and versions in IT tests

Also update reference screenshot names to match the current CI
environment, and remove outdated PhantomJS screenshots.

Author: Ansku

vaadin-testbench-integration-tests/reference-screenshots/button4_linux_chrome_139.png

@@ -12,11 +12,14 @@
 
 import static org.junit.Assert.assertTrue;
 
+import java.io.IOException;
+
 import org.junit.Test;
 
 import com.vaadin.testUI.ElementQueryUI;
 import com.vaadin.testbench.By;
 import com.vaadin.testbench.TestBenchElement;
+import com.vaadin.testbench.screenshot.ReferenceNameGenerator;
 
 public class ElementScreenCompareIT extends MultiBrowserTest {
 
@@ -33,10 +36,27 @@ public void elementCompareScreen() throws Exception {
         TestBenchElement button4 = (TestBenchElement) findElements(
                 By.className("v-button")).get(4);
 
-        assertTrue(button4.compareScreen("button4"));
+        compareScreen(button4, "button4");
         TestBenchElement layout = (TestBenchElement) button4
                 .findElement(By.xpath("../.."));
-        assertTrue(layout.compareScreen("layout"));
+        compareScreen(layout, "layout");
+    }
+
+    private void compareScreen(TestBenchElement element, String referenceId)
+            throws IOException {
+        assertTrue(errorMessage(element, referenceId),
+                element.compareScreen(referenceId));
+    }
+
+    private String errorMessage(TestBenchElement element,
+            String referenceId) {
+        ReferenceNameGenerator referenceNameGenerator = element
+                .getCommandExecutor().getReferenceNameGenerator();
+        return String.format(
+                "Screenshot comparison failed. Comparison file: "
+                        + "%s.png (number, if any, may vary)",
+                referenceNameGenerator.generateName(referenceId,
+                        getDesiredCapabilities()));
     }
 
 }

vaadin-testbench-integration-tests/reference-screenshots/button4_windows_firefox_45.png renamed to vaadin-testbench-integration-tests/reference-screenshots/button4_linux_firefox_139.png

@@ -26,6 +26,7 @@
 import com.vaadin.testbench.annotations.RunLocally;
 import com.vaadin.testbench.annotations.RunOnHub;
 import com.vaadin.testbench.parallel.Browser;
+import com.vaadin.testbench.parallel.DefaultBrowserFactory;
 
 /**
  * Provides values for parameters which depend on where the test is run.
@@ -35,7 +36,7 @@
  * @author Vaadin Ltd
  */
 
-@BrowserFactory(VaadinBrowserFactory.class)
+@BrowserFactory(DefaultBrowserFactory.class)
 @RunOnHub("tb5-hub.intra.itmill.com")
 public abstract class PrivateTB5Configuration extends AbstractTB5Test {
     private static final String HOSTNAME_PROPERTY = "deployment.hostname";
@@ -72,7 +73,7 @@ public abstract class PrivateTB5Configuration extends AbstractTB5Test {
     }
 
     protected static DesiredCapabilities getRunLocallyCapabilities() {
-        VaadinBrowserFactory factory = new VaadinBrowserFactory();
+        DefaultBrowserFactory factory = new DefaultBrowserFactory();
 
         try {
             if (properties.containsKey(RUN_LOCALLY_PROPERTY)) {