log the found files during download

Author: asolntsev

java/test/org/openqa/selenium/grid/router/RemoteWebDriverDownloadTest.java

@@ -17,6 +17,7 @@
 
 package org.openqa.selenium.grid.router;
 
+import static java.util.stream.Collectors.toList;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.openqa.selenium.HasDownloads.DownloadedFile;
 import static org.openqa.selenium.remote.CapabilityType.ENABLE_DOWNLOADS;
@@ -36,8 +37,6 @@
 import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
-import java.util.stream.Collectors;
-
 import org.junit.jupiter.api.*;
 import org.openqa.selenium.*;
 import org.openqa.selenium.chrome.ChromeOptions;
@@ -111,21 +110,26 @@ void canListDownloadedFiles() {
     driver.findElement(By.id("file-2")).click();
 
     HasDownloads hasDownloads = (HasDownloads) driver;
-    new WebDriverWait(driver, Duration.ofSeconds(5))
+    new WebDriverWait(driver, Duration.ofSeconds(5), Duration.ofMillis(50))
         .until(
-            d ->
-                hasDownloads.getDownloadableFiles().stream()
-                        // ensure we hit no temporary file created by the browser while
-                        // downloading
-                        .filter((f) -> FILE_EXTENSIONS.stream().anyMatch(f::endsWith))
-                        .count()
-                    == 2);
+            d -> {
+              List<String> files = hasDownloads.getDownloadableFiles();
+              List<String> matchingFiles =
+                  files.stream()
+                      .filter((f) -> FILE_EXTENSIONS.stream().anyMatch(f::endsWith))
+                      .collect(toList());
+              System.out.printf(
+                  "[*****] FOUND %s FILES: %s; MATCHING %s FILES: %s%n",
+                  files.size(), files, matchingFiles.size(), matchingFiles);
+              // ensure we hit no temporary file created by the browser while downloading
+              return matchingFiles.size() == 2;
+            });
 
     List<String> downloadableFiles = hasDownloads.getDownloadableFiles();
     assertThat(downloadableFiles).contains("file_1.txt", "file_2.jpg");
 
     List<DownloadedFile> downloadedFiles = hasDownloads.getDownloadedFiles();
-    assertThat(downloadedFiles.stream().map(f -> f.getName()).collect(Collectors.toList()))
+    assertThat(downloadedFiles.stream().map(f -> f.getName()).collect(toList()))
         .contains("file_1.txt", "file_2.jpg");
 
     driver.quit();