Fix test

Signed-off-by: Bernát Gábor <gaborjbernat@gmail.com>

Author: gaborbernat

opengrok-indexer/src/test/java/org/opengrok/indexer/search/SearchEngineTest.java

@@ -24,6 +24,8 @@
 package org.opengrok.indexer.search;
 
 import java.io.File;
+import java.net.URL;
+import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -59,7 +61,9 @@ class SearchEngineTest {
     @BeforeAll
     static void setUpClass() throws Exception {
         repository = new TestRepository();
-        repository.create(HistoryGuru.class.getResource("/repositories"));
+        URL url = HistoryGuru.class.getResource("/repositories");
+        repository.createEmpty();
+        repository.copyDirectoryWithUniqueModifiedTime(Path.of(url.toURI()), Path.of(repository.getSourceRoot()));
 
         RuntimeEnvironment env = RuntimeEnvironment.getInstance();
         env.setSourceRoot(repository.getSourceRoot());

opengrok-indexer/src/test/java/org/opengrok/indexer/util/TestRepository.java

@@ -112,6 +112,35 @@ public void create(@NotNull final URL url) throws IOException, URISyntaxExceptio
      * @throws IOException on error
      */
     public void copyDirectory(Path src, Path dest) throws IOException {
+        try (Stream<Path> stream = Files.walk(src)) {
+            stream.forEach(sourceFile -> {
+                if (sourceFile.equals(src)) {
+                    return;
+                }
+                try {
+                    Path destRelativePath = getDestinationRelativePath(src, sourceFile);
+                    Path destPath = dest.resolve(destRelativePath);
+                    if (Files.isDirectory(sourceFile)) {
+                        if (!Files.exists(destPath)) {
+                            Files.createDirectory(destPath);
+                        }
+                        return;
+                    }
+                    Files.copy(sourceFile, destPath, REPLACE_EXISTING, COPY_ATTRIBUTES);
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+            });
+        }
+    }
+
+    /**
+     * Assumes the destination directory exists.
+     * @param src source directory
+     * @param dest destination directory
+     * @throws IOException on error
+     */
+    public void copyDirectoryWithUniqueModifiedTime(Path src, Path dest) throws IOException {
         // Create a deterministic order of paths for creation time, so last modified time indexing is stable in tests
         // note we cannot use Files.copy(sourceFile, destPath, REPLACE_EXISTING, COPY_ATTRIBUTES)
         // as the original creation time is the user checkout and not different accross files