[HUDI-2077] Fix TestHoodieDeltaStreamerWithMultiWriter (#3849)

Remove the logic of using deltastreamer to prep test table. Use fixture (compressed test table) instead.

hudi-common/src/test/java/org/apache/hudi/common/testutils/FixtureUtils.java

@@ -0,0 +1,81 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hudi.common.testutils;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.nio.file.Path;
+import java.util.Objects;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+public final class FixtureUtils {
+
+  public static Path prepareFixtureTable(URL fixtureResource, Path basePath) throws IOException {
+    File zippedFixtureTable = new File(fixtureResource.getFile());
+    try (ZipInputStream zis = new ZipInputStream(new FileInputStream(zippedFixtureTable))) {
+      byte[] buffer = new byte[1024];
+      ZipEntry zipEntry = zis.getNextEntry();
+      Path tableBasePath = basePath.resolve(Objects.requireNonNull(zipEntry).getName()
+          .replaceAll(File.separator + "$", ""));
+      while (zipEntry != null) {
+        File newFile = newFile(basePath.toFile(), zipEntry);
+        if (zipEntry.isDirectory()) {
+          if (!newFile.isDirectory() && !newFile.mkdirs()) {
+            throw new IOException("Failed to create directory " + newFile);
+          }
+        } else {
+          // fix for Windows-created archives
+          File parent = newFile.getParentFile();
+          if (!parent.isDirectory() && !parent.mkdirs()) {
+            throw new IOException("Failed to create directory " + parent);
+          }
+
+          // write file content
+          try (FileOutputStream fos = new FileOutputStream(newFile)) {
+            int len;
+            while ((len = zis.read(buffer)) > 0) {
+              fos.write(buffer, 0, len);
+            }
+          }
+        }
+        zipEntry = zis.getNextEntry();
+      }
+      zis.closeEntry();
+      return tableBasePath;
+    }
+  }
+
+  public static File newFile(File destinationDir, ZipEntry zipEntry) throws IOException {
+    File destFile = new File(destinationDir, zipEntry.getName());
+
+    String destDirPath = destinationDir.getCanonicalPath();
+    String destFilePath = destFile.getCanonicalPath();
+
+    if (!destFilePath.startsWith(destDirPath + File.separator)) {
+      throw new IOException("Entry is outside of the target dir: " + zipEntry.getName());
+    }
+
+    return destFile;
+  }
+}

hudi-common/src/test/java/org/apache/hudi/common/testutils/HoodieTestDataGenerator.java

@@ -160,6 +160,7 @@ public class HoodieTestDataGenerator {
     this.existingKeysBySchema = new HashMap<>();
     existingKeysBySchema.put(TRIP_EXAMPLE_SCHEMA, keyPartitionMap);
     numKeysBySchema = new HashMap<>();
+    numKeysBySchema.put(TRIP_EXAMPLE_SCHEMA, keyPartitionMap.size());
   }
 
   /**
@@ -844,8 +845,8 @@ public class HoodieTestDataGenerator {
 
   public static class KeyPartition implements Serializable {
 
-    HoodieKey key;
-    String partitionPath;
+    public HoodieKey key;
+    public String partitionPath;
   }
 
   public void close() {