Github user parthchandra commented on a diff in the pull request:
https://github.com/apache/drill/pull/831#discussion_r118098082
--- Diff:
exec/java-exec/src/test/java/org/apache/drill/exec/store/pcap/TestPcapDecoder.java
---
@@ -0,0 +1,230 @@
+/*
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.drill.exec.store.pcap;
+
+import com.google.common.io.Resources;
+import org.apache.drill.BaseTestQuery;
+import org.apache.drill.exec.store.pcap.decoder.Packet;
+import org.apache.drill.exec.store.pcap.decoder.PacketDecoder;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.BufferedInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class TestPcapDecoder extends BaseTestQuery {
+ private static File bigFile;
+
+ /**
+ * Creates an ephemeral file of about a GB in size
+ *
+ * @throws IOException If input file can't be read or output can't be
written.
+ */
+ @BeforeClass
+ public static void buildBigTcpFile() throws IOException {
+ bigFile = File.createTempFile("tcp", ".pcap");
+ bigFile.deleteOnExit();
+ boolean first = true;
+ System.out.printf("Building large test file\n");
+ try (DataOutputStream out = new DataOutputStream(new
FileOutputStream(bigFile))) {
+ for (int i = 0; i < 1000e6 / (29208 - 24) + 1; i++) {
+ // might be faster to keep this open and rewind each time, but
+ // that is hard to do with a resource, especially if it comes
+ // from the class path instead of files.
+ try (InputStream in =
Resources.getResource("store/pcap/tcp-2.pcap").openStream()) {
+ ConcatPcap.copy(first, in, out);
+ }
+ first = false;
+ }
+ System.out.printf("Created file is %.1f MB\n", bigFile.length() /
1e6);
--- End diff --
Can we not use System.out in a test? We're trying to get the output from a
full build to be smaller.
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