Author: stack
Date: Wed May 25 20:41:34 2011
New Revision: 1127677
URL: http://svn.apache.org/viewvc?rev=1127677&view=rev
Log:
HBASE-3811 Allow adding attributes to Scan
Added:
hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestScan.java
Added: hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestScan.java
URL:
http://svn.apache.org/viewvc/hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestScan.java?rev=1127677&view=auto
==============================================================================
--- hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestScan.java
(added)
+++ hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestScan.java Wed
May 25 20:41:34 2011
@@ -0,0 +1,106 @@
+/**
+ * Copyright 2009 The Apache Software Foundation
+ *
+ * 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.hadoop.hbase.client;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataInputStream;
+import java.io.DataOutput;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.util.Arrays;
+
+import org.apache.hadoop.hbase.util.Bytes;
+import org.junit.Assert;
+import org.junit.Test;
+
+// TODO: cover more test cases
+public class TestScan {
+ @Test
+ public void testAttributesSerialization() throws IOException {
+ Scan scan = new Scan();
+ scan.setAttribute("attribute1", Bytes.toBytes("value1"));
+ scan.setAttribute("attribute2", Bytes.toBytes("value2"));
+ scan.setAttribute("attribute3", Bytes.toBytes("value3"));
+
+ ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+ DataOutput out = new DataOutputStream(byteArrayOutputStream);
+ scan.write(out);
+
+ Scan scan2 = new Scan();
+ Assert.assertTrue(scan2.getAttributesMap().isEmpty());
+
+ scan2.readFields(new DataInputStream(new
ByteArrayInputStream(byteArrayOutputStream.toByteArray())));
+
+ Assert.assertNull(scan2.getAttribute("absent"));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value1"),
scan2.getAttribute("attribute1")));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value2"),
scan2.getAttribute("attribute2")));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value3"),
scan2.getAttribute("attribute3")));
+ Assert.assertEquals(3, scan2.getAttributesMap().size());
+ }
+
+ @Test
+ public void testScanAttributes() {
+ Scan scan = new Scan();
+ Assert.assertTrue(scan.getAttributesMap().isEmpty());
+ Assert.assertNull(scan.getAttribute("absent"));
+
+ scan.setAttribute("absent", null);
+ Assert.assertTrue(scan.getAttributesMap().isEmpty());
+ Assert.assertNull(scan.getAttribute("absent"));
+
+ // adding attribute
+ scan.setAttribute("attribute1", Bytes.toBytes("value1"));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value1"),
scan.getAttribute("attribute1")));
+ Assert.assertEquals(1, scan.getAttributesMap().size());
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value1"),
scan.getAttributesMap().get("attribute1")));
+
+ // overriding attribute value
+ scan.setAttribute("attribute1", Bytes.toBytes("value12"));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value12"),
scan.getAttribute("attribute1")));
+ Assert.assertEquals(1, scan.getAttributesMap().size());
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value12"),
scan.getAttributesMap().get("attribute1")));
+
+ // adding another attribute
+ scan.setAttribute("attribute2", Bytes.toBytes("value2"));
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value2"),
scan.getAttribute("attribute2")));
+ Assert.assertEquals(2, scan.getAttributesMap().size());
+ Assert.assertTrue(Arrays.equals(Bytes.toBytes("value2"),
scan.getAttributesMap().get("attribute2")));
+
+ // removing attribute
+ scan.setAttribute("attribute2", null);
+ Assert.assertNull(scan.getAttribute("attribute2"));
+ Assert.assertEquals(1, scan.getAttributesMap().size());
+ Assert.assertNull(scan.getAttributesMap().get("attribute2"));
+
+ // removing non-existed attribute
+ scan.setAttribute("attribute2", null);
+ Assert.assertNull(scan.getAttribute("attribute2"));
+ Assert.assertEquals(1, scan.getAttributesMap().size());
+ Assert.assertNull(scan.getAttributesMap().get("attribute2"));
+
+ // removing another attribute
+ scan.setAttribute("attribute1", null);
+ Assert.assertNull(scan.getAttribute("attribute1"));
+ Assert.assertTrue(scan.getAttributesMap().isEmpty());
+ Assert.assertNull(scan.getAttributesMap().get("attribute1"));
+ }
+}
