/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* Licensed 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 eu.stratosphere.types.parser;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import eu.stratosphere.types.StringValue;
import eu.stratosphere.types.Value;
public class VarLengthStringParserTest {
public VarLengthStringParser parser = new VarLengthStringParser();
@Test
public void testGetValue() {
Value v = parser.createValue();
assertTrue(v instanceof StringValue);
}
@Test
public void testParseValidUnquotedStrings() {
// check valid strings with out whitespaces and trailing delimiter
byte[] recBytes = "abcdefgh|i|jklmno|".getBytes();
StringValue s = new StringValue();
int startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 9);
assertTrue(s.getValue().equals("abcdefgh"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 11);
assertTrue(s.getValue().equals("i"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 18);
assertTrue(s.getValue().equals("jklmno"));
// check single field not terminated
recBytes = "abcde".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 5);
assertTrue(s.getValue().equals("abcde"));
// check last field not terminated
recBytes = "abcde|fg".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 6);
assertTrue(s.getValue().equals("abcde"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 8);
assertTrue(s.getValue().equals("fg"));
}
@Test
public void testParseValidQuotedStringsWithoutWhitespaces() {
// check valid strings with out whitespaces and trailing delimiter
byte[] recBytes = "\"abcdefgh\"|\"i\"|\"jklmno\"|".getBytes();
StringValue s = new StringValue();
int startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 11);
assertTrue(s.getValue().equals("abcdefgh"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 15);
assertTrue(s.getValue().equals("i"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 24);
assertTrue(s.getValue().equals("jklmno"));
// check single field not terminated
recBytes = "\"abcde\"".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 7);
assertTrue(s.getValue().equals("abcde"));
// check last field not terminated
recBytes = "\"abcde\"|\"fg\"".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 8);
assertTrue(s.getValue().equals("abcde"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 12);
assertTrue(s.getValue().equals("fg"));
// check delimiter in quotes
recBytes = "\"abcde|fg\"|\"hij|kl|mn|op\"|".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 11);
assertTrue(s.getValue().equals("abcde|fg"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 26);
assertTrue(s.getValue().equals("hij|kl|mn|op"));
// check delimiter in quotes last field not terminated
recBytes = "\"abcde|fg\"|\"hij|kl|mn|op\"".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 11);
assertTrue(s.getValue().equals("abcde|fg"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 25);
assertTrue(s.getValue().equals("hij|kl|mn|op"));
}
@Test
public void testParseValidQuotedStringsWithWhitespaces() {
// check valid strings with out whitespaces and trailing delimiter
byte[] recBytes = " \"abcdefgh\"| \"i\"\t\t\t|\t \t\"jklmno\" |".getBytes();
StringValue s = new StringValue();
int startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 13);
assertTrue(s.getValue().equals("abcdefgh"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 25);
assertTrue(s.getValue().equals("i"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 39);
assertTrue(s.getValue().equals("jklmno"));
// check valid strings with out whitespaces without trailing delimiter
recBytes = " \"abcdefgh\"| \"i\"\t\t\t|\t \t\"jklmno\" ".getBytes();
s = new StringValue();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 13);
assertTrue(s.getValue().equals("abcdefgh"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 25);
assertTrue(s.getValue().equals("i"));
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 38);
assertTrue(s.getValue().equals("jklmno"));
// check single field not terminated
recBytes = " \t\"abcde\"\t\t \t ".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 16);
assertTrue(s.getValue().equals("abcde"));
// check single field terminated
recBytes = " \t\"abcde\"\t\t \t |".getBytes();
startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos == 17);
assertTrue(s.getValue().equals("abcde"));
}
@Test
public void testParseInvalidQuotedStrings() {
// check valid strings with out whitespaces and trailing delimiter
byte[] recBytes = " \"abcdefgh\" gh | \"i\"\t\t\t|\t \t\"jklmno\" |".getBytes();
StringValue s = new StringValue();
int startPos = 0;
startPos = parser.parseField(recBytes, startPos, recBytes.length, '|', s);
assertTrue(startPos < 0);
}
}