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ParserTest.java
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ParserTest.java
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/*
* 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.rocketmq.filter;
import org.apache.rocketmq.filter.expression.Expression;
import org.apache.rocketmq.filter.expression.MQFilterException;
import org.apache.rocketmq.filter.parser.SelectorParser;
import org.junit.Test;
import java.util.Arrays;
import static org.assertj.core.api.Assertions.assertThat;
public class ParserTest {
private static String andExpression = "a=3 and b<>4 And c>5 AND d<=4";
private static String andExpressionHasBlank = "a=3 and b<>4 And c>5 AND d<=4";
private static String orExpression = "a=3 or b<>4 Or c>5 OR d<=4";
private static String inExpression = "a in ('3', '4', '5')";
private static String notInExpression = "(a not in ('6', '4', '5')) or (b in ('3', '4', '5'))";
private static String betweenExpression = "(a between 2 and 10) AND (b not between 6 and 9)";
private static String equalNullExpression = "a is null";
private static String notEqualNullExpression = "a is not null";
private static String nowExpression = "a <= now";
private static String invalidExpression = "a and between 2 and 10";
private static String illegalBetween = " a between 10 and 0";
@Test
public void testParse_valid() {
for (String expr : Arrays.asList(
andExpression, orExpression, inExpression, notInExpression, betweenExpression,
equalNullExpression, notEqualNullExpression, nowExpression
)) {
try {
Expression expression = SelectorParser.parse(expr);
assertThat(expression).isNotNull();
} catch (MQFilterException e) {
e.printStackTrace();
assertThat(Boolean.FALSE).isTrue();
}
}
}
@Test
public void testParse_invalid() {
try {
SelectorParser.parse(invalidExpression);
assertThat(Boolean.TRUE).isFalse();
} catch (MQFilterException e) {
}
}
@Test
public void testParse_decimalOverFlow() {
try {
String str = "100000000000000000000000";
SelectorParser.parse("a > " + str);
assertThat(Boolean.TRUE).isFalse();
} catch (Exception e) {
}
}
@Test
public void testParse_floatOverFlow() {
try {
StringBuilder sb = new StringBuilder(210000);
sb.append("1");
for (int i = 0; i < 2048; i ++) {
sb.append("111111111111111111111111111111111111111111111111111");
}
sb.append(".");
for (int i = 0; i < 2048; i ++) {
sb.append("111111111111111111111111111111111111111111111111111");
}
String str = sb.toString();
SelectorParser.parse("a > " + str);
assertThat(Boolean.TRUE).isFalse();
} catch (Exception e) {
}
}
@Test
public void testParse_illegalBetween() {
try {
SelectorParser.parse(illegalBetween);
assertThat(Boolean.TRUE).isFalse();
} catch (Exception e) {
}
}
@Test
public void testEquals() {
try {
Expression expr1 = SelectorParser.parse(andExpression);
Expression expr2 = SelectorParser.parse(andExpressionHasBlank);
Expression expr3 = SelectorParser.parse(orExpression);
assertThat(expr1).isEqualTo(expr2);
assertThat(expr1).isNotEqualTo(expr3);
} catch (MQFilterException e) {
e.printStackTrace();
assertThat(Boolean.TRUE).isFalse();
}
}
}