/*
* Copyright 2016-2017 the original author or authors.
*
* 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 org.springframework.data.cassandra.repository.query;
import static org.assertj.core.api.Assertions.*;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.springframework.data.cassandra.repository.query.ExpressionEvaluatingParameterBinder.ParameterBinding;
import org.springframework.data.cassandra.repository.query.StringBasedQuery.ParameterBindingParser;
/**
* Unit tests for {@link ParameterBindingParser}.
*
* @author Mark Paluch
*/
public class ParameterBindingParserUnitTests {
@Test // DATACASS-117
public void parseWithoutParameters() {
String query = "SELECT * FROM hello_world";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo(query);
assertThat(bindings).isEmpty();
}
@Test // DATACASS-117
public void parseWithStaticParameters() {
String query = "SELECT * FROM hello_world WHERE a = 1 AND b = {'list'} AND c = {'key':'value'}";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo(query);
assertThat(bindings).isEmpty();
}
@Test // DATACASS-117
public void parseWithPositionalParameters() {
String query = "SELECT * FROM hello_world WHERE a = ?0 and b = ?13";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo("SELECT * FROM hello_world WHERE a = ?_param_? and b = ?_param_?");
assertThat(bindings).hasSize(2);
assertThat(bindings.get(0).getParameterIndex()).isEqualTo(0);
assertThat(bindings.get(1).getParameterIndex()).isEqualTo(13);
}
@Test // DATACASS-117
public void parseWithNamedParameters() {
String query = "SELECT * FROM hello_world WHERE a = :hello and b = :world";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo("SELECT * FROM hello_world WHERE a = ?_param_? and b = ?_param_?");
assertThat(bindings).hasSize(2);
}
@Test // DATACASS-117
public void parseWithIndexExpressionParameters() {
String query = "SELECT * FROM hello_world WHERE a = ?#{[0]} and b = ?#{[2]}";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo("SELECT * FROM hello_world WHERE a = ?_param_? and b = ?_param_?");
assertThat(bindings).hasSize(2);
}
@Test // DATACASS-117
public void parseWithNameExpressionParameters() {
String query = "SELECT * FROM hello_world WHERE a = :#{#a} and b = :#{#b}";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo("SELECT * FROM hello_world WHERE a = ?_param_? and b = ?_param_?");
assertThat(bindings).hasSize(2);
}
@Test // DATACASS-117
public void parseWithMixedParameters() {
String query = "SELECT * FROM hello_world WHERE (a = ?1 and b = :name) and c = (:#{#a}) and (d = ?#{[1]})";
List<ParameterBinding> bindings = new ArrayList<>();
String transformed = ParameterBindingParser.INSTANCE.parseAndCollectParameterBindingsFromQueryIntoBindings(query,
bindings);
assertThat(transformed).isEqualTo(
"SELECT * FROM hello_world WHERE (a = ?_param_? and b = ?_param_?) and c = (?_param_?) and (d = ?_param_?)");
assertThat(bindings).hasSize(4);
}
}