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JdbcBuilderTest.java
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JdbcBuilderTest.java
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/*
* Copyright 2018-2022 Pavel Ponec
*
* 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.ujorm.tools.jdbc;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.time.LocalDate;
import java.util.List;
import org.jetbrains.annotations.NotNull;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* Testing the JdbcBuillder class
* @author Pavel Ponec
*/
public class JdbcBuilderTest extends AbstractJdbcConnector {
/** Some testing date */
private final LocalDate someDate = LocalDate.parse("2018-09-12");
/** Test SQL SELECT of class JdbcBuillder. */
@Test
public void testSelect() {
System.out.println("SELECT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.id")
.column("t.name")
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.name", Sql.EQ, "Test")
.andCondition("t.created", Sql.GE, someDate)
;
String expResult1 = "SELECT t.id, t.name FROM employee t WHERE t.name = ? AND t.created >= ?";
String expResult2 = "SELECT t.id, t.name FROM employee t WHERE t.name = 'Test' AND t.created >= 2018-09-12";
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(2, sql.getArguments().length);
assertEquals("Test", sql.getArguments()[0]);
}
/** Test SQL INSERT of class JdbcBuillder. */
@Test
public void testInsert() {
System.out.println("INSERT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.INSERT_INTO)
.write("employee")
.write("(")
.columnInsert("id", 10)
.columnInsert("name", "A name")
.columnInsert("created", someDate)
.write(")")
;
String expResult1 = "INSERT INTO employee ( id, name, created ) VALUES ( ?, ?, ? )";
String expResult2 = "INSERT INTO employee ( id, name, created ) VALUES ( 10, 'A name', 2018-09-12 )";
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(3, sql.getArguments().length);
assertEquals(10, sql.getArguments()[0]);
}
/** Test SQL INSERT By SELECT */
@Test
public void testInsertBySelect() {
System.out.println("INSERT by SELECT");
JdbcBuilder select = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.id + 100")
.column("t.name")
.column("t.created")
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.id", Sql.LT, 100)
;
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.INSERT_INTO)
.write("employee")
.write("(")
.column("id")
.column("name")
.column("created")
.write(")")
.write(select)
;
String expResult1 = "INSERT INTO employee ( id, name, created ) SELECT t.id + 100, t.name, t.created FROM employee t WHERE t.id < ?";
String expResult2 = "INSERT INTO employee ( id, name, created ) SELECT t.id + 100, t.name, t.created FROM employee t WHERE t.id < 100";
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(1, sql.getArguments().length);
}
/** Test raw SQL INSERT of class JdbcBuillder for a better performace and general use. */
@Deprecated
@Test
public void testInsertRaw() {
System.out.println("INSERT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.INSERT_INTO)
.write("employee")
.write("(")
.column("id")
.column("name")
.column("created")
.write(")")
.write(Sql.VALUES)
.write("(")
.value(10)
.value("A test")
.value(someDate)
.write(")");
String expResult1 = "INSERT INTO employee ( id, name, created ) VALUES ( ?, ?, ? )";
String expResult2 = "INSERT INTO employee ( id, name, created ) VALUES ( 10, 'A test', 2018-09-12 )";
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(3, sql.getArguments().length);
assertEquals(10, sql.getArguments()[0]);
}
/** Test SQL UPDATE of class JdbcBuillder. */
@Test
public void testUpdate() {
System.out.println("UPDATE");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.UPDATE)
.write("employee")
.write(Sql.SET)
.columnUpdate("name", "Test")
.columnUpdate("created", someDate)
.write(Sql.WHERE)
.andCondition("id", Sql.IN, 10, 20, 30)
.andCondition("created BETWEEN ? AND ?", Sql.UNDEFINED, someDate, someDate.plusMonths(1))
.andCondition("name", Sql.IS_NOT_NULL)
;
String expResult1 = "UPDATE employee"
+ " SET name = ?"
+ ", created = ?"
+ " WHERE id IN ( ?, ?, ? )"
+ " AND created BETWEEN ? AND ?"
+ " AND name IS NOT NULL";
String expResult2 = "UPDATE employee"
+ " SET name = 'Test'"
+ ", created = 2018-09-12"
+ " WHERE id IN ( 10, 20, 30 )"
+ " AND created BETWEEN 2018-09-12 AND 2018-10-12"
+ " AND name IS NOT NULL";
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(7, sql.getArguments().length);
assertEquals("Test", sql.getArguments()[0]);
assertEquals(someDate, sql.getArguments()[1]);
assertEquals(10, sql.getArguments()[2]);
assertEquals(20, sql.getArguments()[3]);
}
/** Test SQL UPDATE of class JdbcBuillder. */
@Test
public void testUpdateBySelect() {
System.out.println("UPDATE by SELECT");
JdbcBuilder select = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.id")
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.created", Sql.GE, someDate)
;
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.UPDATE)
.write("employee")
.write(Sql.SET)
.columnUpdate("name", "Test")
.columnUpdate("created", someDate.plusDays(11))
.write(Sql.WHERE)
.writeMany("id", Sql.IN, "(")
.write(select)
.write(")")
;
String expResult1 = "UPDATE employee"
+ " SET name = ?"
+ ", created = ?"
+ " WHERE id IN ("
+ " SELECT t.id FROM employee t WHERE t.created >= ?"
+ " )"
;
String expResult2 = "UPDATE employee"
+ " SET name = 'Test'"
+ ", created = 2018-09-23"
+ " WHERE id IN ("
+ " SELECT t.id FROM employee t WHERE t.created >= 2018-09-12"
+ " )"
;
assertEquals(expResult1, sql.getSql());
assertEquals(expResult2, sql.toString());
assertEquals(3, sql.getArguments().length);
}
@Test
public void testShowUsage() throws ClassNotFoundException, SQLException {
try (Connection dbConnection = createTable(createDbConnection())) {
showInsert(dbConnection);
showSelect_1(dbConnection);
showSelect_2(dbConnection);
showSelectForSingleValue(dbConnection);
showUpdate(dbConnection);
}
}
/** How to INSERT (no commit) */
public void showInsert(@NotNull Connection dbConnection) throws SQLException {
System.out.println("Show INSERT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.INSERT_INTO)
.write("employee")
.write("(")
.columnInsert("id", 10)
.columnInsert("name", "A name")
.columnInsert("created", someDate)
.write(")")
;
int count = sql.executeUpdate(dbConnection);
dbConnection.commit();
assertEquals(1, count);
}
/** How to SELECT a list */
public void showSelect_1(@NotNull Connection dbConnection) throws IllegalStateException, SQLException {
System.out.println("Show SELECT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.id")
.column("t.name")
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.name", Sql.EQ, "A name")
.andCondition("t.created", Sql.LE, someDate)
;
ResultSet tempRs = null;
for (ResultSet rs : sql.executeSelect(dbConnection)) {
int id = rs.getInt(1);
String name = rs.getString(2);
assertEquals(10, id);
assertEquals("A name", name);
tempRs = rs;
}
assertNotNull(tempRs);
assertTrue(tempRs.isClosed());
}
/** How to SELECT a list using a lambda expression */
public void showSelect_2(@NotNull Connection dbConnection) throws IllegalStateException, SQLException {
System.out.println("Show SELECT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.id")
.column("t.name") // unused column
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.name", Sql.EQ, "A name")
.andCondition("t.created", Sql.LE, someDate)
;
List<Integer> ids = sql.executeSelect(dbConnection, (rs) -> rs.getInt(1));
assertNotNull(ids);
assertFalse(ids.isEmpty());
}
/** How to SELECT single value */
public void showSelectForSingleValue(@NotNull Connection dbConnection) throws IllegalStateException, SQLException {
System.out.println("Show SELECT");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.SELECT)
.column("t.name")
.write(Sql.FROM)
.write("employee t")
.write(Sql.WHERE)
.andCondition("t.id", Sql.EQ, 10)
;
String name = sql.uniqueValue(String.class, dbConnection);
assertEquals("A name", name);
}
/** How to UPDATE single value (no commit) */
public void showUpdate(@NotNull Connection dbConnection) {
System.out.println("Show UPDATE");
JdbcBuilder sql = new JdbcBuilder()
.write(Sql.UPDATE)
.write("employee")
.write(Sql.SET)
.columnUpdate("created", someDate.plusDays(1))
.write(Sql.WHERE)
.andCondition("id", Sql.IN, 10, 20, 30)
.andCondition("created" + Sql.BETWEEN_X_AND_Y, null, someDate, someDate.plusMonths(1))
.andCondition("name", Sql.IS_NOT_NULL)
;
int count = sql.executeUpdate(dbConnection);
assertEquals(1, count);
}
/** Create new DB connection */
Connection createTable(Connection dbConnection) throws ClassNotFoundException, SQLException {
String sql = "CREATE TABLE employee"
+ "\n( id INTEGER PRIMARY KEY"
+ "\n, name VARCHAR(256)"
+ "\n, state VARCHAR(1)" // An unused column
+ "\n, created TIMESTAMP"
+ "\n)";
try (PreparedStatement ps = dbConnection.prepareStatement(sql)) {
ps.execute();
dbConnection.commit();
}
return dbConnection;
}
}