UnicodeTest.java

package org.mariadb.jdbc;

import org.junit.BeforeClass;
import org.junit.Test;

import java.sql.*;

import static org.junit.Assert.assertEquals;


public class UnicodeTest extends BaseTest {
    /**
     * Initialisation.
     *
     * @throws SQLException exception
     */
    @BeforeClass()
    public static void initClass() throws SQLException {
        createTable("unicode_test", "id int not null primary key auto_increment, test_text varchar(100)",
                "charset utf8");
        createTable("umlaut_test", "id varchar(100), test_text varchar(100), t int", "charset utf8");
        createTable("unicode_test2", "id int not null primary key auto_increment, test_text varchar(100)",
                "charset=utf8");
        createTable("unicode_test3", "id int not null primary key auto_increment, test_text varchar(100)",
                "charset utf8mb4");
    }

    @Test
    public void firstTest() throws SQLException {
        String jaString = "\u65e5\u672c\u8a9e\u6587\u5b57\u5217"; // hmm wonder what this means...
        Statement stmt = sharedConnection.createStatement();
        PreparedStatement ps = sharedConnection.prepareStatement("insert into unicode_test (test_text) values (?)");
        ps.setString(1, jaString);
        ps.executeUpdate();
        ResultSet rs = stmt.executeQuery("select test_text from unicode_test");
        assertEquals(true, rs.next());
        assertEquals(jaString, rs.getString(1));
    }

    @Test
    public void testGermanUmlauts() throws SQLException {
        String query = "insert into umlaut_test values('tax-1273608028038--5546415852995205209-13', "
                + "'MwSt. 7% Bücher & Lebensmittel', 7)";
        Statement stmt = sharedConnection.createStatement();
        stmt.executeUpdate(query);

        ResultSet rs = stmt.executeQuery("select * from umlaut_test");
        assertEquals(true, rs.next());
        assertEquals("MwSt. 7% Bücher & Lebensmittel", rs.getString(2));
        assertEquals(false, rs.next());
    }

    @Test
    public void mysqlTest() throws SQLException {
        String jaString = "\u65e5\u672c\u8a9e\u6587\u5b57\u5217"; // hmm wonder what this means...
        Statement stmt = sharedConnection.createStatement();
        PreparedStatement ps = sharedConnection.prepareStatement("insert into unicode_test2 (test_text) values (?)");
        ps.setString(1, jaString);
        ps.executeUpdate();
        ResultSet rs = stmt.executeQuery("select test_text from unicode_test2");
        assertEquals(true, rs.next());
        assertEquals(jaString, rs.getString(1));
    }

    @Test
    public void unicodeTests() throws SQLException {
        String unicodeString = "";
        unicodeString += "\uD83D\uDE0E"; // 😎 unicode 6 smiling face with sunglasses
        unicodeString += "\uD83C\uDF36"; // 🌶 unicode 7 hot pepper
        unicodeString += "\uD83C\uDFA4"; // 🎤 unicode 8 no microphones
        unicodeString += "\uD83E\uDD42"; // 🥂 unicode 9 clinking glasses

        //test binary protocol
        try (Connection connection = setConnection("")) {
            connection.createStatement().execute("SET NAMES utf8mb4");
            checkSendAndRetrieve(connection, unicodeString);
        }

        //test prepare text protocol
        try (Connection connection = setConnection("&rewriteBatchedStatements=true")) {
            connection.createStatement().execute("SET NAMES utf8mb4");
            checkSendAndRetrieve(connection, unicodeString);
        }

    }

    private void checkSendAndRetrieve(Connection connection, String unicodeString) throws SQLException {
        Statement stmt = connection.createStatement();
        PreparedStatement ps = connection.prepareStatement("insert into unicode_test3 (test_text) values (?)");
        ps.setString(1, unicodeString);
        ps.executeUpdate();
        ResultSet rs = stmt.executeQuery("select test_text from unicode_test3");
        assertEquals(true, rs.next());
        String returnString = rs.getString(1);
        assertEquals(unicodeString, returnString);
    }

}