package com.alibaba.druid.bvt.sql.schemaStat;

import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.parser.SQLParserUtils;
import com.alibaba.druid.sql.parser.SQLStatementParser;
import com.alibaba.druid.sql.repository.SchemaRepository;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
import com.alibaba.druid.util.JdbcConstants;
import junit.framework.TestCase;

public class SchemaStatTest17 extends TestCase {
    public void test_schemaStat() throws Exception {
        SchemaRepository repository = new SchemaRepository(JdbcConstants.MYSQL);

        String sql = "SELECT * FROM t WHERE f1 -1 < 3;";

        SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, JdbcConstants.MYSQL);
        SQLStatement stmt = parser.parseStatementList().get(0);

        SchemaStatVisitor statVisitor = SQLUtils.createSchemaStatVisitor(repository);
        stmt.accept(statVisitor);

        System.out.println("Tables : " + statVisitor.getTables());
        System.out.println(statVisitor.getColumns());
//        System.out.println(statVisitor.getGroupByColumns()); // group by
        System.out.println("relationships : " + statVisitor.getRelationships()); // group by
        System.out.println(statVisitor.getConditions());

        assertEquals(2, statVisitor.getColumns().size());
        assertEquals(1, statVisitor.getConditions().size());
        assertEquals(0, statVisitor.getFunctions().size());

        assertTrue(statVisitor.containsTable("t"));
        assertTrue(statVisitor.containsColumn("t", "f1"));
        assertEquals("t.f1 < 4", statVisitor.getConditions().get(0).toString());
    }
}
