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package common;
import gudusoft.gsqlparser.EExpressionType;
import gudusoft.gsqlparser.nodes.*;
import junit.framework.TestCase;
import gudusoft.gsqlparser.TGSqlParser;
import gudusoft.gsqlparser.EDbVendor;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
public class testExpression extends TestCase {
public void testFlattenExpr(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "SELECT * from t where a>1 and b=1 or c=2";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getWhereClause().getCondition();
assertTrue(((TExpression)expr.getFlattedAndOrExprs().get(1)).getAndOrTokenBeforeExpr().toString().equalsIgnoreCase("and"));
assertTrue(((TExpression)expr.getFlattedAndOrExprs().get(2)).getAndOrTokenBeforeExpr().toString().equalsIgnoreCase("or")); ;
}
public void testCollate(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvmssql);
sqlparser.sqltext = "SELECT latincol COLLATE greek_ci_as";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TResultColumn column = select.getResultColumnList().getResultColumn(0);
TExpression expr2 = column.getExpr();
assertTrue(expr2.getRightOperand().toString().equalsIgnoreCase("greek_ci_as"));
}
public void testFunctionName(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT COUNT(*)";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TResultColumn column = select.getResultColumnList().getResultColumn(0);
TExpression expr2 = column.getExpr();
TFunctionCall func = expr2.getFunctionCall();
}
public void testNotEqual(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT COUNT(*)\n" +
"FROM orders\n" +
"WHERE A NOT = B;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TWhereClause where = select.getWhereClause();
TExpression expr = where.getCondition();
//System.out.println(expr.getComparisonOperator().toString());
assertTrue(expr.getComparisonOperator().toString().equalsIgnoreCase("NOT ="));
}
public void testIntervalExpr(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT (end_time - start_time) DAY(4,1) TO SECOND (2)\n" +
"FROM BillDateTime;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TResultColumn column = select.getResultColumnList().getResultColumn(0);
TExpression expr = column.getExpr();
//System.out.println(expr.getExpressionType());
assertTrue(expr.getExpressionType() == EExpressionType.interval_t);
sqlparser.sqltext = "SELECT (end_time - start_time) DAY\n" +
"FROM BillDateTime;";
assertTrue(sqlparser.parse() == 0);
select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
column = select.getResultColumnList().getResultColumn(0);
expr = column.getExpr();
//System.out.println(expr.getExpressionType());
assertTrue(expr.getExpressionType() == EExpressionType.interval_t );
sqlparser.sqltext = "SELECT (end_time - start_time) DAY1\n" +
"FROM BillDateTime;";
assertTrue(sqlparser.parse() == 0);
select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
column = select.getResultColumnList().getResultColumn(0);
expr = column.getExpr();
//System.out.println(expr.getExpressionType());
assertTrue(expr.getExpressionType() == EExpressionType.parenthesis_t);
}
public void testInList(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvteradata);
sqlparser.sqltext = "SELECT COUNT(*)\n" +
"FROM orders\n" +
"WHERE A in (1,2,3+4);";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TWhereClause where = select.getWhereClause();
TExpression expr = where.getCondition();
assertTrue(expr.getExpressionType() == EExpressionType.in_t);
assertTrue(expr.getRightOperand().getExpressionType() == EExpressionType.list_t);
TExpressionList expressionList = expr.getRightOperand().getExprList();
assertTrue(expressionList.getExpression(0).toString().equalsIgnoreCase("1"));
assertTrue(expressionList.getExpression(1).toString().equalsIgnoreCase("2"));
assertTrue(expressionList.getExpression(2).toString().equalsIgnoreCase("3+4"));
}
public void testExprSearchColumn(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvoracle);
sqlparser.sqltext = "SELECT name FROM tb1 Where length(trim(name)) = 13 and rownum = 1;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TWhereClause where = select.getWhereClause();
TExpression expr = where.getCondition();
TExpressionList expressionList = expr.searchColumn("name");
// System.out.println(expressionList.size());
}
public void testRemove1(){
TGSqlParser parser = new TGSqlParser(EDbVendor.dbvoracle);
TExpression expression = parser.parseExpression("columnA+(columnB*2)+columnC");
TExpressionList resultList = expression.searchColumn("columnB");
TExpression columnBExpr = resultList.getExpression(0);
columnBExpr.removeMe();
assertTrue(expression.toString().equalsIgnoreCase("columnA+(2)+columnC"));
expression = parser.parseExpression("columnA+(columnB*2)>columnC and columnD=columnE-9");
resultList = expression.searchColumn("columnA");
assertTrue(resultList.size() == 1);
TExpression columnAExpr = resultList.getExpression(0);
assertTrue(columnAExpr.getExpressionType() == EExpressionType.simple_object_name_t);
assertTrue(columnAExpr.toString().equalsIgnoreCase("columnA"));
columnAExpr.removeMe();
// System.out.println(expression.toString());
assertTrue(expression.toString().equalsIgnoreCase("(columnB*2)>columnC and columnD=columnE-9"));
parser.sqltext = "select *\n" +
"from table1 pal, table2 pualr, table3 pu\n" +
"WHERE (pal.application_location_id = pualr.application_location_id \n" +
" AND pu.jbp_uid = pualr.jbp_uid \n" +
" AND pu.username = 'USERID')";
int ret = parser.parse();
assertTrue(ret == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)parser.sqlstatements.get(0);
expression = selectSqlStatement.getWhereClause().getCondition();
resultList = expression.searchColumn("application_location_id");
assertTrue(resultList.size() == 2);
TExpression expression1 = resultList.getExpression(0);
assertTrue(expression1.getExpressionType() == EExpressionType.simple_object_name_t);
assertTrue(expression1.toString().equalsIgnoreCase("pal.application_location_id"));
expression1.removeMe();
// System.out.println(expression.toString());
assertTrue(expression.toString().equalsIgnoreCase("(pu.jbp_uid = pualr.jbp_uid \n" +
" AND pu.username = 'USERID')"));
}
public void testRemoveExprList(){
TGSqlParser parser = new TGSqlParser(EDbVendor.dbvoracle);
parser.sqltext = "select *\n" +
"from table1 pal, table2 pualr, table3 pu\n" +
"WHERE pal.application_location_id in (1,2,3,4)";
int ret = parser.parse();
assertTrue(ret == 0);
TSelectSqlStatement selectSqlStatement = (TSelectSqlStatement)parser.sqlstatements.get(0);
TExpression expression = selectSqlStatement.getWhereClause().getCondition();
assertTrue(expression.getRightOperand().getExpressionType() == EExpressionType.list_t);
TExpressionList expressionList = expression.getRightOperand().getExprList();
expressionList.removeItem(0);
//System.out.println(selectSqlStatement.toString());
assertTrue(selectSqlStatement.toString().equalsIgnoreCase("select *\n" +
"from table1 pal, table2 pualr, table3 pu\n" +
"WHERE pal.application_location_id in (2,3,4)"));
expression.getRightOperand().removeMe();
if (expression.getNodeStatus() == ENodeStatus.nsRemoved){
selectSqlStatement.setWhereClause(null);
}
//System.out.println(selectSqlStatement.toString());
assertTrue(selectSqlStatement.toString().trim().equalsIgnoreCase("select *\n" +
"from table1 pal, table2 pualr, table3 pu"));
}
}