content: package com.alibaba.druid.bvt.sql.presto;
  
  import com.alibaba.druid.DbType;
  import com.alibaba.druid.sql.ast.SQLStatement;
  import com.alibaba.druid.sql.parser.SQLParserUtils;
  import com.alibaba.druid.sql.parser.SQLStatementParser;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  
  public class PrestoAlterFunction_0 {
      @Test
      public void test_alter_function_called() {
          String sql = "ALTER FUNCTION prod.default.tan(double)\n" +
                  "CALLED ON NULL INPUT";
  
          SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, DbType.presto);
          SQLStatement stmt = parser.parseStatement();
  
          assertEquals("ALTER FUNCTION prod.default.tan(double) CALLED ON NULL INPUT", stmt.toString());
      }
  
      @Test
      public void test_alter_function_returns() {
          String sql = "ALTER FUNCTION prod.default.tan\n" +
                  "CALLED ON NULL INPUT";
  
          SQLStatementParser parser = SQLParserUtils.createSQLStatementParser(sql, DbType.presto);
          SQLStatement stmt = parser.parseStatement();
  
          assertEquals("ALTER FUNCTION prod.default.tan CALLED ON NULL INPUT", stmt.toString());
      }
  }
  