ibm_db/test/test-blocking-issue210.js

IBM DB2 and IBM Informix bindings for node

var common = require("./common")
	, ibmdb = require("../")
	, pool = new ibmdb.Pool()
	, connectionString = common.connectionString
    , iszos = common.isZOS
    , assert = require("assert")
	, connections = []
	, connectCount = 2;

var startTime1, startTime2, totalTime1, totalTime2, dropTable = 0;
var elapsedTime = ibmdb.getElapsedTime;
var ret = pool.init(connectCount, connectionString); 
if(typeof ret === 'object') assert.equal(ret.message, undefined);

//moment().format("YYYY-MM-DD HH:mm:ss.SSS"));
console.log(elapsedTime(), "Started pool.open, populate a table MTAB1 of 2330 rows.");
pool.open(connectionString, function( err, conn) {
    try { conn.querySync("drop table mtab1");
          conn.querySync("drop table mtab2"); } catch(e) {};
    conn.querySync("create table mtab1(c1 varchar(30), c2 varchar(20))");
    conn.querySync("create table mtab2(c1 varchar(30), c2 varchar(20))");
    if (iszos) {
      // Db2 on z/OS does not support multi-row inserts
      conn.querySync("Insert into mtab1 values ('1', 'bimal')");
      conn.querySync("Insert into mtab1 values ('2', 'kumar')");
      conn.querySync("Insert into mtab1 values ('3', 'jha')");
      conn.querySync("Insert into mtab1 values ('4', 'kamal')");
      conn.querySync("Insert into mtab1 values ('5', 'ibm')");

      conn.querySync("Insert into mtab1 values ('1', 'bimal')");
      conn.querySync("Insert into mtab1 values ('2', 'kumar')");
      conn.querySync("Insert into mtab1 values ('3', 'jha')");
      conn.querySync("Insert into mtab1 values ('4', 'kamal')");
      conn.querySync("Insert into mtab1 values ('5', 'ibm')");
    } else {
      conn.querySync("Insert into mtab1 values ('1', 'bimal'),('2','kumar'),('3', 'jha'), ('4', 'kamal'), ('5', 'ibm')");
      conn.querySync("Insert into mtab1 values ('1', 'bimal'),('2','kumar'),('3', 'jha'), ('4', 'kamal'), ('5', 'ibm')");
    }
    for(var i = 0; i < 6 ; i++) {
      conn.querySync("insert into mtab2 (select * from mtab1)");
      conn.querySync("insert into mtab1 (select * from mtab2)");
      }
    conn.querySync("drop table mtab2");
    console.log(elapsedTime(), "Inserted rows in mtab1 = ", conn.querySync("select count(*) from mtab1")[0]['1']);
    conn.close(function(err){});
});

ibmdb.debug(true);
var q1time, q2time;
console.log(elapsedTime(), "Opening connection #1");
pool.open(connectionString, function (err, connection) {
        console.log(elapsedTime(), "Connection 1 opened. Start execution of Query1");
        startTime1 = new Date();
        connection.query("select * from mtab1", function(err, data) {
            if(err) console.log(err);
            totalTime1 = (new Date() - startTime1)/1000;
            q1time = parseInt(totalTime1%60);
            console.log(elapsedTime(), "Total execution time for Query1 = ", q1time, "sec."); 
            dropTable++;
            if(dropTable == 2) {
                if( q2time > 1 ) {
                    assert.equal(q1time >= 2 * q2time , false); // Do queries executed in sequence?
                }
                testLongTime(connection);
            }
        });
});
pool.open(connectionString, function (err, connection) {
        console.log(elapsedTime(), "Connection 2 opened. Start execution of Query2");
        startTime2 = new Date();
        connection.query("select c1, c2 from mtab1", function(err, data) {
            if(err) console.log(err);
            totalTime2 = (new Date() - startTime2)/1000;
            q2time = parseInt(totalTime2%60);
            console.log(elapsedTime(), "Total execution time for Query2 = ", q2time, "sec."); 
            dropTable++;
            if(dropTable == 2) {
                if( q1time > 1 ) {
                    assert.equal(q2time >= 2 * q1time, false); // Do queries executed in sequence?
                }
                testLongTime(connection);
            }
        });
});

// Test case for issue #230 - ? takes long time. Found a server issue.
var testLongTime = function(conn) {
    if (iszos) {
      // Db2 on z/OS does not support multi-row inserts
      conn.querySync("insert into mtab1 values ('330107196906080910', '330107196906080910')");
      conn.querySync("insert into mtab1 values ('330107196906080910', '330107196906080910')");
      conn.querySync("insert into mtab1 values ('330107196906080910', '')");
    } else {
      conn.querySync("insert into mtab1 values ('330107196906080910', '330107196906080910'), "+
                   "('330107196906080910', '330107196906080910'), ('330107196906080910', '')");

    }
    var query1 = "select c1, c2 from mtab1 where (c1 in (?, ?) or c2 in (?, ?) and (? is null or c2 = ?))";
    var query2 = "select c1, c2 from mtab1 where (c1 in ('330107196906080910', '330107196906080910') " +
                 "or c2 in ('330107196906080910', '330107196906080910') and ('' is null or c2 = ''))";
    var params = ['330107196906080910', '330107196906080910', '330107196906080910','330107196906080910', '', ''];
    startTime1 = new Date();
    conn.query(query1, params, function(err, rows) {
        if(err) console.log(err);
        else console.log(rows);
        totalTime1 = (new Date() - startTime1)/1000;
        console.log(elapsedTime(), "Total execution time for Query3 = ", totalTime1, "sec. **** <<==");
        startTime2 = new Date();
        conn.query(query2, function(err, rows) {
            if(err) console.log(err);
            else console.log(rows);
            totalTime2 = (new Date() - startTime2)/1000;
            console.log(elapsedTime(), "Total execution time for Query4 = ", totalTime2, "sec. **** <<==");

            // Clean up
            conn.querySync("drop table mtab1");
            ibmdb.debug(false);
            pool.close();
        });
    });
}
console.log(elapsedTime(), " **** All lines of test file executed, waiting for callback functions to finish. ");