third_party/WebKit/LayoutTests/storage/websql/hash-change-with-xhr.js

   1 var DB_UPDATE_INTERVAL = 100;
   2 var SEND_XHR_INTERVAL = 100;
   3 var BACK_INTERVAL = 100;
   4 var CREATE_HEALTH_TABLE = 'CREATE TABLE IF NOT EXISTS health (key VARCHAR(16) PRIMARY KEY);';
   5 var UPDATE_DATA = 'REPLACE INTO health VALUES("health-check-key");';
   6
   7 var db = openDatabaseWithSuffix('bug25710', '1.0', 'LayoutTest for bug 25710', 102400);
   8 var backIterations;
   9 var xhrFctIntervalId;
  10 var backFctIntervalId;
  11 var successCheckIntervalId;
  12 var dbFctIntervalId;
  13 var successes;
  14 var databaseUpdates;
  15 var stoppedIntervals;
  16
  17 function stopIntervals()
  18 {
  19     stoppedIntervals = true;
  20     clearInterval(dbFctIntervalId);
  21     clearInterval(xhrFctIntervalId);
  22     clearInterval(backFctIntervalId);
  23 }
  24
  25 function stopTest(message)
  26 {
  27     if (!stoppedIntervals)
  28         stopIntervals();
  29
  30     log(message);
  31
  32     if (window.testRunner)
  33         testRunner.notifyDone();
  34 }
  35
  36 function updateDatabase()
  37 {
  38     databaseUpdates++;
  39     db.transaction(function(transaction) {
  40         transaction.executeSql(UPDATE_DATA, [], function() {}, errorHandler);
  41     }, errorHandler, function() {
  42         successes++;
  43     });
  44 }
  45
  46 function checkForSuccess()
  47 {
  48     if (successes == databaseUpdates) {
  49         stopTest('Test Complete, SUCCESS');
  50         clearInterval(successCheckIntervalId);
  51     }
  52 }
  53
  54 function errorHandler(tx, error)
  55 {
  56     log('DB error, code: ' + error.code + ', msg: ' + error.message);
  57     stopTest('Test Complete, FAILED');
  58 }
  59
  60 function sendXhr()
  61 {
  62     xhr = new XMLHttpRequest();
  63     xhr.open('GET', location.href, true);
  64     xhr.send('');
  65 }
  66
  67 function invokeBack()
  68 {
  69     backIterations--;
  70     if (backIterations) {
  71         history.back();
  72     } else {
  73         stopIntervals();
  74         // Allow a little time for all the database transactions to complete now we've stopped making them.
  75         successCheckIntervalId = setInterval(checkForSuccess, 250);
  76         // If we don't finish before this time, then we consider the test failed.
  77         setTimeout(function() { stopTest('Timed out waiting for transactions to complete. FAILED'); }, 20000);
  78
  79     }
  80 }
  81
  82 function runTest()
  83 {
  84     // Location changes need to happen outside the onload handler to generate history entries.
  85     setTimeout(runTestsInner, 0);
  86 }
  87
  88 function runTestsInner()
  89 {
  90     backIterations = 10;
  91     consecutiveFailures = 0;
  92     successes = 0;
  93     databaseUpdates = 0;
  94     stoppedIntervals = false;
  95
  96     // Create some hashes so we can call history.back().
  97     log('Changing the hash to create history entries.');
  98     for (var i = 0; i < backIterations; i++) {
  99         setLocationHash(i);
 100     }
 101
 102     // Init the database.
 103     db.transaction(function(transaction) {
 104         transaction.executeSql(CREATE_HEALTH_TABLE, [], function() {}, errorHandler);
 105     }, errorHandler, function() {
 106         // Give a little for the database to 'warm up' before making xhr requests
 107         // and calling history.back().
 108         setTimeout(function() {
 109             log('Db is warmed up');
 110
 111             // NOTE: If we don't make any xhr requests, then the test
 112             // successfully passes (comment this line out).
 113             xhrFctIntervalId = setInterval(sendXhr, SEND_XHR_INTERVAL);
 114             backFctIntervalId = setInterval(invokeBack, BACK_INTERVAL);
 115             dbFctIntervalId = setInterval(updateDatabase, DB_UPDATE_INTERVAL);
 116         }, 500);
 117     });
 118 }