I’ve previously put up code that can be used in RFT to wait for data to appear in a table. What follows is a similar method, but instead of waiting for data, it waits for an exact number of rows to be present in a table. It’s useful if you are expecting a row to disappear from a table after processing the row, or something like that…

To use the method, paste it into whatever class deals with tables (a class called something like “TableManager”), and then call the method statically passing in the table and the expected number of rows as parameters.

E.g.
TableManager.waitForParticularNumberOfRows(tblAccounts(), 4);

That line of code will make the test wait for the default waiting time (same as is used for waitForExistence), polling the tblAccounts table to see if it has 4 rows yet. If it does, the script continues. If by the end of the waiting period the row count still isn’t 4, an exception is thrown (again, just like waitForExistence).

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public static void waitForParticularNumberOfRows(GuiSubitemTestObject tblTargetTable, int iNumberOfRows) throws Exception
{
//get the waitForExistence values
Double dMaxWaitTime = (Double)getOption(IOptionName.MAXIMUM_WAIT_FOR_EXISTENCE);
Double dTimeBtwnRetry = (Double)getOption(IOptionName.WAIT_FOR_EXISTENCE_DELAY_BETWEEN_RETRIES);
int iMaxWaitForExistenceTime = dMaxWaitTime.intValue();
int iTimeToWaitBetweenRetries = dTimeBtwnRetry.intValue();

//work out how many times we’re going to check
int iNumberOfTimesToCheck = iMaxWaitForExistenceTime / iTimeToWaitBetweenRetries;

//loop iNumberOfTimesToCheck number of times checking for a particular
//number of rows
for(int iCheckCounter = 0; iCheckCounter < iNumberOfTimesToCheck; iCheckCounter++)
{
//get the contents of the table
ITestDataTable itdt = (ITestDataTable)tblTargetTable.getTestData(“contents”);

//if the number of rows doesn’t match what you want…
if(itdt.getRowCount() != iNumberOfRows)
{
//…sleep…
sleep(iTimeToWaitBetweenRetries);
}
else
{
//If we get here it’s because the table contains the particular
//number of rows that you’re after…
//It’s time to escape!
return;
}
}

throw new Exception(“Timed out waiting for correct number of rows”);
}
As always, any improvements are welcome!