Create XML dataset with the same table name as initial data set in DBUnit? - unit-testing

Question

I'm trying to create an initial DB state in DB Unit like this...
public function getDataSet() {
$primary = new \PHPUnit\DbUnit\DataSet\CompositeDataSet();
$fixturePaths = [
"test/Seeds/Upc/DB/UpcSelect.xml",
"test/Seeds/Generic/DB/ProductUpcSelect.xml"
];
foreach($fixturePaths as $fixturePath) {
$dataSet = $this->createXmlDataSet($fixturePath);
$primary->addDataSet($dataSet);
}
return $primary;
}
Then after my query I'm attempting to call this user-defined function...
protected function compareDatabase(String $seedPath, String $table) {
$expected = $this->createFlatXmlDataSet($seedPath)->getTable($table);
$result = $this->getConnection()->createQueryTable($table, "SELECT * FROM $table");
$this->assertTablesEqual($expected, $result);
}
The idea here is that I have an initial DB state, run my query, then compare the actual table state with the XML data set representing what I expect the table to look like. This process is described in PHPUnit's documentation for DBUnit but I keep having an exception thrown...
PHPUnit\DbUnit\InvalidArgumentException: There is already a table named upc with different table definition
Test example...
public function testDeleteByUpc() {
$mapper = new UpcMapper($this->getPdo());
$mapper->deleteByUpc("someUpcCode1");
$this->compareDatabase("test/Seeds/Upc/DB/UpcAfterDelete.xml", 'upc');
}
I seem to be following the docs...how is this supposed to be done?

Answer 1

This was actually unrelated to creating a second XML Dataset. This exception was thrown because the two fixtures I loaded in my getDataSet() method both had table definitions for upc.