/**
* @dataProvider providesSchemaFiles
* @param string $xml
*/
public function testZeroChangeOnSchemaMigrations($xml)
{
$xml = str_replace('*dbprefix*', $this->testPrefix, $xml);
$schemaFile = 'static://test_db_scheme';
file_put_contents($schemaFile, $xml);
// apply schema
$this->manager->createDbFromStructure($schemaFile);
$schemaReader = new MDB2SchemaReader($this->config, $this->connection->getDatabasePlatform());
$endSchema = $schemaReader->loadSchemaFromFile($schemaFile);
// get the diff
/** @var SchemaDiff $diff */
$migrator = $this->manager->getMigrator();
$diff = $this->invokePrivate($migrator, 'getDiff', [$endSchema, $this->connection]);
// no sql statement is expected
$sqls = $diff->toSql($this->connection->getDatabasePlatform());
$this->assertEquals([], $sqls);
}
/**
* remove all tables defined in a database structure xml file
*
* @param string $file the xml file describing the tables
*/
public function removeDBStructure($file)
{
$schemaReader = new MDB2SchemaReader(\OC_Config::getObject(), $this->conn->getDatabasePlatform());
$fromSchema = $schemaReader->loadSchemaFromFile($file);
$toSchema = clone $fromSchema;
/** @var $table \Doctrine\DBAL\Schema\Table */
foreach ($toSchema->getTables() as $table) {
$toSchema->dropTable($table->getName());
}
$comparator = new \Doctrine\DBAL\Schema\Comparator();
$schemaDiff = $comparator->compare($fromSchema, $toSchema);
$this->executeSchemaChange($schemaDiff);
}
