silverstripe-framework/tests/model/DatabaseTest.php

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<?php
/**
* @package framework
* @subpackage Testing
*/
class DatabaseTest extends SapphireTest {
protected $extraDataObjects = array(
'DatabaseTest_MyObject',
);
protected $usesDatabase = true;
public function testDontRequireField() {
$conn = DB::getConn();
$this->assertArrayHasKey(
'MyField',
$conn->fieldList('DatabaseTest_MyObject')
);
$conn->dontRequireField('DatabaseTest_MyObject', 'MyField');
$this->assertArrayHasKey(
'_obsolete_MyField',
$conn->fieldList('DatabaseTest_MyObject'),
'Field is renamed to _obsolete_<fieldname> through dontRequireField()'
);
$this->resetDBSchema(true);
}
public function testRenameField() {
$conn = DB::getConn();
$conn->clearCachedFieldlist();
$conn->renameField('DatabaseTest_MyObject', 'MyField', 'MyRenamedField');
$this->assertArrayHasKey(
'MyRenamedField',
$conn->fieldList('DatabaseTest_MyObject'),
'New fieldname is set through renameField()'
);
$this->assertArrayNotHasKey(
'MyField',
$conn->fieldList('DatabaseTest_MyObject'),
'Old fieldname isnt preserved through renameField()'
);
$this->resetDBSchema(true);
}
public function testMySQLCreateTableOptions() {
if(DB::getConn() instanceof MySQLDatabase) {
$ret = DB::query(sprintf(
'SHOW TABLE STATUS WHERE "Name" = \'%s\'',
'DatabaseTest_MyObject'
))->first();
$this->assertEquals($ret['Engine'],'InnoDB',
"MySQLDatabase tables can be changed to InnoDB through DataObject::\$create_table_options"
);
}
}
public function testSchemaUpdateChecking() {
$db = DB::getConn();
// Initially, no schema changes necessary
$db->beginSchemaUpdate();
$this->assertFalse($db->doesSchemaNeedUpdating());
// If we make a change, then the schema will need updating
$db->transCreateTable("TestTable");
$this->assertTrue($db->doesSchemaNeedUpdating());
// If we make cancel the change, then schema updates are no longer necessary
$db->cancelSchemaUpdate();
$this->assertFalse($db->doesSchemaNeedUpdating());
}
public function testHasTable() {
$this->assertTrue(DB::getConn()->hasTable('DatabaseTest_MyObject'));
$this->assertFalse(DB::getConn()->hasTable('asdfasdfasdf'));
}
public function testGetAndReleaseLock() {
$db = DB::getConn();
if(!$db->supportsLocks()) {
return $this->markTestSkipped('Tested database doesn\'t support application locks');
}
$this->assertTrue($db->getLock('DatabaseTest'),
'Can aquire lock');
// $this->assertFalse($db->getLock('DatabaseTest'), 'Can\'t repeatedly aquire the same lock');
$this->assertTrue($db->getLock('DatabaseTest'),
'The same lock can be aquired multiple times in the same connection');
$this->assertTrue($db->getLock('DatabaseTestOtherLock'),
'Can aquire different lock');
$db->releaseLock('DatabaseTestOtherLock');
// Release potentially stacked locks from previous getLock() invocations
$db->releaseLock('DatabaseTest');
$db->releaseLock('DatabaseTest');
$this->assertTrue($db->getLock('DatabaseTest'),
'Can aquire lock after releasing it');
$db->releaseLock('DatabaseTest');
}
public function testCanLock() {
$db = DB::getConn();
if(!$db->supportsLocks()) {
return $this->markTestSkipped('Database doesn\'t support locks');
}
if($db instanceof MSSQLDatabase) {
return $this->markTestSkipped('MSSQLDatabase doesn\'t support inspecting locks');
}
$this->assertTrue($db->canLock('DatabaseTest'), 'Can lock before first aquiring one');
$db->getLock('DatabaseTest');
$this->assertFalse($db->canLock('DatabaseTest'), 'Can\'t lock after aquiring one');
$db->releaseLock('DatabaseTest');
$this->assertTrue($db->canLock('DatabaseTest'), 'Can lock again after releasing it');
}
}
class DatabaseTest_MyObject extends DataObject implements TestOnly {
static $create_table_options = array('MySQLDatabase' => 'ENGINE=InnoDB');
static $db = array(
'MyField' => 'Varchar'
);
}