SQLiteCollectionTest.php
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	<?php

	/**
	* _, __, _, _ __, _ _, _, _
	* / \ \|_) (_ \| \| \ \| /_\ \|\ \|
	* \ / \|_) , ) \| \|_/ \| \| \| \| \\|
	* ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
	*
	* Unit testing — SQLiteCollection class
	*
	* @package ObsidianWorkspaces
	* @subpackage Tests
	* @author Sébastien Santoro aka Dereckson <dereckson@espace-win.org>
	* @license http://www.opensource.org/licenses/bsd-license.php BSD
	* @filesource
	*/

	namespace Waystone\Workspaces\Tests\Engines\Collection;

	use Waystone\Workspaces\Engines\Collection\SQLiteCollection;

	use PHPUnit\Framework\Attributes\CoversClass;
	use PHPUnit\Framework\TestCase;

	/**
	* Tests SQLiteCollection class
	*/
	#[CoversClass(SQLiteCollection::class)]
	class SQLiteCollectionTest extends TestCase {
	///
	/// Traits
	///

	use CRUDTestTrait;
	use SQLTestTrait;

	///
	/// Test properties
	///

	/**
	* @var string Our collection
	*/
	protected $collection;

	///
	/// Class initizliation
	///

	/**
	* Gets default configuration for this test
	*
	* @return array The configuration block
	*/
	public static function getConfig () {
	return [
	'DocumentStorage' => [
	'Type' => 'SQLite',
	'File' => UNITTESTING_SQLITE_FILE
	]
	];
	}

	public function setUp () : void {
	if (!class_exists("SQLite3")) {
	$this->markTestSkipped("The SQLite3 extension is not available.");
	}

	if (!defined('COLLECTIONS_SQLITE_DATABASE_READY') && file_exists(UNITTESTING_SQLITE_FILE)) {
	unlink(UNITTESTING_SQLITE_FILE);
	}

	$this->initializeDocuments();

	global $Config;
	$Config = static::getConfig();

	$this->collection = new SQLiteCollection('quux');
	}

	///
	/// Tests specific to SQLiteCollection
	///
	/**
	* Tests the client related methods
	*/
	public function testClient () {
	global $Config;
	$client1 = SQLiteCollection::getClient();
	$client2 = SQLiteCollection::getClient();

	$this->assertInstanceOf('SQLite3', $client1);
	$this->assertInstanceOf('SQLite3', $client2);
	$this->assertSame($client1, $client2, "The collection classes are expected to use a singleton pattern for the client: you should return the same object initialized before instead to create another one.");

	$databaseList = $this->collection->query("PRAGMA database_list");
	$this->assertEquals(
	[
	'seq' => 0,
	'name' => 'main',
	'file' => realpath($Config['DocumentStorage']['File'])
	],
	$databaseList,
	"The query PRAGMA database_list hasn't returned what we expected: one database opened by the client, the file returned by the database matching our configuration file."
	);

	$this->assertTrue(
	defined('COLLECTIONS_SQLITE_DATABASE_READY'),
	"After the client has been initialized, we shall have a 'COLLECTIONS_SQLITE_DATABASE_READY' constant defined."
	);

	$this->assertSame(
	COLLECTIONS_SQLITE_DATABASE_READY,
	true,
	"COLLECTIONS_SQLITE_DATABASE_READY constant value shall be the boolean true."
	);
	}

	/**
	* Tests string escapement
	*/
	public function testEscape () {
	$toEscapeExpressions = [
	"",
	"Lorem ipsum dolor",
	"L'arbre",
	"''",
	"cœur"
	];
	$escapedExpressions = [
	"",
	"Lorem ipsum dolor",
	"L''arbre",
	"''''",
	"cœur"
	];

	for ($i = 0 ; $i < count($toEscapeExpressions) ; $i++) {
	$this->assertEquals(
	$escapedExpressions[$i],
	$this->collection->escape($toEscapeExpressions[$i]),
	"The following string isn't properly escaped: '$toEscapeExpressions[$i]'"
	);
	}
	}

	public function testStatements () {
	$sqlQueries = [
	"SELECT foo FROM bar",
	"PRAGMA foo"
	];

	$sqlStatements = [
	"UPDATE bar SET foo = 'quux'",
	"DELETE FROM bar WHERE foo = 'quux'",
	"INSERT INTO bar (foo) VALUES ('quux')",
	"REPLACE INTO bar (foo) VALUES ('quux')",
	"INSERT INTO bar SELECT FROM baz"
	];

	foreach ($sqlQueries as $sql) {
	$this->assertFalse(
	$this->collection->isStatement($sql),
	"The query $sql should be considered as a query, not as a statement, to use SQLite3::query() and not SQLite3::exec()"
	);
	}

	foreach ($sqlStatements as $sql) {
	$this->assertTrue(
	$this->collection->isStatement($sql),
	"The query $sql should be considered as a statement, not as a query, as long as SQLite3 is concerned, to use SQLite3::exec() and not SQLite3::query()"
	);
	}
	}

	/**
	* Clears resources created for this test
	*/
	public static function tearDownAfterClass () : void {
	if (file_exists(UNITTESTING_SQLITE_FILE)) {
	unlink(UNITTESTING_SQLITE_FILE);
	}
	}
	}

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