MockDatabaseEngineTest.php
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MockDatabaseEngineTest.php
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	<?php

	namespace Keruald\Database\Tests\Engines;

	use Keruald\Database\Engines\MockDatabaseEngine;

	use Keruald\Database\Result\DatabaseResult;
	use PHPUnit\Framework\TestCase;

	class MockDatabaseEngineTest extends TestCase {

	private MockDatabaseEngine $db;

	const QUERY = "SELECT name, color FROM fruits";

	const RESULT = [
	[ "name" => "strawberry", "color" => "red" ],
	[ "name" => "blueberry", "color" => "violet" ],
	];

	protected function setUp () : void {
	$queries = [
	self::QUERY => self::RESULT,
	];

	$this->db = (new MockDatabaseEngine())
	->withQueries($queries);
	}

	public function testNumRowsWithoutRequest () {
	$this->assertEquals(0, $this->db->numRows());
	}

	public function testNumRowsWithRequest () {
	$result = $this->db->query(self::QUERY);

	$this->assertEquals(2, $this->db->numRows($result));
	}

	public function testQuery () {
	$result = $this->db->query(self::QUERY);

	$this->assertInstanceOf(DatabaseResult::class, $result);
	$this->assertEquals(self::RESULT[0], $result->fetchRow());
	}

	public function testLoad () {
	$db = MockDatabaseEngine::load([]);

	$this->assertInstanceOf(MockDatabaseEngine::class, $db);
	}

	public function testFetchRow () {
	$result = $this->db->query(self::QUERY);

	$this->assertEquals(self::RESULT[0], $this->db->fetchRow($result));
	}

	public function testWithQueriesFollowsChainingPattern () {
	$queries = [
	self::QUERY => self::RESULT,
	];

	$db = new MockDatabaseEngine();
	$db = $db->withQueries($queries);

	$this->assertInstanceOf(MockDatabaseEngine::class, $db);
	}
	}