MyShaarli/tests/LinkDBTest.php

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<?php
/**
* Link datastore tests
*/
require_once 'application/Cache.php';
require_once 'application/FileUtils.php';
require_once 'application/LinkDB.php';
require_once 'application/Utils.php';
require_once 'tests/utils/ReferenceLinkDB.php';
/**
* Unitary tests for LinkDB
*/
class LinkDBTest extends PHPUnit_Framework_TestCase
{
// datastore to test write operations
protected static $testDatastore = 'sandbox/datastore.php';
protected static $refDB = null;
protected static $publicLinkDB = null;
protected static $privateLinkDB = null;
/**
* Instantiates public and private LinkDBs with test data
*
* The reference datastore contains public and private links that
* will be used to test LinkDB's methods:
* - access filtering (public/private),
* - link searches:
* - by day,
* - by tag,
* - by text,
* - etc.
*/
public static function setUpBeforeClass()
{
self::$refDB = new ReferenceLinkDB();
self::$refDB->write(self::$testDatastore);
self::$publicLinkDB = new LinkDB(self::$testDatastore, false, false);
self::$privateLinkDB = new LinkDB(self::$testDatastore, true, false);
}
/**
* Resets test data for each test
*/
protected function setUp()
{
if (file_exists(self::$testDatastore)) {
unlink(self::$testDatastore);
}
}
/**
* Allows to test LinkDB's private methods
*
* @see
* https://sebastian-bergmann.de/archives/881-Testing-Your-Privates.html
* http://stackoverflow.com/a/2798203
*/
protected static function getMethod($name)
{
$class = new ReflectionClass('LinkDB');
$method = $class->getMethod($name);
$method->setAccessible(true);
return $method;
}
/**
* Instantiate LinkDB objects - logged in user
*/
public function testConstructLoggedIn()
{
new LinkDB(self::$testDatastore, true, false);
$this->assertFileExists(self::$testDatastore);
}
/**
* Instantiate LinkDB objects - logged out or public instance
*/
public function testConstructLoggedOut()
{
new LinkDB(self::$testDatastore, false, false);
$this->assertFileExists(self::$testDatastore);
}
/**
* Attempt to instantiate a LinkDB whereas the datastore is not writable
*
* @expectedException IOException
* @expectedExceptionMessageRegExp /Error accessing null/
*/
public function testConstructDatastoreNotWriteable()
{
new LinkDB('null/store.db', false, false);
}
/**
* The DB doesn't exist, ensure it is created with dummy content
*/
public function testCheckDBNew()
{
$linkDB = new LinkDB(self::$testDatastore, false, false);
unlink(self::$testDatastore);
$this->assertFileNotExists(self::$testDatastore);
$checkDB = self::getMethod('_checkDB');
$checkDB->invokeArgs($linkDB, array());
$this->assertFileExists(self::$testDatastore);
// ensure the correct data has been written
$this->assertGreaterThan(0, filesize(self::$testDatastore));
}
/**
* The DB exists, don't do anything
*/
public function testCheckDBLoad()
{
$linkDB = new LinkDB(self::$testDatastore, false, false);
$datastoreSize = filesize(self::$testDatastore);
$this->assertGreaterThan(0, $datastoreSize);
$checkDB = self::getMethod('_checkDB');
$checkDB->invokeArgs($linkDB, array());
// ensure the datastore is left unmodified
$this->assertEquals(
$datastoreSize,
filesize(self::$testDatastore)
);
}
/**
* Load an empty DB
*/
public function testReadEmptyDB()
{
file_put_contents(self::$testDatastore, '<?php /* S7QysKquBQA= */ ?>');
$emptyDB = new LinkDB(self::$testDatastore, false, false);
$this->assertEquals(0, sizeof($emptyDB));
$this->assertEquals(0, count($emptyDB));
}
/**
* Load public links from the DB
*/
public function testReadPublicDB()
{
$this->assertEquals(
self::$refDB->countPublicLinks(),
sizeof(self::$publicLinkDB)
);
}
/**
* Load public and private links from the DB
*/
public function testReadPrivateDB()
{
$this->assertEquals(
self::$refDB->countLinks(),
sizeof(self::$privateLinkDB)
);
}
/**
* Save the links to the DB
*/
public function testSaveDB()
{
$testDB = new LinkDB(self::$testDatastore, true, false);
$dbSize = sizeof($testDB);
$link = array(
'title'=>'an additional link',
'url'=>'http://dum.my',
'description'=>'One more',
'private'=>0,
'linkdate'=>'20150518_190000',
'tags'=>'unit test'
);
$testDB[$link['linkdate']] = $link;
$testDB->savedb('tests');
$testDB = new LinkDB(self::$testDatastore, true, false);
$this->assertEquals($dbSize + 1, sizeof($testDB));
}
/**
* Count existing links
*/
public function testCount()
{
$this->assertEquals(
self::$refDB->countPublicLinks(),
self::$publicLinkDB->count()
);
$this->assertEquals(
self::$refDB->countLinks(),
self::$privateLinkDB->count()
);
}
/**
* Count existing links - public links hidden
*/
public function testCountHiddenPublic()
{
$linkDB = new LinkDB(self::$testDatastore, false, true);
$this->assertEquals(
0,
$linkDB->count()
);
$this->assertEquals(
0,
$linkDB->count()
);
}
/**
* List the days for which links have been posted
*/
public function testDays()
{
$this->assertEquals(
array('20121206', '20130614', '20150310'),
self::$publicLinkDB->days()
);
$this->assertEquals(
array('20121206', '20130614', '20141125', '20150310'),
self::$privateLinkDB->days()
);
}
/**
* The URL corresponds to an existing entry in the DB
*/
public function testGetKnownLinkFromURL()
{
$link = self::$publicLinkDB->getLinkFromUrl('http://mediagoblin.org/');
$this->assertNotEquals(false, $link);
$this->assertEquals(
'A free software media publishing platform',
$link['description']
);
}
/**
* The URL is not in the DB
*/
public function testGetUnknownLinkFromURL()
{
$this->assertEquals(
false,
self::$publicLinkDB->getLinkFromUrl('http://dev.null')
);
}
/**
* Lists all tags
*/
public function testAllTags()
{
$this->assertEquals(
array(
'web' => 3,
'cartoon' => 2,
'gnu' => 2,
'dev' => 1,
'samba' => 1,
'media' => 1,
'software' => 1,
'stallman' => 1,
'free' => 1,
'-exclude' => 1,
'stuff' => 2,
),
self::$publicLinkDB->allTags()
);
$this->assertEquals(
array(
'web' => 4,
'cartoon' => 3,
'gnu' => 2,
'dev' => 2,
'samba' => 1,
'media' => 1,
'software' => 1,
'stallman' => 1,
'free' => 1,
'html' => 1,
'w3c' => 1,
'css' => 1,
'Mercurial' => 1,
'stuff' => 2,
'-exclude' => 1,
'.hidden' => 1,
),
self::$privateLinkDB->allTags()
);
}
/**
* Test real_url without redirector.
*/
public function testLinkRealUrlWithoutRedirector()
{
$db = new LinkDB(self::$testDatastore, false, false);
foreach($db as $link) {
$this->assertEquals($link['url'], $link['real_url']);
}
}
/**
* Test real_url with redirector.
*/
public function testLinkRealUrlWithRedirector()
{
$redirector = 'http://redirector.to?';
$db = new LinkDB(self::$testDatastore, false, false, $redirector);
foreach($db as $link) {
$this->assertStringStartsWith($redirector, $link['real_url']);
}
}
/**
* Test filter with string.
*/
public function testFilterString()
{
$tags = 'dev cartoon';
$this->assertEquals(
2,
count(self::$privateLinkDB->filter(LinkFilter::$FILTER_TAG, $tags, true, false))
);
}
/**
* Test filter with string.
*/
public function testFilterArray()
{
$tags = array('dev', 'cartoon');
$this->assertEquals(
2,
count(self::$privateLinkDB->filter(LinkFilter::$FILTER_TAG, $tags, true, false))
);
}
/**
* Test hidden tags feature:
* tags starting with a dot '.' are only visible when logged in.
*/
public function testHiddenTags()
{
$tags = '.hidden';
$this->assertEquals(
1,
count(self::$privateLinkDB->filter(LinkFilter::$FILTER_TAG, $tags, true, false))
);
$this->assertEquals(
0,
count(self::$publicLinkDB->filter(LinkFilter::$FILTER_TAG, $tags, true, false))
);
}
}