Current File : //www/varak.net/wiki.varak.net/tests/phpunit/maintenance/fetchTextTest.php
<?php
namespace MediaWiki\Tests\Maintenance;
use ContentHandler;
use FetchText;
use MediaWikiTestCase;
use MWException;
use Title;
use PHPUnit_Framework_ExpectationFailedException;
use WikiPage;
require_once __DIR__ . "/../../../maintenance/fetchText.php";
/**
* Mock for the input/output of FetchText
*
* FetchText internally tries to access stdin and stdout. We mock those aspects
* for testing.
*/
class SemiMockedFetchText extends FetchText {
/**
* @var string|null Text to pass as stdin
*/
private $mockStdinText = null;
/**
* @var bool Whether or not a text for stdin has been provided
*/
private $mockSetUp = false;
/**
* @var array Invocation counters for the mocked aspects
*/
private $mockInvocations = [ 'getStdin' => 0 ];
/**
* Data for the fake stdin
*
* @param string $stdin The string to be used instead of stdin
*/
function mockStdin( $stdin ) {
$this->mockStdinText = $stdin;
$this->mockSetUp = true;
}
/**
* Gets invocation counters for mocked methods.
*
* @return array An array, whose keys are function names. The corresponding values
* denote the number of times the function has been invoked.
*/
function mockGetInvocations() {
return $this->mockInvocations;
}
// -----------------------------------------------------------------
// Mocked functions from FetchText follow.
function getStdin( $len = null ) {
$this->mockInvocations['getStdin']++;
if ( $len !== null ) {
throw new PHPUnit_Framework_ExpectationFailedException(
"Tried to get stdin with non null parameter" );
}
if ( !$this->mockSetUp ) {
throw new PHPUnit_Framework_ExpectationFailedException(
"Tried to get stdin before setting up rerouting" );
}
return fopen( 'data://text/plain,' . $this->mockStdinText, 'r' );
}
}
/**
* TestCase for FetchText
*
* @group Database
* @group Dump
* @covers FetchText
*/
class FetchTextTest extends MediaWikiTestCase {
// We add 5 Revisions for this test. Their corresponding text id's
// are stored in the following 5 variables.
protected static $textId1;
protected static $textId2;
protected static $textId3;
protected static $textId4;
protected static $textId5;
/**
* @var Exception|null As the current MediaWikiTestCase::run is not
* robust enough to recover from thrown exceptions directly, we cannot
* throw frow within addDBData, although it would be appropriate. Hence,
* we catch the exception and store it until we are in setUp and may
* finally rethrow the exception without crashing the test suite.
*/
protected static $exceptionFromAddDBDataOnce;
/**
* @var FetchText The (mocked) FetchText that is to test
*/
private $fetchText;
/**
* Adds a revision to a page, while returning the resuting text's id
*
* @param WikiPage $page The page to add the revision to
* @param string $text The revisions text
* @param string $summary The revisions summare
* @return int
* @throws MWException
*/
private function addRevision( $page, $text, $summary ) {
$status = $page->doEditContent(
ContentHandler::makeContent( $text, $page->getTitle() ),
$summary
);
if ( $status->isGood() ) {
$value = $status->getValue();
$revision = $value['revision'];
$id = $revision->getTextId();
if ( $id > 0 ) {
return $id;
}
}
throw new MWException( "Could not determine text id" );
}
function addDBDataOnce() {
$wikitextNamespace = $this->getDefaultWikitextNS();
try {
$title = Title::newFromText( 'FetchTextTestPage1', $wikitextNamespace );
$page = WikiPage::factory( $title );
self::$textId1 = $this->addRevision(
$page,
"FetchTextTestPage1Text1",
"FetchTextTestPage1Summary1"
);
$title = Title::newFromText( 'FetchTextTestPage2', $wikitextNamespace );
$page = WikiPage::factory( $title );
self::$textId2 = $this->addRevision(
$page,
"FetchTextTestPage2Text1",
"FetchTextTestPage2Summary1"
);
self::$textId3 = $this->addRevision(
$page,
"FetchTextTestPage2Text2",
"FetchTextTestPage2Summary2"
);
self::$textId4 = $this->addRevision(
$page,
"FetchTextTestPage2Text3",
"FetchTextTestPage2Summary3"
);
self::$textId5 = $this->addRevision(
$page,
"FetchTextTestPage2Text4 some additional Text ",
"FetchTextTestPage2Summary4 extra "
);
} catch ( Exception $e ) {
// We'd love to pass $e directly. However, ... see
// documentation of exceptionFromAddDBDataOnce
self::$exceptionFromAddDBDataOnce = $e;
}
}
protected function setUp() {
parent::setUp();
// Check if any Exception is stored for rethrowing from addDBData
if ( self::$exceptionFromAddDBDataOnce !== null ) {
throw self::$exceptionFromAddDBDataOnce;
}
$this->fetchText = new SemiMockedFetchText();
}
/**
* Helper to relate FetchText's input and output
* @param string $input
* @param string $expectedOutput
*/
private function assertFilter( $input, $expectedOutput ) {
$this->fetchText->mockStdin( $input );
$this->fetchText->execute();
$invocations = $this->fetchText->mockGetInvocations();
$this->assertEquals( 1, $invocations['getStdin'],
"getStdin invocation counter" );
$this->expectOutputString( $expectedOutput );
}
// Instead of the following functions, a data provider would be great.
// However, as data providers are evaluated /before/ addDBData, a data
// provider would not know the required ids.
function testExistingSimple() {
$this->assertFilter( self::$textId2,
self::$textId2 . "\n23\nFetchTextTestPage2Text1" );
}
function testExistingSimpleWithNewline() {
$this->assertFilter( self::$textId2 . "\n",
self::$textId2 . "\n23\nFetchTextTestPage2Text1" );
}
function testExistingSeveral() {
$this->assertFilter(
implode( "\n", [
self::$textId1,
self::$textId5,
self::$textId3,
self::$textId3,
] ),
implode( '', [
self::$textId1 . "\n23\nFetchTextTestPage1Text1",
self::$textId5 . "\n44\nFetchTextTestPage2Text4 "
. "some additional Text",
self::$textId3 . "\n23\nFetchTextTestPage2Text2",
self::$textId3 . "\n23\nFetchTextTestPage2Text2"
] ) );
}
function testEmpty() {
$this->assertFilter( "", null );
}
function testNonExisting() {
$this->assertFilter( self::$textId5 + 10, ( self::$textId5 + 10 ) . "\n-1\n" );
}
function testNegativeInteger() {
$this->assertFilter( "-42", "-42\n-1\n" );
}
function testFloatingPointNumberExisting() {
// float -> int -> revision
$this->assertFilter( self::$textId3 + 0.14159,
self::$textId3 . "\n23\nFetchTextTestPage2Text2" );
}
function testFloatingPointNumberNonExisting() {
$this->assertFilter( self::$textId5 + 3.14159,
( self::$textId5 + 3 ) . "\n-1\n" );
}
function testCharacters() {
$this->assertFilter( "abc", "0\n-1\n" );
}
function testMix() {
$this->assertFilter( "ab\n" . self::$textId4 . ".5cd\n\nefg\n" . self::$textId2
. "\n" . self::$textId3,
implode( "", [
"0\n-1\n",
self::$textId4 . "\n23\nFetchTextTestPage2Text3",
"0\n-1\n",
"0\n-1\n",
self::$textId2 . "\n23\nFetchTextTestPage2Text1",
self::$textId3 . "\n23\nFetchTextTestPage2Text2"
] ) );
}
}
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