EditPageTest.php

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<?php

class EditPageTest extends MediaWikiTestCase {

        function testExtractSectionTitle( $section, $title ) {
                $extracted = EditPage::extractSectionTitle( $section );
                $this->assertEquals( $title, $extracted );
        }

        public static function provideExtractSectionTitle() {
                return array(
                        array(
                                "== Test ==\n\nJust a test section.",
                                "Test"
                        ),
                        array(
                                "An initial section, no header.",
                                false
                        ),
                        array(
                                "An initial section with a fake heder (bug 32617)\n\n== Test == ??\nwtf",
                                false
                        ),
                        array(
                                "== Section ==\nfollowed by a fake == Non-section == ??\nnoooo",
                                "Section"
                        ),
                        array(
                                "== Section== \t\r\n followed by whitespace (bug 35051)",
                                'Section',
                        ),
                );
        }

        protected function forceRevisionDate( WikiPage $page, $timestamp ) {
                $dbw = wfGetDB( DB_MASTER );

                $dbw->update( 'revision',
                        array( 'rev_timestamp' => $timestamp ),
                        array( 'rev_id' => $page->getLatest() ) );

                $page->clear();
        }

        function assertEditedTextEquals( $expected, $actual, $msg='' ) {
                return $this->assertEquals( rtrim($expected), rtrim($actual), $msg );
        }

        protected function assertEdit( $title, $baseText, $user = null, array $edit,
                $expectedCode = EditPage::AS_OK, $expectedText = null, $message = null
        ) {
                if ( is_string( $title ) ) {
                        $ns = $this->getDefaultWikitextNS();
                        $title = Title::newFromText( $title, $ns );
                }

                if ( is_string( $user ) ) {
                        $user = User::newFromName( $user );

                        if ( $user->getId() === 0 ) {
                                $user->addToDatabase();
                        }
                }

                $page = WikiPage::factory( $title );

                if ( $baseText !== null ) {
                        $content = ContentHandler::makeContent( $baseText, $title );
                        $page->doEditContent( $content, "base text for test" );
                        $this->forceRevisionDate( $page, '20120101000000' );

                        //sanity check
                        $page->clear();
                        $currentText = ContentHandler::getContentText( $page->getContent() );

                        # EditPage rtrim() the user input, so we alter our expected text
                        # to reflect that.
                        $this->assertEditedTextEquals( $baseText, $currentText );
                }

                if ( $user == null ) {
                        $user = $GLOBALS['wgUser'];
                } else {
                        $this->setMwGlobals( 'wgUser', $user );
                }

                if ( !isset( $edit['wpEditToken'] ) ) {
                        $edit['wpEditToken'] = $user->getEditToken();
                }

                if ( !isset( $edit['wpEdittime'] ) ) {
                        $edit['wpEdittime'] = $page->exists() ? $page->getTimestamp() : '';
                }

                if ( !isset( $edit['wpStarttime'] ) ) {
                        $edit['wpStarttime'] = wfTimestampNow();
                }

                $req = new FauxRequest( $edit, true ); // session ??

                $ep = new EditPage( new Article( $title ) );
                $ep->setContextTitle( $title );
                $ep->importFormData( $req );

                $bot = isset( $edit['bot'] ) ? (bool)$edit['bot'] : false;

                // this is where the edit happens!
                // Note: don't want to use EditPage::AttemptSave, because it messes with $wgOut
                // and throws exceptions like PermissionsError
                $status = $ep->internalAttemptSave( $result, $bot );

                if ( $expectedCode !== null ) {
                        // check edit code
                        $this->assertEquals( $expectedCode, $status->value,
                                "Expected result code mismatch. $message" );
                }

                $page = WikiPage::factory( $title );

                if ( $expectedText !== null ) {
                        // check resulting page text
                        $content = $page->getContent();
                        $text = ContentHandler::getContentText( $content );

                        # EditPage rtrim() the user input, so we alter our expected text
                        # to reflect that.
                        $this->assertEditedTextEquals( $expectedText, $text,
                                "Expected article text mismatch. $message" );
                }

                return $page;
        }

        public function testCreatePage() {
                $text = "Hello World!";
                $edit = array(
                        'wpTextbox1' => $text,
                        'wpSummary' => 'just testing',
                );

                $this->assertEdit( 'EditPageTest_testCreatePafe', null, null, $edit,
                        EditPage::AS_SUCCESS_NEW_ARTICLE, $text,
                        "expected successfull creation with given text" );
        }

        public function testUpdatePage() {
                $text = "one";
                $edit = array(
                        'wpTextbox1' => $text,
                        'wpSummary' => 'first update',
                );

                $page = $this->assertEdit( 'EditPageTest_testUpdatePage', "zero", null, $edit,
                        EditPage::AS_SUCCESS_UPDATE, $text,
                        "expected successfull update with given text" );

                $this->forceRevisionDate( $page, '20120101000000' );

                $text = "two";
                $edit = array(
                        'wpTextbox1' => $text,
                        'wpSummary' => 'second update',
                );

                $this->assertEdit( 'EditPageTest_testUpdatePage', null, null, $edit,
                        EditPage::AS_SUCCESS_UPDATE, $text,
                        "expected successfull update with given text" );
        }

        public static function provideSectionEdit() {
                $text =
'Intro

== one ==
first section.

== two ==
second section.
';

                $sectionOne =
'== one ==
hello
';

                $newSection =
'== new section ==

hello
';

                $textWithNewSectionOne = preg_replace( '/== one ==.*== two ==/ms',
                                                                                "$sectionOne\n== two ==", $text );

                $textWithNewSectionAdded = "$text\n$newSection";

                return array(
                        array( #0
                                $text,
                                '',
                                'hello',
                                'replace all',
                                'hello'
                        ),

                        array( #1
                                $text,
                                '1',
                                $sectionOne,
                                'replace first section',
                                $textWithNewSectionOne,
                        ),

                        array( #2
                                $text,
                                'new',
                                'hello',
                                'new section',
                                $textWithNewSectionAdded,
                        ),
                );
        }

        public function testSectionEdit( $base, $section, $text, $summary, $expected ) {
                $edit = array(
                        'wpTextbox1' => $text,
                        'wpSummary' => $summary,
                        'wpSection' => $section,
                );

                $this->assertEdit( 'EditPageTest_testSectionEdit', $base, null, $edit,
                        EditPage::AS_SUCCESS_UPDATE, $expected,
                        "expected successfull update of section" );
        }

        public static function provideAutoMerge() {
                $tests = array();

                $tests[] = array( #0: plain conflict
                        "Elmo", # base edit user
                        "one\n\ntwo\n\nthree\n",
                        array( #adam's edit
                                'wpStarttime' => 1,
                                'wpTextbox1' => "ONE\n\ntwo\n\nthree\n",
                        ),
                        array( #berta's edit
                                'wpStarttime' => 2,
                                'wpTextbox1' => "(one)\n\ntwo\n\nthree\n",
                        ),
                        EditPage::AS_CONFLICT_DETECTED, # expected code
                        "ONE\n\ntwo\n\nthree\n", # expected text
                        'expected edit conflict', # message
                );

                $tests[] = array( #1: successful merge
                        "Elmo", # base edit user
                        "one\n\ntwo\n\nthree\n",
                        array( #adam's edit
                                'wpStarttime' => 1,
                                'wpTextbox1' => "ONE\n\ntwo\n\nthree\n",
                        ),
                        array( #berta's edit
                                'wpStarttime' => 2,
                                'wpTextbox1' => "one\n\ntwo\n\nTHREE\n",
                        ),
                        EditPage::AS_SUCCESS_UPDATE, # expected code
                        "ONE\n\ntwo\n\nTHREE\n", # expected text
                        'expected automatic merge', # message
                );

                $text = "Intro\n\n";
                $text .= "== first section ==\n\n";
                $text .= "one\n\ntwo\n\nthree\n\n";
                $text .= "== second section ==\n\n";
                $text .= "four\n\nfive\n\nsix\n\n";

                // extract the first section.
                $section = preg_replace( '/.*(== first section ==.*)== second section ==.*/sm', '$1', $text );

                // generate expected text after merge
                $expected = str_replace( 'one', 'ONE', str_replace( 'three', 'THREE', $text ) );

                $tests[] = array( #2: merge in section
                        "Elmo", # base edit user
                        $text,
                        array( #adam's edit
                                'wpStarttime' => 1,
                                'wpTextbox1' => str_replace( 'one', 'ONE', $section ),
                                'wpSection' => '1'
                        ),
                        array( #berta's edit
                                'wpStarttime' => 2,
                                'wpTextbox1' => str_replace( 'three', 'THREE', $section ),
                                'wpSection' => '1'
                        ),
                        EditPage::AS_SUCCESS_UPDATE, # expected code
                        $expected, # expected text
                        'expected automatic section merge', # message
                );

                // see whether it makes a difference who did the base edit
                $testsWithAdam = array_map( function( $test ) {
                        $test[0] = 'Adam'; // change base edit user
                        return $test;
                }, $tests );

                $testsWithBerta = array_map( function( $test ) {
                        $test[0] = 'Berta'; // change base edit user
                        return $test;
                }, $tests );

                return array_merge( $tests, $testsWithAdam, $testsWithBerta );
        }

        function testHasValidDiff3() {
                global $wgDiff3;

                if ( !$wgDiff3 ) {
                        $this->markTestSkipped( "Can't test conflict resolution because \$wgDiff3 is not configured" );
                } elseif ( !file_exists( $wgDiff3 ) ) {
                        #XXX: this sucks, since it uses arcane internal knowledge about TextContentHandler::merge3 and wfMerge.
                        $this->markTestSkipped( "Can't test conflict resolution because \$wgDiff3 is misconfigured: can't find $wgDiff3" );
                }
                $this->assertTrue( true );
        }

        public function testAutoMerge( $baseUser, $text, $adamsEdit, $bertasEdit,
                                $expectedCode, $expectedText, $message = null
        ) {

                //create page
                $ns = $this->getDefaultWikitextNS();
                $title = Title::newFromText( 'EditPageTest_testAutoMerge', $ns );
                $page = WikiPage::factory( $title );

                if ( $page->exists() ) {
                        $page->doDeleteArticle( "clean slate for testing" );
                }

                $baseEdit = array(
                        'wpTextbox1' => $text,
                );

                $page = $this->assertEdit( 'EditPageTest_testAutoMerge', null,
                                        $baseUser, $baseEdit, null, null, __METHOD__ );

                $this->forceRevisionDate( $page, '20120101000000' );

                $edittime = $page->getTimestamp();

                // start timestamps for conflict detection
                if ( !isset( $adamsEdit['wpStarttime'] ) ) {
                        $adamsEdit['wpStarttime'] = 1;
                }

                if ( !isset( $bertasEdit['wpStarttime'] ) ) {
                        $bertasEdit['wpStarttime'] = 2;
                }

                $starttime = wfTimestampNow();
                $adamsTime = wfTimestamp( TS_MW, (int)wfTimestamp( TS_UNIX, $starttime ) + (int)$adamsEdit['wpStarttime'] );
                $bertasTime = wfTimestamp( TS_MW, (int)wfTimestamp( TS_UNIX, $starttime ) + (int)$bertasEdit['wpStarttime'] );

                $adamsEdit['wpStarttime'] = $adamsTime;
                $bertasEdit['wpStarttime'] = $bertasTime;

                $adamsEdit['wpSummary'] = 'Adam\'s edit';
                $bertasEdit['wpSummary'] = 'Bertas\'s edit';

                $adamsEdit['wpEdittime'] = $edittime;
                $bertasEdit['wpEdittime'] = $edittime;

                // first edit
                $this->assertEdit( 'EditPageTest_testAutoMerge', null, 'Adam', $adamsEdit,
                        EditPage::AS_SUCCESS_UPDATE, null, "expected successfull update" );

                // second edit
                $this->assertEdit( 'EditPageTest_testAutoMerge', null, 'Berta', $bertasEdit,
                        $expectedCode, $expectedText, $message );
        }
}