MWNamespaceTest.php

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<?php
class MWNamespaceTest extends MediaWikiTestCase {
        protected function setUp() {
        }

        protected function tearDown() {
        }


#### START OF TESTS #########################################################

        public function testIsMovable() {
                $this->assertFalse( MWNamespace::isMovable( NS_CATEGORY ) );
                # @todo FIXME: Write more tests!!
        }

        public function testIsSubject() {
                // Special namespaces
                $this->assertIsSubject( NS_MEDIA   );
                $this->assertIsSubject( NS_SPECIAL );

                // Subject pages
                $this->assertIsSubject( NS_MAIN );
                $this->assertIsSubject( NS_USER );
                $this->assertIsSubject( 100     );  # user defined

                // Talk pages
                $this->assertIsNotSubject( NS_TALK      );
                $this->assertIsNotSubject( NS_USER_TALK );
                $this->assertIsNotSubject( 101          ); # user defined

                // Back compat
                $this->assertTrue( MWNamespace::isMain( NS_MAIN ) == MWNamespace::isSubject( NS_MAIN ) );
                $this->assertTrue( MWNamespace::isMain( NS_USER_TALK ) == MWNamespace::isSubject( NS_USER_TALK ) );
        }

        public function testIsTalk() {
                // Special namespaces
                $this->assertIsNotTalk( NS_MEDIA   );
                $this->assertIsNotTalk( NS_SPECIAL );

                // Subject pages
                $this->assertIsNotTalk( NS_MAIN   );
                $this->assertIsNotTalk( NS_USER   );
                $this->assertIsNotTalk( 100       );  # user defined

                // Talk pages
                $this->assertIsTalk( NS_TALK      );
                $this->assertIsTalk( NS_USER_TALK );
                $this->assertIsTalk( 101          ); # user defined
        }

        public function testGetSubject() {
                // Special namespaces are their own subjects
                $this->assertEquals( NS_MEDIA, MWNamespace::getSubject( NS_MEDIA ) );
                $this->assertEquals( NS_SPECIAL, MWNamespace::getSubject( NS_SPECIAL ) );

                $this->assertEquals( NS_MAIN, MWNamespace::getSubject( NS_TALK ) );
                $this->assertEquals( NS_USER, MWNamespace::getSubject( NS_USER_TALK ) );
        }

        public function testGetTalk() {
                $this->assertEquals( NS_TALK, MWNamespace::getTalk( NS_MAIN ) );
                $this->assertEquals( NS_TALK, MWNamespace::getTalk( NS_TALK ) );
                $this->assertEquals( NS_USER_TALK, MWNamespace::getTalk( NS_USER ) );
                $this->assertEquals( NS_USER_TALK, MWNamespace::getTalk( NS_USER_TALK ) );
        }

        public function testGetTalkExceptionsForNsMedia() {
                $this->assertNull( MWNamespace::getTalk( NS_MEDIA ) );
        }

        public function testGetTalkExceptionsForNsSpecial() {
                $this->assertNull( MWNamespace::getTalk( NS_SPECIAL ) );
        }

        public function testGetAssociated() {
                $this->assertEquals( NS_TALK, MWNamespace::getAssociated( NS_MAIN ) );
                $this->assertEquals( NS_MAIN, MWNamespace::getAssociated( NS_TALK ) );

        }

        ### Exceptions with getAssociated()
        ### NS_MEDIA and NS_SPECIAL do not have talk pages. MediaWiki raises
        ### an exception for them.

        public function testGetAssociatedExceptionsForNsMedia() {
                $this->assertNull( MWNamespace::getAssociated( NS_MEDIA   ) );
        }

        public function testGetAssociatedExceptionsForNsSpecial() {
                $this->assertNull( MWNamespace::getAssociated( NS_SPECIAL ) );
        }

/*
        public function testExists() {
                // Remove the following lines when you implement this test.
                $this->markTestIncomplete(
                  'This test has not been implemented yet. Rely on $wgCanonicalNamespaces.'
                );
        }
*/

        public function testEquals() {
                $this->assertTrue( MWNamespace::equals( NS_MAIN, NS_MAIN ) );
                $this->assertTrue( MWNamespace::equals( NS_MAIN, 0 ) ); // In case we make NS_MAIN 'MAIN'
                $this->assertTrue( MWNamespace::equals( NS_USER, NS_USER ) );
                $this->assertTrue( MWNamespace::equals( NS_USER, 2 ) );
                $this->assertTrue( MWNamespace::equals( NS_USER_TALK, NS_USER_TALK ) );
                $this->assertTrue( MWNamespace::equals( NS_SPECIAL, NS_SPECIAL ) );
                $this->assertFalse( MWNamespace::equals( NS_MAIN, NS_TALK ) );
                $this->assertFalse( MWNamespace::equals( NS_USER, NS_USER_TALK ) );
                $this->assertFalse( MWNamespace::equals( NS_PROJECT, NS_TEMPLATE ) );
        }

        public function testSubjectEquals() {
                $this->assertSameSubject( NS_MAIN, NS_MAIN );
                $this->assertSameSubject( NS_MAIN, 0 ); // In case we make NS_MAIN 'MAIN'
                $this->assertSameSubject( NS_USER, NS_USER );
                $this->assertSameSubject( NS_USER, 2 );
                $this->assertSameSubject( NS_USER_TALK, NS_USER_TALK );
                $this->assertSameSubject( NS_SPECIAL, NS_SPECIAL );
                $this->assertSameSubject( NS_MAIN, NS_TALK );
                $this->assertSameSubject( NS_USER, NS_USER_TALK );

                $this->assertDifferentSubject( NS_PROJECT, NS_TEMPLATE );
                $this->assertDifferentSubject( NS_SPECIAL, NS_MAIN     );
        }

        public function testSpecialAndMediaAreDifferentSubjects() {
                $this->assertDifferentSubject(
                        NS_MEDIA, NS_SPECIAL,
                        "NS_MEDIA and NS_SPECIAL are different subject namespaces"
                );
                $this->assertDifferentSubject(
                        NS_SPECIAL, NS_MEDIA,
                        "NS_SPECIAL and NS_MEDIA are different subject namespaces"
                );

        }

/*
        public function testGetCanonicalNamespaces() {
                // Remove the following lines when you implement this test.
                $this->markTestIncomplete(
                  'This test has not been implemented yet. Rely on $wgCanonicalNamespaces.'
                );
        }
*/
/*
        public function testGetCanonicalName() {
                // Remove the following lines when you implement this test.
                $this->markTestIncomplete(
                  'This test has not been implemented yet. Rely on $wgCanonicalNamespaces.'
                );
        }
*/
/*
        public function testGetCanonicalIndex() {
                // Remove the following lines when you implement this test.
                $this->markTestIncomplete(
                  'This test has not been implemented yet. Rely on $wgCanonicalNamespaces.'
                );
        }
*/
/*
        public function testGetValidNamespaces() {
                // Remove the following lines when you implement this test.
                $this->markTestIncomplete(
                  'This test has not been implemented yet. Rely on $wgCanonicalNamespaces.'
                );
        }
*/
        public function testCanTalk() {
                $this->assertCanNotTalk( NS_MEDIA   );
                $this->assertCanNotTalk( NS_SPECIAL );

                $this->assertCanTalk( NS_MAIN      );
                $this->assertCanTalk( NS_TALK      );
                $this->assertCanTalk( NS_USER      );
                $this->assertCanTalk( NS_USER_TALK );

                // User defined namespaces
                $this->assertCanTalk( 100 );
                $this->assertCanTalk( 101 );
        }

        public function testIsContent() {
                // NS_MAIN is a content namespace per DefaultSettings.php
                // and per function definition.
                $this->assertIsContent( NS_MAIN );

                global $wgContentNamespaces;

                $saved = $wgContentNamespaces;

                $wgContentNamespaces[] = NS_MAIN;
                $this->assertIsContent( NS_MAIN );

                // Other namespaces which are not expected to be content
                if ( isset( $wgContentNamespaces[NS_MEDIA] ) ) {
                        unset( $wgContentNamespaces[NS_MEDIA] );
                }
                $this->assertIsNotContent( NS_MEDIA );

                if ( isset( $wgContentNamespaces[NS_SPECIAL] ) ) {
                        unset( $wgContentNamespaces[NS_SPECIAL] );
                }
                $this->assertIsNotContent( NS_SPECIAL );

                if ( isset( $wgContentNamespaces[NS_TALK] ) ) {
                        unset( $wgContentNamespaces[NS_TALK] );
                }
                $this->assertIsNotContent( NS_TALK );

                if ( isset( $wgContentNamespaces[NS_USER] ) ) {
                        unset( $wgContentNamespaces[NS_USER] );
                }
                $this->assertIsNotContent( NS_USER );

                if ( isset( $wgContentNamespaces[NS_CATEGORY] ) ) {
                        unset( $wgContentNamespaces[NS_CATEGORY] );
                }
                $this->assertIsNotContent( NS_CATEGORY );

                if ( isset( $wgContentNamespaces[100] ) ) {
                        unset( $wgContentNamespaces[100] );
                }
                $this->assertIsNotContent( 100 );

                $wgContentNamespaces = $saved;
        }

        public function testIsContentWithAdditionsInWgContentNamespaces() {
                // NS_MAIN is a content namespace per DefaultSettings.php
                // and per function definition.
                $this->assertIsContent( NS_MAIN );

                // Tests that user defined namespace #252 is not content:
                $this->assertIsNotContent( 252 );

                # @todo FIXME: Is global saving really required for PHPUnit?
                // Bless namespace # 252 as a content namespace
                global $wgContentNamespaces;
                $savedGlobal = $wgContentNamespaces;
                $wgContentNamespaces[] = 252;
                $this->assertIsContent( 252 );

                // Makes sure NS_MAIN was not impacted
                $this->assertIsContent( NS_MAIN );

                // Restore global
                $wgContentNamespaces = $savedGlobal;

                // Verify namespaces after global restauration
                $this->assertIsContent( NS_MAIN  );
                $this->assertIsNotContent( 252 );
        }

        public function testIsWatchable() {
                // Specials namespaces are not watchable
                $this->assertIsNotWatchable( NS_MEDIA   );
                $this->assertIsNotWatchable( NS_SPECIAL );

                // Core defined namespaces are watchables
                $this->assertIsWatchable( NS_MAIN );
                $this->assertIsWatchable( NS_TALK );

                // Additional, user defined namespaces are watchables
                $this->assertIsWatchable( 100 );
                $this->assertIsWatchable( 101 );
        }

        public function testHasSubpages() {
                // Special namespaces:
                $this->assertHasNotSubpages( NS_MEDIA   );
                $this->assertHasNotSubpages( NS_SPECIAL );

                // namespaces without subpages
                # save up global
                global $wgNamespacesWithSubpages;
                $saved = null;
                if( array_key_exists( NS_MAIN, $wgNamespacesWithSubpages ) ) {
                        $saved = $wgNamespacesWithSubpages[NS_MAIN];
                        unset( $wgNamespacesWithSubpages[NS_MAIN] );
                }

                $this->assertHasNotSubpages( NS_MAIN );

                $wgNamespacesWithSubpages[NS_MAIN] = true;
                $this->assertHasSubpages( NS_MAIN );
                $wgNamespacesWithSubpages[NS_MAIN] = false;
                $this->assertHasNotSubpages( NS_MAIN );

                # restore global
                if( $saved !== null ) {
                        $wgNamespacesWithSubpages[NS_MAIN] = $saved;
                }

                // Some namespaces with subpages
                $this->assertHasSubpages( NS_TALK      );
                $this->assertHasSubpages( NS_USER      );
                $this->assertHasSubpages( NS_USER_TALK );
        }

        public function testGetContentNamespaces() {
                $this->assertEquals(
                        array( NS_MAIN ),
                        MWNamespace::getcontentNamespaces(),
                        '$wgContentNamespaces is an array with only NS_MAIN by default'
                );

                global $wgContentNamespaces;

                $saved = $wgContentNamespaces;
                # test !is_array( $wgcontentNamespaces )
                $wgContentNamespaces = '';
                $this->assertEquals( NS_MAIN, MWNamespace::getcontentNamespaces() );
                $wgContentNamespaces = false;
                $this->assertEquals( NS_MAIN, MWNamespace::getcontentNamespaces() );
                $wgContentNamespaces = null;
                $this->assertEquals( NS_MAIN, MWNamespace::getcontentNamespaces() );
                $wgContentNamespaces = 5;
                $this->assertEquals( NS_MAIN, MWNamespace::getcontentNamespaces() );

                # test $wgContentNamespaces === array()
                $wgContentNamespaces = array();
                $this->assertEquals( NS_MAIN, MWNamespace::getcontentNamespaces() );

                # test !in_array( NS_MAIN, $wgContentNamespaces )
                $wgContentNamespaces = array( NS_USER, NS_CATEGORY );
                $this->assertEquals(
                        array( NS_MAIN, NS_USER, NS_CATEGORY ),
                        MWNamespace::getcontentNamespaces(),
                        'NS_MAIN is forced in $wgContentNamespaces even if unwanted'
                );

                # test other cases, return $wgcontentNamespaces as is
                $wgContentNamespaces = array( NS_MAIN );
                $this->assertEquals(
                        array( NS_MAIN ),
                        MWNamespace::getcontentNamespaces()
                );

                $wgContentNamespaces = array( NS_MAIN, NS_USER, NS_CATEGORY );
                $this->assertEquals(
                        array( NS_MAIN, NS_USER, NS_CATEGORY ),
                        MWNamespace::getcontentNamespaces()
                );

                $wgContentNamespaces = $saved;
        }

        public function testIsCapitalizedHardcodedAssertions() {
                // NS_MEDIA and NS_FILE are treated the same
                $this->assertEquals(
                        MWNamespace::isCapitalized( NS_MEDIA ),
                        MWNamespace::isCapitalized( NS_FILE  ),
                        'NS_MEDIA and NS_FILE have same capitalization rendering'
                );

                // Boths are capitalized by default
                $this->assertIsCapitalized( NS_MEDIA );
                $this->assertIsCapitalized( NS_FILE  );

                // Always capitalized namespaces
                // @see MWNamespace::$alwaysCapitalizedNamespaces
                $this->assertIsCapitalized( NS_SPECIAL   );
                $this->assertIsCapitalized( NS_USER      );
                $this->assertIsCapitalized( NS_MEDIAWIKI );
        }

        public function testIsCapitalizedWithWgCapitalLinks() {
                global $wgCapitalLinks;
                // Save the global to easily reset to MediaWiki default settings
                $savedGlobal = $wgCapitalLinks;

                $wgCapitalLinks = true;
                $this->assertIsCapitalized( NS_PROJECT      );
                $this->assertIsCapitalized( NS_PROJECT_TALK );

                $wgCapitalLinks = false;
                // hardcoded namespaces (see above function) are still capitalized:
                $this->assertIsCapitalized( NS_SPECIAL   );
                $this->assertIsCapitalized( NS_USER      );
                $this->assertIsCapitalized( NS_MEDIAWIKI );
                // setting is correctly applied
                $this->assertIsNotCapitalized( NS_PROJECT      );
                $this->assertIsNotCapitalized( NS_PROJECT_TALK );

                // reset global state:
                $wgCapitalLinks = $savedGlobal;
        }

        public function testIsCapitalizedWithWgCapitalLinkOverrides() {
                global $wgCapitalLinkOverrides;
                // Save the global to easily reset to MediaWiki default settings
                $savedGlobal = $wgCapitalLinkOverrides;

                // Test default settings
                $this->assertIsCapitalized( NS_PROJECT      );
                $this->assertIsCapitalized( NS_PROJECT_TALK );
                // hardcoded namespaces (see above function) are capitalized:
                $this->assertIsCapitalized( NS_SPECIAL   );
                $this->assertIsCapitalized( NS_USER      );
                $this->assertIsCapitalized( NS_MEDIAWIKI );

                // Hardcoded namespaces remains capitalized
                $wgCapitalLinkOverrides[NS_SPECIAL]   = false;
                $wgCapitalLinkOverrides[NS_USER]      = false;
                $wgCapitalLinkOverrides[NS_MEDIAWIKI] = false;
                $this->assertIsCapitalized( NS_SPECIAL   );
                $this->assertIsCapitalized( NS_USER      );
                $this->assertIsCapitalized( NS_MEDIAWIKI );

                $wgCapitalLinkOverrides = $savedGlobal;
                $wgCapitalLinkOverrides[NS_PROJECT] = false;
                $this->assertIsNotCapitalized( NS_PROJECT );
                $wgCapitalLinkOverrides[NS_PROJECT] = true ;
                $this->assertIsCapitalized( NS_PROJECT );
                unset(  $wgCapitalLinkOverrides[NS_PROJECT] );
                $this->assertIsCapitalized( NS_PROJECT );

                // reset global state:
                $wgCapitalLinkOverrides = $savedGlobal;
        }

        public function testHasGenderDistinction() {
                // Namespaces with gender distinctions
                $this->assertTrue( MWNamespace::hasGenderDistinction( NS_USER      ) );
                $this->assertTrue( MWNamespace::hasGenderDistinction( NS_USER_TALK ) );

                // Other ones, "genderless"
                $this->assertFalse( MWNamespace::hasGenderDistinction( NS_MEDIA   ) );
                $this->assertFalse( MWNamespace::hasGenderDistinction( NS_SPECIAL ) );
                $this->assertFalse( MWNamespace::hasGenderDistinction( NS_MAIN    ) );
                $this->assertFalse( MWNamespace::hasGenderDistinction( NS_TALK    ) );

        }

        ####### HELPERS ###########################################################
        function __call( $method, $args ) {
                // Call the real method if it exists
                if( method_exists($this, $method ) ) {
                        return $this->$method( $args );
                }

                if( preg_match( '/^assert(Has|Is|Can)(Not|)(Subject|Talk|Watchable|Content|Subpages|Capitalized)$/', $method, $m ) ) {
                        # Interprets arguments:
                        $ns  = $args[0];
                        $msg = isset($args[1]) ? $args[1] : " dummy message";

                        # Forge the namespace constant name:
                        if( $ns === 0 ) {
                                $ns_name = "NS_MAIN";
                        } else {
                                $ns_name = "NS_" . strtoupper(  MWNamespace::getCanonicalName( $ns ) );
                        }
                        # ... and the MWNamespace method name
                        $nsMethod = strtolower( $m[1] ) . $m[3];

                        $expect = ($m[2] === '');
                        $expect_name = $expect ? 'TRUE' : 'FALSE';

                        return $this->assertEquals( $expect,
                                MWNamespace::$nsMethod( $ns, $msg ),
                                "MWNamespace::$nsMethod( $ns_name ) should returns $expect_name"
                        );
                }

                throw new Exception( __METHOD__ . " could not find a method named $method\n" );
        }

        function assertSameSubject( $ns1, $ns2, $msg = '' ) {
                $this->assertTrue( MWNamespace::subjectEquals( $ns1, $ns2, $msg ) );
        }
        function assertDifferentSubject( $ns1, $ns2, $msg = '' ) {
                $this->assertFalse( MWNamespace::subjectEquals( $ns1, $ns2, $msg ) );
        }
}