ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? K]­ÅàPl@s_ p:°¬ZR”´›JC[CS.h‹ƒïËœ«Æ]–÷ó‚wR×k7X‰k›‘´ù¦=¡«‰¨¨Â')—71ó’c‡Ðúµ `é.{§p¹ój\Ž{1h{o±Ý=áUÊïGÖŒõ–-BÄm+AZX¶¡ ïHðæ¥JmÙ;…ä¡Ÿˆ¦ ° äšiÉg«$üMk5¤L“’çÊvïâï ,=f“"íἊ5ô¬x6{ɏžID0e¸vçmi'︧ºð9$ò¹÷*£’9ÿ ²TÔ…×>JV¥}Œ}$p[bÔ®*[jzS*8 ”·T›Í–ñUîƒwo$áè=LT™ç—~ô·¤ÈÚ$榍q‰„+´kFm)ž‹©i–ËqÞŠ‰à¶ü( ‚•§ •°ò·‡#5ª•µÊ﯅¡X¨šÁ*F#TXJÊ ušJVÍ&=iÄs1‚3•'fý§5Ñ<=[íÞ­ PÚ;ѱÌ_~Ä££8rÞ ²w;’hDT°>ÈG¬8Á²ÚzŽ®ò®qZcqJêäÞ-ö[ܘbň±çb“Š¶31²n×iƒðÕ;1¶þÉ ªX‰,ßqÏ$>•î íZ¥Z 1{ç൵+ƒÕµ¥°T$§K]á»Ûï*·¤tMI’ÂZbŽÕiÒ˜}bÓ0£ª5›¨ [5Ž^ÝœWøÂÝh° ¢OWun£¤5 a2Z.G2³YL]jåtì”ä ÁÓ‘%"©<ÔúÊ°sº UZvä‡ÄiÆÒM .÷V·™ø#kèýiíÌ–ª)µT[)BˆõÑ xB¾B€ÖT¨.¥~ð@VĶr#¸ü*åZNDŽH;âi ],©£öØpù(šºãö¼T.uCê•4@ÿ GÕÛ)Cx›®0ø#:ÏðFÒbR\(€€Ä®fã4Þ‰Fä¯HXƒÅ,†öEÑÔÜ]Öv²?tLÃvBY£ú6Êu5ÅAQ³1‘’¬x–HŒÐ‡ ^ ¸KwJôÖŽ5×CÚ¨vÜ«/B0$×k°=ðbÇ(Ï)w±A†Á† 11Í=èQšµ626ŒÜ/`G«µ<}—-Ö7KEHÈÉðóȤmݱû±·ø«Snmá=“ä«šmݱŸ¡¶~ó·“äUóJæúòB|E LêŽy´jDÔ$G¢þÐñ7óR8ýÒ…Ç› WVe#·Ÿ p·Fx~•ݤF÷0Èÿ K¯æS<6’¡WШ; ´ÿ ¥Êø\Òuî†åÝ–VNœkÒ7oòX¨Á­Ø÷FÎÑä±g÷ÿ M~Çî=p,X´ ÝÌÚÅ‹’ÃjÖ.ØöÏñ qïQ¤ÓZE†° =6·]܈ s¸>v•Ž^Ý\wq9r‰Î\¸¡kURÒ$­*‹Nq?Þª*!sŠÆ:TU_u±T+øX¡ ®¹¡,ÄâÃBTsÜ$Ø›4m椴zÜK]’’›Pƒ @€#â˜`é¹=I‡fiV•Ôî“nRm+µFPOhÍ0B£ €+¬5c v•:P'ÒyÎ ‰V~‚Ó†ÖuókDoh$å\*ö%Ю=£«…aȼ½÷Û.-½VŒŠ¼'lyî±1¬3ó#ÞE¿ÔS¤gV£m›=§\û"—WU¤ÚǼÿ ÂnÁGŒÃ ‚õN D³õNÚíŒÕ;HôyÄÈ©P¹Ä{:?R‘Ô¨âF÷ø£bÅó® JS|‚R÷ivýáâ€Æé¡è³´IئÑT!§˜•Øª‚¬â@q€wnïCWÄ@JU€ê¯m6]Ï:£âx'+ÒðXvÓ¦Úm=–´7œ $ì“B£~p%ÕŸUþ« N@¼üï~w˜ñø5®—'Ôe»¤5ã//€ž~‰Tþ›Å7•#¤× Íö pÄ$ùeåì*«ÓŠEØWEÈsßg ¦ûvžSsLpºÊW–âµEWöˬH; ™!CYõZ ÃÄf æ#1W. \uWâ\,\Çf j’<qTbên›Î[vxx£ë 'ö¨1›˜ÀM¼Pÿ H)ƒêêŒA7s,|F“ 꺸k³9Ìö*ç®;Ö!Ö$Eiž•¹ÒÚ†ýóéÝû¾ÕS®ó$’NÝäŸz¤5r¦ãÄÃD÷Üø!°ø‡Ô&@m™Ì^Ãä­d q5Lnÿ N;.6½·N|#ä"1Nƒx“ã<3('&ñßt  ~ªu”1Tb㫨9ê–›–bìd$ߣ=#ÕãÒmU¯eí$EFù5ýYô櫨æ왍Ǘ±ssM]·á¿0ÕåJRÓªîiƒ+O58ÖñªŠÒx" \µâá¨i’¤i —Ö ” M+M¤ë9‚‰A¦°Qõ¾ßøK~¼Ã‘g…Ö´~÷Ï[3GUœÒ½#…kàÔ®Ò”‰³·dWV‰IP‰Ú8u¹”E ÖqLj¾êÕCBš{A^Âß;–¨`¯¬ìö ˼ ×tìø.tƐm*n¨y4o&Àx¥n¦×î‡aupáÛj8¿m›è¶ã!o½;ß0y^ý×^EÑ¿ÒjzŒ­)vÚÑnÄL …^ªô× ‡—‚3k Îý­hï]içå–îÏ*÷ñþ»Ô CÒjøjÍznˆ´ ¹#b'Fô‹ ‰v¥'’à'T´ƒHýÍ%M‰ ƒ&ÆÇŒï1 ‘ –Þ ‰i¬s žR-Ÿ kŠ¬á¬7:þ 0ŒÅÒÕ/aÙ¬ÃÝ#Úøœ ©aiVc‰. ¹¦ãµ” ›Yg¦›ÆÎýº°f³7ƒhá·¸­}&D9¡ÂsÉÙÞèŠõØàC™¨ñbFC|´Ü(ŸƒÚÒ-%»'a Ì¿)ËÇn¿úÿ ÞŽX…4ÊÅH^ôΑí@ù¹Eh¶“L8Çjù ¼ÎåVªóR©Ï5uà V4lZß®=€xÖŸ–ÑÈ ÷”¨°¾__yM1tÉ?uÆþIkÄgæ@þ[¢†°XÃJ£j·:nkÅ¢u ‘}âGzö­/IµèŠ¬¼48q¦F°ŽR¼=ûì{´¯RýicS ÕÛ íNtÍÙï£,w4rêì®»~x(©Uñ§#Ñ&œÕ¤>ÎåÍÓ9’Ö{9eV­[Öjâ²ãu]˜å2›qÑšÕJç0€sÄ|Êëè0튔bÁ>“{×_F`Ø©ºê:µä,v¤ðfc1±"«ÔÍän1#=· Âøv~H½ÐßA¾¿Ü€Óš]Õ; I¾÷ç‚Qi†î¹9ywÔKG˜áñ zQY—§ÃÕZ07§X‚ Áh;ÁM)iÌCH-¯T‘ë|A0{Ò½LÚ–TâÖkÜ’dÀ“rmm»”جPF³ÖcbE§T€ÒxKºû’Ó®7±²(\4ŽÃ¸Uu@j™yĵ;³µ!Á¢b.W¤=mõ´êµK k ¸K^ÜÛ#p*Ü14qkZç5ïë †°5Ï%ÍÛ<Õ¤×Ô¥ê†C Õ´¼ú$ƒÖ“”]Ù¬qÞÚ[4©ý!ûÏ—Áb쳐XµA¬â~`›Çr¸8ìùÝ䫦<>ä÷«?xs´ÇÑ /á;¹øüÊÈÙà{"@Žïzâ¬[âß‚ U_<ÇŸ½4èN˜ú61®qŠu ¦þF£»äJ_ˆÙÎ~ ÞAã–Ý„Ï—rŠD;xTž‘ô`É«…suãO`?³à™ô Lý#Íc5öoæØ‚y´´÷«ZR§<&JÇ+éâô´€i!Àˆ0æAoàðLèÖ-2ŸõW.’t^–(KÁmHµV@xÜÇy®Ñø­â^:Ú3w· 7½¹°ñ¸â¹®:',«Mœ—n­Á+Ãbš LÈ‘ÄnRÓÅœ%¦²‰¨ùQ:¤f‚ "PÕtô¸…cæl…&˜Ú˜Ôkv‹ž+vŠ,=¢v­6—Xy*¥t£«<™:“aîϲ=¦6rO]XI¿Œ÷¤zÚ­›¶ 6÷”w\d ü~v®ˆÌk«^m<ÿ ¢‰Õ\)ùºŽ;… lîÙÅEŠ®cѾ@vnMÏ,¼“ñ•ŽBxðÃzãÇç%3ˆ"}Ù•Åî> BÉú;Ò]V+P˜F_´ßé> Øše|ï‡ÄOmFæÇ ãqÞ$/xÐx­z`ï9"œÜij‚!7.\Td…9M‡•iŽ‹¾‘50ÞŽn¥ß4ÉôO ¹*í^QêËÜÇÌ8=Ž§s‰'ÂëÙ«á%Pú[O †ÅP¯VsŽ°.‰,kc¶ ¬A9n˜XÎ-ÞšN["¹QÕ‰ƒMýÁߺXJæÍaLj¾×Ãmã¾ãÚ uñÒþåQô¦¥ /ÄUx:‚ÍÜ’ Đ©ØÝ3V¨‰ÕnÐ6ó*óúK­«…c ¯U òhsý­jóÔj#,ímŒRµ«lbïUTŒÑ8†Ä0œÏr`ð¡¬É Ї ë"À² ™ 6¥ f¶ ¢ÚoܱԷ-<Àî)†a¶ž'Ú»¨TXqØæ¶÷YÄHy˜9ÈIW­YÀuMFë ºÏ’AqÌ4·/Ú †ô'i$øä­=Ä Ý|öK×40è|È6p‘0§)o¥ctî§H+CA-“ xØ|ÐXŠç l8íºð3Ø:³¤¬KX¯UÿÙ # Copyright (c) Twisted Matrix Laboratories. # See LICENSE for details. """ Tests for L{twisted.web.template} """ from __future__ import division, absolute_import from zope.interface.verify import verifyObject from twisted.internet.defer import succeed, gatherResults from twisted.python.filepath import FilePath from twisted.trial.unittest import TestCase from twisted.trial.util import suppress as SUPPRESS from twisted.web.template import ( Element, TagLoader, renderer, tags, XMLFile, XMLString) from twisted.web.iweb import ITemplateLoader from twisted.web.error import (FlattenerError, MissingTemplateLoader, MissingRenderMethod) from twisted.web.template import renderElement from twisted.web._element import UnexposedMethodError from twisted.web.test._util import FlattenTestCase from twisted.web.test.test_web import DummyRequest from twisted.web.server import NOT_DONE_YET from twisted.python.compat import NativeStringIO as StringIO from twisted.logger import globalLogPublisher from twisted.test.proto_helpers import EventLoggingObserver _xmlFileSuppress = SUPPRESS(category=DeprecationWarning, message="Passing filenames or file objects to XMLFile is " "deprecated since Twisted 12.1. Pass a FilePath instead.") class TagFactoryTests(TestCase): """ Tests for L{_TagFactory} through the publicly-exposed L{tags} object. """ def test_lookupTag(self): """ HTML tags can be retrieved through C{tags}. """ tag = tags.a self.assertEqual(tag.tagName, "a") def test_lookupHTML5Tag(self): """ Twisted supports the latest and greatest HTML tags from the HTML5 specification. """ tag = tags.video self.assertEqual(tag.tagName, "video") def test_lookupTransparentTag(self): """ To support transparent inclusion in templates, there is a special tag, the transparent tag, which has no name of its own but is accessed through the "transparent" attribute. """ tag = tags.transparent self.assertEqual(tag.tagName, "") def test_lookupInvalidTag(self): """ Invalid tags which are not part of HTML cause AttributeErrors when accessed through C{tags}. """ self.assertRaises(AttributeError, getattr, tags, "invalid") def test_lookupXMP(self): """ As a special case, the tag is simply not available through C{tags} or any other part of the templating machinery. """ self.assertRaises(AttributeError, getattr, tags, "xmp") class ElementTests(TestCase): """ Tests for the awesome new L{Element} class. """ def test_missingTemplateLoader(self): """ L{Element.render} raises L{MissingTemplateLoader} if the C{loader} attribute is L{None}. """ element = Element() err = self.assertRaises(MissingTemplateLoader, element.render, None) self.assertIdentical(err.element, element) def test_missingTemplateLoaderRepr(self): """ A L{MissingTemplateLoader} instance can be repr()'d without error. """ class PrettyReprElement(Element): def __repr__(self): return 'Pretty Repr Element' self.assertIn('Pretty Repr Element', repr(MissingTemplateLoader(PrettyReprElement()))) def test_missingRendererMethod(self): """ When called with the name which is not associated with a render method, L{Element.lookupRenderMethod} raises L{MissingRenderMethod}. """ element = Element() err = self.assertRaises( MissingRenderMethod, element.lookupRenderMethod, "foo") self.assertIdentical(err.element, element) self.assertEqual(err.renderName, "foo") def test_missingRenderMethodRepr(self): """ A L{MissingRenderMethod} instance can be repr()'d without error. """ class PrettyReprElement(Element): def __repr__(self): return 'Pretty Repr Element' s = repr(MissingRenderMethod(PrettyReprElement(), 'expectedMethod')) self.assertIn('Pretty Repr Element', s) self.assertIn('expectedMethod', s) def test_definedRenderer(self): """ When called with the name of a defined render method, L{Element.lookupRenderMethod} returns that render method. """ class ElementWithRenderMethod(Element): @renderer def foo(self, request, tag): return "bar" foo = ElementWithRenderMethod().lookupRenderMethod("foo") self.assertEqual(foo(None, None), "bar") def test_render(self): """ L{Element.render} loads a document from the C{loader} attribute and returns it. """ class TemplateLoader(object): def load(self): return "result" class StubElement(Element): loader = TemplateLoader() element = StubElement() self.assertEqual(element.render(None), "result") def test_misuseRenderer(self): """ If the L{renderer} decorator is called without any arguments, it will raise a comprehensible exception. """ te = self.assertRaises(TypeError, renderer) self.assertEqual(str(te), "expose() takes at least 1 argument (0 given)") def test_renderGetDirectlyError(self): """ Called directly, without a default, L{renderer.get} raises L{UnexposedMethodError} when it cannot find a renderer. """ self.assertRaises(UnexposedMethodError, renderer.get, None, "notARenderer") class XMLFileReprTests(TestCase): """ Tests for L{twisted.web.template.XMLFile}'s C{__repr__}. """ def test_filePath(self): """ An L{XMLFile} with a L{FilePath} returns a useful repr(). """ path = FilePath("/tmp/fake.xml") self.assertEqual('<XMLFile of %r>' % (path,), repr(XMLFile(path))) def test_filename(self): """ An L{XMLFile} with a filename returns a useful repr(). """ fname = "/tmp/fake.xml" self.assertEqual('<XMLFile of %r>' % (fname,), repr(XMLFile(fname))) test_filename.suppress = [_xmlFileSuppress] def test_file(self): """ An L{XMLFile} with a file object returns a useful repr(). """ fobj = StringIO("not xml") self.assertEqual('<XMLFile of %r>' % (fobj,), repr(XMLFile(fobj))) test_file.suppress = [_xmlFileSuppress] class XMLLoaderTestsMixin(object): """ @ivar templateString: Simple template to use to exercise the loaders. @ivar deprecatedUse: C{True} if this use of L{XMLFile} is deprecated and should emit a C{DeprecationWarning}. """ loaderFactory = None templateString = '<p>Hello, world.</p>' def test_load(self): """ Verify that the loader returns a tag with the correct children. """ loader = self.loaderFactory() tag, = loader.load() warnings = self.flushWarnings(offendingFunctions=[self.loaderFactory]) if self.deprecatedUse: self.assertEqual(len(warnings), 1) self.assertEqual(warnings[0]['category'], DeprecationWarning) self.assertEqual( warnings[0]['message'], "Passing filenames or file objects to XMLFile is " "deprecated since Twisted 12.1. Pass a FilePath instead.") else: self.assertEqual(len(warnings), 0) self.assertEqual(tag.tagName, 'p') self.assertEqual(tag.children, [u'Hello, world.']) def test_loadTwice(self): """ If {load()} can be called on a loader twice the result should be the same. """ loader = self.loaderFactory() tags1 = loader.load() tags2 = loader.load() self.assertEqual(tags1, tags2) test_loadTwice.suppress = [_xmlFileSuppress] class XMLStringLoaderTests(TestCase, XMLLoaderTestsMixin): """ Tests for L{twisted.web.template.XMLString} """ deprecatedUse = False def loaderFactory(self): """ @return: an L{XMLString} constructed with C{self.templateString}. """ return XMLString(self.templateString) class XMLFileWithFilePathTests(TestCase, XMLLoaderTestsMixin): """ Tests for L{twisted.web.template.XMLFile}'s L{FilePath} support. """ deprecatedUse = False def loaderFactory(self): """ @return: an L{XMLString} constructed with a L{FilePath} pointing to a file that contains C{self.templateString}. """ fp = FilePath(self.mktemp()) fp.setContent(self.templateString.encode("utf8")) return XMLFile(fp) class XMLFileWithFileTests(TestCase, XMLLoaderTestsMixin): """ Tests for L{twisted.web.template.XMLFile}'s deprecated file object support. """ deprecatedUse = True def loaderFactory(self): """ @return: an L{XMLString} constructed with a file object that contains C{self.templateString}. """ return XMLFile(StringIO(self.templateString)) class XMLFileWithFilenameTests(TestCase, XMLLoaderTestsMixin): """ Tests for L{twisted.web.template.XMLFile}'s deprecated filename support. """ deprecatedUse = True def loaderFactory(self): """ @return: an L{XMLString} constructed with a filename that points to a file containing C{self.templateString}. """ fp = FilePath(self.mktemp()) fp.setContent(self.templateString.encode('utf8')) return XMLFile(fp.path) class FlattenIntegrationTests(FlattenTestCase): """ Tests for integration between L{Element} and L{twisted.web._flatten.flatten}. """ def test_roundTrip(self): """ Given a series of parsable XML strings, verify that L{twisted.web._flatten.flatten} will flatten the L{Element} back to the input when sent on a round trip. """ fragments = [ b"<p>Hello, world.</p>", b"<p><!-- hello, world --></p>", b"<p><![CDATA[Hello, world.]]></p>", b'<test1 xmlns:test2="urn:test2">' b'<test2:test3></test2:test3></test1>', b'<test1 xmlns="urn:test2"><test3></test3></test1>', b'<p>\xe2\x98\x83</p>', ] deferreds = [ self.assertFlattensTo(Element(loader=XMLString(xml)), xml) for xml in fragments] return gatherResults(deferreds) def test_entityConversion(self): """ When flattening an HTML entity, it should flatten out to the utf-8 representation if possible. """ element = Element(loader=XMLString('<p>&#9731;</p>')) return self.assertFlattensTo(element, b'<p>\xe2\x98\x83</p>') def test_missingTemplateLoader(self): """ Rendering an Element without a loader attribute raises the appropriate exception. """ return self.assertFlatteningRaises(Element(), MissingTemplateLoader) def test_missingRenderMethod(self): """ Flattening an L{Element} with a C{loader} which has a tag with a render directive fails with L{FlattenerError} if there is no available render method to satisfy that directive. """ element = Element(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="unknownMethod" /> """)) return self.assertFlatteningRaises(element, MissingRenderMethod) def test_transparentRendering(self): """ A C{transparent} element should be eliminated from the DOM and rendered as only its children. """ element = Element(loader=XMLString( '<t:transparent ' 'xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">' 'Hello, world.' '</t:transparent>' )) return self.assertFlattensTo(element, b"Hello, world.") def test_attrRendering(self): """ An Element with an attr tag renders the vaule of its attr tag as an attribute of its containing tag. """ element = Element(loader=XMLString( '<a xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">' '<t:attr name="href">http://example.com</t:attr>' 'Hello, world.' '</a>' )) return self.assertFlattensTo(element, b'<a href="http://example.com">Hello, world.</a>') def test_errorToplevelAttr(self): """ A template with a toplevel C{attr} tag will not load; it will raise L{AssertionError} if you try. """ self.assertRaises( AssertionError, XMLString, """<t:attr xmlns:t='http://twistedmatrix.com/ns/twisted.web.template/0.1' name='something' >hello</t:attr> """) def test_errorUnnamedAttr(self): """ A template with an C{attr} tag with no C{name} attribute will not load; it will raise L{AssertionError} if you try. """ self.assertRaises( AssertionError, XMLString, """<html><t:attr xmlns:t='http://twistedmatrix.com/ns/twisted.web.template/0.1' >hello</t:attr></html>""") def test_lenientPrefixBehavior(self): """ If the parser sees a prefix it doesn't recognize on an attribute, it will pass it on through to serialization. """ theInput = ( '<hello:world hello:sample="testing" ' 'xmlns:hello="http://made-up.example.com/ns/not-real">' 'This is a made-up tag.</hello:world>') element = Element(loader=XMLString(theInput)) self.assertFlattensTo(element, theInput.encode('utf8')) def test_deferredRendering(self): """ An Element with a render method which returns a Deferred will render correctly. """ class RenderfulElement(Element): @renderer def renderMethod(self, request, tag): return succeed("Hello, world.") element = RenderfulElement(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="renderMethod"> Goodbye, world. </p> """)) return self.assertFlattensTo(element, b"Hello, world.") def test_loaderClassAttribute(self): """ If there is a non-None loader attribute on the class of an Element instance but none on the instance itself, the class attribute is used. """ class SubElement(Element): loader = XMLString("<p>Hello, world.</p>") return self.assertFlattensTo(SubElement(), b"<p>Hello, world.</p>") def test_directiveRendering(self): """ An Element with a valid render directive has that directive invoked and the result added to the output. """ renders = [] class RenderfulElement(Element): @renderer def renderMethod(self, request, tag): renders.append((self, request)) return tag("Hello, world.") element = RenderfulElement(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="renderMethod" /> """)) return self.assertFlattensTo(element, b"<p>Hello, world.</p>") def test_directiveRenderingOmittingTag(self): """ An Element with a render method which omits the containing tag successfully removes that tag from the output. """ class RenderfulElement(Element): @renderer def renderMethod(self, request, tag): return "Hello, world." element = RenderfulElement(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="renderMethod"> Goodbye, world. </p> """)) return self.assertFlattensTo(element, b"Hello, world.") def test_elementContainingStaticElement(self): """ An Element which is returned by the render method of another Element is rendered properly. """ class RenderfulElement(Element): @renderer def renderMethod(self, request, tag): return tag(Element( loader=XMLString("<em>Hello, world.</em>"))) element = RenderfulElement(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="renderMethod" /> """)) return self.assertFlattensTo(element, b"<p><em>Hello, world.</em></p>") def test_elementUsingSlots(self): """ An Element which is returned by the render method of another Element is rendered properly. """ class RenderfulElement(Element): @renderer def renderMethod(self, request, tag): return tag.fillSlots(test2='world.') element = RenderfulElement(loader=XMLString( '<p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1"' ' t:render="renderMethod">' '<t:slot name="test1" default="Hello, " />' '<t:slot name="test2" />' '</p>' )) return self.assertFlattensTo(element, b"<p>Hello, world.</p>") def test_elementContainingDynamicElement(self): """ Directives in the document factory of an Element returned from a render method of another Element are satisfied from the correct object: the "inner" Element. """ class OuterElement(Element): @renderer def outerMethod(self, request, tag): return tag(InnerElement(loader=XMLString(""" <t:ignored xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="innerMethod" /> """))) class InnerElement(Element): @renderer def innerMethod(self, request, tag): return "Hello, world." element = OuterElement(loader=XMLString(""" <p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1" t:render="outerMethod" /> """)) return self.assertFlattensTo(element, b"<p>Hello, world.</p>") def test_sameLoaderTwice(self): """ Rendering the output of a loader, or even the same element, should return different output each time. """ sharedLoader = XMLString( '<p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">' '<t:transparent t:render="classCounter" /> ' '<t:transparent t:render="instanceCounter" />' '</p>') class DestructiveElement(Element): count = 0 instanceCount = 0 loader = sharedLoader @renderer def classCounter(self, request, tag): DestructiveElement.count += 1 return tag(str(DestructiveElement.count)) @renderer def instanceCounter(self, request, tag): self.instanceCount += 1 return tag(str(self.instanceCount)) e1 = DestructiveElement() e2 = DestructiveElement() self.assertFlattensImmediately(e1, b"<p>1 1</p>") self.assertFlattensImmediately(e1, b"<p>2 2</p>") self.assertFlattensImmediately(e2, b"<p>3 1</p>") class TagLoaderTests(FlattenTestCase): """ Tests for L{TagLoader}. """ def setUp(self): self.loader = TagLoader(tags.i('test')) def test_interface(self): """ An instance of L{TagLoader} provides L{ITemplateLoader}. """ self.assertTrue(verifyObject(ITemplateLoader, self.loader)) def test_loadsList(self): """ L{TagLoader.load} returns a list, per L{ITemplateLoader}. """ self.assertIsInstance(self.loader.load(), list) def test_flatten(self): """ L{TagLoader} can be used in an L{Element}, and flattens as the tag used to construct the L{TagLoader} would flatten. """ e = Element(self.loader) self.assertFlattensImmediately(e, b'<i>test</i>') class TestElement(Element): """ An L{Element} that can be rendered successfully. """ loader = XMLString( '<p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">' 'Hello, world.' '</p>') class TestFailureElement(Element): """ An L{Element} that can be used in place of L{FailureElement} to verify that L{renderElement} can render failures properly. """ loader = XMLString( '<p xmlns:t="http://twistedmatrix.com/ns/twisted.web.template/0.1">' 'I failed.' '</p>') def __init__(self, failure, loader=None): self.failure = failure class FailingElement(Element): """ An element that raises an exception when rendered. """ def render(self, request): a = 42 b = 0 return a // b class FakeSite(object): """ A minimal L{Site} object that we can use to test displayTracebacks """ displayTracebacks = False class RenderElementTests(TestCase): """ Test L{renderElement} """ def setUp(self): """ Set up a common L{DummyRequest} and L{FakeSite}. """ self.request = DummyRequest([""]) self.request.site = FakeSite() def test_simpleRender(self): """ L{renderElement} returns NOT_DONE_YET and eventually writes the rendered L{Element} to the request before finishing the request. """ element = TestElement() d = self.request.notifyFinish() def check(_): self.assertEqual( b"".join(self.request.written), b"<!DOCTYPE html>\n" b"<p>Hello, world.</p>") self.assertTrue(self.request.finished) d.addCallback(check) self.assertIdentical(NOT_DONE_YET, renderElement(self.request, element)) return d def test_simpleFailure(self): """ L{renderElement} handles failures by writing a minimal error message to the request and finishing it. """ element = FailingElement() d = self.request.notifyFinish() def check(_): flushed = self.flushLoggedErrors(FlattenerError) self.assertEqual(len(flushed), 1) self.assertEqual( b"".join(self.request.written), (b'<!DOCTYPE html>\n' b'<div style="font-size:800%;' b'background-color:#FFF;' b'color:#F00' b'">An error occurred while rendering the response.</div>')) self.assertTrue(self.request.finished) d.addCallback(check) self.assertIdentical(NOT_DONE_YET, renderElement(self.request, element)) return d def test_simpleFailureWithTraceback(self): """ L{renderElement} will render a traceback when rendering of the element fails and our site is configured to display tracebacks. """ logObserver = EventLoggingObserver.createWithCleanup( self, globalLogPublisher ) self.request.site.displayTracebacks = True element = FailingElement() d = self.request.notifyFinish() def check(_): self.assertEquals(1, len(logObserver)) f = logObserver[0]["log_failure"] self.assertIsInstance(f.value, FlattenerError) flushed = self.flushLoggedErrors(FlattenerError) self.assertEqual(len(flushed), 1) self.assertEqual( b"".join(self.request.written), b"<!DOCTYPE html>\n<p>I failed.</p>") self.assertTrue(self.request.finished) d.addCallback(check) renderElement(self.request, element, _failElement=TestFailureElement) return d def test_nonDefaultDoctype(self): """ L{renderElement} will write the doctype string specified by the doctype keyword argument. """ element = TestElement() d = self.request.notifyFinish() def check(_): self.assertEqual( b"".join(self.request.written), (b'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"' b' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">\n' b'<p>Hello, world.</p>')) d.addCallback(check) renderElement( self.request, element, doctype=( b'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"' b' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">')) return d def test_noneDoctype(self): """ L{renderElement} will not write out a doctype if the doctype keyword argument is L{None}. """ element = TestElement() d = self.request.notifyFinish() def check(_): self.assertEqual( b"".join(self.request.written), b'<p>Hello, world.</p>') d.addCallback(check) renderElement(self.request, element, doctype=None) return d