third_party/WebKit/Source/web/tests/PrerenderingTest.cpp

   1 /*
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  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "config.h"
  32
  33 #include "platform/testing/URLTestHelpers.h"
  34 #include "public/web/WebCache.h"
  35 #include "public/web/WebDocument.h"
  36 #include "public/web/WebElement.h"
  37 #include "public/web/WebFrame.h"
  38 #include "public/web/WebNode.h"
  39 #include "public/web/WebNodeList.h"
  40 #include "public/web/WebPrerendererClient.h"
  41 #include "public/web/WebScriptSource.h"
  42 #include "public/web/WebView.h"
  43 #include "public/web/WebViewClient.h"
  44 #include "web/tests/FrameTestHelpers.h"
  45
  46 #include "public/platform/Platform.h"
  47 #include "public/platform/WebPrerender.h"
  48 #include "public/platform/WebPrerenderingSupport.h"
  49 #include "public/platform/WebString.h"
  50 #include "public/platform/WebUnitTestSupport.h"
  51 #include "wtf/OwnPtr.h"
  52 #include <functional>
  53 #include <gtest/gtest.h>
  54 #include <list>
  55
  56 using namespace blink;
  57 using blink::URLTestHelpers::toKURL;
  58
  59 namespace {
  60
  61 WebURL toWebURL(const char* url)
  62 {
  63     return WebURL(toKURL(url));
  64 }
  65
  66 class TestPrerendererClient : public WebPrerendererClient {
  67 public:
  68     TestPrerendererClient() { }
  69     virtual ~TestPrerendererClient() { }
  70
  71     void setExtraDataForNextPrerender(WebPrerender::ExtraData* extraData)
  72     {
  73         ASSERT(!m_extraData);
  74         m_extraData = adoptPtr(extraData);
  75     }
  76
  77     WebPrerender releaseWebPrerender()
  78     {
  79         ASSERT(!m_webPrerenders.empty());
  80         WebPrerender retval(m_webPrerenders.front());
  81         m_webPrerenders.pop_front();
  82         return retval;
  83     }
  84
  85     bool empty() const
  86     {
  87         return m_webPrerenders.empty();
  88     }
  89
  90     void clear()
  91     {
  92         m_webPrerenders.clear();
  93     }
  94
  95 private:
  96     // From WebPrerendererClient:
  97     void willAddPrerender(WebPrerender* prerender) override
  98     {
  99         prerender->setExtraData(m_extraData.leakPtr());
 100
 101         ASSERT(!prerender->isNull());
 102         m_webPrerenders.push_back(*prerender);
 103     }
 104
 105     OwnPtr<WebPrerender::ExtraData> m_extraData;
 106     std::list<WebPrerender> m_webPrerenders;
 107 };
 108
 109 class TestPrerenderingSupport : public WebPrerenderingSupport {
 110 public:
 111     TestPrerenderingSupport()
 112     {
 113         initialize(this);
 114     }
 115
 116     ~TestPrerenderingSupport() override
 117     {
 118         shutdown();
 119     }
 120
 121     void clear()
 122     {
 123         m_addedPrerenders.clear();
 124         m_canceledPrerenders.clear();
 125         m_abandonedPrerenders.clear();
 126     }
 127
 128     size_t totalCount() const
 129     {
 130         return m_addedPrerenders.size() + m_canceledPrerenders.size() + m_abandonedPrerenders.size();
 131     }
 132
 133     size_t addCount(const WebPrerender& prerender) const
 134     {
 135         return std::count_if(m_addedPrerenders.begin(), m_addedPrerenders.end(), std::bind1st(WebPrerenderEqual(), prerender));
 136     }
 137
 138     size_t cancelCount(const WebPrerender& prerender) const
 139     {
 140         return std::count_if(m_canceledPrerenders.begin(), m_canceledPrerenders.end(), std::bind1st(WebPrerenderEqual(), prerender));
 141     }
 142
 143     size_t abandonCount(const WebPrerender& prerender) const
 144     {
 145         return std::count_if(m_abandonedPrerenders.begin(), m_abandonedPrerenders.end(), std::bind1st(WebPrerenderEqual(), prerender));
 146     }
 147
 148 private:
 149     class WebPrerenderEqual : public std::binary_function<WebPrerender, WebPrerender, bool> {
 150     public:
 151         bool operator()(const WebPrerender& first, const WebPrerender& second) const
 152         {
 153             return first.toPrerender() == second.toPrerender();
 154         }
 155     };
 156
 157     // From WebPrerenderingSupport:
 158     void add(const WebPrerender& prerender) override
 159     {
 160         m_addedPrerenders.push_back(prerender);
 161     }
 162
 163     void cancel(const WebPrerender& prerender) override
 164     {
 165         m_canceledPrerenders.push_back(prerender);
 166     }
 167
 168     void abandon(const WebPrerender& prerender) override
 169     {
 170         m_abandonedPrerenders.push_back(prerender);
 171     }
 172
 173     std::vector<WebPrerender> m_addedPrerenders;
 174     std::vector<WebPrerender> m_canceledPrerenders;
 175     std::vector<WebPrerender> m_abandonedPrerenders;
 176 };
 177
 178 class PrerenderingTest : public testing::Test {
 179 public:
 180     ~PrerenderingTest()
 181     {
 182         Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
 183     }
 184
 185     void initialize(const char* baseURL, const char* fileName)
 186     {
 187         URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(baseURL), WebString::fromUTF8(fileName));
 188         const bool RunJavascript = true;
 189         m_webViewHelper.initialize(RunJavascript);
 190         m_webViewHelper.webView()->setPrerendererClient(&m_prerendererClient);
 191
 192         FrameTestHelpers::loadFrame(m_webViewHelper.webView()->mainFrame(), std::string(baseURL) + fileName);
 193     }
 194
 195     void navigateAway()
 196     {
 197         FrameTestHelpers::loadFrame(m_webViewHelper.webView()->mainFrame(), "about:blank");
 198     }
 199
 200     void close()
 201     {
 202         m_webViewHelper.webView()->mainFrame()->collectGarbage();
 203         m_webViewHelper.reset();
 204
 205         WebCache::clear();
 206     }
 207
 208     WebElement console()
 209     {
 210         WebElement console = m_webViewHelper.webView()->mainFrame()->document().getElementById("console");
 211         ASSERT(console.hasHTMLTagName("UL"));
 212         return console;
 213     }
 214
 215     unsigned consoleLength()
 216     {
 217         return console().childNodes().length() - 1;
 218     }
 219
 220     std::string consoleAt(unsigned i)
 221     {
 222         ASSERT(consoleLength() > i);
 223
 224         WebNode consoleListItem = console().childNodes().item(1 + i);
 225         ASSERT(consoleListItem.isElementNode());
 226         ASSERT(consoleListItem.to<WebElement>().hasHTMLTagName("LI"));
 227         ASSERT(consoleListItem.hasChildNodes());
 228
 229         WebNode textNode = consoleListItem.firstChild();
 230         ASSERT(textNode.isTextNode());
 231
 232         return textNode.nodeValue().utf8().data();
 233     }
 234
 235     void executeScript(const char* code)
 236     {
 237         m_webViewHelper.webView()->mainFrame()->executeScript(WebScriptSource(WebString::fromUTF8(code)));
 238     }
 239
 240     TestPrerenderingSupport* prerenderingSupport()
 241     {
 242         return &m_prerenderingSupport;
 243     }
 244
 245     TestPrerendererClient* prerendererClient()
 246     {
 247         return &m_prerendererClient;
 248     }
 249
 250 private:
 251     TestPrerenderingSupport m_prerenderingSupport;
 252     TestPrerendererClient m_prerendererClient;
 253
 254     FrameTestHelpers::WebViewHelper m_webViewHelper;
 255 };
 256
 257 TEST_F(PrerenderingTest, SinglePrerender)
 258 {
 259     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 260
 261     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 262     EXPECT_FALSE(webPrerender.isNull());
 263     EXPECT_EQ(toWebURL("http://prerender.com/"), webPrerender.url());
 264     EXPECT_EQ(PrerenderRelTypePrerender, webPrerender.relTypes());
 265
 266     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 267     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 268
 269     webPrerender.didStartPrerender();
 270     EXPECT_EQ(1u, consoleLength());
 271     EXPECT_EQ("webkitprerenderstart", consoleAt(0));
 272
 273     webPrerender.didSendDOMContentLoadedForPrerender();
 274     EXPECT_EQ(2u, consoleLength());
 275     EXPECT_EQ("webkitprerenderdomcontentloaded", consoleAt(1));
 276
 277     webPrerender.didSendLoadForPrerender();
 278     EXPECT_EQ(3u, consoleLength());
 279     EXPECT_EQ("webkitprerenderload", consoleAt(2));
 280
 281     webPrerender.didStopPrerender();
 282     EXPECT_EQ(4u, consoleLength());
 283     EXPECT_EQ("webkitprerenderstop", consoleAt(3));
 284 }
 285
 286 TEST_F(PrerenderingTest, CancelPrerender)
 287 {
 288     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 289
 290     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 291     EXPECT_FALSE(webPrerender.isNull());
 292
 293     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 294     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 295
 296     executeScript("removePrerender()");
 297
 298     EXPECT_EQ(1u, prerenderingSupport()->cancelCount(webPrerender));
 299     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 300 }
 301
 302 TEST_F(PrerenderingTest, AbandonPrerender)
 303 {
 304     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 305
 306     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 307     EXPECT_FALSE(webPrerender.isNull());
 308
 309     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 310     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 311
 312     navigateAway();
 313
 314     EXPECT_EQ(1u, prerenderingSupport()->abandonCount(webPrerender));
 315     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 316
 317     // Check that the prerender does not emit an extra cancel when garbage-collecting everything.
 318     close();
 319
 320     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 321 }
 322
 323 TEST_F(PrerenderingTest, ExtraData)
 324 {
 325     class TestExtraData : public WebPrerender::ExtraData {
 326     public:
 327         explicit TestExtraData(bool* alive) : m_alive(alive)
 328         {
 329             *alive = true;
 330         }
 331
 332         ~TestExtraData() override { *m_alive = false; }
 333
 334     private:
 335         bool* m_alive;
 336     };
 337
 338     bool alive = false;
 339     {
 340         prerendererClient()->setExtraDataForNextPrerender(new TestExtraData(&alive));
 341         initialize("http://www.foo.com/", "prerender/single_prerender.html");
 342         EXPECT_TRUE(alive);
 343
 344         WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 345
 346         executeScript("removePrerender()");
 347         close();
 348         prerenderingSupport()->clear();
 349     }
 350     EXPECT_FALSE(alive);
 351 }
 352
 353 TEST_F(PrerenderingTest, TwoPrerenders)
 354 {
 355     initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 356
 357     WebPrerender firstPrerender = prerendererClient()->releaseWebPrerender();
 358     EXPECT_FALSE(firstPrerender.isNull());
 359     EXPECT_EQ(toWebURL("http://first-prerender.com/"), firstPrerender.url());
 360
 361     WebPrerender secondPrerender = prerendererClient()->releaseWebPrerender();
 362     EXPECT_FALSE(firstPrerender.isNull());
 363     EXPECT_EQ(toWebURL("http://second-prerender.com/"), secondPrerender.url());
 364
 365     EXPECT_EQ(1u, prerenderingSupport()->addCount(firstPrerender));
 366     EXPECT_EQ(1u, prerenderingSupport()->addCount(secondPrerender));
 367     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 368
 369     firstPrerender.didStartPrerender();
 370     EXPECT_EQ(1u, consoleLength());
 371     EXPECT_EQ("first_webkitprerenderstart", consoleAt(0));
 372
 373     secondPrerender.didStartPrerender();
 374     EXPECT_EQ(2u, consoleLength());
 375     EXPECT_EQ("second_webkitprerenderstart", consoleAt(1));
 376 }
 377
 378 TEST_F(PrerenderingTest, TwoPrerendersRemovingFirstThenNavigating)
 379 {
 380     initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 381
 382     WebPrerender firstPrerender = prerendererClient()->releaseWebPrerender();
 383     WebPrerender secondPrerender = prerendererClient()->releaseWebPrerender();
 384
 385     EXPECT_EQ(1u, prerenderingSupport()->addCount(firstPrerender));
 386     EXPECT_EQ(1u, prerenderingSupport()->addCount(secondPrerender));
 387     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 388
 389     executeScript("removeFirstPrerender()");
 390
 391     EXPECT_EQ(1u, prerenderingSupport()->cancelCount(firstPrerender));
 392     EXPECT_EQ(3u, prerenderingSupport()->totalCount());
 393
 394     navigateAway();
 395
 396     EXPECT_EQ(1u, prerenderingSupport()->abandonCount(secondPrerender));
 397     EXPECT_EQ(4u, prerenderingSupport()->totalCount());
 398 }
 399
 400 TEST_F(PrerenderingTest, TwoPrerendersAddingThird)
 401 {
 402     initialize("http://www.foo.com/", "prerender/multiple_prerenders.html");
 403
 404     WebPrerender firstPrerender = prerendererClient()->releaseWebPrerender();
 405     WebPrerender secondPrerender = prerendererClient()->releaseWebPrerender();
 406
 407     EXPECT_EQ(1u, prerenderingSupport()->addCount(firstPrerender));
 408     EXPECT_EQ(1u, prerenderingSupport()->addCount(secondPrerender));
 409     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 410
 411     executeScript("addThirdPrerender()");
 412
 413     WebPrerender thirdPrerender = prerendererClient()->releaseWebPrerender();
 414     EXPECT_EQ(1u, prerenderingSupport()->addCount(thirdPrerender));
 415     EXPECT_EQ(3u, prerenderingSupport()->totalCount());
 416 }
 417
 418 TEST_F(PrerenderingTest, ShortLivedClient)
 419 {
 420     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 421
 422     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 423     EXPECT_FALSE(webPrerender.isNull());
 424
 425     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 426     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 427
 428     navigateAway();
 429     close();
 430
 431     // This test passes if this next line doesn't crash.
 432     webPrerender.didStartPrerender();
 433 }
 434
 435 TEST_F(PrerenderingTest, FastRemoveElement)
 436 {
 437     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 438
 439     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 440     EXPECT_FALSE(webPrerender.isNull());
 441
 442     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 443     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 444
 445     // Race removing & starting the prerender against each other, as if the element was removed very quickly.
 446     executeScript("removePrerender()");
 447     EXPECT_FALSE(webPrerender.isNull());
 448     webPrerender.didStartPrerender();
 449
 450     // The page should be totally disconnected from the Prerender at this point, so the console should not have updated.
 451     EXPECT_EQ(0u, consoleLength());
 452 }
 453
 454 TEST_F(PrerenderingTest, MutateTarget)
 455 {
 456     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 457
 458     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 459     EXPECT_FALSE(webPrerender.isNull());
 460     EXPECT_EQ(toWebURL("http://prerender.com/"), webPrerender.url());
 461
 462     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 463     EXPECT_EQ(0u, prerenderingSupport()->cancelCount(webPrerender));
 464     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 465
 466     // Change the href of this prerender, make sure this is treated as a remove and add.
 467     executeScript("mutateTarget()");
 468     EXPECT_EQ(1u, prerenderingSupport()->cancelCount(webPrerender));
 469
 470     WebPrerender mutatedPrerender = prerendererClient()->releaseWebPrerender();
 471     EXPECT_EQ(toWebURL("http://mutated.com/"), mutatedPrerender.url());
 472     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 473     EXPECT_EQ(1u, prerenderingSupport()->addCount(mutatedPrerender));
 474     EXPECT_EQ(3u, prerenderingSupport()->totalCount());
 475 }
 476
 477 TEST_F(PrerenderingTest, MutateRel)
 478 {
 479     initialize("http://www.foo.com/", "prerender/single_prerender.html");
 480
 481     WebPrerender webPrerender = prerendererClient()->releaseWebPrerender();
 482     EXPECT_FALSE(webPrerender.isNull());
 483     EXPECT_EQ(toWebURL("http://prerender.com/"), webPrerender.url());
 484
 485     EXPECT_EQ(1u, prerenderingSupport()->addCount(webPrerender));
 486     EXPECT_EQ(0u, prerenderingSupport()->cancelCount(webPrerender));
 487     EXPECT_EQ(1u, prerenderingSupport()->totalCount());
 488
 489     // Change the rel of this prerender, make sure this is treated as a remove.
 490     executeScript("mutateRel()");
 491     EXPECT_EQ(1u, prerenderingSupport()->cancelCount(webPrerender));
 492     EXPECT_EQ(2u, prerenderingSupport()->totalCount());
 493 }
 494
 495 TEST_F(PrerenderingTest, RelNext)
 496 {
 497     initialize("http://www.foo.com/", "prerender/rel_next_prerender.html");
 498
 499     WebPrerender relNextOnly = prerendererClient()->releaseWebPrerender();
 500     EXPECT_EQ(toWebURL("http://rel-next-only.com/"), relNextOnly.url());
 501     EXPECT_EQ(PrerenderRelTypeNext, relNextOnly.relTypes());
 502
 503     WebPrerender relNextAndPrerender = prerendererClient()->releaseWebPrerender();
 504     EXPECT_EQ(toWebURL("http://rel-next-and-prerender.com/"), relNextAndPrerender.url());
 505     EXPECT_EQ(static_cast<unsigned>(PrerenderRelTypeNext | PrerenderRelTypePrerender), relNextAndPrerender.relTypes());
 506 }
 507
 508 } // namespace