src/net/proxy/proxy_resolver_v8_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/compiler_specific.h"
   6 #include "base/files/file_util.h"
   7 #include "base/path_service.h"
   8 #include "base/strings/string_util.h"
   9 #include "base/strings/stringprintf.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "net/base/net_errors.h"
  12 #include "net/base/net_log_unittest.h"
  13 #include "net/proxy/proxy_info.h"
  14 #include "net/proxy/proxy_resolver_v8.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16 #include "url/gurl.h"
  17
  18 namespace net {
  19 namespace {
  20
  21 // Javascript bindings for ProxyResolverV8, which returns mock values.
  22 // Each time one of the bindings is called into, we push the input into a
  23 // list, for later verification.
  24 class MockJSBindings : public ProxyResolverV8::JSBindings {
  25  public:
  26   MockJSBindings() : my_ip_address_count(0), my_ip_address_ex_count(0),
  27                      should_terminate(false) {}
  28
  29   void Alert(const base::string16& message) override {
  30     VLOG(1) << "PAC-alert: " << message;  // Helpful when debugging.
  31     alerts.push_back(base::UTF16ToUTF8(message));
  32   }
  33
  34   bool ResolveDns(const std::string& host,
  35                   ResolveDnsOperation op,
  36                   std::string* output,
  37                   bool* terminate) override {
  38     *terminate = should_terminate;
  39
  40     if (op == MY_IP_ADDRESS) {
  41       my_ip_address_count++;
  42       *output = my_ip_address_result;
  43       return !my_ip_address_result.empty();
  44     }
  45
  46     if (op == MY_IP_ADDRESS_EX) {
  47       my_ip_address_ex_count++;
  48       *output = my_ip_address_ex_result;
  49       return !my_ip_address_ex_result.empty();
  50     }
  51
  52     if (op == DNS_RESOLVE) {
  53       dns_resolves.push_back(host);
  54       *output = dns_resolve_result;
  55       return !dns_resolve_result.empty();
  56     }
  57
  58     if (op == DNS_RESOLVE_EX) {
  59       dns_resolves_ex.push_back(host);
  60       *output = dns_resolve_ex_result;
  61       return !dns_resolve_ex_result.empty();
  62     }
  63
  64     CHECK(false);
  65     return false;
  66   }
  67
  68   void OnError(int line_number, const base::string16& message) override {
  69     // Helpful when debugging.
  70     VLOG(1) << "PAC-error: [" << line_number << "] " << message;
  71
  72     errors.push_back(base::UTF16ToUTF8(message));
  73     errors_line_number.push_back(line_number);
  74   }
  75
  76   // Mock values to return.
  77   std::string my_ip_address_result;
  78   std::string my_ip_address_ex_result;
  79   std::string dns_resolve_result;
  80   std::string dns_resolve_ex_result;
  81
  82   // Inputs we got called with.
  83   std::vector<std::string> alerts;
  84   std::vector<std::string> errors;
  85   std::vector<int> errors_line_number;
  86   std::vector<std::string> dns_resolves;
  87   std::vector<std::string> dns_resolves_ex;
  88   int my_ip_address_count;
  89   int my_ip_address_ex_count;
  90
  91   // Whether ResolveDns() should terminate script execution.
  92   bool should_terminate;
  93 };
  94
  95 // This is the same as ProxyResolverV8, but it uses mock bindings in place of
  96 // the default bindings, and has a helper function to load PAC scripts from
  97 // disk.
  98 class ProxyResolverV8WithMockBindings : public ProxyResolverV8 {
  99  public:
 100   ProxyResolverV8WithMockBindings() {
 101     set_js_bindings(&mock_js_bindings_);
 102   }
 103
 104   ~ProxyResolverV8WithMockBindings() override {}
 105
 106   MockJSBindings* mock_js_bindings() {
 107     return &mock_js_bindings_;
 108   }
 109
 110   // Initialize with the PAC script data at |filename|.
 111   int SetPacScriptFromDisk(const char* filename) {
 112     base::FilePath path;
 113     PathService::Get(base::DIR_SOURCE_ROOT, &path);
 114     path = path.AppendASCII("net");
 115     path = path.AppendASCII("data");
 116     path = path.AppendASCII("proxy_resolver_v8_unittest");
 117     path = path.AppendASCII(filename);
 118
 119     // Try to read the file from disk.
 120     std::string file_contents;
 121     bool ok = base::ReadFileToString(path, &file_contents);
 122
 123     // If we can't load the file from disk, something is misconfigured.
 124     if (!ok) {
 125       LOG(ERROR) << "Failed to read file: " << path.value();
 126       return ERR_UNEXPECTED;
 127     }
 128
 129     // Load the PAC script into the ProxyResolver.
 130     return SetPacScript(ProxyResolverScriptData::FromUTF8(file_contents),
 131                         CompletionCallback());
 132   }
 133
 134  private:
 135   MockJSBindings mock_js_bindings_;
 136 };
 137
 138 // Doesn't really matter what these values are for many of the tests.
 139 const GURL kQueryUrl("http://www.google.com");
 140 const GURL kPacUrl;
 141
 142 TEST(ProxyResolverV8Test, Direct) {
 143   ProxyResolverV8WithMockBindings resolver;
 144   int result = resolver.SetPacScriptFromDisk("direct.js");
 145   EXPECT_EQ(OK, result);
 146
 147   ProxyInfo proxy_info;
 148   CapturingBoundNetLog log;
 149   result = resolver.GetProxyForURL(
 150       kQueryUrl, &proxy_info, CompletionCallback(), NULL, log.bound());
 151
 152   EXPECT_EQ(OK, result);
 153   EXPECT_TRUE(proxy_info.is_direct());
 154
 155   EXPECT_EQ(0U, resolver.mock_js_bindings()->alerts.size());
 156   EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 157
 158   net::CapturingNetLog::CapturedEntryList entries;
 159   log.GetEntries(&entries);
 160   // No bindings were called, so no log entries.
 161   EXPECT_EQ(0u, entries.size());
 162 }
 163
 164 TEST(ProxyResolverV8Test, ReturnEmptyString) {
 165   ProxyResolverV8WithMockBindings resolver;
 166   int result = resolver.SetPacScriptFromDisk("return_empty_string.js");
 167   EXPECT_EQ(OK, result);
 168
 169   ProxyInfo proxy_info;
 170   result = resolver.GetProxyForURL(
 171       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 172
 173   EXPECT_EQ(OK, result);
 174   EXPECT_TRUE(proxy_info.is_direct());
 175
 176   EXPECT_EQ(0U, resolver.mock_js_bindings()->alerts.size());
 177   EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 178 }
 179
 180 TEST(ProxyResolverV8Test, Basic) {
 181   ProxyResolverV8WithMockBindings resolver;
 182   int result = resolver.SetPacScriptFromDisk("passthrough.js");
 183   EXPECT_EQ(OK, result);
 184
 185   // The "FindProxyForURL" of this PAC script simply concatenates all of the
 186   // arguments into a pseudo-host. The purpose of this test is to verify that
 187   // the correct arguments are being passed to FindProxyForURL().
 188   {
 189     ProxyInfo proxy_info;
 190     result = resolver.GetProxyForURL(GURL("http://query.com/path"), &proxy_info,
 191                                      CompletionCallback(), NULL, BoundNetLog());
 192     EXPECT_EQ(OK, result);
 193     EXPECT_EQ("http.query.com.path.query.com:80",
 194               proxy_info.proxy_server().ToURI());
 195   }
 196   {
 197     ProxyInfo proxy_info;
 198     int result = resolver.GetProxyForURL(
 199         GURL("ftp://query.com:90/path"), &proxy_info, CompletionCallback(),
 200         NULL, BoundNetLog());
 201     EXPECT_EQ(OK, result);
 202     // Note that FindProxyForURL(url, host) does not expect |host| to contain
 203     // the port number.
 204     EXPECT_EQ("ftp.query.com.90.path.query.com:80",
 205               proxy_info.proxy_server().ToURI());
 206
 207     EXPECT_EQ(0U, resolver.mock_js_bindings()->alerts.size());
 208     EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 209   }
 210 }
 211
 212 TEST(ProxyResolverV8Test, BadReturnType) {
 213   // These are the filenames of PAC scripts which each return a non-string
 214   // types for FindProxyForURL(). They should all fail with
 215   // ERR_PAC_SCRIPT_FAILED.
 216   static const char* const filenames[] = {
 217       "return_undefined.js",
 218       "return_integer.js",
 219       "return_function.js",
 220       "return_object.js",
 221       // TODO(eroman): Should 'null' be considered equivalent to "DIRECT" ?
 222       "return_null.js"
 223   };
 224
 225   for (size_t i = 0; i < arraysize(filenames); ++i) {
 226     ProxyResolverV8WithMockBindings resolver;
 227     int result = resolver.SetPacScriptFromDisk(filenames[i]);
 228     EXPECT_EQ(OK, result);
 229
 230     ProxyInfo proxy_info;
 231     result = resolver.GetProxyForURL(
 232         kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 233
 234     EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 235
 236     MockJSBindings* bindings = resolver.mock_js_bindings();
 237     EXPECT_EQ(0U, bindings->alerts.size());
 238     ASSERT_EQ(1U, bindings->errors.size());
 239     EXPECT_EQ("FindProxyForURL() did not return a string.",
 240               bindings->errors[0]);
 241     EXPECT_EQ(-1, bindings->errors_line_number[0]);
 242   }
 243 }
 244
 245 // Try using a PAC script which defines no "FindProxyForURL" function.
 246 TEST(ProxyResolverV8Test, NoEntryPoint) {
 247   ProxyResolverV8WithMockBindings resolver;
 248   int result = resolver.SetPacScriptFromDisk("no_entrypoint.js");
 249   EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 250
 251   ProxyInfo proxy_info;
 252   result = resolver.GetProxyForURL(
 253       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 254
 255   EXPECT_EQ(ERR_FAILED, result);
 256 }
 257
 258 // Try loading a malformed PAC script.
 259 TEST(ProxyResolverV8Test, ParseError) {
 260   ProxyResolverV8WithMockBindings resolver;
 261   int result = resolver.SetPacScriptFromDisk("missing_close_brace.js");
 262   EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 263
 264   ProxyInfo proxy_info;
 265   result = resolver.GetProxyForURL(
 266       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 267
 268   EXPECT_EQ(ERR_FAILED, result);
 269
 270   MockJSBindings* bindings = resolver.mock_js_bindings();
 271   EXPECT_EQ(0U, bindings->alerts.size());
 272
 273   // We get one error during compilation.
 274   ASSERT_EQ(1U, bindings->errors.size());
 275
 276   EXPECT_EQ("Uncaught SyntaxError: Unexpected end of input",
 277             bindings->errors[0]);
 278   EXPECT_EQ(0, bindings->errors_line_number[0]);
 279 }
 280
 281 // Run a PAC script several times, which has side-effects.
 282 TEST(ProxyResolverV8Test, SideEffects) {
 283   ProxyResolverV8WithMockBindings resolver;
 284   int result = resolver.SetPacScriptFromDisk("side_effects.js");
 285
 286   // The PAC script increments a counter each time we invoke it.
 287   for (int i = 0; i < 3; ++i) {
 288     ProxyInfo proxy_info;
 289     result = resolver.GetProxyForURL(
 290         kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 291     EXPECT_EQ(OK, result);
 292     EXPECT_EQ(base::StringPrintf("sideffect_%d:80", i),
 293               proxy_info.proxy_server().ToURI());
 294   }
 295
 296   // Reload the script -- the javascript environment should be reset, hence
 297   // the counter starts over.
 298   result = resolver.SetPacScriptFromDisk("side_effects.js");
 299   EXPECT_EQ(OK, result);
 300
 301   for (int i = 0; i < 3; ++i) {
 302     ProxyInfo proxy_info;
 303     result = resolver.GetProxyForURL(
 304         kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 305     EXPECT_EQ(OK, result);
 306     EXPECT_EQ(base::StringPrintf("sideffect_%d:80", i),
 307               proxy_info.proxy_server().ToURI());
 308   }
 309 }
 310
 311 // Execute a PAC script which throws an exception in FindProxyForURL.
 312 TEST(ProxyResolverV8Test, UnhandledException) {
 313   ProxyResolverV8WithMockBindings resolver;
 314   int result = resolver.SetPacScriptFromDisk("unhandled_exception.js");
 315   EXPECT_EQ(OK, result);
 316
 317   ProxyInfo proxy_info;
 318   result = resolver.GetProxyForURL(
 319       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 320
 321   EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 322
 323   MockJSBindings* bindings = resolver.mock_js_bindings();
 324   EXPECT_EQ(0U, bindings->alerts.size());
 325   ASSERT_EQ(1U, bindings->errors.size());
 326   EXPECT_EQ("Uncaught ReferenceError: undefined_variable is not defined",
 327             bindings->errors[0]);
 328   EXPECT_EQ(3, bindings->errors_line_number[0]);
 329 }
 330
 331 TEST(ProxyResolverV8Test, ReturnUnicode) {
 332   ProxyResolverV8WithMockBindings resolver;
 333   int result = resolver.SetPacScriptFromDisk("return_unicode.js");
 334   EXPECT_EQ(OK, result);
 335
 336   ProxyInfo proxy_info;
 337   result = resolver.GetProxyForURL(
 338       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 339
 340   // The result from this resolve was unparseable, because it
 341   // wasn't ASCII.
 342   EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 343 }
 344
 345 // Test the PAC library functions that we expose in the JS environment.
 346 TEST(ProxyResolverV8Test, JavascriptLibrary) {
 347   ProxyResolverV8WithMockBindings resolver;
 348   int result = resolver.SetPacScriptFromDisk("pac_library_unittest.js");
 349   EXPECT_EQ(OK, result);
 350
 351   ProxyInfo proxy_info;
 352   result = resolver.GetProxyForURL(
 353       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 354
 355   // If the javascript side of this unit-test fails, it will throw a javascript
 356   // exception. Otherwise it will return "PROXY success:80".
 357   EXPECT_EQ(OK, result);
 358   EXPECT_EQ("success:80", proxy_info.proxy_server().ToURI());
 359
 360   EXPECT_EQ(0U, resolver.mock_js_bindings()->alerts.size());
 361   EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 362 }
 363
 364 // Try resolving when SetPacScriptByData() has not been called.
 365 TEST(ProxyResolverV8Test, NoSetPacScript) {
 366   ProxyResolverV8WithMockBindings resolver;
 367
 368   ProxyInfo proxy_info;
 369
 370   // Resolve should fail, as we are not yet initialized with a script.
 371   int result = resolver.GetProxyForURL(
 372       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 373   EXPECT_EQ(ERR_FAILED, result);
 374
 375   // Initialize it.
 376   result = resolver.SetPacScriptFromDisk("direct.js");
 377   EXPECT_EQ(OK, result);
 378
 379   // Resolve should now succeed.
 380   result = resolver.GetProxyForURL(
 381       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 382   EXPECT_EQ(OK, result);
 383
 384   // Clear it, by initializing with an empty string.
 385   resolver.SetPacScript(
 386       ProxyResolverScriptData::FromUTF16(base::string16()),
 387       CompletionCallback());
 388
 389   // Resolve should fail again now.
 390   result = resolver.GetProxyForURL(
 391       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 392   EXPECT_EQ(ERR_FAILED, result);
 393
 394   // Load a good script once more.
 395   result = resolver.SetPacScriptFromDisk("direct.js");
 396   EXPECT_EQ(OK, result);
 397   result = resolver.GetProxyForURL(
 398       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 399   EXPECT_EQ(OK, result);
 400
 401   EXPECT_EQ(0U, resolver.mock_js_bindings()->alerts.size());
 402   EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 403 }
 404
 405 // Test marshalling/un-marshalling of values between C++/V8.
 406 TEST(ProxyResolverV8Test, V8Bindings) {
 407   ProxyResolverV8WithMockBindings resolver;
 408   MockJSBindings* bindings = resolver.mock_js_bindings();
 409   bindings->dns_resolve_result = "127.0.0.1";
 410   int result = resolver.SetPacScriptFromDisk("bindings.js");
 411   EXPECT_EQ(OK, result);
 412
 413   ProxyInfo proxy_info;
 414   result = resolver.GetProxyForURL(
 415       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 416
 417   EXPECT_EQ(OK, result);
 418   EXPECT_TRUE(proxy_info.is_direct());
 419
 420   EXPECT_EQ(0U, resolver.mock_js_bindings()->errors.size());
 421
 422   // Alert was called 5 times.
 423   ASSERT_EQ(5U, bindings->alerts.size());
 424   EXPECT_EQ("undefined", bindings->alerts[0]);
 425   EXPECT_EQ("null", bindings->alerts[1]);
 426   EXPECT_EQ("undefined", bindings->alerts[2]);
 427   EXPECT_EQ("[object Object]", bindings->alerts[3]);
 428   EXPECT_EQ("exception from calling toString()", bindings->alerts[4]);
 429
 430   // DnsResolve was called 8 times, however only 2 of those were string
 431   // parameters. (so 6 of them failed immediately).
 432   ASSERT_EQ(2U, bindings->dns_resolves.size());
 433   EXPECT_EQ("", bindings->dns_resolves[0]);
 434   EXPECT_EQ("arg1", bindings->dns_resolves[1]);
 435
 436   // MyIpAddress was called two times.
 437   EXPECT_EQ(2, bindings->my_ip_address_count);
 438
 439   // MyIpAddressEx was called once.
 440   EXPECT_EQ(1, bindings->my_ip_address_ex_count);
 441
 442   // DnsResolveEx was called 2 times.
 443   ASSERT_EQ(2U, bindings->dns_resolves_ex.size());
 444   EXPECT_EQ("is_resolvable", bindings->dns_resolves_ex[0]);
 445   EXPECT_EQ("foobar", bindings->dns_resolves_ex[1]);
 446 }
 447
 448 // Test calling a binding (myIpAddress()) from the script's global scope.
 449 // http://crbug.com/40026
 450 TEST(ProxyResolverV8Test, BindingCalledDuringInitialization) {
 451   ProxyResolverV8WithMockBindings resolver;
 452
 453   int result = resolver.SetPacScriptFromDisk("binding_from_global.js");
 454   EXPECT_EQ(OK, result);
 455
 456   MockJSBindings* bindings = resolver.mock_js_bindings();
 457
 458   // myIpAddress() got called during initialization of the script.
 459   EXPECT_EQ(1, bindings->my_ip_address_count);
 460
 461   ProxyInfo proxy_info;
 462   result = resolver.GetProxyForURL(
 463       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 464
 465   EXPECT_EQ(OK, result);
 466   EXPECT_FALSE(proxy_info.is_direct());
 467   EXPECT_EQ("127.0.0.1:80", proxy_info.proxy_server().ToURI());
 468
 469   // Check that no other bindings were called.
 470   EXPECT_EQ(0U, bindings->errors.size());
 471   ASSERT_EQ(0U, bindings->alerts.size());
 472   ASSERT_EQ(0U, bindings->dns_resolves.size());
 473   EXPECT_EQ(0, bindings->my_ip_address_ex_count);
 474   ASSERT_EQ(0U, bindings->dns_resolves_ex.size());
 475 }
 476
 477 // Try loading a PAC script that ends with a comment and has no terminal
 478 // newline. This should not cause problems with the PAC utility functions
 479 // that we add to the script's environment.
 480 // http://crbug.com/22864
 481 TEST(ProxyResolverV8Test, EndsWithCommentNoNewline) {
 482   ProxyResolverV8WithMockBindings resolver;
 483   int result = resolver.SetPacScriptFromDisk("ends_with_comment.js");
 484   EXPECT_EQ(OK, result);
 485
 486   ProxyInfo proxy_info;
 487   result = resolver.GetProxyForURL(
 488       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 489
 490   EXPECT_EQ(OK, result);
 491   EXPECT_FALSE(proxy_info.is_direct());
 492   EXPECT_EQ("success:80", proxy_info.proxy_server().ToURI());
 493 }
 494
 495 // Try loading a PAC script that ends with a statement and has no terminal
 496 // newline. This should not cause problems with the PAC utility functions
 497 // that we add to the script's environment.
 498 // http://crbug.com/22864
 499 TEST(ProxyResolverV8Test, EndsWithStatementNoNewline) {
 500   ProxyResolverV8WithMockBindings resolver;
 501   int result = resolver.SetPacScriptFromDisk(
 502       "ends_with_statement_no_semicolon.js");
 503   EXPECT_EQ(OK, result);
 504
 505   ProxyInfo proxy_info;
 506   result = resolver.GetProxyForURL(
 507       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 508
 509   EXPECT_EQ(OK, result);
 510   EXPECT_FALSE(proxy_info.is_direct());
 511   EXPECT_EQ("success:3", proxy_info.proxy_server().ToURI());
 512 }
 513
 514 // Test the return values from myIpAddress(), myIpAddressEx(), dnsResolve(),
 515 // dnsResolveEx(), isResolvable(), isResolvableEx(), when the the binding
 516 // returns empty string (failure). This simulates the return values from
 517 // those functions when the underlying DNS resolution fails.
 518 TEST(ProxyResolverV8Test, DNSResolutionFailure) {
 519   ProxyResolverV8WithMockBindings resolver;
 520   int result = resolver.SetPacScriptFromDisk("dns_fail.js");
 521   EXPECT_EQ(OK, result);
 522
 523   ProxyInfo proxy_info;
 524   result = resolver.GetProxyForURL(
 525       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 526
 527   EXPECT_EQ(OK, result);
 528   EXPECT_FALSE(proxy_info.is_direct());
 529   EXPECT_EQ("success:80", proxy_info.proxy_server().ToURI());
 530 }
 531
 532 TEST(ProxyResolverV8Test, DNSResolutionOfInternationDomainName) {
 533   ProxyResolverV8WithMockBindings resolver;
 534   int result = resolver.SetPacScriptFromDisk("international_domain_names.js");
 535   EXPECT_EQ(OK, result);
 536
 537   // Execute FindProxyForURL().
 538   ProxyInfo proxy_info;
 539   result = resolver.GetProxyForURL(
 540       kQueryUrl, &proxy_info, CompletionCallback(), NULL, BoundNetLog());
 541
 542   EXPECT_EQ(OK, result);
 543   EXPECT_TRUE(proxy_info.is_direct());
 544
 545   // Check that the international domain name was converted to punycode
 546   // before passing it onto the bindings layer.
 547   MockJSBindings* bindings = resolver.mock_js_bindings();
 548
 549   ASSERT_EQ(1u, bindings->dns_resolves.size());
 550   EXPECT_EQ("xn--bcher-kva.ch", bindings->dns_resolves[0]);
 551
 552   ASSERT_EQ(1u, bindings->dns_resolves_ex.size());
 553   EXPECT_EQ("xn--bcher-kva.ch", bindings->dns_resolves_ex[0]);
 554 }
 555
 556 // Test that when resolving a URL which contains an IPv6 string literal, the
 557 // brackets are removed from the host before passing it down to the PAC script.
 558 // If we don't do this, then subsequent calls to dnsResolveEx(host) will be
 559 // doomed to fail since it won't correspond with a valid name.
 560 TEST(ProxyResolverV8Test, IPv6HostnamesNotBracketed) {
 561   ProxyResolverV8WithMockBindings resolver;
 562   int result = resolver.SetPacScriptFromDisk("resolve_host.js");
 563   EXPECT_EQ(OK, result);
 564
 565   ProxyInfo proxy_info;
 566   result = resolver.GetProxyForURL(
 567       GURL("http://[abcd::efff]:99/watsupdawg"), &proxy_info,
 568       CompletionCallback(), NULL, BoundNetLog());
 569
 570   EXPECT_EQ(OK, result);
 571   EXPECT_TRUE(proxy_info.is_direct());
 572
 573   // We called dnsResolveEx() exactly once, by passing through the "host"
 574   // argument to FindProxyForURL(). The brackets should have been stripped.
 575   ASSERT_EQ(1U, resolver.mock_js_bindings()->dns_resolves_ex.size());
 576   EXPECT_EQ("abcd::efff", resolver.mock_js_bindings()->dns_resolves_ex[0]);
 577 }
 578
 579 // Test that terminating a script within DnsResolve() leads to eventual
 580 // termination of the script. Also test that repeatedly calling terminate is
 581 // safe, and running the script again after termination still works.
 582 TEST(ProxyResolverV8Test, Terminate) {
 583   ProxyResolverV8WithMockBindings resolver;
 584   int result = resolver.SetPacScriptFromDisk("terminate.js");
 585   EXPECT_EQ(OK, result);
 586
 587   MockJSBindings* bindings = resolver.mock_js_bindings();
 588
 589   // Terminate script execution upon reaching dnsResolve(). Note that
 590   // termination may not take effect right away (so the subsequent dnsResolve()
 591   // and alert() may be run).
 592   bindings->should_terminate = true;
 593
 594   ProxyInfo proxy_info;
 595   result = resolver.GetProxyForURL(
 596       GURL("http://hang/"), &proxy_info,
 597       CompletionCallback(), NULL, BoundNetLog());
 598
 599   // The script execution was terminated.
 600   EXPECT_EQ(ERR_PAC_SCRIPT_FAILED, result);
 601
 602   EXPECT_EQ(1U, resolver.mock_js_bindings()->dns_resolves.size());
 603   EXPECT_GE(2U, resolver.mock_js_bindings()->dns_resolves_ex.size());
 604   EXPECT_GE(1U, bindings->alerts.size());
 605
 606   EXPECT_EQ(1U, bindings->errors.size());
 607
 608   // Termination shows up as an uncaught exception without any message.
 609   EXPECT_EQ("", bindings->errors[0]);
 610
 611   bindings->errors.clear();
 612
 613   // Try running the script again, this time with a different input which won't
 614   // cause a termination+hang.
 615   result = resolver.GetProxyForURL(
 616       GURL("http://kittens/"), &proxy_info,
 617       CompletionCallback(), NULL, BoundNetLog());
 618
 619   EXPECT_EQ(OK, result);
 620   EXPECT_EQ(0u, bindings->errors.size());
 621   EXPECT_EQ("kittens:88", proxy_info.proxy_server().ToURI());
 622 }
 623
 624 }  // namespace
 625 }  // namespace net