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| 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 "net/dns/single_request_host_resolver.h" | |
| 6 | |
| 7 #include "net/base/address_list.h" | |
| 8 #include "net/base/net_errors.h" | |
| 9 #include "net/base/net_log.h" | |
| 10 #include "net/base/test_completion_callback.h" | |
| 11 #include "net/dns/mock_host_resolver.h" | |
| 12 #include "testing/gtest/include/gtest/gtest.h" | |
| 13 | |
| 14 namespace net { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 // Helper class used by SingleRequestHostResolverTest.Cancel test. | |
| 19 // It checks that only one request is outstanding at a time, and that | |
| 20 // it is cancelled before the class is destroyed. | |
| 21 class HangingHostResolver : public HostResolver { | |
| 22 public: | |
| 23 HangingHostResolver() : outstanding_request_(NULL) {} | |
| 24 | |
| 25 ~HangingHostResolver() override { EXPECT_TRUE(!has_outstanding_request()); } | |
| 26 | |
| 27 bool has_outstanding_request() const { | |
| 28 return outstanding_request_ != NULL; | |
| 29 } | |
| 30 | |
| 31 int Resolve(const RequestInfo& info, | |
| 32 RequestPriority priority, | |
| 33 AddressList* addresses, | |
| 34 const CompletionCallback& callback, | |
| 35 RequestHandle* out_req, | |
| 36 const BoundNetLog& net_log) override { | |
| 37 EXPECT_FALSE(has_outstanding_request()); | |
| 38 outstanding_request_ = reinterpret_cast<RequestHandle>(0x1234); | |
| 39 *out_req = outstanding_request_; | |
| 40 | |
| 41 // Never complete this request! Caller is expected to cancel it | |
| 42 // before destroying the resolver. | |
| 43 return ERR_IO_PENDING; | |
| 44 } | |
| 45 | |
| 46 int ResolveFromCache(const RequestInfo& info, | |
| 47 AddressList* addresses, | |
| 48 const BoundNetLog& net_log) override { | |
| 49 NOTIMPLEMENTED(); | |
| 50 return ERR_UNEXPECTED; | |
| 51 } | |
| 52 | |
| 53 void CancelRequest(RequestHandle req) override { | |
| 54 EXPECT_TRUE(has_outstanding_request()); | |
| 55 EXPECT_EQ(req, outstanding_request_); | |
| 56 outstanding_request_ = NULL; | |
| 57 } | |
| 58 | |
| 59 private: | |
| 60 RequestHandle outstanding_request_; | |
| 61 | |
| 62 DISALLOW_COPY_AND_ASSIGN(HangingHostResolver); | |
| 63 }; | |
| 64 | |
| 65 // Test that a regular end-to-end lookup returns the expected result. | |
| 66 TEST(SingleRequestHostResolverTest, NormalResolve) { | |
| 67 // Create a host resolver dependency that returns address "199.188.1.166" | |
| 68 // for resolutions of "watsup". | |
| 69 MockHostResolver resolver; | |
| 70 resolver.rules()->AddIPLiteralRule("watsup", "199.188.1.166", std::string()); | |
| 71 | |
| 72 SingleRequestHostResolver single_request_resolver(&resolver); | |
| 73 | |
| 74 // Resolve "watsup:90" using our SingleRequestHostResolver. | |
| 75 AddressList addrlist; | |
| 76 TestCompletionCallback callback; | |
| 77 HostResolver::RequestInfo request(HostPortPair("watsup", 90)); | |
| 78 int rv = single_request_resolver.Resolve( | |
| 79 request, DEFAULT_PRIORITY, &addrlist, callback.callback(), BoundNetLog()); | |
| 80 EXPECT_EQ(ERR_IO_PENDING, rv); | |
| 81 EXPECT_EQ(OK, callback.WaitForResult()); | |
| 82 | |
| 83 // Verify that the result is what we specified in the MockHostResolver. | |
| 84 ASSERT_FALSE(addrlist.empty()); | |
| 85 EXPECT_EQ("199.188.1.166", addrlist.front().ToStringWithoutPort()); | |
| 86 } | |
| 87 | |
| 88 // Test that the Cancel() method cancels any outstanding request. | |
| 89 TEST(SingleRequestHostResolverTest, Cancel) { | |
| 90 HangingHostResolver resolver; | |
| 91 | |
| 92 { | |
| 93 SingleRequestHostResolver single_request_resolver(&resolver); | |
| 94 | |
| 95 // Resolve "watsup:90" using our SingleRequestHostResolver. | |
| 96 AddressList addrlist; | |
| 97 TestCompletionCallback callback; | |
| 98 HostResolver::RequestInfo request(HostPortPair("watsup", 90)); | |
| 99 int rv = single_request_resolver.Resolve(request, | |
| 100 DEFAULT_PRIORITY, | |
| 101 &addrlist, | |
| 102 callback.callback(), | |
| 103 BoundNetLog()); | |
| 104 EXPECT_EQ(ERR_IO_PENDING, rv); | |
| 105 EXPECT_TRUE(resolver.has_outstanding_request()); | |
| 106 } | |
| 107 | |
| 108 // Now that the SingleRequestHostResolver has been destroyed, the | |
| 109 // in-progress request should have been aborted. | |
| 110 EXPECT_FALSE(resolver.has_outstanding_request()); | |
| 111 } | |
| 112 | |
| 113 // Test that the Cancel() method is a no-op when there is no outstanding | |
| 114 // request. | |
| 115 TEST(SingleRequestHostResolverTest, CancelWhileNoPendingRequest) { | |
| 116 HangingHostResolver resolver; | |
| 117 SingleRequestHostResolver single_request_resolver(&resolver); | |
| 118 single_request_resolver.Cancel(); | |
| 119 | |
| 120 // To pass, HangingHostResolver should not have received a cancellation | |
| 121 // request (since there is nothing to cancel). If it does, it will crash. | |
| 122 } | |
| 123 | |
| 124 } // namespace | |
| 125 | |
| 126 } // namespace net | |
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Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master