Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 114 insertions, 0 deletions

diff --git a/chrome/browser/net/dns_host_info_unittest.cc b/chrome/browser/net/dns_host_info_unittest.cc
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+++ b/chrome/browser/net/dns_host_info_unittest.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Single threaded tests of DnsHostInfo functionality.
+
+#include <time.h>
+#include <string>
+
+#include "chrome/browser/net/dns_host_info.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+class DnsHostInfoTest : public testing::Test {
+};
+
+typedef chrome_browser_net::DnsHostInfo DnsHostInfo;
+
+TEST(DnsHostInfoTest, StateChangeTest) {
+  DnsHostInfo info_practice, info;
+  std::string hostname1("domain1.com"), hostname2("domain2.com");
+
+  // First load DLL, so that their load time won't interfere with tests.
+  // Some tests involve timing function performance, and DLL time can overwhelm
+  // test durations (which are considering network vs cache response times).
+  info_practice.SetHostname(hostname2);
+  info_practice.SetQueuedState();
+  info_practice.SetAssignedState();
+  info_practice.SetFoundState();
+  Sleep(500);  // Allow time for DLLs to fully load.
+
+  // Complete the construction of real test object.
+  info.SetHostname(hostname1);
+
+  EXPECT_TRUE(info.NeedsDnsUpdate(hostname1)) << "error in construction state";
+  info.SetQueuedState();
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1))
+    << "update needed after being queued";
+  info.SetAssignedState();
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1))
+    << "update needed while assigned to slave";
+  info.SetFoundState();
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1))
+    << "default expiration time is TOOOOO short";
+
+  // Note that time from ASSIGNED to FOUND was VERY short (probably 0ms), so the
+  // object should conclude that no network activity was needed.  As a result,
+  // the required time till expiration will be halved (guessing that we were
+  // half way through having the cache expire when we did the lookup.
+  EXPECT_LT(info.resolve_duration().InMilliseconds(),
+    DnsHostInfo::kMaxNonNetworkDnsLookupDuration.InMilliseconds())
+    << "Non-net time is set too low";
+
+  info.set_cache_expiration(TimeDelta::FromMilliseconds(300));
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+  // Note that we'll actually get an expiration (effectively) of
+  // 150ms, since there was no detected network activity time during lookup.
+  Sleep(80);  // Not enough time to pass our 150ms mark.
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+  Sleep(100);  // Be sure we sleep (80+100) enough to pass that 150ms mark.
+  EXPECT_TRUE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+
+  // That was a nice life when the object was found.... but next time it won't
+  // be found.  We'll sleep for a while, and then come back with not-found.
+  info.SetQueuedState();
+  info.SetAssignedState();
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1))
+    << "update needed while assigned to slave";
+  Sleep(25);  // Greater than minimal expected network latency on DNS lookup.
+  info.SetNoSuchNameState();
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1))
+    << "default expiration time is TOOOOO short";
+
+  // Note that now we'll actually utilize an expiration of 300ms,
+  // since there was detected network activity time during lookup.
+  // We're assuming the caching just started with our lookup.
+  Sleep(80);  // Not enough time to pass our 300ms mark.
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+  Sleep(80);  // Still not past our 300ms mark (only about 4+2ms)
+  EXPECT_FALSE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+  Sleep(150);
+  EXPECT_TRUE(info.NeedsDnsUpdate(hostname1)) << "expiration time not honored";
+}
+
+// TODO(jar): Add death test for illegal state changes, and also for setting
+// hostname when already set.
+
+}  // namespace anonymous