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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/prerender/prerender_dispatcher.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "googleurl/src/gurl.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace prerender {
class PrerenderDispatcherTest : public testing::Test {
public:
PrerenderDispatcherTest() {}
bool is_prerender_url(const GURL& url) const {
return prerender_dispatcher_.IsPrerenderURL(url);
}
const PrerenderDispatcher::PrerenderMap& urls() const {
return prerender_dispatcher_.prerender_urls_;
}
void AddURL(const GURL& url) { prerender_dispatcher_.OnAddPrerenderURL(url); }
void RemoveURL(const GURL& url) {
prerender_dispatcher_.OnRemovePrerenderURL(url);
}
int GetCountForURL(const GURL& url) const {
PrerenderDispatcher::PrerenderMap::const_iterator entry = urls().find(url);
if (entry == urls().end())
return 0;
EXPECT_GT(entry->second, 0);
return entry->second;
}
private:
PrerenderDispatcher prerender_dispatcher_;
DISALLOW_COPY_AND_ASSIGN(PrerenderDispatcherTest);
};
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherEmpty) {
EXPECT_EQ(0U, urls().size());
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherSingleAdd) {
GURL foo_url = GURL("http://foo.com");
EXPECT_FALSE(is_prerender_url(foo_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_EQ(1, GetCountForURL(foo_url));
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherMultipleAdd) {
GURL foo_url = GURL("http://foo.com");
GURL bar_url = GURL("http://bar.com");
EXPECT_FALSE(is_prerender_url(foo_url));
EXPECT_FALSE(is_prerender_url(bar_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_FALSE(is_prerender_url(bar_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_FALSE(is_prerender_url(bar_url));
EXPECT_EQ(2, GetCountForURL(foo_url));
AddURL(bar_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_TRUE(is_prerender_url(bar_url));
EXPECT_EQ(2, GetCountForURL(foo_url));
EXPECT_EQ(1, GetCountForURL(bar_url));
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherSingleRemove) {
GURL foo_url = GURL("http://foo.com");
EXPECT_FALSE(is_prerender_url(foo_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
RemoveURL(foo_url);
EXPECT_FALSE(is_prerender_url(foo_url));
EXPECT_EQ(0, GetCountForURL(foo_url));
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherMultipleRemove) {
GURL foo_url = GURL("http://foo.com");
EXPECT_FALSE(is_prerender_url(foo_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_EQ(2, GetCountForURL(foo_url));
RemoveURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
EXPECT_EQ(1, GetCountForURL(foo_url));
RemoveURL(foo_url);
EXPECT_FALSE(is_prerender_url(foo_url));
EXPECT_EQ(0, GetCountForURL(foo_url));
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherRemoveWithoutAdd) {
GURL foo_url = GURL("http://foo.com");
EXPECT_FALSE(is_prerender_url(foo_url));
RemoveURL(foo_url);
EXPECT_FALSE(is_prerender_url(foo_url));
EXPECT_EQ(0, GetCountForURL(foo_url));
}
TEST_F(PrerenderDispatcherTest, PrerenderDispatcherRemoveTooMany) {
GURL foo_url = GURL("http://foo.com");
EXPECT_FALSE(is_prerender_url(foo_url));
AddURL(foo_url);
EXPECT_TRUE(is_prerender_url(foo_url));
RemoveURL(foo_url);
EXPECT_FALSE(is_prerender_url(foo_url));
RemoveURL(foo_url);
EXPECT_FALSE(is_prerender_url(foo_url));
EXPECT_EQ(0, GetCountForURL(foo_url));
}
} // end namespace prerender
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