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// Copyright (c) 2011 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 <list>
#include "chrome/common/content_settings_pattern.h"
#include "chrome/browser/content_settings/content_settings_rule.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content_settings {
namespace {
class ListIterator : public RuleIterator {
public:
explicit ListIterator(const std::list<Rule>& rules)
: rules_(rules) {}
virtual ~ListIterator() {}
virtual bool HasNext() const {
return !rules_.empty();
}
virtual Rule Next() {
EXPECT_FALSE(rules_.empty());
// |front()| returns a reference but we're going to discard the object
// referred to; force copying here.
Rule rule = rules_.front();
rules_.pop_front();
return rule;
}
private:
std::list<Rule> rules_;
};
}
TEST(RuleTest, ConcatenationIterator) {
std::list<Rule> rules1;
rules1.push_back(Rule(ContentSettingsPattern::FromString("a"),
ContentSettingsPattern::Wildcard(),
base::Value::CreateIntegerValue(0)));
rules1.push_back(Rule(ContentSettingsPattern::FromString("b"),
ContentSettingsPattern::Wildcard(),
base::Value::CreateIntegerValue(0)));
std::list<Rule> rules2;
rules2.push_back(Rule(ContentSettingsPattern::FromString("c"),
ContentSettingsPattern::Wildcard(),
base::Value::CreateIntegerValue(0)));
rules2.push_back(Rule(ContentSettingsPattern::FromString("d"),
ContentSettingsPattern::Wildcard(),
base::Value::CreateIntegerValue(0)));
ScopedVector<RuleIterator> iterators;
iterators.push_back(new ListIterator(rules1));
iterators.push_back(new ListIterator(rules2));
ConcatenationIterator concatenation_iterator(&iterators, NULL);
Rule rule;
ASSERT_TRUE(concatenation_iterator.HasNext());
rule = concatenation_iterator.Next();
EXPECT_EQ(rule.primary_pattern, ContentSettingsPattern::FromString("a"));
ASSERT_TRUE(concatenation_iterator.HasNext());
rule = concatenation_iterator.Next();
EXPECT_EQ(rule.primary_pattern, ContentSettingsPattern::FromString("b"));
ASSERT_TRUE(concatenation_iterator.HasNext());
rule = concatenation_iterator.Next();
EXPECT_EQ(rule.primary_pattern, ContentSettingsPattern::FromString("c"));
ASSERT_TRUE(concatenation_iterator.HasNext());
rule = concatenation_iterator.Next();
EXPECT_EQ(rule.primary_pattern, ContentSettingsPattern::FromString("d"));
EXPECT_FALSE(concatenation_iterator.HasNext());
}
} // namespace content_settings
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