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// Copyright 2014 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 "net/spdy/hpack_entry.h"
#include <string>
#include "testing/gtest/include/gtest/gtest.h"
namespace net {
namespace {
using std::string;
const char kName[] = "headername";
const uint32 kNameStringLength = arraysize(kName) - 1;
const char kValue[] = "Header Value";
const uint32 kValueStringLength = arraysize(kValue) - 1;
// Make sure a default-constructed entry is still valid and starts off
// empty, unreferenced, and untouched.
TEST(HpackEntryTest, DefaultConstructor) {
HpackEntry entry;
EXPECT_TRUE(entry.name().empty());
EXPECT_TRUE(entry.value().empty());
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
EXPECT_EQ(HpackEntry::kSizeOverhead, entry.Size());
}
// Make sure a non-default-constructed HpackEntry starts off with
// copies of the given name and value, and unreferenced and untouched.
TEST(HpackEntryTest, NormalConstructor) {
string name = kName;
string value = kValue;
HpackEntry entry(name, value);
EXPECT_EQ(name, entry.name());
EXPECT_EQ(value, entry.value());
++name[0];
++value[0];
EXPECT_NE(name, entry.name());
EXPECT_NE(value, entry.name());
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
EXPECT_EQ(
kNameStringLength + kValueStringLength + HpackEntry::kSizeOverhead,
entry.Size());
}
// Make sure twiddling the referenced bit doesn't affect the touch
// count when it's kUntouched.
TEST(HpackEntryTest, IsReferencedUntouched) {
HpackEntry entry(kName, kValue);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
entry.SetReferenced(true);
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
entry.SetReferenced(false);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
}
// Make sure changing the touch count doesn't affect the referenced
// bit when it's false.
TEST(HpackEntryTest, TouchCountNotReferenced) {
HpackEntry entry(kName, kValue);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
entry.AddTouches(0);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(0u, entry.TouchCount());
entry.AddTouches(255);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(255u, entry.TouchCount());
// Assumes kUntouched is 1 + max touch count.
entry.AddTouches(HpackEntry::kUntouched - 256);
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched - 1, entry.TouchCount());
entry.ClearTouches();
EXPECT_FALSE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
}
// Make sure changing the touch count doesn't affect the referenced
// bit when it's true.
TEST(HpackEntryTest, TouchCountReferenced) {
HpackEntry entry(kName, kValue);
entry.SetReferenced(true);
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
entry.AddTouches(0);
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(0u, entry.TouchCount());
entry.AddTouches(255);
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(255u, entry.TouchCount());
// Assumes kUntouched is 1 + max touch count.
entry.AddTouches(HpackEntry::kUntouched - 256);
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched - 1, entry.TouchCount());
entry.ClearTouches();
EXPECT_TRUE(entry.IsReferenced());
EXPECT_EQ(HpackEntry::kUntouched, entry.TouchCount());
}
// Make sure equality takes into account all entry fields.
TEST(HpackEntryTest, Equals) {
HpackEntry entry1(kName, kValue);
HpackEntry entry2(kName, kValue);
EXPECT_TRUE(entry1.Equals(entry2));
entry2.SetReferenced(true);
EXPECT_FALSE(entry1.Equals(entry2));
entry2.SetReferenced(false);
EXPECT_TRUE(entry1.Equals(entry2));
entry2.AddTouches(0);
EXPECT_FALSE(entry1.Equals(entry2));
entry2.ClearTouches();
EXPECT_TRUE(entry1.Equals(entry2));
entry2.AddTouches(1);
EXPECT_FALSE(entry1.Equals(entry2));
entry2.ClearTouches();
EXPECT_TRUE(entry1.Equals(entry2));
HpackEntry entry3(kName, string(kValue) + kValue);
EXPECT_FALSE(entry1.Equals(entry3));
HpackEntry entry4(string(kName) + kName, kValue);
EXPECT_FALSE(entry1.Equals(entry4));
}
} // namespace
} // namespace net
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